1  5094 138 PLASMA EXTRACELLULAR VESICLE SUBTYPES MAY BE USEFUL AS POTENTIAL BIOMARKERS OF IMMUNE ACTIVATION IN PEOPLE WITH HIV. BACKGROUND: EXTRACELLULAR VESICLES (EVS) ARE INTERCELLULAR MESSENGERS WITH EPIGENETIC POTENTIAL SINCE THEY CAN SHUTTLE MICRORNA (MIRNA). EVS AND MIRNA PLAY A ROLE IN HUMAN IMMUNODEFICIENCY VIRUS (HIV) INFECTION IMMUNOPATHOGENESIS. CHRONIC IMMUNE ACTIVATION AND SYSTEMIC INFLAMMATION DURING HIV INFECTION DESPITE EFFECTIVE ANTIRETROVIRAL THERAPY (ART) ARE ASSOCIATED WITH NON-ACQUIRED IMMUNODEFICIENCY SYNDROME (AIDS) COMORBIDITIES IN PEOPLE LIVING WITH HIV (PLWH). ANALYSIS OF PLASMA EVS AND THEIR MIRNA CONTENT MAY BE USEFUL AS IMMUNE ACTIVATION OR INFLAMMATORY BIOMARKERS IN PLWH RECEIVING ART. IN THIS STUDY, WE HYPOTHESIZED THAT THE NUMBER, SIZE, AND MIRNA OF LARGE AND SMALL EVS COULD REFLECT IMMUNE ACTIVATION ASSOCIATED WITH AN ELEVATED CD8 T-CELL COUNT OR A LOW CD4/CD8 RATIO IN PLWH. METHODS: PLASMA EVS SUBTYPE PURIFIED FROM PLWH AND UNINFECTED CONTROLS WERE SIZED USING DYNAMIC LIGHT SCATTERING AND QUANTIFIED USING FLOW CYTOMETRY AND ACETYLCHOLINE ESTERASE (ACHE) ACTIVITY. EXPRESSION OF MATURE MIRNAS MIR-92, MIR-155, MIR-223 WAS MEASURED BY QUANTITATIVE REVERSE-TRANSCRIPTASE POLYMERASE CHAIN REACTION IN EVS AND LEUCOCYTES. RESULTS: HIV INFECTION INDUCES INCREASED PRODUCTION OF SMALL EVS IN PLASMA. EV SUBTYPES WERE DIFFERENTIALLY ENRICHED IN MIR-92, MIR-155, AND MIR-223. POSITIVE CORRELATIONS BETWEEN CD8 T-CELL COUNT AND LARGE EVS ABUNDANCE AND SMALL EVS ACHE ACTIVITY WERE OBSERVED. CD4/CD8 RATIO WAS NEGATIVELY CORRELATED WITH SMALL EV ACHE ACTIVITY, AND MIRNA-155 LEVEL PER SMALL EV WAS NEGATIVELY CORRELATED WITH CD8 T-CELL COUNT. CONCLUSIONS: THESE FINDINGS SUGGEST THAT QUANTIFYING LARGE OR SMALL EVS AND PROFILING MIRNA CONTENT PER EV MIGHT PROVIDE NEW FUNCTIONAL BIOMARKERS OF IMMUNE ACTIVATION AND INFLAMMATION.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
2  4054  21 MAPK IS A MUTUAL PATHWAY TARGETED BY ANXIETY-RELATED MIRNAS, AND E2F5 IS A PUTATIVE TARGET FOR ANXIOLYTIC MIRNAS. ANXIETY-RELATED DISORDERS (ARDS) ARE CHRONIC NEUROPSYCHOLOGICAL DISEASES AND THE SIXTH LEADING CAUSE OF DISABILITY IN THE WORLD. AS DYSREGULATION OF MICRORNAS (MIRS) ARE OBSERVED IN THE PATHOLOGICAL COURSE OF NEUROPSYCHIATRIC DISORDERS, THE PRESENT STUDY AIMED TO INTRODUCE MIRS THAT UNDERLIE ANXIETY PROCESSING IN THE BRAIN. FIRST, WE COLLECTED THE EXPERIMENTALLY CONFIRMED ANXIETY-RELATED MIRNAS (ARMIRS), PREDICTED THEIR TARGET TRANSCRIPTS, AND INTRODUCED CRITICAL CELLULAR PATHWAYS WITH KEY COMMUNE HUB GENES. AS A RESULT, WE HAVE FOUND NINE ANXIOLYTIC AND TEN ANXIOGENIC ARMIRS. THE ANXIOLYTIC MIRS FREQUENTLY TARGET THE MRNA OF ACYL-COA SYNTHETASE LONG-CHAIN FAMILY MEMBER 4 (ACSL4), AFF4-AF4/FMR2 FAMILY MEMBER 4 (AFF4), AND KRUPPEL LIKE TRANSCRIPTION FACTOR 4 (KLF4) GENES, WHERE MIR-34B-5P AND MIR-34C-5P INTERACT WITH ALL OF THEM. MOREOVER, THE ANXIOGENIC MIRS FREQUENTLY TARGET THE MRNA OF NINE GENES; AMONG THEM, ONLY TWO MIR (MIR-142-5P AND MIR-218-5P) HAVE NO INTERACTION WITH THE MRNA OF TRINUCLEOTIDE REPEAT-CONTAINING ADAPTOR 6B (TNRC6B), AND MIR-124-3P INTERACTS WITH ALL OF THEM WHERE MAPK IS THE MAIN SIGNALING PATHWAY AFFECTED BY BOTH ANXIOLYTIC AND ANXIOGENIC MIR. IN ADDITION, THE ANXIOLYTIC MIR COMMONLY TARGET E2F TRANSCRIPTION FACTOR 5 (E2F5) IN THE TGF-BETA SIGNALING PATHWAY, AND THE ANXIOGENIC MIR COMMONLY TARGET ATAXIN 1 (ATXN1), WASP-LIKE ACTIN NUCLEATION PROMOTING FACTOR (WASL), AND SOLUTE CARRIER FAMILY 17 MEMBER 6 (SLC17A6) GENES IN THE NOTCH SIGNALING, ADHERENCE JUNCTION, AND SYNAPTIC VESICLE CYCLE PATHWAYS, RESPECTIVELY. TAKEN TOGETHER, WE CONCLUDE THAT THE MOST IMPORTANT ANXIOLYTIC (MIR-34C, LET-7D, AND MIR-17) AND ANXIOGENIC (MIR-19B, MIR-92A, AND 218) MIR, AS HUB EPIGENETIC MODULATORS, POTENTIALLY INFLUENCE THE PATHOPHYSIOLOGY OF ANXIETY, PRIMARILY VIA INTERACTION WITH THE MAPK SIGNALING PATHWAY. MOREOVER, THE ROLE OF E2F5 AS A NOVEL PUTATIVE TARGET FOR ANXIOLYTIC MIRNAS IN ARDS DISORDERS DESERVES FURTHER EXPLORATION.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                   
