1  4573 71 MYOCARDIAL INFARCTION-ASSOCIATED TRANSCRIPT, A LONG NONCODING RNA, IS OVEREXPRESSED DURING DILATED CARDIOMYOPATHY DUE TO CHRONIC CHAGAS DISEASE. LONG NONCODING RNAS (LNCRNAS) MODULATE GENE EXPRESSION AT THE EPIGENETIC, TRANSCRIPTIONAL, AND POSTTRANSCRIPTIONAL LEVELS. DYSREGULATION OF THE LNCRNA KNOWN AS MYOCARDIAL INFARCTION-ASSOCIATED TRANSCRIPT (MIAT) HAS BEEN ASSOCIATED WITH MYOCARDIAL INFARCTION. CHAGAS DISEASE CAUSES A SEVERE INFLAMMATORY DILATED CHRONIC CARDIOMYOPATHY (CCC). WE INVESTIGATED THE ROLE OF MIAT IN CCC. A WHOLE-TRANSCRIPTOME ANALYSIS OF HEART BIOPSY SPECIMENS AND FORMALIN-FIXED, PARAFFIN-EMBEDDED SAMPLES REVEALED THAT MIAT WAS OVEREXPRESSED IN PATIENTS WITH CCC, COMPARED WITH SUBJECTS WITH NONINFLAMMATORY DILATED CARDIOMYOPATHY AND CONTROLS. THESE RESULTS WERE CONFIRMED IN A MOUSE MODEL. RESULTS SUGGEST THAT MIAT IS A SPECIFIC BIOMARKER OF CCC.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
2  5125 20 POST-TRANSLATIONAL MODIFICATIONS OF TRYPANOSOMA CRUZI CANONICAL AND VARIANT HISTONES. CHAGAS DISEASE, CAUSED BY TRYPANOSOMA CRUZI, STILL AFFECTS MILLIONS OF PEOPLE AROUND THE WORLD. NO VACCINES NOR TREATMENT FOR CHRONIC CHAGAS DISEASE ARE AVAILABLE, AND CHEMOTHERAPY FOR THE ACUTE PHASE IS HINDERED BY LIMITED EFFICACY AND SEVERE SIDE EFFECTS. THE PROCESSES BY WHICH THE PARASITE ACQUIRES INFECTIVITY AND SURVIVES IN DIFFERENT HOSTS INVOLVE TIGHT REGULATION OF GENE EXPRESSION, MAINLY POST-TRANSCRIPTIONALLY. NEVERTHELESS, CHROMATIN STRUCTURE/ORGANIZATION OF TRYPANOSOMATIDS IS SIMILAR TO OTHER EUKARYOTES, INCLUDING HISTONE VARIANTS AND POST-TRANSLATIONAL MODIFICATIONS. EMERGING EVIDENCE SUGGESTS THAT EPIGENETIC MECHANISMS ALSO PLAY AN IMPORTANT ROLE IN THE BIOLOGY/PATHOGENESIS OF THESE PARASITES, MAKING EPIGENETIC TARGETS SUITABLE CANDIDATES TO DRUG DISCOVERY. HERE, WE PRESENT THE FIRST COMPREHENSIVE MAP OF POST-TRANSLATIONAL MODIFICATIONS OF T. CRUZI CANONICAL AND VARIANT HISTONES AND SHOW THAT ITS HISTONE CODE CAN BE AS SOPHISTICATED AS THAT OF OTHER EUKARYOTES. A TOTAL OF 13 DISTINCT MODIFICATION TYPES WERE IDENTIFIED, INCLUDING RATHER NOVEL AND UNUSUAL ONES SUCH AS ALTERNATIVE LYSINE ACYLATIONS, SERINE/THREONINE ACETYLATION, AND N-TERMINAL METHYLATION. SOME HISTONE MARKS CORRELATE TO THOSE DESCRIBED FOR OTHER ORGANISMS, SUGGESTING THAT SIMILAR REGULATORY MECHANISMS MAY BE IN PLACE. OTHERS, HOWEVER, ARE UNIQUE TO T. CRUZI OR TO TRYPANOSOMATIDS AS A GROUP AND MIGHT REPRESENT GOOD CANDIDATES FOR THE DEVELOPMENT OF ANTIPARASITIC DRUGS.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
3  6749 35 WHOLE-GENOME CARDIAC DNA METHYLATION FINGERPRINT AND GENE EXPRESSION ANALYSIS PROVIDE NEW INSIGHTS IN THE PATHOGENESIS OF CHRONIC CHAGAS DISEASE CARDIOMYOPATHY. BACKGROUND: CHAGAS DISEASE, CAUSED BY THE PROTOZOAN TRYPANOSOMA CRUZI, IS ENDEMIC IN LATIN AMERICA AND AFFECTS 10 MILLION PEOPLE WORLDWIDE. APPROXIMATELY 12000 DEATHS ATTRIBUTABLE TO CHAGAS DISEASE OCCUR ANNUALLY DUE TO CHRONIC CHAGAS DISEASE CARDIOMYOPATHY (CCC), AN INFLAMMATORY CARDIOMYOPATHY PRESENTING WITH HEART FAILURE AND ARRYTHMIA; 30% OF INFECTED SUBJECTS DEVELOP CCC YEARS AFTER INFECTION. GENETIC MECHANISMS PLAY A ROLE IN DIFFERENTIAL PROGRESSION TO CCC, BUT LITTLE IS KNOWN ABOUT THE ROLE OF EPIGENETIC MODIFICATIONS IN PATHOLOGICAL GENE EXPRESSION PATTERNS IN CCC PATIENTS' MYOCARDIUM. DNA METHYLATION IS THE MOST COMMON MODIFICATION IN THE MAMMALIAN GENOME. METHODS: WE INVESTIGATED THE IMPACT OF GENOME-WIDE CARDIAC DNA METHYLATION ON GLOBAL GENE EXPRESSION IN MYOCARDIAL SAMPLES FROM END-STAGE CCC PATIENTS, COMPARED TO CONTROL SAMPLES FROM ORGAN DONORS. RESULTS: IN TOTAL, 4720 GENES WERE DIFFERENTIALLY METHYLATED BETWEEN CCC PATIENTS AND CONTROLS, OF WHICH 399 WERE ALSO DIFFERENTIALLY EXPRESSED. SEVERAL OF THEM WERE RELATED TO HEART FUNCTION OR TO THE IMMUNE RESPONSE AND HAD METHYLATION SITES IN THEIR PROMOTER REGION. REPORTER GENE AND IN SILICO TRANSCRIPTION FACTOR BINDING ANALYSES INDICATED PROMOTER METHYLATION MODIFIED EXPRESSION OF KEY GENES. AMONG THOSE, WE FOUND POTASSIUM CHANNEL GENES KCNA4 AND KCNIP4, INVOLVED IN ELECTRICAL CONDUCTION AND ARRYTHMIA, SMOC2, INVOLVED IN MATRIX REMODELING, AS WELL AS ENKEPHALIN AND RUNX3, POTENTIALLY INVOLVED IN THE INCREASED T-HELPER 1 CYTOKINE-MEDIATED INFLAMMATORY DAMAGE IN HEART. CONCLUSIONS: RESULTS SUPPORT THAT DNA METHYLATION PLAYS A ROLE IN THE REGULATION OF EXPRESSION OF PATHOGENICALLY RELEVANT GENES IN CCC MYOCARDIUM, AND IDENTIFY NOVEL POTENTIAL DISEASE PATHWAYS AND THERAPEUTIC TARGETS IN CCC.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
