1  1575 122 DNA METHYLATION PATTERNS OF GENES RELATED TO IMMUNE RESPONSE IN THE DIFFERENT CLINICAL FORMS OF ORAL LICHEN PLANUS. BACKGROUND: THE ORAL LICHEN PLANUS IS A CHRONIC INFLAMMATORY DISEASE. ALTHOUGH ITS AETIOLOGY IS NOT WELL UNDERSTOOD, THE ROLE OF T LYMPHOCYTES IN ITS INFLAMMATORY EVENTS IS RECOGNISED. IDENTIFYING THE EPIGENETIC MECHANISMS INVOLVED IN THE PATHOGENESIS OF THIS IMMUNE-MEDIATED CONDITION IS FUNDAMENTAL FOR UNDERSTANDING THE INFLAMMATORY REACTION THAT OCCURS IN THE DISEASE. THE PURPOSE OF THIS WORK WAS TO EVALUATE THE METHYLATION PATTERN OF 21 IMMUNE RESPONSE-RELATED GENES IN THE DIFFERENT CLINICAL FORMS OF ORAL LICHEN PLANUS. METHODS: A CROSS-SECTIONAL STUDY WAS PERFORMED TO ANALYSE THE DNA METHYLATION PATTERNS IN THREE DISTINCT GROUPS OF ORAL LICHEN PLANUS: (I) RETICULAR/PLAQUE LESIONS; (II) EROSIVE LESIONS; (III) NORMAL ORAL MUCOSA (CONTROL GROUP). AFTER DNA EXTRACTION FROM BIOPSIES, THE SAMPLES WERE SUBMITTED TO DIGESTIONS BY METHYLATION-SENSITIVE AND METHYLATION-DEPENDENT ENZYMES AND DOUBLE DIGESTION. THE RELATIVE PERCENTAGE OF METHYLATED DNA FOR EACH GENE WAS PROVIDED USING REAL-TIME POLYMERASE CHAIN REACTION ARRAYS. RESULTS: HYPERMETHYLATION OF THE STAT5A GENE WAS OBSERVED ONLY IN THE CONTROL GROUP (59.0%). A HIGHER HYPERMETHYLATION OF THE ELANE GENE WAS FOUND IN RETICULAR/PLAQUE LESIONS (72.1%) COMPARED TO THE EROSIVE LESIONS (50.0%). CONCLUSION: OUR RESULTS SHOW VARIATIONS IN THE METHYLATION PROFILE OF IMMUNE RESPONSE-RELATED GENES, ACCORDING TO THE CLINICAL TYPE OF ORAL LICHEN PLANUS AFTER COMPARING WITH THE NORMAL ORAL MUCOSA. FURTHER STUDIES ARE NECESSARY TO VALIDATE THESE FINDINGS USING GENE EXPRESSION ANALYSIS.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
2  2824  16 FLAVONOIDS IN BONE EROSIVE DISEASES: PERSPECTIVES IN OSTEOPOROSIS TREATMENT. IMBALANCE OF BONE HOMEOSTASIS, WITH EXCESSIVE BONE RESORPTION COMPARED WITH BONE FORMATION, LEADS TO THE DEVELOPMENT OF PROGRESSIVE OSTEOPENIA LEADING TO LOWER BONE RESISTANCE TO LOAD, WITH CONSEQUENT PAIN AND FUNCTIONAL LIMITATIONS. PHYTOCHEMICALS WITH THERAPEUTIC AND PREVENTIVE EFFECTS AGAINST BONE RESORPTION HAVE RECENTLY RECEIVED INCREASING ATTENTION SINCE THEY ARE POTENTIALLY MORE SUITABLE FOR LONG-TERM USE THAN TRADITIONAL THERAPEUTIC CHEMICAL COMPOUNDS. IN THIS SYSTEMATIC REVIEW OF THE LITERATURE OF THE PAST 5 YEARS, COMPREHENSIVE INFORMATION IS PROVIDED ON FLAVONOIDS WITH POTENTIAL ANTIRESORPTION AND PRO-OSTEOGENIC EFFECTS. IT AIMS TO HIGHLIGHT THE MOLECULAR MECHANISMS OF THESE MOLECULES, OFTEN EPIGENETIC, AND THEIR POSSIBLE PHARMACOLOGICAL USE, WHICH IS OF GREAT IMPORTANCE FOR THE PREVENTION AND TREATMENT OF OSTEOPOROSIS (OP).	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
3  5382  32 RECURRENT CHROMOSOMAL AND EPIGENETIC ALTERATIONS IN ORAL SQUAMOUS CELL CARCINOMA AND ITS PUTATIVE PREMALIGNANT CONDITION ORAL LICHEN PLANUS. HEAD AND NECK SQUAMOUS CELL CARCINOMA (HNSCC) AFFECTS ABOUT 700.000 INDIVIDUALS PER YEAR WORLDWIDE WITH ORAL SQUAMOUS CELL CARCINOMA (OSCC) AS A MAJOR SUBCATEGORY. DESPITE A COMPREHENSIVE TREATMENT CONCEPT INCLUDING SURGERY, RADIATION, AND CHEMOTHERAPY THE 5-YEAR SURVIVAL RATE IS STILL ONLY ABOUT 50 PERCENT. CHRONIC INFLAMMATION IS ONE OF THE HALLMARKS OF CARCINOGENESIS. UNTIL NOW, LITTLE IS KNOWN ABOUT THE PREMALIGNANT STATUS OF ORAL LICHEN PLANUS (OLP) AND MOLECULAR ALTERATIONS IN OLP ARE STILL POORLY CHARACTERIZED. OUR STUDY AIMS TO DELINEATE DIFFERENTIAL DNA METHYLATION PATTERNS IN OLP, OSCC, AND NORMAL ORAL MUCOSA. BY APPLYING A BEAD CHIP APPROACH, WE IDENTIFIED ALTERED CHROMOSOMAL PATTERNS CHARACTERISTIC FOR OSCC WHILE FINDING NO RECURRENT ALTERATIONS IN OLP. IN CONTRAST, WE IDENTIFIED NUMEROUS ALTERATIONS IN THE DNA METHYLATION PATTERN IN OLP, AS COMPARED TO NORMAL CONTROLS, THAT WERE ALSO PRESENT IN OSCC. OUR DATA SUPPORT THE HYPOTHESIS THAT OLP IS A PRECURSOR LESION OF OSCC SHARING MULTIPLE EPIGENETIC ALTERATIONS WITH OSCC.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