3   899  28 CHRONIC EXPOSURE TO A LOW CONCENTRATION OF BISPHENOL A DURING FOLLICLE CULTURE AFFECTS THE EPIGENETIC STATUS OF GERMINAL VESICLES AND METAPHASE II OOCYTES. OBJECTIVE: TO DETERMINE WHETHER EXPOSURE TO LOW CONCENTRATIONS OF THE ENDOCRINE DISRUPTING CHEMICAL BISPHENOL A (BPA) DURING FOLLICLE CULTURE AND OOCYTE GROWTH ALTERS THE METHYLATION STATUS OF DIFFERENTIALLY METHYLATED REGIONS (DMRS) OF IMPRINTED GENES AND HISTONE POSTTRANSLATIONAL MODIFICATION PATTERNS IN MAMMALIAN OOCYTES. DESIGN: COMPARATIVE AND CONTROL STUDY. SETTING: EXPERIMENTAL LABORATORY. ANIMAL(S): C57/BL6JXCBA/CA MICE. INTERVENTION(S): EXPOSURE OF OOCYTES TO 3 NM OR 300 NM BPA DURING FOLLICLE CULTURE FROM PREANTRAL TO ANTRAL STAGE. MAIN OUTCOME MEASURE(S): METHYLATION STATUS OF DMRS OF MATERNALLY IMPRINTED (SNRPN, IGF2R, AND MEST) AND PATERNALLY IMPRINTED GENE(S) (H19) IN MOUSE GERMINAL VESICLE OOCYTES; TRIMETHYLATION OF HISTONE H3K9, ACETYLATION OF HISTONE H4K12, AND DISTANCE BETWEEN CENTROMERES OF SISTER CHROMATIDS IN METAPHASE II OOCYTES. RESULT(S): EXPOSURE TO 3 NM BPA WAS ASSOCIATED WITH SLIGHTLY ACCELERATED FOLLICLE DEVELOPMENT, STATISTICALLY SIGNIFICANT INCREASES IN ALLELE METHYLATION ERRORS IN DMRS OF MATERNALLY IMPRINTED GENES, AND STATISTICALLY SIGNIFICANT DECREASES IN HISTONE H3K9 TRIMETHYLATION AND INTERKINETOCHORE DISTANCE. CONCLUSION(S): THE DISTURBANCES IN OOCYTE GENOMIC IMPRINTING AND MODIFICATION OF POSTTRANSLATIONAL HISTONE AND CENTROMERE ARCHITECTURE PROVIDE THE FIRST LINK BETWEEN LOW BPA EXPOSURES AND INDUCTION OF EPIGENETIC CHANGES THAT MAY CONTRIBUTE TO CHROMOSOME CONGRESSION FAILURES AND MEIOTIC ERRORS, AND TO ALTERED GENE EXPRESSION THAT MIGHT AFFECT HEALTH OF THE OFFSPRING.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
4  1096  31 COINCUBATION OF SPERM WITH EPIDIDYMAL EXTRACELLULAR VESICLE PREPARATIONS FROM CHRONIC INTERMITTENT ETHANOL-TREATED MICE IS SUFFICIENT TO IMPART ANXIETY-LIKE AND ETHANOL-INDUCED BEHAVIORS TO ADULT PROGENY. WE PREVIOUSLY REPORTED THAT PATERNAL PRECONCEPTION CHRONIC ETHANOL EXPOSURE IN MICE IMPARTS ADULT MALE OFFSPRING WITH REDUCED ETHANOL DRINKING PREFERENCE AND CONSUMPTION, INCREASED ETHANOL SENSITIVITY, AND ATTENUATED STRESS RESPONSIVITY. THAT SAME CHRONIC ETHANOL EXPOSURE PARADIGM WAS LATER REVEALED TO AFFECT THE SPERM EPIGENOME BY ALTERING THE ABUNDANCE OF SEVERAL SMALL NONCODING RNAS, A MECHANISM THAT MEDIATES THE INTERGENERATIONAL EFFECTS OF NUMEROUS PATERNAL ENVIRONMENTAL EXPOSURES. ALTHOUGH RECENT STUDIES HAVE REVEALED THAT THE UNIQUE RNA SIGNATURE OF SPERM IS SHAPED DURING MATURATION IN THE EPIDIDYMIS VIA EXTRACELLULAR VESICLES (EVS), FORMAL DEMONSTRATION THAT EVS MEDIATE THE EFFECTS OF PATERNAL PRECONCEPTION PERTURBATIONS IS LACKING. THEREFORE, IN THE CURRENT STUDY WE TESTED THE HYPOTHESIS THAT EPIDIDYMAL EV PREPARATIONS ARE SUFFICIENT TO INDUCE INTERGENERATIONAL EFFECTS OF PATERNAL PRECONCEPTION ETHANOL EXPOSURE ON OFFSPRING. TO TEST THIS HYPOTHESIS, SPERM FROM ETHANOL-NAIVE DONORS WERE INCUBATED WITH EPIDIDYMAL EV PREPARATIONS FROM CHRONIC ETHANOL (ETHANOL EV-DONOR) OR CONTROL-TREATED (CONTROL EV-DONOR) MICE PRIOR TO IN VITRO FERTILIZATION (IVF) AND EMBRYO TRANSFER. PROGENY WERE EXAMINED FOR ETHANOL- AND STRESS-RELATED BEHAVIORS IN ADULTHOOD. ETHANOL EV-DONORS IMPARTED REDUCED BODY WEIGHT AT WEANING AND IMPARTED MODESTLY INCREASED LIMITED ACCESS ETHANOL INTAKE TO MALE OFFSPRING. ETHANOL-EV DONORS ALSO IMPARTED INCREASED BASAL ANXIETY-LIKE BEHAVIOR AND REDUCED SENSITIVITY TO ETHANOL-INDUCED ANXIOLYSIS TO FEMALE OFFSPRING. ALTHOUGH ETHANOL EV-DONOR TREATMENT DID NOT RECAPITULATE THE ETHANOL- OR STRESS-RELATED INTERGENERATIONAL EFFECTS OF PATERNAL ETHANOL FOLLOWING NATURAL MATING, THESE RESULTS DEMONSTRATE THAT COINCUBATION OF SPERM WITH EPIDIDYMAL EV PREPARATIONS IS SUFFICIENT TO IMPART INTERGENERATIONAL EFFECTS OF ETHANOL THROUGH THE MALE GERMLINE. THIS MECHANISM MAY GENERALIZE TO THE INTERGENERATIONAL EFFECTS OF A WIDE VARIETY OF PATERNAL PRECONCEPTION PERTURBATIONS.	2020	
                                                                                                                                                                                                                                                               
5  3726  31 INHIBITION OF HISTONE METHYLTRANSFERASE EZH2 SUPPRESSES ENDOMETRIOTIC VESICLE DEVELOPMENT IN A RAT MODEL OF ENDOMETRIOSIS. ENDOMETRIOSIS IS A PAINFUL GYNECOLOGICAL DISEASE WITH NO CURE AND LIMITED THERAPEUTIC OPTIONS. IT HAS BEEN HYPOTHESIZED THAT EPIGENETIC DRUGS CAN BE USED AS A NONHORMONAL TREATMENT FOR ENDOMETRIOSIS. THIS STUDY WAS CONDUCTED TO STUDY THE EFFICACY OF AN INHIBITOR OF THE HISTONE METHYLTRANSFERASE EZH2 USING AN ESTABLISHED RAT MODEL OF ENDOMETRIOSIS. WE HYPOTHESIZED THAT TREATMENT WILL BLOCK OR REDUCE THE NUMBER OF ENDOMETRIOTIC VESICLES IN THIS MODEL. WE CONDUCTED A PRECLINICAL DRUG STUDY IN FEMALE RATS WITH EXPERIMENTAL ENDOMETRIOSIS (UTERINE TISSUE TRANSPLANTED NEXT TO THE INTESTINAL MESENTERY) OR CONTROL SHAM (SUTURES ONLY). RATS WITH ENDOMETRIOSIS OR SHAM SURGERY RECEIVED EITHER TREATMENT WITH EZH2 INHIBITOR (5 MG/KG OR 10 MG/KG) OR VEHICLE (0.1%, 67% DMSO) EVERY OTHER DAY DURING 4 WEEKS. AFTER TREATMENT COMPLETION, THE NUMBER, AREA, VOLUME, AND WEIGHT OF VESICLES WERE EVALUATED. RT [2] PROFILER ARRAYS FOR NEUROPATHIC AND INFLAMMATION, EPITHELIAL TO MESENCHYMAL TRANSITION, INFLAMMATORY RESPONSE, AND