4  2375 30 EPIGENETIC REGULATION OF TRANSCRIPTION FACTOR BINDING MOTIFS PROMOTES TH1 RESPONSE IN CHAGAS DISEASE CARDIOMYOPATHY. CHAGAS DISEASE, CAUSED BY THE PROTOZOAN TRYPANOSOMA CRUZI, IS AN ENDEMIC PARASITIC DISEASE OF LATIN AMERICA, AFFECTING 7 MILLION PEOPLE. ALTHOUGH MOST PATIENTS ARE ASYMPTOMATIC, 30% DEVELOP COMPLICATIONS, INCLUDING THE OFTEN-FATAL CHRONIC CHAGASIC CARDIOMYOPATHY (CCC). ALTHOUGH PREVIOUS STUDIES HAVE DEMONSTRATED SOME GENETIC DEREGULATIONS ASSOCIATED WITH CCCS, THE CAUSES OF THEIR DEREGULATIONS REMAIN POORLY DESCRIBED. BASED ON BULK RNA-SEQ AND WHOLE GENOME DNA METHYLATION DATA, WE INVESTIGATED THE GENETIC AND EPIGENETIC DEREGULATIONS PRESENT IN THE MODERATE AND SEVERE STAGES OF CCC. ANALYSIS OF HEART TISSUE GENE EXPRESSION PROFILE ALLOWED US TO IDENTIFY 1407 DIFFERENTIALLY EXPRESSED TRANSCRIPTS (DEGS) SPECIFIC FROM CCC PATIENTS. A TISSUE DNA METHYLATION ANALYSIS DONE ON THE SAME TISSUE HAS PERMITTED THE IDENTIFICATION OF 92 REGULATORY DIFFERENTIALLY METHYLATED REGIONS (DMR) LOCALIZED IN THE PROMOTER OF DEGS. AN IN-DEPTH STUDY OF THE TRANSCRIPTION FACTORS BINDING SITES (TFBS) IN THE DMRS CORROBORATED THE IMPORTANCE OF TFBS'S DNA METHYLATION FOR GENE EXPRESSION IN CCC MYOCARDIUM. TBX21, RUNX3 AND EBF1 ARE THE TRANSCRIPTION FACTORS WHOSE BINDING MOTIF APPEARS TO BE AFFECTED BY DNA METHYLATION IN THE LARGEST NUMBER OF GENES. BY COMBINING BOTH TRANSCRIPTOMIC AND METHYLOMIC ANALYSIS ON HEART TISSUE, AND METHYLOMIC ANALYSIS ON BLOOD, 4 BIOLOGICAL PROCESSES AFFECTED BY SEVERE CCC HAVE BEEN IDENTIFIED, INCLUDING IMMUNE RESPONSE, ION TRANSPORT, CARDIAC MUSCLE PROCESSES AND NERVOUS SYSTEM. AN ADDITIONAL STUDY ON BLOOD METHYLATION OF MODERATE CCC SAMPLES PUT FORWARD THE IMPORTANCE OF ION TRANSPORT AND NERVOUS SYSTEM IN THE DEVELOPMENT OF THE DISEASE.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
5   408 27 ANALYSIS OF GENE EXPRESSION AND METHYLATION DATASETS IDENTIFIED ADAMTS9, FKBP5, AND PFKBF3 AS BIOMARKERS FOR OSTEOARTHRITIS. BACKGROUND: OSTEOARTHRITIS (OA) IS A KIND OF CHRONIC OSTEOARTHROPATHY AND DEGENERATIVE JOINT DISEASE. EPIGENETIC REGULATION IN THE GENE EXPRESSION DYNAMICS HAS BECOME INCREASINGLY IMPORTANT IN OA. WE PERFORMED A COMBINED ANALYSIS OF TWO TYPES OF MICROARRAY DATASETS (GENE EXPRESSION AND DNA METHYLATION) TO IDENTIFY METHYLATION-BASED KEY BIOMARKERS TO PROVIDE A BETTER UNDERSTANDING OF MOLECULAR BIOLOGICAL MECHANISMS OF OA. METHODS: WE OBTAINED TWO EXPRESSION PROFILING DATASETS (GSE55235, GSE55457) AND ONE DNA METHYLATION PROFILING DATA SET (GSE63695) FROM THE GENE EXPRESSION OMNIBUS. FIRST, DIFFERENTIALLY EXPRESSED GENES (DEGS) BETWEEN PATIENTS WITH OA AND CONTROLS WERE IDENTIFIED USING THE LIMMA PACKAGE IN R(V3.4.4). THEN, FUNCTION ENRICHMENT ANALYSIS OF DEGS WAS PERFORMED USING A DAVID DATABASE. FOR DNA METHYLATION DATASETS, CHAMP METHYLATION ANALYSIS PACKAGE WAS USED TO IDENTIFY DIFFERENTIAL METHYLATION GENES (DMGS). FINALLY, A COMPREHENSIVE ANALYSIS OF DEGS AND DMGS WAS CONDUCTED TO IDENTIFY GENES THAT EXHIBITED DIFFERENTIAL EXPRESSION AND METHYLATION SIMULTANEOUSLY. RESULTS: WE IDENTIFIED 112 DEGS AND 2,896 DMGS IN PATIENTS WITH OA COMPARED WITH CONTROLS. FUNCTIONAL ANALYSIS OF DEGS OBTAINED THAT INFLAMMATORY RESPONSES, IMMUNE RESPONSES, AND POSITIVE REGULATION OF APOPTOSIS, TUMOR NECROSIS FACTOR (TNF) SIGNALING PATHWAY, AND OSTEOCLAST DIFFERENTIATION MAY BE INVOLVED IN THE PATHOGENESIS OF OA. CROSS-ANALYSIS REVEALED 26 GENES THAT EXHIBITED DIFFERENTIAL EXPRESSION AND METHYLATION IN OA. AMONG THEM, ADAMTS9, FKBP5, AND PFKBF3 WERE IDENTIFIED AS VALUABLE METHYLATION-BASED BIOMARKERS FOR OA. CONCLUSION: IN SUMMARY, OUR STUDY IDENTIFIED DIFFERENT MOLECULAR FEATURES BETWEEN PATIENTS WITH OA AND CONTROLS. THIS MAY PROVIDE NEW CLUES FOR CLARIFYING THE PATHOGENETIC MECHANISMS OF OA.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
6  1129 28 COMPREHENSIVE ANALYSIS OF MRNA-LNCRNA CO-EXPRESSION PROFILES IN MOUSE BRAIN DURING INFECTION WITH TOXOPLASMA GONDII. TOXOPLASMA GONDII IS AN OBLIGATE INTRACELLULAR PROTOZOAN PARASITE WHICH SERIOUSLY THREATENS THE HEALTH OF DOMESTIC ANIMALS AND HUMANS. LONG NON-CODING RNAS (LNCRNAS) ARE NON-PROTEIN-CODING TRANSCRIPTS GREATER THAN 200 NUCLEOTIDES, WHICH ARE WIDELY INVOLVED IN TRANSCRIPTIONAL AND EPIGENETIC REGULATIONS. HOWEVER, LITTLE IS KNOWN ABOUT THE ROLES OF HOST LNCRNAS IN THE RESPONSE TO T. GONDII INFECTIONS. IN THIS STUDY, USING ILLUMINA SEQUENCING TECHNOLOGY, WE ANALYZED THE EXPRESSION PROFILES OF MRNAS AND LNCRNAS IN BALB/C MOUSE BRAIN FOLLOWING INFECTION BY T. GONDII PRU STRAIN (TYPE II GENOTYPE) CYSTS. THE IDENTIFIED DIFFERENTIALLY EXPRESSED (DE) RNAS WERE SUBJECTED TO BIOINFORMATICS ANALYSIS. A TOTAL OF 2,090 ANNOTATED LNCRNAS ALONG WITH 3,577 NOVEL LNCRNAS WERE IDENTIFIED. IN THE ACUTELY INFECTED MOUSE BRAIN, A TOTAL OF 330 MRNAS AND 19 LNCRNAS WERE DYS-REGULATED, WHEREAS 136 DE MRNAS AND 9 DE LNCRNAS WERE IDENTIFIED IN CHRONICALLY INFECTED MOUSE BRAIN. GO ANALYSIS REVEALED THAT THESE DE MRNAS IDENTIFIED AT ACUTE INFECTION STAGE WERE INVOLVED IN IMMUNE RESPONSE, WHEREAS DE MRNAS FOUND AT CHRONIC INFECTION STAGE WERE MOSTLY ENRICHED IN RESPONSE TO PROTOZOAN. KEGG ANALYSIS SHOWED THAT DE MRNAS WERE SIGNIFICANTLY ENRICHED IN DISEASE RELATED PATHWAYS. IN ADDITION, THE PUTATIVE MRNA-LNCRNA CO-EXPRESSION NETWORK WAS CONSTRUCTED, AND SEVERAL HUB REGULATORY RNAS WERE IDENTIFIED BASED ON THE TRANSCRIPTOME DATA. THIS STUDY FIRSTLY CHARACTERIZED THE CO-EXPRESSION PROFILE OF MRNAS AND LNCRNAS IN MOUSE BRAIN INFECTED WITH T. GONDII AND PROVIDED A FRAMEWORK FOR FURTHER STUDIES OF THE ROLES OF LNCRNAS IN HOST NEUROPATHOLOGY DURING TOXOPLASMOSIS PROGRESSION.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