4  3862  27 ISOPATHIC USE OF AUTO-SARCODE OF DNA AS ANTI-MIASMATIC HOMEOPATHIC MEDICINE AND MODULATOR OF GENE EXPRESSION? INTRODUCTION: IN ADDITION TO THE FOUR PILLARS OF HOMEOPATHY, VITALISM AND THE MIASMATIC THEORY ARE OFTEN USED TO EXPLAIN THE HEALTH-DISEASE PROCESS. ACCORDING TO HAHNEMANN'S CONCEPTS, HOMEOPATHIC MIASMS ARE THE MAIN OBSTACLE TO THE CURE OF CHRONIC DISEASES, WITH PSORA BEING THE FUNDAMENTAL CAUSE OF ALL FORMS OF DISEASES. ACCORDING TO MODERN GENETICS, THE DISEASE-PROMOTING EPIGENETIC ALTERATIONS ARE THE FUNDAMENTAL CAUSE OF THE MANIFESTATION OF CHRONIC DISEASES. OBJECTIVE: THIS ARTICLE DEVELOPS A PHILOSOPHICAL-SCIENTIFIC CORRELATION BETWEEN CHRONIC MIASMS AND DISEASE-PROMOTING EPIGENETIC MODIFICATIONS, AIMING TO JUSTIFY THE ISOPATHIC USE OF AUTO-SARCODE OF AN INDIVIDUAL'S DNA AS HOMEOPATHIC MEDICINE. RESULTS: BASED ON THE STUDY OF HOMEOPATHIC DOCTRINE AND EPIGENETICS, A CONCEPTUAL AND FUNCTIONAL CORRELATION IS OBSERVED BETWEEN HOMEOPATHIC CHRONIC MIASMS AND DISEASE-PROMOTING EPIGENETIC MODIFICATIONS. ADDITIONALLY, SEVERAL EXPERIMENTAL STUDIES SUGGEST THAT HOMEOPATHY'S MECHANISM OF ACTION MAY BE BY MODULATING GENE EXPRESSION. CONCLUSIONS: BY THE PHILOSOPHICAL-SCIENTIFIC CORRELATIONS DESCRIBED, IT IS INFERRED THAT DISEASE-PROMOTING EPIGENETIC ALTERATIONS ARE THE BIOLOGICAL REPRESENTATION OF THE CHRONIC MIASMS, SUGGESTING THE ISOPATHIC USE OF AUTO-SARCODE OF DNA AS HOMEOPATHIC THERAPEUTIC MODULATOR OF GENE EXPRESSION FOR THE MANAGEMENT OF CHRONIC DISEASES.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
5  6526  27 TRANSCRIPTIONAL CHANGES IN THE OVARIES OF PERCH FROM CHERNOBYL. FISH HAVE BEEN HIGHLY EXPOSED TO RADIATION IN FRESHWATER SYSTEMS AFTER THE CHERNOBYL NUCLEAR POWER PLANT (NPP) ACCIDENT IN 1986 AND IN FRESHWATER AND MARINE SYSTEMS AFTER THE MORE RECENT FUKUSHIMA NPP ACCIDENT IN 2011. IN THE YEARS AFTER THE ACCIDENT, THE RADIOACTIVITY LEVELS RAPIDLY DECLINED DUE TO RADIOACTIVE DECAY AND ENVIRONMENTAL PROCESSES, BUT CHRONIC LOWER DOSE EXPOSURES PERSISTED. TO GAIN INSIGHTS INTO THE LONG-TERM EFFECTS OF ENVIRONMENTAL LOW DOSE RADIATION ON FISH OVARIES DEVELOPMENT, A HIGH-THROUGHPUT TRANSCRIPTOMIC APPROACH INCLUDING A DE NOVO ASSEMBLY WAS APPLIED TO DIFFERENT GONAD PHENOTYPES OF FEMALE PERCH: DEVELOPED GONADS FROM REFERENCE LAKES, DEVELOPED/IRRADIATED FROM MEDIUM CONTAMINATED LAKE, AND BOTH DEVELOPED/IRRADIATED AND UNDEVELOPED FROM MORE HIGHLY CONTAMINATED LAKES. THIS IS THE MOST COMPREHENSIVE ANALYSIS TO DATE OF THE GENE RESPONSES IN WILDLIFE REPRODUCTIVE SYSTEM TO RADIATION. SOME GENE RESPONSES THAT WERE MODULATED IN IRRADIATED GONADS WERE FOUND TO BE INVOLVED IN BIOLOGICAL PROCESSES INCLUDING CELL DIFFERENTIATION AND PROLIFERATION (GGNB2, MOD5, RERGL), CYTOSKELETON ORGANIZATION (K1C18, MTPN), GONAD DEVELOPMENT (NELL2, TCP4), LIPID METABOLISM (LDAH, AT11B, NLTP), REPRODUCTION (CYB5, CYP17A, OVOS), DNA DAMAGE REPAIR (WDHD1, RAD51, HUS1), AND EPIGENETIC MECHANISMS (DMAP1). IDENTIFICATION OF THESE GENES PROVIDES A BETTER UNDERSTANDING OF THE UNDERLYING MOLECULAR MECHANISMS UNDERPINNING THE DEVELOPMENT OF THE GONAD PHENOTYPES OF WILD PERCH AND HOW FISH MAY RESPOND TO CHRONIC EXPOSURE TO RADIATION IN THEIR NATURAL ENVIRONMENT, THOUGH CAUSAL ATTRIBUTION OF GENE RESPONSES REMAINS UNCLEAR IN THE UNDEVELOPED GONADS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
6  5604  28 ROSAVIN AMELIORATES HEPATIC INFLAMMATION AND FIBROSIS IN THE NASH RAT MODEL VIA TARGETING HEPATIC CELL DEATH. BACKGROUND: NON-ALCOHOLIC FATTY LIVER DISEASE (NAFLD) REPRESENTS THE MOST COMMON FORM OF CHRONIC LIVER DISEASE THAT URGENTLY NEEDS EFFECTIVE THERAPY. ROSAVIN, A MAJOR CONSTITUENT OF THE RHODIOLA ROSEA PLANT OF THE FAMILY CRASSULACEAE, IS BELIEVED TO EXHIBIT MULTIPLE PHARMACOLOGICAL EFFECTS ON DIVERSE DISEASES. HOWEVER, ITS EFFECT ON NON-ALCOHOLIC STEATOHEPATITIS (NASH), THE PROGRESSIVE FORM OF NAFLD, AND THE UNDERLYING MECHANISMS ARE NOT FULLY ILLUSTRATED. AIM: INVESTIGATE THE PHARMACOLOGICAL ACTIVITY AND POTENTIAL MECHANISM OF ROSAVIN TREATMENT ON NASH MANAGEMENT VIA TARGETING HEPATIC CELL DEATH-RELATED (HSPD1/TNF/MMP14/ITGB1) MRNAS AND THEIR UPSTREAM NONCODING RNA REGULATORS (MIRNA-6881-5P AND LNC-SPARCL1-1:2) IN NASH RATS. RESULTS: HIGH SUCROSE HIGH FAT (HSHF) DIET-INDUCED NASH RATS WERE TREATED WITH DIFFERENT CONCENTRATIONS OF ROSAVIN (10, 20, AND 30 MG/KG/DAY) FOR THE LAST FOUR WEEKS OF DIETARY MANIPULATION. THE DATA REVEALED THAT ROSAVIN HAD THE ABILITY TO MODULATE THE EXPRESSION OF THE HEPATIC CELL DEATH-RELATED RNA PANEL THROUGH THE UPREGULATION OF BOTH (HSPD1/TNF/MMP14/ITGB1) MRNAS AND THEIR EPIGENETIC REGULATORS (MIRNA-6881-5P AND LNC-SPARCL1-1:2). MOREOVER, ROSAVIN AMELIORATED THE DETERIORATION IN BOTH LIVER FUNCTIONS AND LIPID PROFILE, AND THEREBY IMPROVED THE HEPATIC INFLAMMATION, FIBROSIS, AND APOPTOSIS, AS EVIDENCED BY THE DECREASED PROTEIN LEVELS OF IL6, TNF-ALPHA, AND CASPASE-3 IN LIVER SECTIONS OF TREATED ANIMALS COMPARED TO THE UNTREATED NASH RATS. CONCLUSION: ROSAVIN HAS DEMONSTRATED A POTENTIAL ABILITY TO ATTENUATE DISEASE PROGRESSION AND INHIBIT HEPATIC CELL DEATH IN THE NASH ANIMAL MODEL. THE PRODUCED EFFECT WAS CORRELATED WITH UPREGULATION OF THE HEPATIC CELL DEATH-RELATED (HSPD1, TNF, MMP14, AND ITGB1) MRNAS-(MIRNA-6881-5P-(LNC-SPARCL1-1:2) RNA PANEL.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