AUTOIMMUNITY PATHWAYS WERE USED TO EXAMINE GENE EXPRESSION CHANGES IN THE VESICLES THAT DEVELOPED. TREATMENT WITH EZH2 INHIBITOR (10 MG/KG) SUPPRESSED THE DEVELOPMENT OF VESICLES, BY SIGNIFICANTLY DECREASING THE TOTAL VESICLE NUMBER, AREA, VOLUME, AND WEIGHT. IN ADDITION, EZH2 INHIBITION SIGNIFICANTLY INCREASED THE EXPRESSION OF CACNA1B AND FKBP1A GENES, INVOLVED IN PAIN AND PROLIFERATION, RESPECTIVELY. EZH2 INHIBITION SUPPRESSES THE GROWTH OF VESICLES WITHOUT APPARENT DETRIMENTAL EFFECTS TO OTHER ORGANS. TREATMENT WITH THIS EPIGENETIC INHIBITOR LEADS TO UPREGULATION OF A LIMITED NUMBER OF GENES RELATED TO ENDOMETRIOSIS-RELEVANT PATHWAYS. IN CONCLUSION, THESE DATA SUPPORT FOLLOW-UP STUDIES TO EVALUATE ITS POTENTIAL AS A THERAPEUTIC APPROACH FOR ENDOMETRIOSIS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
6  4348  44 MIR-146A DYSREGULATES ENERGY METABOLISM DURING NEUROINFLAMMATION. ALZHEIMER'S DISEASE (AD) AND OTHER NEURODEGENERATIVE DISEASES ARE CHARACTERIZED BY CHRONIC NEUROINFLAMMATION AND A REDUCTION IN BRAIN ENERGY METABOLISM. AN IMPORTANT ROLE HAS EMERGED FOR SMALL, NON-CODING RNA MOLECULES KNOWN AS MICRORNAS (MIRNAS) IN THE PATHOPHYSIOLOGY OF MANY NEURODEGENERATIVE DISORDERS. AS EPIGENETIC REGULATORS, MIRNAS POSSESS THE CAPACITY TO REGULATE AND FINE TUNE PROTEIN PRODUCTION BY INHIBITING TRANSLATION. SEVERAL MIRNAS, WHICH INCLUDE MIR-146A, ARE ELEVATED IN THE BRAIN, CSF, AND PLASMA OF AD PATIENTS. MIR-146A PARTICIPATES IN PATHWAYS THAT REGULATE IMMUNE ACTIVATION AND HAS SEVERAL MRNA TARGETS WHICH ENCODE FOR PROTEINS INVOLVED IN CELLULAR ENERGY METABOLISM. AN ADDITIONAL ROLE FOR EXTRACELLULAR VESICLES (EVS) HAS ALSO EMERGED IN THE PROGRESSION AD, AS EVS CAN TRANSFER FUNCTIONALLY ACTIVE PROTEINS AND RNAS FROM DISEASED TO HEALTHY CELLS. IN THE CURRENT STUDY, WE EXPOSED VARIOUS CELL TYPES PRESENT WITHIN THE CNS TO IMMUNOMODULATORY MOLECULES AND OBSERVED SIGNIFICANT UPREGULATION OF MIR-146A EXPRESSION, BOTH WITHIN CELLS AND WITHIN THEIR SECRETED EVS. FURTHER, WE ASSESSED THE EFFECTS OF MIR-146A OVEREXPRESSION ON BIOENERGETIC FUNCTION IN PRIMARY RAT GLIAL CELLS AND FOUND SIGNIFICANT REDUCTIONS IN OXIDATIVE PHOSPHORYLATION AND GLYCOLYSIS. LASTLY, WE CORRELATED MIR-146A EXPRESSION LEVELS WITHIN VARIOUS REGIONS OF THE AD BRAIN TO DISEASE STAGING AND FOUND SIGNIFICANT, POSITIVE CORRELATIONS. THESE NOVEL RESULTS DEMONSTRATE THAT THE MODULATION OF MIR-146A IN RESPONSE TO NEUROINFLAMMATORY STIMULI MAY MEDIATE THE LOSS OF MITOCHONDRIAL INTEGRITY AND FUNCTION IN CELLS, THEREBY CONTRIBUTING TO THE PROGRESSION OF BETA-AMYLOID AND TAU PATHOLOGY IN THE AD BRAIN. MULTIPLE INFLAMMATORY STIMULI CAN UPREGULATE MIRNA-146A EXPRESSION WITHIN NEURONS, MIXED GLIAL CELLS, AND BRAIN ENDOTHELIAL CELLS, WHICH IS EITHER RETAINED WITHIN THESE CELLS OR RELEASED FROM THEM AS EXTRACELLULAR VESICLE CARGO. THE UPREGULATION OF MIR-146A DISRUPTS CELLULAR BIOENERGETICS IN MIXED GLIAL CELLS. THIS MECHANISM MAY PLAY A CRITICAL ROLE IN THE NEUROINFLAMMATORY RESPONSE OBSERVED DURING ALZHEIMER'S DISEASE.	2022	
                                                                                                                                                                                                                                                                                         
7   330  17 ALPHA-SYNUCLEIN AND MECHANISMS OF EPIGENETIC REGULATION. SYNUCLEINOPATHIES ARE A GROUP OF NEURODEGENERATIVE DISEASES WITH COMMON PATHOLOGICAL LESIONS ASSOCIATED WITH THE EXCESSIVE ACCUMULATION AND ABNORMAL INTRACELLULAR DEPOSITION OF TOXIC SPECIES OF ALPHA-SYNUCLEIN. THE SHARED CLINICAL FEATURES ARE CHRONIC PROGRESSIVE DECLINE OF MOTOR, COGNITIVE, AND BEHAVIORAL FUNCTIONS. THESE DISORDERS INCLUDE PARKINSON'S DISEASE, DEMENTIA WITH LEWY BODY, AND MULTIPLE SYSTEM ATROPHY. VIGOROUS RESEARCH IN THE MECHANISMS OF PATHOLOGY OF THESE ILLNESSES IS CURRENTLY UNDER WAY TO FIND DISEASE-MODIFYING TREATMENT AND MOLECULAR MARKERS FOR EARLY DIAGNOSIS. ALPHA-SYNUCLEIN IS A PRONE-TO-AGGREGATE, SMALL AMYLOIDOGENIC PROTEIN WITH MULTIPLE ROLES IN SYNAPTIC VESICLE TRAFFICKING, NEUROTRANSMITTER RELEASE, AND INTRACELLULAR SIGNALING EVENTS. ITS EXPRESSION IS CONTROLLED BY SEVERAL MECHANISMS, ONE OF WHICH IS EPIGENETIC REGULATION. WHEN TRANSMITTED TO THE NUCLEUS, ALPHA-SYNUCLEIN BINDS TO DNA AND HISTONES AND PARTICIPATES IN EPIGENETIC REGULATORY FUNCTIONS CONTROLLING SPECIFIC GENE TRANSCRIPTION. HERE, WE DISCUSS THE VARIOUS ASPECTS OF ALPHA-SYNUCLEIN INVOLVEMENT IN EPIGENETIC REGULATION IN HEALTH AND DISEASES.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