7  4868 20 OSTEOARTHRITIS RELATED EPIGENETIC VARIATIONS IN MIRNA EXPRESSION AND DNA METHYLATION. OSTEOARTHRITIS (OA) IS CHRONIC ARTHRITIS CHARACTERIZED BY ARTICULAR CARTILAGE DEGRADATION. HOWEVER, A COMPREHENSIVE REGULATORY NETWORK FOR OA-RELATED MICRORNAS AND DNA METHYLATION MODIFICATIONS HAS YET TO BE ESTABLISHED. THUS, WE AIMED TO IDENTIFY EPIGENETIC CHANGES IN MICRORNAS AND DNA METHYLATION AND ESTABLISH THE REGULATORY NETWORK BETWEEN MIRNAS AND DNA METHYLATION. THE MRNA, MIRNA, AND DNA METHYLATION EXPRESSION PROFILES OF HEALTHY OR OSTEOARTHRITIS ARTICULAR CARTILAGE SAMPLES WERE DOWNLOADED FROM GENE EXPRESSION OMNIBUS (GEO) DATABASE, INCLUDING GSE169077, GSE175961, AND GSE162484. THE DIFFERENTIALLY EXPRESSED GENES (DEGS), DIFFERENTIALLY EXPRESSED MIRNAS (DEMS), AND DIFFERENTIALLY METHYLATED GENES (DMGS) WERE ANALYZED BY THE ONLINE TOOL GEO2R. DAVID AND STRING DATABASES WERE APPLIED FOR FUNCTIONAL ENRICHMENT ANALYSIS AND PROTEIN-PROTEIN INTERACTION (PPI) NETWORK. POTENTIAL THERAPEUTIC COMPOUNDS FOR THE TREATMENT OF OA WERE IDENTIFIED BY CONNECTIVITY MAP (CMAP) ANALYSIS. A TOTAL OF 1424 UP-REGULATED DEGS, 1558 DOWN-REGULATED DEGS, 5 DEMS WITH HIGH EXPRESSION, 6 DEMS WITH LOW EXPRESSION, 1436 HYPERMETHYLATED GENES, AND 455 HYPOMETHYLATED GENES WERE SELECTED. A TOTAL OF 136 UP-REGULATED AND 65 DOWNREGULATED GENES WERE IDENTIFIED BY OVERLAPPING DEGS AND DEMS PREDICTED TARGET GENES WHICH WERE ENRICHED IN APOPTOSIS AND CIRCADIAN RHYTHM. A TOTAL OF 39 HYPOMETHYLATED AND 117 HYPERMETHYLATED GENES WERE OBTAINED BY OVERLAPPING DEGS AND DMGS, WHICH WERE ASSOCIATED WITH ECM RECEPTOR INTERACTIONS AND CELLULAR METABOLIC PROCESSES, CELL CONNECTIVITY, AND TRANSCRIPTION. MOREOVER, THE PPI NETWORK SHOWED COL5A1, COL6A1, LAMA4, T3GAL6A, AND TP53 WERE THE MOST CONNECTIVE PROTEINS. AFTER OVERLAPPING OF DEGS, DMGS AND DEMS PREDICTED TARGETED GENES, 4 UP-REGULATED GENES AND 11 DOWN-REGULATED GENES WERE ENRICHED IN THE AXON GUIDANCE PATHWAY. THE TOP TEN GENES RANKED BY PPI NETWORK CONNECTIVITY DEGREE IN THE UP-REGULATED AND DOWNREGULATED OVERLAPPING GENES OF DEGS AND DMGS WERE FURTHER ANALYZED BY THE CMAP DATABASE, AND NINE CHEMICALS WERE PREDICTED AS POTENTIAL DRUGS FOR THE TREATMENT OF OA. IN CONCLUSION, TP53, COL5A1, COL6A1, LAMA4, AND ST3GAL6 MAY PLAY IMPORTANT ROLES IN OA GENESIS AND DEVELOPMENT.	2023	
                                                                                                                                                                                                                                                                                                                                                                      
8  1718 31 DYSREGULATED LONG NON-CODING RNAS IN THE TEMPORAL LOBE EPILEPSY MOUSE MODEL. PURPOSE: TO PERFORM COMPREHENSIVE PROFILING OF LONG NON-CODING RNAS (LNCRNAS) IN TEMPORAL LOBE EPILEPSY. METHODS: WE PERFORMED EXTENSIVE PROFILING OF LNCRNAS AND MRNAS IN THE MOUSE PILOCARPINE MODEL IN SPECIFIC BRAIN REGIONS, THE HIPPOCAMPUS AND CORTEX, AND COMPARED THE RESULTS TO THOSE OF THE CONTROL MOUSE. DIFFERENTIALLY EXPRESSED LNCRNAS AND MRNAS WERE IDENTIFIED WITH A MICROARRAY ANALYSIS (ARRAYSTAR MOUSE LNCRNA EXPRESSION MICROARRAY V3.0). THEN, GENE ONTOLOGY (GO) AND PATHWAY ANALYSIS WERE PERFORMED TO INVESTIGATE THE POTENTIAL ROLES OF THE DIFFERENTIALLY EXPRESSED MRNAS IN THE PILOCARPINE MODEL. PROTEIN-PROTEIN INTERACTIONS TRANSCRIBED BY DYSREGULATED MRNAS WITH/WITHOUT CO-DYSREGULATED LNCRNAS WERE ANALYZED USING STRING V10 (HTTP://STRING-DB.ORG/). RESULTS: A TOTAL OF 22 AND 83 LNCRNAS WERE UP- AND DOWN-REGULATED (>/=2.0-FOLD, ALL P < .05), RESPECTIVELY, IN THE HIPPOCAMPUS OF THE EPILEPSY MODEL, WHILE 46 AND 659 LNCRNAS WERE UP- AND DOWN-REGULATED, RESPECTIVELY, IN THE CORTEX OF THE EPILEPSY MODEL. GO AND PATHWAY ANALYSIS REVEALED THAT THE DYSREGULATED MRNAS WERE CLOSELY ASSOCIATED WITH A PROCESS ALREADY KNOWN TO BE INVOLVED IN EPILEPTOGENESIS: ACUTE INFLAMMATION, CALCIUM ION REGULATION, EXTRACELLULAR MATRIX REMODELING, AND NEURONAL DIFFERENTIATION. AMONG THE LNCRNAS, WE IDENTIFIED 10 LNCRNAS COMMONLY DYSREGULATED WITH CORRESPONDING MRNAS IN THE CORTEX. THE STRING ANALYSIS SHOWED THAT THE DYSREGULATED MRNAS WERE INTERCONNECTED AROUND TWO CENTERS: THE MTOR PATHWAY-RELATED GENES AND REST PATHWAY-RELATED GENES. CONCLUSION: LNCRNAS WERE DYSREGULATED IN THE PILOCARPINE MOUSE MODEL ACCORDING TO THE BRAIN REGIONS OF THE HIPPOCAMPUS AND CORTEX. THE DYSREGULATED LNCRNAS WITH CO-DYSREGULATED MRNAS MIGHT BE POSSIBLE THERAPEUTIC TARGETS FOR THE EPIGENETIC REGULATION OF CHRONIC EPILEPSY.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