7  1422  42 DIFFERENTIAL CPG DNA METHYLATION OF PERIPHERAL B CELLS, CD4(+) T CELLS, AND SALIVARY GLAND TISSUES IN IGG4-RELATED DISEASE. OBJECTIVES: IMMUNOGLOBULIN-G4-RELATED DISEASE (IGG4-RD) IS A DISTINCT SYSTEMIC AUTOIMMUNE-MEDIATED DISEASE MANIFESTING AS CHRONIC INFLAMMATION AND TISSUE FIBROSIS. SINCE THE ROLE OF DNA METHYLATION IN THE PATHOGENESIS OF IGG4-RD IS STILL UNCLEAR, WE CONDUCT THIS STUDY TO INVESTIGATE EPIGENETIC MODIFICATIONS IN IGG4-RD. METHODS: A GENOME-WIDE DNA METHYLATION STUDY WAS CONDUCTED WITH B CELLS, CD4(+) T CELLS, AND SALIVARY GLAND TISSUES FROM IGG4-RD PATIENTS AND MATCHED CONTROLS BY USING THE ILLUMINA HUMANMETHYLATION 850K BEADCHIP. WE FURTHER PERFORMED PYROSEQUENCING AND IMMUNOHISTOCHEMISTRY ASSAYS TO VALIDATE THE METHYLATION STATUS OF SOME TARGETS OF INTEREST. RESULTS: WE IDENTIFIED DIFFERENTIALLY METHYLATED CPG SITES INCLUDING 44 HYPOMETHYLATED AND 166 HYPERMETHYLATED DIFFERENTIALLY METHYLATED PROBES (DMPS) IN B CELLS AND 260 HYPOMETHYLATED AND 112 HYPERMETHYLATED DMPS IN CD4(+) T CELLS FROM 10 IGG4-RD PATIENTS COMPARED WITH 10 HEALTHY CONTROLS. WE ALSO IDENTIFIED 36945 HYPOMETHYLATED AND 78380 HYPERMETHYLATED DMPS IN SALIVARY GLAND TISSUES OF 4 IGG4-RD PATIENTS COMPARED WITH 4 CONTROLS. DPM2 (CG21181453), IQCK (CG10266221), AND ABCC13 (CG05699681, CG04985582) WERE HYPERMETHYLATED AND MBP (CG18455083) WAS HYPOMETHYLATED IN B CELLS, CD4(+) T CELLS, AND SALIVARY GLAND TISSUES OF IGG4-RD PATIENTS. WE ALSO OBSERVED THE HYPOMETHYLATED HLA-DQB2 IN CD4(+) T CELLS FROM IGG4-RD PATIENTS. KYOTO ENCYCLOPEDIA OF GENES AND GENOMES (KEGG) PATHWAY ANALYSIS OF DMPS IN SALIVARY GLAND TISSUES OF IGG4-RD PATIENTS REVEALED ENRICHMENT OF PATHWAYS INVOLVED IN THE REGULATION OF IMMUNE CELL RESPONSES AND FIBROSIS. CONCLUSION: THIS IS THE FIRST DNA METHYLATION STUDY IN PERIPHERAL B CELLS, CD4(+) T CELLS, AND SALIVARY GLAND TISSUES FROM IGG4-RD PATIENTS. OUR FINDINGS HIGHLIGHTED THE ROLE OF EPIGENETIC MODIFICATION OF DNA METHYLATION AND IDENTIFIED SEVERAL GENES AND PATHWAYS POSSIBLY INVOLVED IN IGG4-RD PATHOGENESIS.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
8  5968  16 TERPENOID TREATMENT IN OSTEOPOROSIS: THIS IS WHERE WE HAVE COME IN RESEARCH. LOWER BONE RESISTANCE TO LOAD IS DUE TO THE IMBALANCE OF BONE HOMEOSTASIS, WHERE EXCESSIVE BONE RESORPTION, COMPARED WITH BONE FORMATION, DETERMINES A PROGRESSIVE OSTEOPENIA, LEADING TO A HIGH RISK OF FRACTURES AND CONSEQUENT PAIN AND FUNCTIONAL LIMITATIONS. TERPENOIDS, WITH THEIR ACTIVITIES AGAINST BONE RESORPTION, HAVE RECENTLY RECEIVED INCREASED ATTENTION FROM RESEARCHERS. THEY ARE POTENTIALLY MORE SUITABLE FOR LONG-TERM USE COMPARED WITH TRADITIONAL THERAPEUTICS. IN THIS REVIEW OF THE LITERATURE OF THE PAST 5 YEARS, WE PROVIDE COMPREHENSIVE INFORMATION ON TERPENOIDS, WITH THEIR ANTI-OSTEOPOROTIC EFFECTS, HIGHLIGHTING MOLECULAR MECHANISMS THAT ARE OFTEN IN EPIGENETIC KEY AND A POSSIBLE PHARMACOLOGICAL USE IN OSTEOPOROSIS PREVENTION AND TREATMENT.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
9  5621  37 SCREENING METHYLATION OF DNA REPAIR GENES IN THE ORAL MUCOSA OF CHRONIC SMOKERS. OBJECTIVE: THE AIM OF THIS STUDY WAS TO EVALUATE THE EPIGENETIC CHANGES IN THE PROCESS OF ORAL CARCINOGENESIS BY SCREENING THE METHYLATION OF REPAIR GENES IN CHRONIC SMOKERS. DESIGN: TWO GROUPS WERE FORMED: GROUP 1: 16 SMOKERS WITH CONSUMPTION OF 20 CIGARETTES/DAY FOR AT LEAST 10 YEARS; AND GROUP 2: 10 NON-SMOKING. EXFOLIATIVE CYTOLOGY OF THE TONGUE WAS PERFORMED, AND THE EXTRACTED DNA WAS TREATED BY ENZYMES. THE PCR ARRAY SYSTEM PERFORMED METHYLATION SCREENING TO EVALUATE 22 DNA REPAIR GENES, AND THE RESULTS WERE VALIDATED BY RT-QPCR FOR EACH GENE WITH METHYLATION LEVELS >/=10%. RESULTS: HIGHEST PERCENTAGES OF METHYLATION WERE OBSERVED FOR MLH3 AND XRCC1 GENES (11-20% METHYLATION) AND IN ONE CASE FOR MRE11A AND PMS2 (>50% METHYLATION). STATISTICAL ANALYSIS SHOWED SIGNIFICANT DIFFERENCES IN THE EXPRESSION OF THE GENES MRE11A (P = 0.0002), PMS2(P = 0.0068), XRCC1 (P = 0.0080) AND MLH3 (0.0057) BETWEEN THE TWO GROUPS. CONCLUSION: THE EFFECTS OF CHRONIC SMOKING ON ORAL MUCOSA LED TO THE METHYLATION OF GENES MRE11A PMS2, XRCC1 AND MLH3, BUT RESULTED IN A REDUCTION OF GENE EXPRESSION OF MRE11A AND PMS2, WHICH SHOWED >/=50% METHYLATION. THESE RESULTS PROVIDE EVIDENCE THAT SMOKING CAUSE METHYLATION AND REDUCED EXPRESSION OF REPAIR GENES.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