8  4350  35 MIR-181A-5P IS A POTENTIAL CANDIDATE EPIGENETIC BIOMARKER IN MULTIPLE SCLEROSIS. MULTIPLE SCLEROSIS (MS) IS A CHRONIC INFLAMMATORY DISEASE OF THE CENTRAL NERVOUS SYSTEM (CNS) CHARACTERIZED BY DEMYELINATION AND AXONAL DEGENERATION. ABNORMAL EXPRESSION OF MICRORNAS (MIRNAS) PLAYS AN IMPORTANT ROLE IN MS PATHOLOGY. IN THIS COHORT STUDY, DIFFERENTIAL EXPRESSION OF THE FOUR MIRNAS (HSA-MIR-155-5P, HSA-MIR-9-5P, HSA-MIR-181A-5P, AND HSA-MIR-125B-5P) WAS INVESTIGATED IN 69 INDIVIDUALS, INCLUDING 39 MS PATIENTS (RELAPSING-REMITTING MS (RRMS), N = 27; SECONDARY PROGRESSIVE MS (SPMS), N = 12) AND 30 HEALTHY CONTROLS. IN SILICO ANALYSES REVEALED POSSIBLE GENES AND PATHWAYS SPECIFIC TO MIRNAS. PERIPHERAL BLOOD MIRNA EXPRESSIONS WERE DETECTED BY QUANTITATIVE REAL-TIME PCR (QPCR). HSA-MIR-181A-5P WAS DOWNREGULATED AND ASSOCIATED WITH INCREASED MS RISK (P = 0.012). THE OTHER THREE MIRNAS WERE UPREGULATED AND NOT ASSOCIATED WITH MS (P < 0.05). THE AREA UNDER THE CURVE (AUC) IS 0.779. IN SILICO ANALYSES SHOWED THAT HSA-MIR-181A-5P MAY PARTICIPATE IN MS PATHOLOGY BY TARGETING MAP2K1, CREB1, ATXN1, AND ATXN3 GENES IN INFLAMMATION AND NEURODEGENERATION PATHWAYS. THE CIRCULATORY HSA-MIR-181A-5P CAN REGULATE TARGET GENES, REVERSING THE MECHANISMS INVOLVED IN MS PATHOLOGIES SUCH AS PROTEIN UPTAKE AND PROCESSING, CELL PROLIFERATION AND SURVIVAL, INFLAMMATION, AND NEURODEGENERATION. THUS, THIS MIRNA COULD BE USED AS AN EPIGENOMIC-GUIDED DIAGNOSTIC TOOL AND FOR THERAPEUTIC PURPOSE.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
9  4379  31 MITOCHONDRIAL DYSFUNCTION AND AGING: INSIGHTS FROM THE ANALYSIS OF EXTRACELLULAR VESICLES. THE PROGRESSIVE DECLINE OF CELL FUNCTION AND INTEGRITY, MANIFESTING CLINICALLY AS INCREASED VULNERABILITY TO ADVERSE OUTCOMES AND DEATH, IS CORE TO BIOLOGICAL AGING. MITOCHONDRIAL DYSFUNCTION, OXIDATIVE STRESS, ALTERED INTERCELLULAR COMMUNICATION (INCLUDING CHRONIC LOW-GRADE INFLAMMATION), GENOMIC INSTABILITY, TELOMERE ATTRITION, LOSS OF PROTEOSTASIS, ALTERED NUTRIENT SENSING, EPIGENETIC ALTERATIONS, AND STEM CELL EXHAUSTION HAVE BEEN PROPOSED AS HALLMARKS OF AGING. THESE "AGING PILLARS" ARE NOT MUTUALLY EXCLUSIVE, MAKING THE MATTER INTRICATE AND LEAVING NUMEROUS UNANSWERED QUESTIONS. THE CHARACTERIZATION OF CIRCULATING EXTRACELLULAR VESICLES (EVS) HAS RECENTLY ALLOWED SPECIFIC SECRETORY PHENOTYPES ASSOCIATED WITH AGING TO BE IDENTIFIED. AS SUCH, EVS MAY SERVE AS NOVEL BIOMARKERS FOR CAPTURING THE COMPLEXITY OF AGING. BESIDES THE MITOCHONDRIAL(-)LYSOSOMAL AXIS, EV TRAFFICKING HAS BEEN PROPOSED AS AN ADDITIONAL LAYER IN MITOCHONDRIAL QUALITY CONTROL. INDEED, DISRUPTION OF THE MITOCHONDRIAL(-)LYSOSOMAL AXIS COUPLED WITH ABNORMAL EV SECRETION MAY PLAY A ROLE IN THE PATHOGENESIS OF AGING AND SEVERAL DISEASE CONDITIONS. HERE, WE DISCUSS (1) THE MECHANISMS OF EV GENERATION; (2) THE RELATIONSHIP BETWEEN THE MITOCHONDRIAL(-)LYSOSOMAL AXIS AND EV TRAFFICKING IN THE SETTING OF MITOCHONDRIAL QUALITY CONTROL; AND (3) THE PROSPECT OF USING EVS AS AGING BIOMARKERS AND AS DELIVERY SYSTEMS FOR THERAPEUTICS AGAINST AGE-RELATED CONDITIONS.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
10   314  25 ALCOHOL USE DISORDER IS ASSOCIATED WITH UPREGULATION OF MICRORNA-34A AND MICRORNA-34C IN HIPPOCAMPAL POSTMORTEM TISSUE. BACKGROUND: TO INVESTIGATE EPIGENETIC MECHANISMS POTENTIALLY INVOLVED IN THE COGNITIVE DECLINE ASSOCIATED WITH CHRONIC ALCOHOL INTAKE, WE EVALUATED THE EXPRESSIONS OF THREE MICRO-RNAS (MIR-34A, -34B, AND -34C) HIGHLY EXPRESSED IN THE HIPPOCAMPUS AND INVOLVED IN NEURONAL PHYSIOLOGY AND PATHOLOGY. MIR-34A PARTICIPATES IN FUNCTIONING AND SURVIVAL OF MATURE NEURONS; MIR-34B IS ASSOCIATED WITH ALZHEIMER-LIKE DISORDERS; AND MIR-34C IS IMPLICATED IN THE MEMORY IMPAIRMENT OF ALZHEIMER DISEASE IN RODENTS AND HUMANS. METHODS: A TOTAL OF 69 CASES WERE SELECTED FROM THE BIOBANK FOR AGING STUDIES AND CATEGORIZED ACCORDING TO THE ABSENCE (N = 50) OR PRESENCE (N = 19) OF ALCOHOL USE DISORDER (AUD). CASES PRESENTING WITH NEUROPATHOLOGICAL DIAGNOSES OF DEMENTIAS WERE EXCLUDED. TOTAL RNA WAS EXTRACTED FROM HIPPOCAMPAL PARAFFINIZED SLICES, COMPLEMENTARY DNA WAS SYNTHESIZED FROM MIRS, AND RT-QPCR WAS PERFORMED WITH TAQMAN((R)) ASSAYS. RESULTS: HIGHER EXPRESSIONS OF MIR-34A AND MIR-34C, BUT NOT OF MIR-34B, WERE FOUND IN THE GROUP WITH AUD IN COMPARISON WITH THE GROUP WITHOUT AUD AFTER ADJUSTMENT FOR POTENTIAL CONFOUNDERS (AGE, SEX, BODY MASS INDEX, PRESENCE OF HYPERTENSION, DIABETES MELLITUS, SMOKING, AND PHYSICAL INACTIVITY). CONCLUSIONS: HIPPOCAMPAL UPREGULATION OF MIR-34A AND MIR-34C MAY BE INVOLVED IN THE COGNITIVE DECLINE ASSOCIATED WITH CHRONIC ALCOHOL CONSUMPTION.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