9  3065 26 GENOME-WIDE DNA METHYLATION PATTERNS IN CD4+ T CELLS FROM CHINESE HAN PATIENTS WITH RHEUMATOID ARTHRITIS. INTRODUCTION: RHEUMATOID ARTHRITIS (RA) IS AN AUTOIMMUNE DISEASE THAT CAUSES CHRONIC INFLAMMATION OF THE JOINTS. RECENT EVIDENCE INDICATED THE EPIGENETIC CHANGES MAY CONTRIBUTE TO THE PATHOGENESIS OF RA. METHOD: TO UNDERSTAND THE EXTENT AND NATURE OF DYSREGULATED DNA METHYLATION IN RA CD4T CELLS, WE PERFORMED A GENOME-WIDE DNA METHYLATION STUDY IN CD4 + T CELLS IN 12 RA PATIENTS COMPARED TO 12 MATCHED NORMAL HEALTHY CONTROLS. CYTOSINE METHYLATION STATUS WAS QUANTIFIED WITH ILLUMINA METHYLATION 450K MICROARRAY. RESULT: THE DNA METHYLATION PROFILING SHOWED 383 HYPER- AND 785 HYPO-METHYLATED GENES IN THE CD4 + T CELLS OF THE RA PATIENTS (P < 3.4 X 10(-7)). GENE ONTOLOGY ANALYSIS INDICATED TRANSCRIPT ALTERNATIVE SPLICING AND PROTEIN MODIFICATION MEDIATED BY DNA METHYLATION MIGHT PLAY AN IMPORTANT ROLE IN THE PATHOGENESIS OF RA. IN ADDITION, THE RESULT SHOWED THAT HUMAN LEUKOCYTE ANTIGEN (HLA) REGION INCLUDING HLA-DRB6, HLA-DQA1 AND HLA-E WAS FREQUENTLY HYPOMETHYLATED, BUT HLA-DQB1 HYPERMETHYLATED IN CPG ISLAND REGION AND HYPOMETHYLATED IN CPG SHELF REGION IN RA PATIENTS. OUTSIDE THE MHC REGION, HDAC4, NXN, TBCD AND TMEM61 WERE THE MOST HYPERMETHYLATED GENES, WHILE ITIH3, TCN2, PRDM16, SLC1A5 AND GALNT9 ARE THE MOST HYPOMETHYLATED GENES. CONCLUSION: GENOME-WIDE DNA METHYLATION PROFILE REVEALED SIGNIFICANT DNA METHYLATION CHANGE IN CD4 + T CELLS FROM PATIENTS WITH RA.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
10  3501 24 IDENTIFICATION OF POTENTIAL BIOMARKERS FOR SYSTEMIC LUPUS ERYTHEMATOSUS BY INTEGRATED ANALYSIS OF GENE EXPRESSION AND METHYLATION DATA. INTRODUCTION: SYSTEMIC LUPUS ERYTHEMATOSUS (SLE) IS A HETEROGENEOUS AND CHRONIC AUTOIMMUNE DISEASE. ABERRANT DNA METHYLATION OCCURS DURING VARIOUS PROCESSES OF SLE DEVELOPMENT REGULATING THE MRNA EXPRESSION OF INTERRELATED GENES. THIS STUDY AIMS TO SCREEN POTENTIAL DNA METHYLATION MARKERS FOR SLE. METHODS: GENE EXPRESSION AND METHYLATION DATASETS WERE DOWNLOADED FROM THE GENE EXPRESSION OMNIBUS (GEO) DATABASE. DIFFERENTIALLY EXPRESSED GENES (DEGS) BETWEEN SLE PATIENTS AND HEALTHY CONTROLS WERE SCREENED USING THE LIMMA R PACKAGE, AND DIFFERENTIALLY METHYLATED POSITIONS (DMPS) AND REGIONS (DMRS) WERE IDENTIFIED USING DMPFINDER AND BUMPHUNTER (MINFI). ADDITIONALLY, THE DNA METHYLATION MARKERS TO DISTINGUISH SLE PATIENTS FROM HEALTHY CONTROLS WERE EXPLORED THROUGH RECEIVER OPERATING CHARACTERISTIC (ROC) CURVES AND LOGISTIC REGRESSION ANALYSES. FINALLY, WE VALIDATED THE RESULTS OF THE BIOINFORMATIC ANALYSIS BY PYROSEQUENCING. RESULTS: IN TOTAL, 91 DEGS, 90,092 DMPS, 15 DMRS, AND 13 DMR-ASSOCIATED GENES WERE IDENTIFIED. THROUGH THE INTEGRATIVE ANALYSIS OF DEG- AND DMR-ASSOCIATED GENES, WE IDENTIFIED FIVE TYPE I INTERFERON (IFN)-RELATED GENES AS KEY EPIGENETIC-DRIVEN GENES IN SLE. GO ENRICHMENT ANALYSIS SHOWED THAT THE FIVE SLE-ASSOCIATED EPIGENETIC-DRIVEN GENES WERE MAINLY ENRICHED IN THE TYPE I IFN SIGNALING PATHWAY INVOLVED IN IMMUNE RESPONSE AND DEFENSE RESPONSE TO VIRUS. MOREOVER, WE IDENTIFIED TWO SLE-SPECIFIC DNA METHYLATION MARKERS, THREE SLE WITHOUT LUPUS NEPHRITIS (SLE-LN(-))-SPECIFIC DNA METHYLATION MARKERS, AND TWO SLE WITH LUPUS NEPHRITIS (SLE-LN(+))-SPECIFIC DNA METHYLATION MARKERS BY STEPWISE LOGISTIC REGRESSION. CONCLUSIONS: OVERALL, OUR STUDY DEMONSTRATES POTENTIAL DNA METHYLATION MARKERS OF SLE, SLE-LN(-), AND SLE-LN(+), WHICH MAY HELP THE DIAGNOSIS, BOOST THE DEVELOPMENT OF NEW EPIGENETIC THERAPY, AND CONTRIBUTE TO INDIVIDUALIZED TREATMENT. KEY POINTS * THIS STUDY IDENTIFIED FIVE TYPE I IFN-RELATED GENES AS KEY EPIGENETIC-DRIVEN GENES IN SLE, WHICH SUPPORT THE IMPORTANCE OF THE TYPE I IFN PATHWAY IN THE PATHOGENESIS OF SLE * WE IDENTIFIED NOVEL DNA METHYLATION BIOMARKERS IN SLE, SLE-LN-, AND SLE-LN+ BY A COMPREHENSIVE ANALYSIS OF BIOINFORMATICS METHODS AND EXECUTED EXPERIMENTAL VALIDATION, AND BINARY LOGISTIC REGRESSION ANALYSIS SHOWED THAT THEY HAVE EXCELLENT POTENTIAL * THESE RESULTS MAY PROVIDE NEW INSIGHTS INTO THE BIOLOGICAL MECHANISMS OF SLE, AND IDENTIFY RELIABLE BIOMARKERS FOR SLE, SLE-LN-, AND SLE-LN+, WHICH MAY CONTRIBUTE TO DIAGNOSIS AND INDIVIDUALIZED TREATMENT.	2023	