10   850  33 CHILDREN WITH CHRONIC IMMUNE THROMBOCYTOPENIA EXHIBIT HIGH EXPRESSION OF HUMAN ENDOGENOUS RETROVIRUSES TRIM28 AND SETDB1. CHRONIC IMMUNE THROMBOCYTOPENIA (CITP) IS AN AUTOIMMUNE DISEASE WHOSE UNDERLYING BIOLOGIC MECHANISMS REMAIN ELUSIVE. HUMAN ENDOGENOUS RETROVIRUSES (HERVS) DERIVE FROM ANCESTRAL INFECTIONS AND CONSTITUTE ABOUT 8% OF OUR GENOME. A WEALTH OF CLINICAL AND EXPERIMENTAL STUDIES HIGHLIGHTS THEIR PIVOTAL PATHOGENETIC ROLE IN AUTOIMMUNE DISEASES. EPIGENETIC MECHANISMS, SUCH AS THOSE MODULATED BY TRIM28 AND SETDB1, ARE INVOLVED IN HERV ACTIVATION AND REGULATION OF IMMUNE RESPONSE. WE ASSESSED, THROUGH A POLYMERASE CHAIN REACTION REAL-TIME TAQMAN AMPLIFICATION ASSAY, THE TRANSCRIPTION LEVELS OF POL GENES OF HERV-H, HERV-K, AND HERV-W; ENV GENES OF SYNCYTIN (SYN)1, SYN2, AND HERV-W; AS WELL AS TRIM28 AND SETDB1 IN WHOLE BLOOD FROM 34 CHILDREN WITH CITP AND AGE-MATCHED HEALTHY CONTROLS (HC). THE TRANSCRIPTIONAL LEVELS OF ALL HERV SEQUENCES, WITH THE EXCEPTION OF HERV-W-ENV, WERE SIGNIFICANTLY ENHANCED IN CHILDREN WITH CITP AS COMPARED TO HC. PATIENTS ON ELTROMBOPAG TREATMENT EXHIBITED LOWER EXPRESSION OF SYN1, SYN2, AND HERV-W-ENV AS COMPARED TO UNTREATED PATIENTS. THE MRNA CONCENTRATIONS OF TRIM28 AND SETDB1 WERE SIGNIFICANTLY HIGHER AND WERE POSITIVELY CORRELATED WITH THOSE OF HERVS IN CITP PATIENTS. THE OVER-EXPRESSIONS OF HERVS AND TRIM28/SETDB1 AND THEIR POSITIVE CORRELATIONS IN PATIENTS WITH CITP ARE SUGGESTIVE CLUES OF THEIR CONTRIBUTION TO THE PATHOGENESIS OF THE DISEASE AND SUPPORT INNOVATIVE INTERVENTIONS TO INHIBIT HERV AND TRIM28/SETDB1 EXPRESSIONS IN PATIENTS UNRESPONSIVE TO STANDARD THERAPIES.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
11  5289  37 PROSTANOID RECEPTOR GENES CONFER POOR PROGNOSIS IN HEAD AND NECK SQUAMOUS CELL CARCINOMA VIA EPIGENETIC INACTIVATION. BACKGROUND: CHRONIC INFLAMMATION IS A RISK FACTOR FOR HEAD AND NECK SQUAMOUS CELL CARCINOMA (HNSCC) AND OTHER DISEASES. PROSTANOID RECEPTORS ARE CLEARLY INVOLVED IN THE DEVELOPMENT OF MANY TYPES OF CANCER. HOWEVER, THEIR ROLE IS NOT SIMPLE AND IS POORLY UNDERSTOOD IN HNSCC. METHODS: METHYLATION PROFILES OF PROSTANOID RECEPTOR FAMILY GENES WERE GENERATED FOR TUMOUR SAMPLES OBTAINED FROM 274 PATIENTS WITH HNSCC, INCLUDING 69 HYPOPHARYNX, 51 LARYNX, 79 ORAL CAVITY, AND 75 OROPHARYNX TUMOUR SAMPLES, BY QUANTITATIVE METHYLATION-SPECIFIC PCR. PROMOTER METHYLATION WAS THEN EVALUATED WITH RESPECT TO VARIOUS CLINICAL CHARACTERISTICS AND PATIENT SURVIVAL. RESULTS: THE MEAN NUMBER OF METHYLATED GENES PER SAMPLE WAS 2.05 +/- 2.59 (RANGE 0 TO 9). PROMOTERS OF PTGDR1, PTGDR2, PTGER1, PTGER2, PTGER3, PTGER4, PTGFR, PTGIR, AND TBXA2R WERE METHYLATED IN 43.8%, 18.2%, 25.5%, 17.5%, 41.2%, 8.0%, 19.3%, 20.4%, AND 11.3% OF THE SAMPLES, RESPECTIVELY. METHYLATION INDICES FOR PROSTANOID RECEPTOR FAMILY GENES TENDED TO BE HIGHER AS THE NUMBER OF TET METHYLATION EVENTS INCREASED. PATIENTS WITH 5-9 METHYLATED GENES HAD A SIGNIFICANTLY LOWER SURVIVAL RATE THAN THAT OF PATIENTS WITH 0-4 METHYLATED GENES (LOG-RANK TEST, P= 0.007). IN MULTIVARIATE ANALYSES, PTGDR1 METHYLATION WAS MOST HIGHLY CORRELATED WITH RECURRENCE IN PATIENTS WITH HYPOPHARYNGEAL CANCER (P = 0.014). A SIMILAR CORRELATION WAS OBSERVED FOR PTGER4 IN PATIENTS WITH LARYNGEAL CANCER (P = 0.046). METHYLATION OF THE PTGIR AND TBXA2R PROMOTERS WAS POSITIVELY CORRELATED WITH RECURRENCE IN OROPHARYNGEAL CANCER (P = 0.028 AND P = 0.006, RESPECTIVELY). MOREOVER, PATIENTS WITH 5-9 METHYLATED GENES WERE EXTREMELY LOWER OF 5HMC LEVELS (P = 0.035) AND WAS CORRELATED WITH INCREASING EXPRESSION OF DNMT3A AND DNMT3B (P < 0.05 AND P < 0.05, RESPECTIVELY). CONCLUSION: WE CHARACTERISED THE RELATIONSHIP BETWEEN THE METHYLATION STATUS OF PROSTANOID RECEPTOR GENES AND RECURRENCE IN HNSCC. THESE RESULTS PROVIDE NEW PERSPECTIVES FOR THE DEVELOPMENT OF MOLECULAR TARGETED TREATMENT APPROACHES.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