11  1009  38 CHRONIC VOLUNTARY ETHANOL DRINKING IN CYNOMOLGUS MACAQUES ELICITS GENE EXPRESSION CHANGES IN PREFRONTAL CORTICAL AREA 46. BACKGROUND: GENOME-WIDE PROFILING TO EXAMINE BRAIN TRANSCRIPTIONAL FEATURES ASSOCIATED WITH EXCESSIVE ETHANOL (ETOH) CONSUMPTION HAS BEEN APPLIED TO A VARIETY OF SPECIES INCLUDING RODENTS, NONHUMAN PRIMATES (NHPS), AND HUMANS. HOWEVER, THESE DATA WERE OBTAINED FROM CROSS-SECTIONAL SAMPLES WHICH ARE PARTICULARLY VULNERABLE TO INDIVIDUAL VARIATION WHEN OBTAINED FROM SMALL OUTBRED POPULATIONS TYPICAL OF HUMAN AND NHP STUDIES. IN THE CURRENT STUDY, A NOVEL WITHIN-SUBJECT DESIGN WAS USED TO EXAMINE THE EFFECTS OF VOLUNTARY ETOH CONSUMPTION ON PREFRONTAL CORTEX (PFC) GENE EXPRESSION IN A NHP MODEL. METHODS: TWO COHORTS OF CYNOMOLGUS MACAQUES (N = 23) UNDERWENT A SCHEDULE-INDUCED POLYDIPSIA PROCEDURE TO ESTABLISH ETOH SELF-ADMINISTRATION FOLLOWED BY 6 MONTHS OF DAILY OPEN ACCESS TO ETOH (4% W/V) AND WATER. INDIVIDUAL DAILY ETOH INTAKES RANGED FROM AN AVERAGE OF 0.7 TO 3.7 G/KG/D. DORSAL LATERAL PFC AREA 46 (A46) BRAIN BIOPSIES WERE COLLECTED IN ETOH-NAIVE AND CONTROL MONKEYS; CONTRALATERAL A46 BIOPSIES WERE COLLECTED FROM THE SAME MONKEYS FOLLOWING THE 6 MONTHS OF FLUID CONSUMPTION. GENE EXPRESSION CHANGES WERE ASSESSED USING RNA-SEQ PAIRED ANALYSIS, WHICH ALLOWED FOR CORRECTION OF INDIVIDUAL BASELINE DIFFERENCES IN GENE EXPRESSION. RESULTS: A TOTAL OF 675 GENES WERE SIGNIFICANTLY DOWN-REGULATED FOLLOWING ETOH CONSUMPTION; THESE WERE FUNCTIONALLY ENRICHED FOR IMMUNE RESPONSE, CELL ADHESION, PLASMA MEMBRANE, AND EXTRACELLULAR MATRIX. A TOTAL OF 567 GENES THAT WERE UP-REGULATED FOLLOWING ETOH CONSUMPTION WERE ENRICHED IN MICRORNA TARGET SITES AND INCLUDED TARGET SITES ASSOCIATED WITH TOLL-LIKE RECEPTOR PATHWAYS. THE DIFFERENTIALLY EXPRESSED GENES WERE ALSO SIGNIFICANTLY ENRICHED IN TRANSCRIPTION FACTOR BINDING SITES. CONCLUSIONS: THE DATA PRESENTED HERE ARE THE FIRST TO USE A LONGITUDINAL BIOPSY STRATEGY TO EXAMINE HOW CHRONIC ETOH CONSUMPTION AFFECTS GENE EXPRESSION IN THE PRIMATE PFC. PROMINENT EFFECTS WERE SEEN IN BOTH CELL ADHESION AND NEUROIMMUNE PATHWAYS; THE LATTER CONTAINED BOTH PRO- AND ANTIINFLAMMATORY GENES. THE DATA ALSO INDICATE THAT CHANGES IN MIRNAS AND TRANSCRIPTION FACTORS MAY BE IMPORTANT EPIGENETIC REGULATORS OF ETOH CONSUMPTION.	2020	
                                                                                                                                                                          
12  5479  32 RESVERATROL ATTENUATES CIGARETTE SMOKE EXTRACT INDUCED CELLULAR SENESCENCE IN HUMAN AIRWAY EPITHELIAL CELLS BY REGULATING THE MIR-34A/SIRT1/NF-KAPPAB PATHWAY. CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) IS CHARACTERIZED BY ACCELERATED LUNG AGING. SMOKING IS THE CRITICAL RISK FACTOR FOR COPD. CELLULAR SENESCENCE OF AIRWAY EPITHELIAL CELLS IS THE CYTOLOGICAL BASIS OF ACCELERATED LUNG AGING IN COPD, AND THE REGULATION OF MICRORNAS (MIRNAS) IS THE CENTRAL EPIGENETIC MECHANISM OF CELLULAR SENESCENCE. RESVERATROL (RES) IS A POLYPHENOL WITH ANTI-AGING PROPERTIES. THIS STUDY INVESTIGATED WHETHER RES ATTENUATES CIGARETTE SMOKE EXTRACT (CSE)-INDUCED CELLULAR SENESCENCE IN HUMAN AIRWAY EPITHELIAL CELLS (BEAS-2B) THROUGH THE MIR-34A/SIRT1/NUCLEAR FACTOR-KAPPAB (NF-KAPPAB) PATHWAY. BEAS-2B CELLS WERE TREATED WITH RES, CSE AND TRANSFECTED WITH MIR-34A-5P MIMICS. CELLULAR SENESCENCE WAS EVALUATED BY SENESCENCE -RELATED BETA-GALACTOSIDASE (SA-BETA-GAL) STAINING AND EXPRESSION OF SENESCENCE-RELATED GENES (P16, P21, AND P53). THE EXPRESSIONS OF MIR-34A-5P, SIRT1, AND NF-KAPPAB P65 WERE EXAMINED USING QUANTITATIVE REAL TIME POLYMERASE CHAIN REACTION AND WESTERN BLOTTING. THE SENESCENCE-ASSOCIATED SECRETORY PHENOTYPE (SASP) CYTOKINES (IL-1BETA, IL-6, IL-8, TNF-ALPHA) WERE ASSESSED BY ENZYME-LINKED IMMUNOSORBENT ASSAY. THE BINDING BETWEEN MIR-34A-5P AND SIRT1 WAS CONFIRMED BY DUAL-LUCIFERASE REPORTER ASSAY. THE RESULTS SHOWED THAT CSE DOSE-DEPENDENTLY DECREASED CELL VIABILITY AND ELEVATED CELLULAR SENESCENCE, CHARACTERIZED BY INCREASED SA-BETA-GAL STAINING AND SENESCENCE-RELATED GENE EXPRESSIONS (P16, P21, AND P53). FURTHER, CSE DOSE-DEPENDENTLY INCREASED THE EXPRESSION OF MIR-34A-5P AND SASP CYTOKINES (IL-1BETA, IL-6, IL-8, TNF-ALPHA) IN BEAS-2B CELLS. PRETREATMENT WITH RES INHIBITED CSE-INDUCED CELLULAR SENESCENCE AND SECRETION OF SASP CYTOKINES (IL-1BETA, IL-6, IL-8, TNF-ALPHA) IN A DOSE-DEPENDENT MANNER. MOREOVER, RES REVERSED THE CSE-INDUCED DOWN-REGULATION OF SIRT1 AND UP-REGULATION OF MIR-34A-5P AND NF-KAPPAB P65. SIRT1 IS A TARGET OF MIR-34A-5P. OVEREXPRESSION OF MIR-34A-5P VIA TRANSFECTION WITH MIR-34A-5P MIMIC IN BEAS-2B CELLS ATTENUATED THE INHIBITORY EFFECT OF RES ON CELLULAR SENESCENCE, ACCOMPANIED BY REVERSING THE EXPRESSION OF SIRT1 AND NF-KAPPAB P65. IN CONCLUSION, RES ATTENUATED CSE-INDUCED CELLULAR SENESCENCE IN BEAS-2B CELLS BY REGULATING THE MIR-34A/SIRT1/NF-KAPPAB PATHWAY, WHICH MAY PROVIDE A NEW APPROACH FOR COPD TREATMENT.	2022	