11  1727 29 DYSREGULATION OF LONG NON-CODING RNAS IN MOUSE MODELS OF LOCALIZATION-RELATED EPILEPSY. GENOME-WIDE PROFILING HAS REVEALED THAT EUKARYOTIC GENOMES ARE TRANSCRIBED INTO NUMEROUS NON-CODING RNAS. IN PARTICULAR, LONG NON-CODING RNAS (LNCRNAS) HAVE BEEN IMPLICATED IN VARIOUS HUMAN DISEASES DUE TO THEIR BIOCHEMICAL AND FUNCTIONAL DIVERSITY. EPILEPTIC DISORDERS HAVE BEEN CHARACTERIZED BY DYSREGULATION OF EPIGENETIC REGULATORY MECHANISMS, AND RECENT STUDIES HAVE IDENTIFIED SEVERAL LNCRNAS INVOLVED IN NEURAL DEVELOPMENT AND NETWORK FUNCTION. HOWEVER, COMPREHENSIVE PROFILING OF LNCRNAS IMPLICATED IN CHRONIC EPILEPSY HAS BEEN LACKING. IN THIS STUDY, MICROARRAY ANALYSIS WAS PERFORMED TO OBTAIN THE EXPRESSION PROFILE OF LNCRNAS DYSREGULATED IN PILOCARPINE AND KAINATE MODELS, TWO MODELS OF TEMPORAL LOBE EPILEPSY COMMONLY USED FOR STUDYING EPILEPTIC MECHANISMS. TOTAL OF 4622 LNCRNAS WERE ANALYZED: 384 LNCRNAS WERE SIGNIFICANTLY DYSREGULATED IN PILOCARPINE MODEL, AND 279 LNCRNAS WERE SIGNIFICANTLY DYSREGULATED IN KAINATE MODEL COMPARED WITH CONTROL MICE (>/=3.0-FOLD, P < 0.05). AMONG THESE, 54 AND 14 LNCRNAS, RESPECTIVELY, HAD ADJACENT PROTEIN-CODING GENES WHOSE EXPRESSIONS WERE ALSO SIGNIFICANTLY DYSREGULATED (>/=2.0-FOLD, P < 0.05). MAJORITY OF THESE PAIRS OF LNCRNAS AND ADJACENT GENES SHARED THE SAME DIRECTION OF DYSREGULATION. FOR THE SELECTED ADJACENT GENE-LNCRNA PAIRS, SIGNIFICANT GENE ONTOLOGY TERMS WERE EMBRYONIC APPENDAGE MORPHOGENESIS AND NEURON DIFFERENTIATION. THIS WAS THE FIRST STUDY TO COMPREHENSIVELY IDENTIFY DYSREGULATED LNCRNAS IN TWO DIFFERENT MODELS OF CHRONIC EPILEPSY AND WILL LIKELY PROVIDE A NOVEL INSIGHT INTO DEVELOPING LNCRNA THERAPEUTICS.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
12  3753 24 INTEGRATED ANALYSIS OF GENE EXPRESSION AND METHYLATION DATA TO IDENTIFY POTENTIAL BIOMARKERS RELATED TO ATHEROSCLEROSIS ONSET. ATHEROSCLEROSIS IS A KIND OF CHRONIC INFLAMMATORY CARDIOVASCULAR DISEASE. EPIGENETIC REGULATION PLAYS A CRUCIAL ROLE IN ATHEROSCLEROSIS. OUR STUDY WAS AIMED AT FINDING POTENTIAL BIOMARKERS ASSOCIATED WITH THE OCCURRENCE OF ATHEROSCLEROSIS. TWO DATASETS WERE DOWNLOADED FROM THE GENE EXPRESSION OMNIBUS (GEO) DATABASE. THE EPIGENOME-WIDE ASSOCIATION STUDY (EWAS) ANALYSIS WAS PERFORMED ON METHYLATION DATA USING CPGASSOC PACKAGE. THE DIFFERENTIAL EXPRESSION ANALYSIS WAS CONDUCTED ON MRNA DATA USING LIMMA PACKAGE. THE GO (GENE ONTOLOGY) AND KEGG (KYOTO ENCYCLOPEDIA OF GENES AND GENOMES) FUNCTIONAL ENRICHMENT WAS DONE IN CLUSTERPROFILER PACKAGE. FINALLY, THE LOGISTIC REGRESSION MODEL WAS CONSTRUCTED USING GENERALIZED LINEAR MODEL (GLM) FUNCTION. BETWEEN ATHEROSCLEROTIC VS. NONATHEROSCLEROTIC SAMPLES, TOTALLY 4980 CYTOSINE-PHOSPHATE-GUANINE (CPG) SITES (ANNOTATED TO 2860 GENES) AND 132 DIFFERENTIALLY EXPRESSED GENES (DEGS) RELATED TO ATHEROSCLEROSIS WERE IDENTIFIED. THE ANNOTATED 2860 GENES AND 132 DEGS WERE SIGNIFICANTLY ENRICHED IN 9 AND 4 KEGG PATHWAYS AND 289 AND 132 GO TERMS, RESPECTIVELY. AFTER CROSS-ANALYSIS, 6 CRUCIAL CPG SITES WERE SCREENED TO BUILD THE MODEL, INCLUDING CG01187920, CG03422911, CG08018825, CG10967350, CG14473924, AND CG25313204. THE DIAGNOSTIC MODEL COULD RELIABLY SEPARATE THE ATHEROSCLEROSIS SAMPLES FROM NONATHEROSCLEROTIC SAMPLES. IN CONCLUSION, THE 6 CPG SITES ARE PROBABLY POTENTIAL DIAGNOSTIC BIOMARKERS FOR ATHEROSCLEROSIS, INCLUDING CG01187920, CG03422911, CG08018825, CG10967350, CG14473924, AND CG25313204.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
13  6674 21 USE OF METHYLATION PROFILING TO IDENTIFY SIGNIFICANT DIFFERENTIALLY METHYLATED GENES IN BONE MARROW MESENCHYMAL STROMAL CELLS FROM ACUTE MYELOID LEUKEMIA. THE PRESENT STUDY AIMED TO CHARACTERIZE THE EPIGENETIC ARCHITECTURE BY STUDYING THE DNA METHYLATION SIGNATURE IN BONE MARROW MESENCHYMAL STEM CELLS (BM?MSCS) FROM PATIENTS WITH ACUTE MYELOID LEUKEMIA (AML). MICROARRAY DATASET GSE79695 WAS DOWNLOADED FROM THE GENE EXPRESSION OMNIBUS DATABASE. DIFFERENTIALLY METHYLATED SITES AND DIFFERENTIALLY METHYLATED CPG ISLANDS WERE IDENTIFIED IN BM?MSC SAMPLES FROM PATIENTS WITH AML COMPARED WITH CONTROLS. MICRORNAS (MIRS) ENCODING GENES COVERING DIFFERENTIALLY METHYLATED SITES WERE FOUND AND THE REGULATION NETWORK WAS CONSTRUCTED. PATHWAY ENRICHMENT ANALYSIS OF HYPERMETHYLATED GENES AND HYPOMETHYLATED GENES WAS PERFORMED, FOLLOWED BY PROTEIN?PROTEIN INTERACTION (PPI) NETWORK CONSTRUCTION. MOREOVER, THE IDENTIFIED DIFFERENTIALLY METHYLATED GENES WERE COMPARED WITH THE LEUKEMIA?RELATED MARKER/THERAPEUTIC GENES FROM THE LITERATURE. OVERALL, 228 HYPERMETHYLATED CPG SITE PROBES COVERING 183 GENE SYMBOLS AND 523 HYPOMETHYLATED CPG SITES PROBES COVERING 362 GENE SYMBOLS WERE IDENTIFIED IN THE BM?MSCS FROM AML PATIENTS. FURTHERMORE, 4 GENES WITH CPG ISLAND HYPERMETHYLATION WERE IDENTIFIED, INCLUDING PEPTIDASE M20 DOMAIN CONTAINING 1 (PM20D1). THE HSA?MIR?596?ENCODING GENE MIR596 WAS FOUND TO BE HYPERMETHYLATED AND THE REGULATION NETWORK BASED ON HSA?MIR?596 AND ITS TARGETS (SUCH AS CYTOCHROME P450 FAMILY 1 SUBFAMILY B MEMBER 1) WAS CONSTRUCTED. HYPERMETHYLATED AND HYPOMETHYLATED GENES WERE ENRICHED IN DIFFERENT KYOTO ENCYCLOPEDIA OF GENES AND GENOMES PATHWAYS, INCLUDING 'HSA05221: ACUTE MYELOID LEUKEMIA' AND 'HSA05220: CHRONIC MYELOID LEUKEMIA', WHICH THE HYPOMETHYLATED GENE MITOGEN?ACTIVATED PROTEIN KINASE 3 (MAPK3) WAS INVOLVED IN. IN ADDITION, MAPK3, LYSINE DEMETHYLASE 2B AND RAP1A, MEMBER OF RAS ONCOGENE FAMILY WERE HUBS IN THE PPI NETWORK OF METHYLATED GENES. IN CONCLUSION, PM20D1 WITH HYPERMETHYLATION OF CPG ISLANDS MAY BE ASSOCIATED WITH THE ENERGY EXPENDITURE OF PATIENTS WITH AML. FURTHERMORE, THE ABERRANTLY HYPERMETHYLATED MIR?159?ENCODING GENE MIR159 MAY BE A POTENTIAL BIOMARKER OF AML.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