12  4400  27 MODULATION OF HEPATIC STELLATE CELLS BY MUTAFLOR((R)) PROBIOTIC IN NON-ALCOHOLIC FATTY LIVER DISEASE MANAGEMENT. BACKGROUND: NAFLD AND NASH ARE EMERGING AS PRIMARY CAUSES OF CHRONIC LIVER DISEASE, INDICATING A NEED FOR AN EFFECTIVE TREATMENT. MUTAFLOR(R) PROBIOTIC, A MICROBIAL TREATMENT OF INTEREST, WAS EFFECTIVE IN SUSTAINING REMISSION IN ULCERATIVE COLITIS PATIENTS. OBJECTIVE: TO CONSTRUCT A GENETIC-EPIGENETIC NETWORK LINKED TO HSC SIGNALING AS A MODULATOR OF NAFLD/NASH PATHOGENESIS, THEN ASSESS THE EFFECTS OF MUTAFLOR((R)) ON THIS NETWORK. METHODS: FIRST, IN SILICO ANALYSIS WAS USED TO CONSTRUCT A GENETIC-EPIGENETIC NETWORK LINKED TO HSC SIGNALING. SECOND, AN INVESTIGATION USING RATS, INCLUDING HFHSD INDUCED NASH AND MUTAFLOR((R)) TREATED ANIMALS, WAS DESIGNED. EXPERIMENTAL PROCEDURES INCLUDED BIOCHEMICAL AND HISTOPATHOLOGIC ANALYSIS OF RAT BLOOD AND LIVER SAMPLES. AT THE MOLECULAR LEVEL, THE EXPRESSION OF GENETIC (FOXA2, TEAD2, AND LATS2 MRNAS) AND EPIGENETIC (MIR-650, RPARP AS-1 LNCRNA) NETWORK WAS MEASURED BY REAL-TIME PCR. PCR RESULTS WERE VALIDATED WITH IMMUNOHISTOCHEMISTRY (ALPHA-SMA AND LATS2). TARGET EFFECTOR PROTEINS, IL-6 AND TGF-BETA, WERE ESTIMATED BY ELISA. RESULTS: MUTAFLOR((R)) ADMINISTRATION MINIMIZED BIOCHEMICAL AND HISTOPATHOLOGIC ALTERATIONS CAUSED BY NAFLD/NASH. HSC ACTIVATION AND EXPRESSION OF PROFIBROGENIC IL-6 AND TGF-BETA EFFECTOR PROTEINS WERE REDUCED VIA INHIBITION OF HEDGEHOG AND HIPPO PATHWAYS. PATHWAYS MAY HAVE BEEN INHIBITED THROUGH UPREGULATION OF RPARP AS-1 LNCRNA WHICH IN TURN DOWNREGULATED THE EXPRESSION OF MIR-650, FOXA2 MRNA AND TEAD2 MRNA AND UPREGULATED LATS2 MRNA EXPRESSION. CONCLUSION: MUTAFLOR((R)) MAY SLOW THE PROGRESSION OF NAFLD/NASH BY MODULATING A GENETIC-EPIGENETIC NETWORK LINKED TO HSC SIGNALING. THE PROBIOTIC MAY BE A USEFUL MODALITY FOR THE PREVENTION AND TREATMENT OF NAFLD/NASH.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
13  6072  36 THE DNA METHYLOME OF HUMAN VASCULAR ENDOTHELIUM AND ITS USE IN LIQUID BIOPSIES. BACKGROUND: VASCULAR ENDOTHELIAL CELLS (VECS) ARE AN ESSENTIAL COMPONENT OF EACH TISSUE, CONTRIBUTE TO MULTIPLE PATHOLOGIES, AND ARE TARGETED BY IMPORTANT DRUGS. YET, THERE IS A SHORTAGE OF BIOMARKERS TO ASSESS VEC TURNOVER. METHODS: TO DEVELOP DNA METHYLATION-BASED LIQUID BIOPSIES FOR VECS, WE DETERMINED THE METHYLOME OF VECS ISOLATED FROM FRESHLY DISSOCIATED HUMAN TISSUES. FINDINGS: A COMPARISON WITH A HUMAN CELL-TYPE METHYLOME ATLAS YIELDED THOUSANDS OF LOCI THAT ARE UNIQUELY UNMETHYLATED IN VECS. THESE SITES ARE TYPICALLY GENE ENHANCERS, OFTEN RESIDING ADJACENT TO VEC-SPECIFIC GENES. WE ALSO IDENTIFIED HUNDREDS OF GENOMIC LOCI THAT ARE DIFFERENTIALLY METHYLATED IN ORGANOTYPIC VECS, INDICATING THAT VECS FEEDING SPECIFIC ORGANS ARE DISTINCT CELL TYPES WITH A STABLE EPIGENETIC IDENTITY. WE ESTABLISHED UNIVERSAL AND LUNG-SPECIFIC VEC MARKERS AND EVALUATED THEIR PRESENCE IN CIRCULATING CELL-FREE DNA (CFDNA). NEARLY 2.5% OF CFDNA IN THE PLASMA OF HEALTHY INDIVIDUALS ORIGINATES FROM VECS. SEPSIS, GRAFT VERSUS HOST DISEASE, AND CARDIAC CATHETERIZATION ARE ASSOCIATED WITH ELEVATED LEVELS OF VEC-DERIVED CFDNA, INDICATIVE OF VASCULAR DAMAGE. LUNG-SPECIFIC VEC CFDNA IS SELECTIVELY ELEVATED IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) OR LUNG CANCER, REVEALING TISSUE-SPECIFIC VASCULAR TURNOVER. CONCLUSIONS: VEC CFDNA BIOMARKERS INFORM VASCULAR DYNAMICS IN HEALTH AND DISEASE, POTENTIALLY CONTRIBUTING TO EARLY DIAGNOSIS AND MONITORING OF PATHOLOGIES, AND ASSESSMENT OF DRUG ACTIVITY. FUNDING: THIS WORK WAS SUPPORTED BY THE BEUTLER RESEARCH PROGRAM, HELMSLEY CHARITABLE TRUST, JDRF, GRAIL AND THE DON FOUNDATION (TO Y.D.). Y.D HOLDS THE WALTER & GRETA STIEL CHAIR IN HEART STUDIES. B.G., R.S., J.M., D.N., T.K., AND Y.D. FILED PATENTS ON CFDNA ANALYSIS.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