13  5891  25 SYSTEMS BIOLOGY IN CHRONIC HEART FAILURE-IDENTIFICATION OF POTENTIAL MIRNA REGULATORS. HEART FAILURE (HF) IS A COMPLEX DISEASE ENTITY WITH HIGH CLINICAL IMPACT, POORLY UNDERSTOOD PATHOPHYSIOLOGY AND SCANTLY KNOWN MIRNA-MEDIATED EPIGENETIC REGULATION. WE HAVE ANALYSED MIRNA PATTERNS IN PATIENTS WITH CHRONIC HF (CHF) AND A SEX- AND AGE-MATCHED REFERENCE GROUP AND PURSUED AN IN SILICO SYSTEM BIOLOGY ANALYSIS TO DISCERN PATHWAYS INVOLVED IN CHF PATHOPHYSIOLOGY. TWENTY-EIGHT MIRNAS WERE IDENTIFIED IN CHF THAT WERE UP-REGULATED IN THE REFERENCE GROUP, AND EIGHT OF THEM WERE VALIDATED BY RT-QPCR. IN SILICO ANALYSIS OF PREDICTED TARGETS BY STRING PROTEIN-PROTEIN INTERACTION NETWORKS REVEALED EIGHT CLUSTER NETWORKS (INVOLVING SEVEN OF THE IDENTIFIED MIRNAS) ENRICHED IN PATHWAYS RELATED TO CELL CYCLE, RAS, CHEMOKINE, PI3K-AKT AND TGF-BETA SIGNALING. BY ROC CURVE ANALYSIS, COMBINED PROBABILITIES OF THESE SEVEN MIRNAS (LET-7A-5P, MIR-107, MIR-125A-5P, MIR-139-5P, MIR-150-5P, MIR-30B-5P AND MIR-342-3P; CLUSTERS 1-4 [C:1-4]), DISCRIMINATED BETWEEN HF WITH PRESERVED EJECTION FRACTION (HFPEF) AND HF WITH REDUCED EJECTION FRACTION (HFREF), AND ISCHAEMIC AND NON-ISCHAEMIC AETIOLOGY. A COMBINATION OF MIR-107, MIR-139-5P AND MIR-150-5P, INVOLVED IN CLUSTERS 5 AND 7 (C:5+7), DISCRIMINATED HFPEF FROM HFREF. PATHWAY ENRICHMENT ANALYSIS OF MIRNAS PRESENT IN C:1-4 (LET-7A-5P, MIR-125A-5P, MIR-30B-5P AND MIR-342-3P) REVEALED PATHWAYS RELATED TO HF PATHOGENESIS. IN CONCLUSION, WE HAVE IDENTIFIED A DIFFERENTIAL SIGNATURE OF DOWN-REGULATED MIRNAS IN THE PLASMA OF HF PATIENTS AND PROPOSE NOVEL CELLULAR MECHANISMS INVOLVED IN CHF PATHOGENESIS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
14  6418  34 THE TEMPORAL EXPRESSION OF CIRCULATING MICRORNAS AFTER ACUTE EXPERIMENTAL PAIN IN HUMANS. BACKGROUND: MICRORNAS (MIRNAS) CAN MODULATE SEVERAL BIOLOGICAL SYSTEMS, INCLUDING THE PAIN SYSTEM. THIS STUDY AIMED TO EVALUATE THE TEMPORAL EXPRESSION OF CIRCULATING MIRNAS IN THE PLASMA OF HEALTHY VOLUNTEERS AS A MARKER FOR EPIGENETIC CHANGES BEFORE AND AFTER AN ACUTE, EXPERIMENTAL, PAIN PROVOCATION BY INTRAMUSCULAR HYPERTONIC SALINE INJECTION. METHODS: TWENTY VOLUNTEERS WERE RANDOMLY ALLOCATED INTO TWO GROUPS AND RECEIVED EITHER HYPERTONIC (PAIN) OR ISOTONIC (CONTROL) SALINE INJECTION IN THE FIRST DORSAL INTEROSSEOUS MUSCLE OF THEIR DOMINANT HAND. PAIN INTENSITY WAS CONTINUOUSLY RECORDED FOR 20 MINUTES AFTER INJECTION ON A VAS SCALE FROM 0 TO 100 (0 INDICATES NO PAIN AND 100 THE WORST IMAGINABLE PAIN). BLOOD SAMPLES WERE TAKEN AT BASELINE, 30 MINUTES, 3 HOURS, AND 24 HOURS POST-INJECTION, AND PLASMA WAS SEPARATED. MIRNA EXTRACTS WERE USED FOR RNA SEQUENCING WITH THE ILLUMINA NEXTSEQ PLATFORM. MIRNA TRANSCRIPTS WERE COMPARED BETWEEN THE PAIN AND THE NO-PAIN, CONTROL GROUP AT EVERY TIME POINT. SIGNIFICANT DIFFERENCES WERE CONSIDERED WHEN FOLDS WERE >2 AND THE FALSE DISCOVERY RATE WAS P < 0.05. RESULTS: AFTER 30 MINUTES, 4 MIRNAS WERE SIGNIFICANTLY ALTERED IN THE PAIN GROUP COMPARED TO CONTROLS, WHICH INCREASED TO 24 AFTER 3 HOURS AND TO 42 AFTER 24 HOURS FROM BASELINE (P < 0.0001). TWO MIRNAS WERE CONSISTENTLY UPREGULATED THROUGHOUT THE EXPERIMENT. ENRICHMENT ANALYSIS SHOWED SIGNIFICANT MIRNAS INVOLVED IN BRAIN PERCEPTION OF PAIN, BRAIN SIGNALLING AND RESPONSE TO STIMULI. CONCLUSIONS: THIS EXPLORATORY STUDY IS THE FIRST TO REPORT ON THE TEMPORAL EXPRESSION OF CIRCULATING MIRNAS AFTER AN ACUTE, HUMAN EXPERIMENTAL MUSCLE PAIN MODEL. SIGNIFICANCE: THIS EXPLORATORY STUDY EVALUATED THE TEMPORAL PROFILE OF CIRCULATING MIRNAS IN THE PLASMA OF HEALTHY SUBJECTS AFTER ACUTE EXPERIMENTAL PAIN. SEVERAL MIRNAS WERE ALTERED IN SUBJECTS AT THE TIMES OF FOLLOW-UP AFTER THE ACUTE PAIN MODEL WHEN COMPARED TO CONTROLS. MIRNAS PREVIOUSLY ASSOCIATED WITH PAIN PROCESSES WERE ALTERED IN THE PAIN GROUP. OUR RESULTS, BY SHOWING THE FAST AND PROLONGED MODIFICATIONS OF MIRNA ELICITED BY THE ACUTE EXPERIMENTAL PAIN MODEL, ADD NEW PERSPECTIVES TO THE TOPIC OF EPIGENETICS AND PAIN.	2023	
                                                                                                                                                                                            