14  1989 23 EPIGENETIC ANALYSIS IN RHEUMATOID ARTHRITIS SYNOVIOCYTES. RHEUMATOID ARTHRITIS (RA) IS A COMPLEX CHRONIC SYSTEMATIC DISEASE WITH PROGRESSIVE DESTRUCTION OF THE JOINTS BY INVASIVE SYNOVIOCYTES. TO CHARACTERIZE THE KEY REGULATORS INVOLVED IN THE DEVELOPMENT OF RA, WE OBTAINED MULTILAYER EPIGENOMICS DATA INCLUDING DNA METHYLATION BY WHOLE-GENOME BISULFITE SEQUENCING, MIRNA PROFILES, GENETIC VARIATIONS BY WHOLE-EXOME SEQUENCING, AND MRNA PROFILES FROM SYNOVIOCYTES OF RA AND OSTEOARTHRITIS (OA) PATIENTS. THE OVERALL DNA METHYLATION PATTERNS WERE NOT MUCH DIFFERENT BETWEEN RA AND OA, BUT 523 LOW-METHYLATED REGIONS (LMRS) WERE SPECIFIC TO RA. THE LMRS WERE PREFERENTIALLY LOCALIZED AT THE 5' INTRONS AND OVERLAPPED WITH TRANSCRIPTION FACTOR BINDING MOTIFS FOR GLI1, RUNX2, AND TFAP2A/C. SINGLE BASE-SCALE DIFFERENTIALLY METHYLATED CPGS WERE LINKED WITH SEVERAL NETWORKS RELATED TO WOUND RESPONSE, TISSUE DEVELOPMENT, COLLAGEN FIBRIL ORGANIZATION, AND THE TGF-BETA RECEPTOR SIGNALING PATHWAY. FURTHER, THE DNA METHYLATION OF 201 CPGS WAS SIGNIFICANTLY CORRELATED WITH 27 EXPRESSED MIRNA GENES. OUR INTERPRETATION OF EPIGENOMIC DATA OF THE SYNOVIOCYTES FROM RA AND OA PATIENTS IS AN INFORMATIVE RESOURCE TO FURTHER INVESTIGATE REGULATORY ELEMENTS AND BIOMARKERS RESPONSIBLE FOR THE PATHOPHYSIOLOGY OF RA AND OA.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
15  3060 27 GENOME-WIDE DNA METHYLATION ANALYSIS OF MAMMARY GLAND TISSUES FROM CHINESE HOLSTEIN COWS WITH STAPHYLOCOCCUS AUREUS INDUCED MASTITIS. STAPHYLOCOCCUS AUREUS INTRAMAMMARY INFECTION IS ONE OF THE MOST COMMON CAUSES OF CHRONIC MASTITIS IN DAIRY COWS, WHOSE DEVELOPMENT MAY BE ASSOCIATED WITH EPIGENETIC CHANGES IN THE EXPRESSION OF IMPORTANT HOST DEFENSE GENES. THIS STUDY AIMED TO CONSTRUCT A GENOME-WIDE DNA METHYLATION PROFILE OF THE MAMMARY GLAND OF CHINESE HOLSTEIN COWS (N = 3) FOLLOWING EXPERIMENTALLY INDUCED S. AUREUS MASTITIS, AND TO EXPLORE THE POTENTIAL GENE REGULATORY MECHANISMS AFFECTED BY DNA METHYLATION DURING S. AUREUS MASTITIS. DNA WAS EXTRACTED FROM S. AUREUS-POSITIVE (N = 3) AND S. AUREUS-NEGATIVE (N = 3) MAMMARY GLAND QUARTERS AND SUBJECTED TO METHYLATION-DEPENDENT RESTRICTION-SITE ASSOCIATED DNA SEQUENCING (METHYL-RAD SEQ). RESULTS SHOWED THAT C(M)CGG/C(M)CWGG DNA METHYLATION SITES WERE UNEVENLY DISTRIBUTED AND CONCENTRATED ON CHROMOSOMES 5, 11, AND 19, AND WITHIN INTERGENIC REGIONS AND INTRON REGIONS OF GENES. COMPARED WITH HEALTHY CONTROL QUARTERS, 9,181 SIGNIFICANTLY DIFFERENTIALLY METHYLATED (DM) C(M)CGG SITES AND 1,790 DM C(M)CWGG SITES WERE FOUND IN THE S. AUREUS-POSITIVE QUARTERS (P < 0.05, |LOG2FC| > 1). FURTHERMORE, 363 C(M)CGG DIFFERENTLY METHYLATED GENES (DMGS) AND 301 C(M)CWGG DMGS (ADJUSTED P < 0.05, |LOG2FC| > 1) WERE IDENTIFIED. GENE ONTOLOGY AND KEGG ENRICHMENT ANALYSIS INDICATED THAT C(M)CGG DMGS ARE INVOLVED IN IMMUNE RESPONSE PATHWAYS, WHILE THE C(M)CWGG DMGS WERE MAINLY ENRICHED IN GENE ONTOLOGY TERMS RELATED TO METABOLISM. THE MRNAS OF 526 DIFFERENTIALLY METHYLATED C(M)CGG GENES AND 124 DIFFERENTIALLY METHYLATED C(M)CWGG GENES WERE ALSO SIGNIFICANTLY DIFFERENTIALLY EXPRESSED (RNA-SEQ DATA) IN THE SAME SAMPLES, HEREIN DENOTED DIFFERENTIALLY METHYLATED AND EXPRESSED GENES (DMEGS) (P < 0.05). FUNCTIONAL ENRICHMENT ANALYSIS OF DMEGS REVEALED ROLES RELATED TO BIOLOGICAL PROCESSES, ESPECIALLY THE REGULATION OF IMMUNE RESPONSE TO DISEASES. C(M)CGG DMEGS LIKE IL6R, TNF, BTK, IL1R2, AND TNFSF8 ENRICHED IN SEVERAL IMMUNE-RELATED GO TERMS AND PATHWAYS INDICATED THEIR IMPORTANT ROLES IN HOST IMMUNE RESPONSE AND THEIR POTENTIAL AS CANDIDATE GENES FOR S. AUREUS MASTITIS. THESE RESULTS SUGGEST POTENTIAL REGULATORY ROLES FOR DNA METHYLATION IN BOVINE MAMMARY GLAND PROCESSES DURING S. AUREUS MASTITIS AND SERVES AS A REFERENCE FOR FUTURE EPIGENETIC REGULATION AND MECHANISTIC STUDIES.	2020	
                                                                                                                                                                                                                                 