14    16  35 4CRNA NEAT1 SPONGE ADSORPTION OF MIR-378 MODULATES ACTIVITY OF LIPOPOLYSACCHARIDE-TREATED ARTICULAR CHONDROCYTES AND INFLUENCES THE PATHOLOGICAL DEVELOPMENT OF OSTEOARTHRITIS. CONTEXT: OSTEOARTHRITIS (OA) IS A CHRONIC JOINT DISEASE THAT CAN EVENTUALLY LEAD TO DEGENERATION, FIBROSIS, FRACTURES, AND DEFECTS OF THE ARTICULAR CARTILAGE. LONG NON-CODING RNA (LNCRNA) IS A KEY SUBSTANCE IN MANY PROCESSES, SUCH AS EPIGENETIC REGULATION AND CELL-CYCLE AND CELL-DIFFERENTIATION MODULATION, AND ITS RELATIONSHIP WITH OA HAS BEEN REPEATEDLY VERIFIED. OBJECTIVE: THE STUDY INTENDED TO CLARIFY THE INFLUENCE OF LNCRNA NUCLEAR ENRICHED ABUNDANT TRANSCRIPT 1 (NEAT1), LNCRNA NEAT1, ON LIPOPOLYSACCHARIDE (LPS)-INDUCED OA CHONDROCYTES THROUGH SPONGE ADSORPTION OF MICRORNA-378 (MIR-378) AND TO PROVIDE NOVEL INSIGHTS INTO FUTURE DIAGNOSIS AND TREATMENT OF OA. DESIGN: THE RESEARCH TEAM PERFORMED AN ANIMAL STUDY. SETTING: THE STUDY TOOK PLACE IN THE DEPARTMENT OF REHABILITATION MEDICINE AT LINYI PEOPLE'S HOSPITAL IN LINYI, SHANGDONG, CHINA. ANIMALS: THE STUDY'S ANIMALS WERE 10 SPRAGUE DAWLEY (SD) RATS, 3-5 DAYS OLD AND 10-15 G IN WEIGHT, OF THE SPECIFIC-PATHOGEN-FREE (SPF) GRADE. INTERVENTION: THE RAT CHONDROCYTES FOR THE POSITIVE CONTROL GROUP (THE MODEL GROUP) WERE TREATED WITH 500 NG/ML OF LPS TO INDUCE OA. CHONDROCYTES TREATED WITH THE SAME AMOUNT OF NORMAL SALINE WERE USED AS THE NEGATIVE CONTROL GROUP. THE CHONDROCYTES OF THE LPS-INDUCED RATS WERE INTO SIX GROUPS: (1) A POSITIVE CONTROL GROUP TRANSFECTED WITH NEAT1-INTERFERING RNA, THE SH-NEAT1 GROUP; (2) A NEGATIVE CONTROL GROUP NOT TRANSFECTED WITH NEAT1-INTERFERING RNA, THE NEAT1 EMPTY VECTOR (NC-NEAT1) GROUP; (3) AN INTERVENTION GROUP CO-TRANSFECTED WITH NEAT1 INTERFERING RNA AND THE MIR-378 INHIBITOR SEQUENCE (INH-MIR-378 THE SH-NEAT1+ INH-MIR-378 GROUP; (4) A NEGATIVE CONTROL GROUP TRANSFECTED WITH NEAT1 INTERFERING RNA BUT NOT TRANSFECTED WITH THE MIR-378 INHIBITOR SEQUENCE, THE SH-NEAT1+ MIR-378 NEGATIVE CONTROL (NC-MIR-378) GROUP; (5) A NEGATIVE CONTROL GROUP TRANSFECTED WITH THE MIR-378 INHIBITOR SEQUENCE BUT NOT TRANSFECTED WITH NEAT1 INTERFERING RNA, THE NEAT1 EMPTY VECTOR (NC-NEAT1) + INH-MIR-378 GROUP; (6) A NEGATIVE CONTROL GROUP NOT TRANSFECTED WITH EITHER NEAT1 INTERFERING RNA OR THE MIR-378 INHIBITOR SEQUENCE, THE NC-NEAT1 + NC-MIR-378 GROUP. OUTCOME MEASURES: AN OA-CHONDROCYTE MODEL WAS INDUCED BY LPS AND MEASUREMENTS OF NEAT1 AND MIR-378 EXPRESSION WERE MADE BY REAL-TIME QUANTITATIVE REVERSE TRANSCRIPTION (QRT)- POLYMERASE CHAIN REACTION (PCR). THEN, SMALL NEAT1-INTERFERING RNA (SH-NEAT1), EMPTY VECTOR NEAT1 (NC-NEAT1), INHIBITOR-SEQUENCE-MIR-378 (INH-MIR-378), AND NEGATIVE-CONTROL-MIR-378 (NC-MIR-378) WERE TRANSFECTED INTO CELLS, AND CELL VIABILITY AND APOPTOSIS RATE WERE MEASURED. FINALLY, THE STUDY VERIFIED THE RELATIONSHIP BETWEEN NEAT1 AND MIR-378. RESULTS: COMPARED TO THE CONTROL GROUP, NEAT1 WAS SIGNIFICANTLY ELEVATED IN THE MODEL GROUP, AND ITS MIR-378 WAS SIGNIFICANTLY DECREASED. SILENCING NEAT1 CAN ENHANCE OA-CHONDROCYTE ACTIVITY AND DECREASE APOPTOSIS. WHEN NEAT1 AND MIR-378 WERE INHIBITED TOGETHER, AS SHOWN FORT THE NC-NEAT1 + NC-MIR-378 GROUP, NEAT1 EXPRESSION, AS WELL AS THE MULTIPLICATION AND APOPTOSIS ABILITY OF THE OA-MODEL CELLS, WERE THE SAME AS THOSE OF CELLS TRANSFECTED WITH AN EMPTY VECTOR, THE NC-NEAT1 GROUP. ALSO, THE NEAT1 + NC-MIR-378 GROUP'S CELL ACTIVITY WAS LOWER THAN THAT OF THE SH-NEAT1+NC-MIR-378 GROUP BUT HIGHER THAN THAT OF THE NC-NEAT1 + INH-MIR-378 GROUP. FINALLY, HIGHER FLUORESCENCE ACTIVITY OCCURRED FOR NEAT1-MUTANT TYPE (MUT) TRANSFECTED WITH INH-MIR-378. CONCLUSIONS: NEAT1, WHICH IS HIGHLY EXPRESSED IN OA, MEDIATES LPS-INDUCED OA-CHONDROCYTE ACTIVITY THROUGH SPONGE ADSORPTION OF MIR-378.	2022	

15  1457  41 DISEASE PROGRESSION FROM CHRONIC HEPATITIS C TO CIRRHOSIS AND HEPATOCELLULAR CARCINOMA IS ASSOCIATED WITH INCREASING DNA PROMOTER METHYLATION. BACKGROUND: CHANGES IN DNA METHYLATION PATTERNS ARE BELIEVED TO BE EARLY EVENTS IN HEPATOCARCINOGENESIS. A BETTER UNDERSTANDING OF METHYLATION STATES AND HOW THEY CORRELATE WITH DISEASE PROGRESSION WILL AID IN FINDING POTENTIAL STRATEGIES FOR EARLY DETECTION OF HCC. THE AIM OF OUR STUDY WAS TO ANALYZE THE METHYLATION FREQUENCY OF TUMOR SUPPRESSOR GENES, P14, P15, AND P73, AND A MISMATCH REPAIR GENE (O6MGMT) IN HCV RELATED CHRONIC LIVER DISEASE AND HCC TO IDENTIFY CANDIDATE EPIGENETIC BIOMARKERS FOR HCC PREDICTION. MATERIALS AND METHODS: 516 EGYPTIAN PATIENTS WITH HCV-RELATED LIVER DISEASE WERE RECRUITED FROM KASR ALAINI MULTIDISCIPLINARY HCC CLINIC FROM APRIL 2010 TO JANUARY 2012. SUBJECTS WERE DIVIDED INTO 4 DIFFERENT CLINICALLY DEFINED GROUPS - HCC GROUP (N=208), LIVER CIRRHOSIS GROUP (N=108), CHRONIC HEPATITIS C GROUP (N=100), AND CONTROL GROUP (N=100) - TO ANALYZE THE METHYLATION STATUS OF THE TARGET GENES IN PATIENT PLASMA USING EPITECT METHYL QPCR ARRAY TECHNOLOGY. METHYLATION WAS CONSIDERED TO BE HYPERMETHYLATED IF >10% AND/OR INTERMEDIATELY METHYLATED IF >60%. RESULTS: IN OUR SERIES, A SIGNIFICANT DIFFERENCE IN THE