15   950  25 CHRONIC MILD STRESS EXACERBATES SEVERITY OF EXPERIMENTAL AUTOIMMUNE ENCEPHALOMYELITIS IN ASSOCIATION WITH ALTERED NON-CODING RNA AND METABOLIC BIOMARKERS. THE CAUSAL FACTORS DETERMINING THE ONSET AND SEVERITY OF MULTIPLE SCLEROSIS (MS) ARE NOT WELL UNDERSTOOD. HERE, WE INVESTIGATED THE INFLUENCE OF CHRONIC STRESS ON CLINICAL SYMPTOMS, METABOLIC AND EPIGENETIC MANIFESTATIONS OF EXPERIMENTAL AUTOIMMUNE ENCEPHALOMYELITIS (EAE), A COMMON ANIMAL MODEL OF MS. LEWIS RATS WERE IMMUNIZED FOR MONOPHASIC EAE WITH MBP(69-88) AND WERE EXPOSED TO CHRONIC STRESS FOR 37DAYS STARTING 7DAYS PRIOR TO IMMUNIZATION. THE EXPOSURE TO STRESS ACCELERATED AND EXACERBATED THE CLINICAL SYMPTOMS OF EAE. BOTH STRESS AND EAE ALSO DISRUPTED METABOLIC STATUS AS INDICATED BY TRACE ELEMENTAL ANALYSIS IN BODY HAIR. STRESS PARTICULARLY EXACERBATED CHLORINE DEPOSITION IN EAE ANIMALS. MOREOVER, DEEP SEQUENCING REVEALED A CONSIDERABLE IMPACT OF STRESS ON MICRORNA EXPRESSION IN EAE. EAE BY ITSELF UPREGULATED MICRORNA EXPRESSION IN LUMBAR SPINAL CORD, INCLUDING MIR-21, MIR-142-3P, MIR-142-5P, MIR-146A, AND MIR-155. STRESS IN EAE FURTHER UP-REGULATED MIR-16, MIR-146A AND MIR-155 LEVELS. THE LATTER TWO MICRORNAS ARE RECOGNIZED BIOMARKERS OF HUMAN MS. THUS, STRESS MAY SYNERGISTICALLY EXACERBATE SEVERITY OF EAE BY ALTERING EPIGENETIC REGULATORY PATHWAYS. THE FINDINGS SUGGEST THAT STRESS MAY REPRESENT A SIGNIFICANT RISK FACTOR FOR SYMPTOMATIC DETERIORATION IN MS. STRESS-RELATED METABOLIC AND MICRORNA SIGNATURES SUPPORT THEIR VALUE AS BIOMARKERS FOR PREDICTING THE RISK AND SEVERITY OF MS.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
16  3506  42 IDENTIFICATION OF SPINAL CORD MICRORNA AND GENE SIGNATURES IN A MODEL OF CHRONIC STRESS-INDUCED VISCERAL HYPERALGESIA IN RAT. INTRODUCTION: ANIMAL STUDIES HAVE SHOWN THAT STRESS COULD INDUCE EPIGENETIC AND TRANSCRIPTOMIC ALTERATIONS ESSENTIAL IN DETERMINING THE BALANCE BETWEEN ADAPTIVE OR MALADAPTIVE RESPONSES TO STRESS. WE TESTED THE HYPOTHESIS THAT CHRONIC STRESS IN RATS DEREGULATES CODING AND NON-CODING GENE EXPRESSION IN THE SPINAL CORD, WHICH MAY UNDERLINE NEUROINFLAMMATION AND NOCICEPTIVE CHANGES PREVIOUSLY OBSERVED IN THIS MODEL. METHODS: MALE WISTAR RATS WERE EXPOSED TO DAILY STRESS OR HANDLED, FOR 10 DAYS. AT DAY 11, LUMBAR SPINAL SEGMENTS WERE COLLECTED AND PROCESSED FOR MRNA/MIRNA ISOLATION FOLLOWED BY EXPRESSION PROFILING USING AGILENT SUREPRINT RAT EXON AND RAT MIRNA MICROARRAY PLATFORMS. DIFFERENTIALLY EXPRESSED GENE LISTS WERE GENERATED USING THE DCHIP PROGRAM. MICROARRAYS WERE ANALYZED USING THE INGENUITY PATHWAYS ANALYSIS (IPA) TOOL FROM INGENUITY SYSTEMS. MULTIPLE METHODS WERE USED FOR THE ANALYSIS OF MIRNA-MRNA FUNCTIONAL MODULES. QUANTITATIVE REAL TIME RT-PCR FOR INTERLEUKIN 6 SIGNAL TRANSDUCER (GP130), THE SIGNAL TRANSDUCER AND ACTIVATOR OF TRANSCRIPTION 3 (STAT3), GLIAL FIBRILLARY ACIDIC PROTEIN AND MIR-17-5P WERE PERFORMED TO CONFIRM LEVELS OF EXPRESSION. RESULTS: GENE NETWORK ANALYSIS REVEALED THAT STRESS DEREGULATED DIFFERENT INFLAMMATORY (IL-6, JAK/STAT, TNF) AND METABOLIC (PI3K/AKT) SIGNALING PATHWAYS. MICRORNA ARRAY ANALYSIS REVEALED A SIGNATURE OF 39 DEREGULATED MICRORNAS IN STRESSED RATS. MICRORNA-GENE NETWORK ANALYSIS SHOWED THAT MICRORNAS ARE REGULATORS OF TWO GENE NETWORKS RELEVANT TO INFLAMMATORY PROCESSES. SPECIFICALLY, OUR ANALYSIS OF MIRNA-MRNA FUNCTIONAL MODULES IDENTIFIED MIR-17-5P AS AN IMPORTANT REGULATOR IN OUR MODEL. WE VERIFIED MIR-17-5P INCREASED EXPRESSION IN STRESS USING QPCR AND IN SITU HYBRIDIZATION. IN ADDITION, WE OBSERVED CHANGES IN THE EXPRESSION OF GP130 AND STAT3 (INVOLVED IN INTRACELLULAR SIGNALING CASCADES IN RESPONSE TO GP130 ACTIVATION), BOTH PREDICTED TARGETS FOR MIR-17-5P. A MODULATORY ROLE OF SPINAL MIR17-5P IN THE MODULATION OF VISCERAL SENSITIVITY WAS CONFIRMED IN VIVO. CONCLUSION: USING AN INTEGRATIVE HIGH THROUGHPUT APPROACH, OUR FINDINGS SUGGEST A LINK BETWEEN MIR-17-5P INCREASED EXPRESSION AND GP130/STAT3 ACTIVATION PROVIDING NEW INSIGHT INTO THE POSSIBLE MECHANISMS MEDIATING THE EFFECT OF CHRONIC STRESS ON NEUROINFLAMMATION IN THE SPINAL CORD.	2015	
               
17  2775  23 EXTRACELLULAR VESICLES AND ASTHMA-MORE THAN JUST A CO-EXISTENCE. EXTRACELLULAR VESICLES (EVS) ARE MEMBRANOUS STRUCTURES, WHICH ARE SECRETED BY ALMOST EVERY CELL TYPE ANALYZED SO FAR. IN ADDITION TO THEIR IMPORTANCE FOR CELL-CELL COMMUNICATION UNDER PHYSIOLOGICAL CONDITIONS, EVS ARE ALSO RELEASED DURING PATHOGENESIS AND MECHANISTICALLY CONTRIBUTE TO THIS PROCESS. HERE WE SUMMARIZE THEIR FUNCTIONAL RELEVANCE IN ASTHMA, ONE OF THE MOST COMMON CHRONIC NON-COMMUNICABLE DISEASES. ASTHMA IS A COMPLEX PERSISTENT INFLAMMATORY DISORDER OF THE AIRWAYS CHARACTERIZED BY REVERSIBLE AIRFLOW OBSTRUCTION AND, FROM A LONG-TERM PERSPECTIVE, AIRWAY REMODELING. OVERALL, MECHANISTIC STUDIES SUMMARIZED HERE INDICATE THE IMPORTANCE OF DIFFERENT SUBTYPES OF EVS AND THEIR VARIABLE CARGOES IN THE FUNCTIONING OF THE PATHWAYS UNDERLYING ASTHMA, AND SHOW SOME INTERESTING POTENTIAL FOR THE DEVELOPMENT OF FUTURE THERAPEUTIC INTERVENTIONS. ASSOCIATION STUDIES IN TURN DEMONSTRATE A GOOD DIAGNOSTIC POTENTIAL OF EVS IN ASTHMA.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