16   411 25 ANALYSIS OF GENOME-WIDE DNA METHYLATION PATTERNS IN OBESITY. OBESITY IS A CHRONIC AND COMPLEX PSYCHOSOMATIC DISEASE THAT IS BECOMING INCREASINGLY PREVALENT WORLDWIDE. THIS STUDY AIMED TO ANALYZE WHOLE METHYLATION PROFILES TO UNCOVER THE EPIGENETIC MECHANISMS ASSOCIATED WITH OBESITY. DNA METHYLATION PROFILES IN BLOOD SAMPLES FROM PATIENTS WITH OBESITY AND NORMAL CONTROLS WERE STUDIED USING THE ILLUMINA 850 K METHYLATION MICROARRAY. THE DIAGNOSTIC VALUE OF THE DIFFERENTIALLY METHYLATED GENES WAS DETERMINED USING RECEIVER OPERATING CHARACTERISTIC (ROC) ANALYSIS. THE EXPRESSION OF SELECTED CANDIDATE GENES WAS VERIFIED USING REVERSE TRANSCRIPTION QUANTITATIVE POLYMERASE CHAIN REACTION (RT-QPCR) AND PYROSEQUENCING. A TOTAL OF 9,371 SIGNIFICANTLY DIFFERENTIALLY METHYLATED SITES (7,974 HYPERMETHYLATED SITES AND 1,397 HYPOMETHYLATED SITES) WERE IDENTIFIED IN 4,571 GENES. A DIFFERENCE IN THE DISTRIBUTION OF DIFFERENTIALLY METHYLATED SITES (HYPERMETHYLATED AND HYPOMETHYLATED) IN BOTH GENE STRUCTURES AND CPG ISLANDS WAS OBSERVED. A TOTAL OF 114 KEY DIFFERENTIALLY METHYLATED SITES WERE IDENTIFIED IN THE CPG ISLANDS. ROC RESULTS INDICATED THAT INHIBIN SUBUNIT BETA B (INHBB), HOMEOBOX A9 (HOXA9), TROPONIN T3 (TNNT3), CYCLIC ADENOSINE MONOPHOSPHATE (CAMP)-RESPONSIVE ELEMENT BINDING PROTEIN (CREB)-REGULATED TRANSCRIPTION COACTIVATOR 1 (CRTC1) AND ZINC FINGER AND BTB DOMAIN-CONTAINING 7 B (ZBTB7B) COULD DISCRIMINATE PATIENTS WITH OBESITY FROM NORMAL CONTROLS. RT-QPCR RESULTS OF CRTC1 AND ZBTB7B WERE CONSISTENT WITH OUR METHYLATION PROFILE RESULTS. THE PYROSEQUENCING RESULTS SHOWED THAT THE METHYLATION LEVELS OF CRTC1 CPG SITES (CPG1 AND CPG2-CG11660071) AND INHBB CPG SITES (CPG2) WERE SIGNIFICANTLY CHANGED IN PATIENTS WITH OBESITY COMPARED WITH NORMAL CONTROLS, WHICH WAS CONSISTENT WITH OUR DNA METHYLATION PROFILE RESULTS. OUR STUDY PROVIDES NEW INSIGHTS INTO THE PATHOLOGICAL MECHANISM OF OBESITY.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
17  6410 26 THE SIGNATURE OF HBV-RELATED LIVER DISEASE IN PERIPHERAL BLOOD MONONUCLEAR CELL DNA METHYLATION. BACKGROUND: HEPATITIS B VIRUS (HBV)-RELATED LIVER DISEASE INDUCES LIVER DAMAGE BY HEPATIC IMMUNE AND INFLAMMATORY RESPONSE. THE ASSOCIATION BETWEEN ABERRANT PERIPHERAL BLOOD MONONUCLEAR CELL (PBMC) DNA METHYLATION AND PROGRESSION OF LIVER DISEASE AND FIBROSIS REMAINS UNCLEAR. RESULTS: HERE WE APPLIED INFINIUM 450 K BEADCHIP INVESTIGATING PBMC GENOME-WIDE METHYLATION PROFILING OF 48 HBV-RELATED LIVER DISEASE PATIENTS INCLUDING 24 CHRONIC HEPATITIS B (CHB), 14 COMPENSATED LIVER CIRRHOSIS (LC), AND 10 DECOMPENSATED LIVER CIRRHOSIS (DLC). IN TOTAL, THERE WERE 7888 DIFFERENTIALLY METHYLATED CPG SITES (36.06% HYPERMETHYLATION, 63.94% HYPOMETHYLATION) CORRELATE WITH LIVER DISEASE PROGRESSION. LC WAS DIFFICULT TO BE DIAGNOSED, INTERMEDIATING BETWEEN CHB AND DLC. WE USED LEAST ABSOLUTE SHRINKAGE AND SELECTION OPERATOR (LASSO)-LOGISTIC REGRESSION METHOD TO PERFORM A LC PREDICTIVE MODEL. THE PREDICTED PROBABILITY (P) OF HAVING LC WAS ESTIMATED BY THE COMBINED MODEL: P = 1/(1 - E(-X)), WHERE X = 11.52 - 2.82 X (IF AST WITHIN THE NORMAL RANGE - 0.19 X (PERCENT METHYLATION OF CG05650055) - 0.21 X (PERCENT METHYLATION OF CG17149911 ). PYROSEQUENCING VALIDATION AND CONFUSION MATRIX ANALYSIS WAS USED FOR INTERNAL TESTING, AREA UNDER RECEIVER OPERATING CHARACTERISTIC CURVE (AUROC) OF MODEL WAS 0.917 (95% CI, 0.80-0.977). ON THE FIBROSIS PROGRESS, THERE WERE 1705 GENES IN LC COMPARED WITH CHB, WHOSE DIFFERENTIALLY METHYLATED CPG SITES LOADING WITHIN THE "PROMOTER" REGIONS (INCLUDING TSS1500, TSS200, 5'UTR, AND THE 1ST EXON OF GENES) SUBJECT INTO THE ENRICHMENT ANALYSIS USING INGENUITY PATHWAY ANALYSIS (IPA). THERE WERE 113 ENRICHED IMMUNE-RELATED PATHWAYS INDICATED THAT HBV-RELATED LIVER FIBROSIS PROGRESSION CAUSED EPIGENETIC REPROGRAMMING OF THE IMMUNE AND INFLAMMATORY RESPONSE. CONCLUSIONS: THESE DATA SUPPORT IDEA THAT DEVELOPMENT OF HBV-RELATED CHRONIC LIVER DISEASE IS LINKED WITH ROBUST AND BROAD ALTERATION OF METHYLATION IN PERIPHERAL IMMUNE SYSTEM. CPG METHYLATION SITES SERVE AS RELEVANT BIOMARKER CANDIDATES TO MONITOR AND DIAGNOSE LC, PROVIDING NEW INSIGHT INTO THE IMMUNE MECHANISMS UNDERSTANDING THE PROGRESSION OF HBV-RELATED LIVER FIBROSIS AND CIRRHOSIS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                   
18  3235 26 HEMIN AVAILABILITY INDUCES COORDINATED DNA METHYLATION AND GENE EXPRESSION CHANGES IN PORPHYROMONAS GINGIVALIS. PERIODONTAL DISEASE IS A CHRONIC INFLAMMATORY DISEASE IN WHICH THE ORAL PATHOGEN PORPHYROMONAS GINGIVALIS PLAYS AN IMPORTANT ROLE. PORPHYROMONAS GINGIVALIS EXPRESSES VIRULENCE DETERMINANTS IN RESPONSE TO HIGHER HEMIN CONCENTRATIONS, BUT THE UNDERLYING REGULATORY PROCESSES REMAIN UNCLEAR. BACTERIAL DNA METHYLATION HAS THE POTENTIAL TO FULFIL THIS MECHANISTIC ROLE. WE CHARACTERIZED THE METHYLOME OF P. GINGIVALIS, AND COMPARED ITS VARIATION TO TRANSCRIPTOME CHANGES IN RESPONSE TO HEMIN AVAILABILITY. PORPHYROMONAS GINGIVALIS W50 WAS GROWN IN CHEMOSTAT CONTINUOUS CULTURE WITH EXCESS OR LIMITED HEMIN, PRIOR TO WHOLE-METHYLOME AND TRANSCRIPTOME PROFILING USING NANOPORE AND ILLUMINA RNA-SEQ. DNA METHYLATION WAS QUANTIFIED FOR DAM/DCM MOTIFS AND ALL-CONTEXT N6-METHYLADENINE (6MA) AND 5-METHYLCYTOSINE (5MC). OF ALL 1,992 GENES ANALYZED, 161 AND 268 WERE RESPECTIVELY OVER- AND UNDER-EXPRESSED WITH EXCESS HEMIN. NOTABLY, WE DETECTED DIFFERENTIAL DNA METHYLATION SIGNATURES FOR THE DAM "GATC" MOTIF AND BOTH ALL-CONTEXT 6MA AND 5MC IN RESPONSE TO HEMIN AVAILABILITY. JOINT ANALYSES IDENTIFIED A SUBSET OF COORDINATED CHANGES IN GENE EXPRESSION, 6MA, AND 5MC METHYLATION THAT TARGET GENES INVOLVED IN LACTATE UTILIZATION AND ABC TRANSPORTERS. THE RESULTS IDENTIFY ALTERED METHYLATION AND EXPRESSION RESPONSES TO HEMIN AVAILABILITY IN P. GINGIVALIS, WITH INSIGHTS INTO MECHANISMS REGULATING ITS VIRULENCE IN PERIODONTAL DISEASE. IMPORTANCE DNA METHYLATION HAS IMPORTANT ROLES IN BACTERIA, INCLUDING IN THE REGULATION OF TRANSCRIPTION. PORPHYROMONAS GINGIVALIS, AN ORAL PATHOGEN IN PERIODONTITIS, EXHIBITS WELL-ESTABLISHED GENE EXPRESSION CHANGES IN RESPONSE TO HEMIN AVAILABILITY. HOWEVER, THE REGULATORY PROCESSES UNDERLYING THESE EFFECTS REMAIN UNKNOWN. WE PROFILED THE NOVEL P. GINGIVALIS EPIGENOME, AND ASSESSED EPIGENETIC AND TRANSCRIPTOME VARIATION UNDER LIMITED AND EXCESS HEMIN CONDITIONS. AS EXPECTED, MULTIPLE GENE EXPRESSION CHANGES WERE DETECTED IN RESPONSE TO LIMITED AND EXCESS HEMIN THAT REFLECT HEALTH AND DISEASE, RESPECTIVELY. NOTABLY, WE ALSO DETECTED DIFFERENTIAL DNA METHYLATION SIGNATURES FOR THE DAM "GATC" MOTIF AND BOTH ALL-CONTEXT 6MA AND 5MC IN RESPONSE TO HEMIN. JOINT ANALYSES IDENTIFIED COORDINATED CHANGES IN GENE EXPRESSION, 6MA, AND 5MC METHYLATION THAT TARGET GENES INVOLVED IN LACTATE UTILIZATION AND ABC TRANSPORTERS. THE RESULTS IDENTIFY NOVEL REGULATORY PROCESSES UNDERLYING THE MECHANISM OF HEMIN REGULATED GENE EXPRESSION IN P. GINGIVALIS, WITH PHENOTYPIC IMPACTS ON ITS VIRULENCE IN PERIODONTAL DISEASE.	2023	
           
19  1499 19 DNA METHYLATION ANALYSIS IN NONALCOHOLIC FATTY LIVER DISEASE SUGGESTS DISTINCT DISEASE-SPECIFIC AND REMODELING SIGNATURES AFTER BARIATRIC SURGERY. NONALCOHOLIC FATTY LIVER DISEASE (NAFLD) IS THE MOST COMMON CHRONIC LIVER DISORDER IN INDUSTRIALIZED COUNTRIES. LIVER SAMPLES FROM MORBIDLY OBESE PATIENTS (N = 45) WITH ALL STAGES OF NAFLD AND CONTROLS (N = 18) WERE ANALYZED BY ARRAY-BASED DNA METHYLATION AND MRNA EXPRESSION PROFILING. NAFLD-SPECIFIC EXPRESSION AND METHYLATION DIFFERENCES WERE SEEN FOR NINE GENES CODING FOR KEY ENZYMES IN INTERMEDIATE METABOLISM (INCLUDING PC, ACLY, AND PLCG1) AND INSULIN/INSULIN-LIKE SIGNALING (INCLUDING IGF1, IGFBP2, AND PRKCE) AND REPLICATED BY BISULFITE PYROSEQUENING (INDEPENDENT N = 39). TRANSCRIPTION FACTOR BINDING SITES AT NAFLD-SPECIFIC CPG SITES WERE >1,000-FOLD ENRICHED FOR ZNF274, PGC1A, AND SREBP2. INTRAINDIVIDUAL COMPARISON OF LIVER BIOPSIES BEFORE AND AFTER BARIATRIC SURGERY SHOWED NAFLD-ASSOCIATED METHYLATION CHANGES TO BE PARTIALLY REVERSIBLE. POSTBARIATRIC AND NAFLD-SPECIFIC METHYLATION SIGNATURES WERE CLEARLY DISTINCT BOTH IN GENE ONTOLOGY AND TRANSCRIPTION FACTOR BINDING SITE ANALYSES, WITH >400-FOLD ENRICHMENT OF NRF1, HSF1, AND ESRRA SITES. OUR FINDINGS PROVIDE AN EXAMPLE OF TREATMENT-INDUCED EPIGENETIC ORGAN REMODELING IN HUMANS.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
20  5862 27 SUPERTAG METHYLATION-SPECIFIC DIGITAL KARYOTYPING REVEALS UREMIA-INDUCED EPIGENETIC DYSREGULATION OF ATHEROSCLEROSIS-RELATED GENES. BACKGROUND: ACCELERATED ATHEROSCLEROSIS IS A HALLMARK OF CHRONIC KIDNEY DISEASE (CKD). ALTHOUGH THE ROLE OF EPIGENETIC DYSREGULATION IN ATHEROSCLEROSIS IS INCREASINGLY APPRECIATED, ONLY A FEW STUDIES FOCUSED ON EPIGENETICS IN CKD-ASSOCIATED CARDIOVASCULAR DISEASE, VIRTUALLY ALL OF WHICH ASSESSED EPIGENETIC DYSREGULATION GLOBALLY. WE HYPOTHESIZED THAT GENE-SPECIFIC EPIGENETIC DYSREGULATION IN CKD EXISTS, AFFECTING GENES PERTINENT TO INFLAMMATION AND ATHEROSCLEROSIS. METHODS AND RESULTS: TEN CLINICALLY STABLE PATIENTS UNDERGOING HEMODIALYSIS THERAPY AND 10 HEALTHY AGE- AND SEX-MATCHED CONTROLS WERE RECRUITED. GENOME-WIDE ANALYSIS OF DNA METHYLATION WAS PERFORMED BY SUPERTAG METHYLATION-SPECIFIC DIGITAL KARYOTYPING, IN ORDER TO IDENTIFY GENES DIFFERENTIALLY METHYLATED IN CKD. ANALYSIS OF 27 043 436 TAGS REVEALED 4288 GENOMIC LOCI WITH DIFFERENTIAL DNA METHYLATION (P<10(-10)) BETWEEN HEMODIALYSIS PATIENTS AND CONTROL SUBJECTS. ANNOTATION OF UNITAGS TO PROMOTER DATABASES ALLOWED US TO IDENTIFY 52 CANDIDATE GENES ASSOCIATED WITH CARDIOVASCULAR DISEASE AND 97 CANDIDATE GENES ASSOCIATED WITH IMMUNE/INFECTION DISEASES. THESE CANDIDATE GENES COULD BE CLASSIFIED TO DISTINCT PROATHEROGENIC PROCESSES, INCLUDING LIPID METABOLISM AND TRANSPORT (EG, HMGCR, SREBF1, LRP5, EPHX2, AND FDPS), CELL PROLIFERATION AND CELL-CYCLE REGULATION (EG, MIK67, TP53, AND ALOX12), ANGIOGENESIS (EG, ANGPT2, ADAMTS10, AND FLT4), AND INFLAMMATION (EG, TNFSF10, LY96, IFNGR1, HSPA1A, AND IL12RB1). CONCLUSIONS: WE PROVIDE A COMPREHENSIVE ANALYSIS OF GENOME-WIDE EPIGENETIC ALTERATIONS IN CKD, IDENTIFYING CANDIDATE GENES ASSOCIATED WITH PROATHEROGENIC AND INFLAMMATORY PROCESSES. THESE RESULTS MAY SPUR FURTHER RESEARCH IN THE FIELD OF EPIGENETICS IN KIDNEY DISEASE AND POINT TO NEW THERAPEUTIC STRATEGIES IN CKD-ASSOCIATED ATHEROSCLEROTIC DISEASE.	2012