HYPERMETHYLATION STATUS OF ALL STUDIED GENES WAS NOTED WITHIN THE DIFFERENT STAGES OF CHRONIC LIVER DISEASE AND ULTIMATELY HCC. HYPERMETHYLATION OF THE P14 GENE WAS DETECTED IN 100/208 (48.1%), 52/108 (48.1%), 16/100 (16%) AND 8/100 (8%) AMONG HCC, LIVER CIRRHOSIS, CHRONIC HEPATITIS AND CONTROL GROUPS, RESPECTIVELY, WITH A STATISTICALLY SIGNIFICANT DIFFERENCE BETWEEN THE STUDIED GROUPS (P-VALUE 0.008). WE ALSO DETECTED P15 HYPERMETHYLATION IN 92/208 (44.2%), 36/108 (33.3%), 20/100 (20%) AND 4/100 (4%) , RESPECTIVELY (P-VALUE 0.006). IN ADDITION, HYPERMETHYLATION OF P73 WAS DETECTED IN 136/208 (65.4%), 72/108 (66.7%), 32/100 (32%) AND 4/100 (4%) (P-VALUE <0.001). ALSO, WE DETECTED O6MGMT HYPERMETHYLATION IN 84/208 (40.4%), 60/108 (55.3%), 20/100 (20%) AND 4/100 (4%), RESPECTIVELY (P VALUE <0.001. CONCLUSIONS: THE EPIGENETIC CHANGES OBSERVED IN THIS STUDY INDICATE THAT HCC TUMORS EXHIBIT SPECIFIC DNA METHYLATION SIGNATURES WITH POTENTIAL CLINICAL APPLICATIONS IN DIAGNOSIS AND PROGNOSIS. IN ADDITION, METHYLATION FREQUENCY COULD BE USED TO MONITOR WHETHER A PATIENT WITH CHRONIC HEPATITIS C IS LIKELY TO PROGRESS TO LIVER CIRRHOSIS OR EVEN HCC. WE CAN CONCLUDE THAT METHYLATION PROCESSES ARE NOT JUST EARLY EVENTS IN HEPATOCARCINOGENESIS BUT ACCUMULATE WITH PROGRESSION TO CANCER.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
16  6777  22 [ASSOCIATION OF P-MOBILE ELEMENT ACTIVITY AND DNA METHYLATION PATTERN CHANGES IN THE CONDITIONS OF DROSOPHILA MELANOGASTER PROLONGED IRRADIATION]. ASSOCIATION OF THE RADIOSENSITIVITY AND EPIGENETIC PATTERN DNA CHANGES AT THE CONDITIONS OF PROLONGED IRRADIATION WAS INVESTIGATED. TWO LABORATORY DROSOPHILA MELANOGASTER STRAINS (CANTON-S AND RI) IRRADIATED FOR 20 GENERATIONS TO LOW DOSES RATE (1.2 X 10(-1), 0.8 X 10(-8) AND 0.12 X 10(-8) GY/S) WERE USED AS EXPERIMENTAL OBJECTS. DNA FOR THE ANALYSIS WAS EXTRACTED SEPARATELY FOR THE FLIES OF MALES AND FEMALES. RESTRICTION ENDONUCLEASES GLUL, GLAL WERE USED. RESTRICTION ANALYSIS HAS SHOWN THAT THERE ARE DIFFERENT DNA METHYLATED PATTERNS FOR MALES AND FEMALES AS FOR CONTROL AND EXPOSED VARIANTS. AT THE CHRONIC IRRADIATION THERE WAS THE DECLINE OF METHYLATION LEVEL AT THE ENZYMES GLUL, GLAL SITES RECOGNITION.	2010	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
17  2042  35 EPIGENETIC CHARACTERISTICS IN INFLAMMATORY CANDIDATE GENES IN AGGRESSIVE PERIODONTITIS. BACKGROUND: PERIODONTITIS IS A CHRONIC INFLAMMATORY DISEASE TRIGGERED BY THE HOST IMMUNE RESPONSE. EPIGENETIC MODIFICATIONS ALSO AFFECT THE IMMUNE RESPONSE. WE ASSESSED CPG METHYLATION IN 22 INFLAMMATORY CANDIDATE GENES (ATF2, CCL25, CXCL14, CXCL3, CXCL5, CXCL6, FADD, GATA3, IL10RA, IL12A, IL12B, IL13, IL13RA1, IL15, IL17C, IL17RA, IL4R, IL6R, IL6ST, IL7, INHA, AND TYK2) WITH RESPECT TO THE OCCURRENCE OF AGGRESSIVE PERIODONTITIS (AGP). PATIENTS AND METHODS: IN THIS STUDY 15 AGP PATIENTS (53.3% MALES, 41.4+/-10.5 YEARS) AND 10 CONTROLS (40.0% MALES, 36.9+/-17.5 YEARS) WERE INCLUDED. THE METHYLATION PATTERNS OF GINGIVAL BIOPSIES WERE QUANTIFIED USING EPITECT(R) METHYL SIGNATURE PCR ARRAY HUMAN INFLAMMATORY RESPONSE. RESULTS: IN GINGIVAL BIOPSIES TAKEN FROM PATIENTS WITH AGP, CPG METHYLATION OF CCL25 (1.73% VS. 2.59%, P=0.015) AND IL17C (6.89% VS. 19.27%, P=0.002) WAS SIGNIFICANTLY REDUCED AS COMPARED WITH PERIODONTALLY HEALTHY TISSUES. DISCUSSION: WE SHOWED FOR THE FIRST TIME A DIFFERENTIAL METHYLATION PATTERN FOR CCL25 AND IL17C IN PERIODONTITIS. CCL25 PLAYS AN IMPORTANT ROLE IN T-CELL DEVELOPMENT, WHEREAS IL17C REGULATES INNATE EPITHELIAL IMMUNE RESPONSES. THE DECREASE IN CPG METHYLATION IS PRESUMABLY ACCOMPANIED BY AN INCREASE IN GENE EXPRESSION. THIS COULD LEAD TO A GREATER AVAILABILITY OF CCL25 AND INTERLEUKIN 17C AND SUPPORT PERIODONTAL LOSS OF ATTACHMENT.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