18  4338  26 MICROVASCULAR BARRIER PROTECTION BY MICRORNA-183 VIA FOXO1 REPRESSION: A PATHWAY DISTURBED IN NEUROPATHY AND COMPLEX REGIONAL PAIN SYNDROME. BLOOD NERVE BARRIER DISRUPTION AND EDEMA ARE COMMON IN NEUROPATHIC PAIN AS WELL AS IN COMPLEX REGIONAL PAIN SYNDROME (CRPS). MICRORNAS (MIRNA) ARE EPIGENETIC MULTITARGET SWITCHES CONTROLLING NEURONAL AND NON-NEURONAL CELLS IN PAIN. THE MIR-183 COMPLEX ATTENUATES HYPEREXCITABILITY IN NOCICEPTORS, BUT ADDITIONAL NON-NEURONAL EFFECTS VIA TRANSCRIPTION FACTORS COULD CONTRIBUTE AS WELL. THIS STUDY EXPLORED EXOSOMAL MIR-183 IN CRPS AND MURINE NEUROPATHY, ITS EFFECT ON THE MICROVASCULAR BARRIER VIA TRANSCRIPTION FACTOR FOXO1 AND TIGHT JUNCTION PROTEIN CLAUDIN-5, AND ITS ANTIHYPERALGESIC POTENTIAL. SCIATIC MIR-183 DECREASED AFTER CCI. SUBSTITUTION WITH PERINEURAL MIR-183 MIMIC ATTENUATED MECHANICAL HYPERSENSITIVITY AND RESTORED BLOOD NERVE BARRIER FUNCTION. IN VITRO, SERUM FROM CCI MICE UND CRPS PATIENTS WEAKENED THE MICROVASCULAR BARRIER OF MURINE CEREBELLAR ENDOTHELIAL CELLS, INCREASED ACTIVE FOXO1 AND REDUCED CLAUDIN-5, CONCOMITANT WITH A LACK OF EXOSOMAL MIR-183 IN CRPS PATIENTS. CELLULAR STRESS ALSO COMPROMISED THE MICROVASCULAR BARRIER WHICH WAS RESCUED EITHER BY MIR-183 MIMIC VIA FOXO1 REPRESSION OR BY PRIOR SILENCING OF FOXO1. PERSPECTIVE: LOW MIR-183 LEADING TO BARRIER IMPAIRMENT VIA FOXO1 AND SUBSEQUENT CLAUDIN-5 SUPPRESSION IS A NEW ASPECT IN THE PATHOPHYSIOLOGY OF CRPS AND NEUROPATHIC PAIN. THIS PATHWAY MIGHT HELP UNTANGLE THE WIDE SYMPTOMATIC RANGE OF CRPS AND NURTURE FURTHER RESEARCH INTO MIRNA MIMICS OR FOXO1 INHIBITORS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
19   353  36 ALTERED LEVELS OF IMMUNE-REGULATORY MICRORNAS IN PLASMA SAMPLES OF PATIENTS WITH LUPUS NEPHRITIS. INTRODUCTION: LUPUS NEPHRITIS (LN) IS A MAJOR CAUSE OF MORTALITY AND MORBIDITY IN THE PATIENTS WITH LUPUS, A CHRONIC AUTOIMMUNE DISEASE. THE ROLE OF GENETIC AND EPIGENETIC FACTORS IS EMPHASIZED IN THE PATHOGENESIS OF LN. THE AIM OF THE PRESENT STUDY WAS TO EVALUATE THE LEVELS OF IMMUNE-REGULATORY MICRORNAS (E.G., MIR-31, MIR-125A, MIR-142-3P, MIR-146A, AND MIR-155) IN PLASMA SAMPLES OF PATIENTS WITH LN. METHODS: IN THIS STUDY, 26 PATIENTS WITH LN AND 26 HEALTHY INDIVIDUALS WERE INCLUDED. THE PLASMA LEVELS OF THE MICRORNAS WERE EVALUATED BY A QUANTITATIVE REAL-TIME PCR. MOREOVER, THE CORRELATION OF CIRCULATING PLASMA MICRORNAS WITH DISEASE ACTIVITY AND PATHOLOGICAL FINDINGS ALONG WITH THEIR ABILITY TO DISTINGUISH PATIENTS WITH LN WERE ASSESSED. RESULTS: PLASMA LEVELS OF MIR-125A (P = 0.048), MIR-146A (P = 0.005), AND MIR-155 (P< 0.001) WERE SIGNIFICANTLY HIGHER IN COMPARISON BETWEEN THE CASES AND CONTROLS. THE PLASMA LEVEL OF MIR-146A SIGNIFICANTLY CORRELATED WITH THE LEVEL OF ANTI-DOUBLE STRAND-DNA ANTIBODY AND PROTEINURIA. MOREOVER, THERE WAS A SIGNIFICANT CORRELATION BETWEEN MIR-142-3P LEVELS AND DISEASE CHRONICITY AND ACTIVITY INDEX (P <0.05). THE MULTIVARIATE ROC CURVE ANALYSIS INDICATED THE PLASMA CIRCULATING MIR-125A, MIR-142-3P, MIR-146, AND MIR-155 TOGETHER COULD DISCRIMINATE MOST OF THE PATIENTS WITH LN FROM CONTROLS WITH AREA AN UNDER CURVE (AUC) OF 0.89 [95% CI, 0.80-0.98, P<0.001], 88% SENSITIVITY, AND 78% SPECIFICITY. CONCLUSION: BASED ON THE FINDINGS OF THE PRESENT STUDY, THE STUDIED MICRORNAS MAY BE INVOLVED IN THE PATHOGENESIS AND DEVELOPMENT OF LN AND HAVE THE POTENTIAL TO BE USED AS DIAGNOSTIC AND THERAPEUTIC MARKERS IN LN.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
20  1600  21 DNA METHYLATION SIGNATURES OF ALZHEIMER'S DISEASE NEUROPATHOLOGY IN THE CORTEX ARE PRIMARILY DRIVEN BY VARIATION IN NON-NEURONAL CELL-TYPES. ALZHEIMER'S DISEASE (AD) IS A CHRONIC NEURODEGENERATIVE DISEASE CHARACTERIZED BY THE PROGRESSIVE ACCUMULATION OF AMYLOID-BETA AND NEUROFIBRILLARY TANGLES OF TAU IN THE NEOCORTEX. WE PROFILED DNA METHYLATION IN TWO REGIONS OF THE CORTEX FROM 631 DONORS, PERFORMING AN EPIGENOME-WIDE ASSOCIATION STUDY OF MULTIPLE MEASURES OF AD NEUROPATHOLOGY. WE META-ANALYZED OUR RESULTS WITH THOSE FROM PREVIOUS STUDIES OF DNA METHYLATION IN AD CORTEX (TOTAL N = 2013 DONORS), IDENTIFYING 334 CORTICAL DIFFERENTIALLY METHYLATED POSITIONS (DMPS) ASSOCIATED WITH AD PATHOLOGY INCLUDING METHYLOMIC VARIATION AT LOCI NOT PREVIOUSLY IMPLICATED IN DEMENTIA. WE SUBSEQUENTLY PROFILED DNA METHYLATION IN NEUN+ (NEURONAL-ENRICHED), SOX10+ (OLIGODENDROCYTE-ENRICHED) AND NEUN-/SOX10- (MICROGLIA- AND ASTROCYTE-ENRICHED) NUCLEI, FINDING THAT THE MAJORITY OF DMPS IDENTIFIED IN 'BULK' CORTEX TISSUE REFLECT DNA METHYLATION DIFFERENCES OCCURRING IN NON-NEURONAL CELLS. OUR STUDY HIGHLIGHTS THE POWER OF UTILIZING MULTIPLE MEASURES OF NEUROPATHOLOGY TO IDENTIFY EPIGENETIC SIGNATURES OF AD AND THE IMPORTANCE OF CHARACTERIZING DISEASE-ASSOCIATED VARIATION IN PURIFIED CELL-TYPES.	2022