18  1791  29 EFFECT OF CHRONIC RADIATION ON THE FLAX (LINUM USITATISSIMUM L.) GENOME GROWN FOR SIX CONSECUTIVE GENERATIONS IN THE RADIOACTIVE CHERNOBYL AREA. THE GROWTH OF PLANTS UNDER CHRONIC RADIATION STRESS IN THE CHERNOBYL AREA MAY CAUSE CHANGES IN THE GENOME OF PLANTS. TO ASSESS THE EXTENT OF GENETIC AND EPIGENETIC CHANGES IN NUCLEAR DNA, SEEDS OF THE ANNUAL CROP FLAX (LINUM USITATISSIMUM L.) OF THE KYIVSKYI VARIETY, SOWN 21 YEARS AFTER THE ACCIDENT AND GROWN FOR SIX GENERATIONS IN RADIOACTIVE (RAD) AND REMEDIATED (REM) FIELDS WERE ANALYSED. FLAXSEED USED FOR SOWING FIRST GENERATION, WHICH SERVED AS A REFERENCE (REF), WAS ALSO ANALYSED. THE AFLP (AMPLIFIED FRAGMENT LENGTH POLYMORPHISM) REVEALED A HIGHER NUMBER OF SPECIFIC ECORI-MSEI LOCI (3.4-FOLD) IN POOLED FLAXSEED SAMPLES HARVESTED FROM THE RAD FIELD COMPARED WITH THE REM FIELD, INDICATING A LINK BETWEEN THE MUTATION PROCESS IN THE FLAX GENOME AND THE ONGOING ADAPTATION PROCESS. MSAP (METHYLATION-SENSITIVE AMPLIFIED POLYMORPHISM) DETECTING ECORI-MSPI AND ECORI-HPAII LOCI IN FLAX NUCLEAR DNA GENOME SHOWED NO SIGNIFICANT DIFFERENCES IN METHYLATION LEVEL, REACHING ABOUT 33% IN EACH OF THE GROUPS STUDIED. ON THE OTHER HAND, SIGNIFICANT CHANGES IN THE DNA METHYLATION PATTERN OF FLAXSEED SAMPLES HARVESTED FROM THE RAD FIELD COMPARED WITH CONTROLS WERE DETECTED. PAIRWISE F(ST) COMPARISON REVEALED WITHIN BOTH, ECORI-MSPI AND TRANSFORMED METHYLATION-SENSITIVE DATA SETS MORE THAN A 3-FOLD INCREASE OF GENETIC DIVERGENCE IN THE RAD FIELD COMPARED WITH BOTH CONTROLS. THESE RESULTS INDICATE THAT THE NUCLEAR GENOME OF FLAX EXPOSED TO CHRONIC RADIATION FOR SIX GENERATIONS HAS MORE MUTATIONS AND USES DNA METHYLATION AS ONE OF THE ADAPTATION MECHANISMS FOR SUSTAINABILITY UNDER ADVERSE CONDITIONS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
19  2974  39 GENETIC AND METHYLATION STATUS OF CDKN2A (P14(ARF)/P16(INK4A)) AND TP53 GENES IN RECURRENT RESPIRATORY PAPILLOMATOSIS. RECURRENT RESPIRATORY PAPILLOMATOSIS (RRP) IS A RARE AND CHRONIC DISEASE AFFECTING THE UPPER AIRWAY WITH PAPILLOMATOUS LESIONS CAUSED BY THE HUMAN PAPILLOMAVIRUS (HPV) INFECTION, ESPECIALLY HPV-6 AND/OR HPV-11 TYPES. LITTLE IS KNOWN ABOUT THE GENETIC AND EPIGENETIC DRIVERS IN RRP PATHOPHYSIOLOGY. FOR THIS PURPOSE, WE ANALYZED 27 PAPILLOMATOUS LESIONS FROM PATIENTS WITH RRP TO EVALUATE SOMATIC MUTATIONS AND METHYLATION STATUS IN CDKN2A (P14(ARF)/P16(INK4A)) AND TP53, WHICH ARE KEY TUMOR SUPPRESSOR GENES FOR THE CELL CYCLE CONTROL. SANGER SEQUENCING ANALYSIS REVEALED ONE SOMATIC MUTATION IN TP53 (C.733_734INSA) AND FOUR MUTATIONS IN CDKN2A (C.-30G > T, C.29_30INSA, C.69DELT, AND C.300C > A). THESE MUTATIONS WERE OBSERVED IN 10 PATIENTS, 6 OF WHICH CARRIED DOUBLE MUTATION. FURTHERMORE, 50% (5/10) OF THESE PATIENTS CARRYING SOMATIC MUTATIONS HAD RRP SEVERITY, REPRESENTING 62.5% (5/8) OF THE SEVERITY CASES IN THIS STUDY, ALBEIT NO SIGNIFICANT ASSOCIATION WAS FOUND BETWEEN SOMATIC MUTATIONS AND DISEASE SEVERITY. METHYLATION-SPECIFIC POLYMERASE CHAIN REACTION ASSAYS REVEALED P14(ARF) PROMOTER HYPERMETHYLATION IN 100% OF CASES, FOLLOWED BY TP53 (96.3%) AND P16(INK4A) (55.6%), SUGGESTING THE INFLUENCE OF HPV IN THE DNA METHYLATION MACHINERY. IN CONCLUSION, SOMATIC MUTATIONS WERE NOT COMMON EVENTS IDENTIFIED IN PATIENTS WITH RRP. HOWEVER, EPIGENETIC MODULATION BY HIGH METHYLATION RATES, PARTICULARLY FOR THE P14(ARF)/TP53 PATHWAY, SEEMS TO BE IN THE COURSE OF RRP DEVELOPMENT.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
20  1419  32 DIFFERENT CLINICAL FORMS OF HEREDITARY TYROSINEMIA (TYPE I) IN PATIENTS WITH IDENTICAL GENOTYPES. HEREDITARY TYROSINEMIA TYPE I (HTI, MCKUSICK 276700) IS AN AUTOSOMAL RECESSIVE DISEASE CAUSED BY DEFICIENT FUMARYLACETOACETATE HYDROLASE (FAH, EC 3.7.1.2) ACTIVITY. HTI IS CHARACTERIZED BY PROGRESSIVE LIVER DYSFUNCTION WITH NODULAR CIRRHOSIS OFTEN LEADING TO HEPATOCELLULAR CARCINOMA. TWO EXTREMES OF THE CLINICAL PHENOTYPE HAVE BEEN DESCRIBED: THE "ACUTE" (SEVERE, EARLY ONSET AND DEATH) AND "CHRONIC" (DELAYED ONSET AND SLOW COURSE) PHENOTYPE. ALLELIC HETEROGENEITY AND/OR MUTATION REVERSION IN HEPATIC CELLS HAVE BEEN PROPOSED EARLIER TO EXPLAIN THE CLINICAL HETEROGENEITY. TWO PROBANDS (ONE "ACUTE," ONE "CHRONIC") FROM THE FRENCH-CANADIAN ISOLATE WHERE HTI IS PREVALENT WERE STUDIED. BOTH WERE HOMOZYGOUS (GERM LINE) FOR THE SEVERE SPLICE MUTATION IVS12 + 5G --> A; BOTH SHOWED LIVER MOSAICISM FOR FAH IMMUNOREACTIVITY WITH EVIDENCE FOR MUTATION REVERSION TO HETEROZYGOSITY (IVS12 + 5G --> A/+) IN FAH-STAINED NODULES AS SHOWN BY AMPLIFICATION OF DNA EXTRACTED FROM MICRODISSECTED NODULES. WESTERN BLOT ANALYSIS OF PROTEINS FROM A REVERTED FAH-EXPRESSING NODULE SHOWED 29 +/- 3% FAH IMMUNOREACTIVE MATERIAL AS COMPARED TO AN AVERAGE NORMAL LIVER. THIS WAS CONSISTENT WITH THE MEASURED FAA HYDROLYTIC ACTIVITY (25%) IN THIS LARGE REGENERATING NODULE. THESE FINDINGS SHOW THAT GENOTYPIC HETEROGENEITY IS NOT A SUFFICIENT EXPLANATION FOR CLINICAL HETEROGENEITY AND IMPLICATE EPIGENETIC AND OTHER FACTORS MODIFYING THE PHENOTYPE IN HTI.	1998