1   132 179 AACR WHITE PAPER: SHAPING THE FUTURE OF CANCER PREVENTION - A ROADMAP FOR ADVANCING SCIENCE AND PUBLIC HEALTH. THE RECENT PACE, EXTENT, AND IMPACT OF PARADIGM-CHANGING CANCER PREVENTION SCIENCE HAS BEEN REMARKABLE. THE AMERICAN ASSOCIATION FOR CANCER RESEARCH (AACR) CONVENED A 3-DAY SUMMIT, ALIGNED WITH FIVE RESEARCH PRIORITIES: (I) PRECANCER ATLAS (PCA). (II) CANCER INTERCEPTION. (III) OBESITY-CANCER LINKAGE, A GLOBAL EPIDEMIC OF CHRONIC LOW-GRADE INFLAMMATION. (IV) IMPLEMENTATION SCIENCE. (V) CANCER DISPARITIES. ALIGNED WITH THESE PRIORITIES, AACR CO-LED THE LANCET COMMISSION TO FORMALLY ENDORSE AND ACCELERATE THE NCI CANCER MOONSHOT PROGRAM, FACILITATING NEW GLOBAL COLLABORATIVE EFFORTS IN CANCER CONTROL. THE EXPANDING SCOPE OF CREATIVE IMPACT IS PERHAPS MOST STARTLING-FROM NCI-FUNDED BUILT ENVIRONMENTS TO AACR TEAM SCIENCE AWARDED STUDIES OF ASIAN CANCER GENOMES INFORMING GLOBAL PRIMARY PREVENTION POLICIES; CELL-FREE EPIGENETIC MARKS IDENTIFYING INCIPIENT NEOPLASTIC SITE; PRACTICE-CHANGING GENOMIC SUBCLASSES IN MYELOPROLIFERATIVE NEOPLASIA (INCLUDING GERMLINE VARIANT TIGHTLY LINKED TO JAK2 V617F HAPLOTYPE); UNIVERSAL GERMLINE GENETIC TESTING FOR PANCREATIC CANCER; AND REPURPOSING DRUGS TARGETING IMMUNE- AND STEM-CELL SIGNALS (E.G., IL-1BETA, PD-1, RANK-L) TO CANCER INTERCEPTION. MICROBIOTA-DRIVEN IL-17 CAN INDUCE STEMNESS AND TRANSFORMATION IN PANCREATIC PRECURSORS (IDENTIFYING ANOTHER REPURPOSING OPPORTUNITY). NOTABLE PROGRESS ALSO INCLUDES HOSTING AN OBESITY SPECIAL CONFERENCE (CONNECTING EPIDEMIOLOGIC AND MOLECULAR PERSPECTIVES TO INFORM CANCER RESEARCH AND PREVENTION STRATEGIES), CO-LEADING CONCERTED NATIONAL IMPLEMENTATION EFFORTS IN HPV VACCINATION, AND CHARTING THE FUTURE ELIMINATION OF CANCER DISPARITIES BY INTEGRATING NEW SCIENCE TOOLS, DISCOVERIES AND PERSPECTIVES INTO COMMUNITY-ENGAGED RESEARCH, INCLUDING TARGETED COUNTER ATTACKS ON E-CIGARETTE AD EXPLOITATION OF CHILDREN, HISPANICS AND BLACKS. FOLLOWING THIS SUMMIT, TWO UNPRECEDENTED FUNDING INITIATIVES WERE CATALYZED TO DRIVE CANCER PREVENTION RESEARCH: THE NCI CANCER MOONSHOT (E.G., PCA AND DISPARITIES); AND THE AACR-STAND UP TO CANCER BOLD "CANCER INTERCEPTION" INITIATIVE.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
2  1296  21 DECREASED MIR-325-5P CONTRIBUTES TO VISCERAL HYPERSENSITIVITY THROUGH POST-TRANSCRIPTIONAL UPREGULATION OF CCL2 IN RAT DORSAL ROOT GANGLIA. CHRONIC VISCERAL HYPERSENSITIVITY IS AN IMPORTANT TYPE OF CHRONIC PAIN WITH UNKNOWN ETIOLOGY AND PATHOPHYSIOLOGY. RECENT STUDIES HAVE SHOWN THAT EPIGENETIC REGULATION PLAYS AN IMPORTANT ROLE IN THE DEVELOPMENT OF CHRONIC PAIN CONDITIONS. HOWEVER, THE ROLE OF MIRNA-325-5P IN CHRONIC VISCERAL PAIN REMAINS UNKNOWN. THE PRESENT STUDY WAS DESIGNED TO DETERMINE THE ROLES AND MECHANISM OF MIRNA-325-5P IN A RAT MODEL OF CHRONIC VISCERAL PAIN. THIS MODEL WAS INDUCED BY NEONATAL COLONIC INFLAMMATION (NCI). IN ADULTHOOD, NCI LED TO A SIGNIFICANT REDUCTION IN THE EXPRESSION OF MIRNA-325-5P IN COLON-RELATED DORSAL ROOT GANGLIA (DRGS), STARTING TO DECREASE AT THE AGE OF 4 WEEKS AND BEING MAINTAINED TO 8 WEEKS. INTRATHECAL ADMINISTRATION OF MIRNA-325-5P AGOMIR SIGNIFICANTLY ENHANCED THE COLORECTAL DISTENTION (CRD) THRESHOLD IN A TIME-DEPENDENT MANNER. NCI ALSO MARKEDLY INCREASED THE EXPRESSION OF CCL2 (C-C MOTIF CHEMOKINE LIGAND 2) IN COLON-RELATED DRGS AT THE MRNA AND PROTEIN LEVELS RELATIVE TO AGE-MATCHED CONTROL RATS. THE EXPRESSION OF CXCL12, IL33, SFRS7, AND LGI1 WAS NOT SIGNIFICANTLY ALTERED IN NCI RATS. CCL2 WAS CO-EXPRESSED IN NEUN-POSITIVE DRG NEURONS BUT NOT IN GLUTAMINE SYNTHETASE-POSITIVE GLIAL CELLS. FURTHERMORE, CCL2 WAS MAINLY EXPRESSED IN ISOLECTIN B4-BINDING- AND CALCITONIN GENE-RELATED PEPTIDE-POSITIVE DRG NEURONS BUT IN FEW NF-200-POSITIVE CELLS. MORE IMPORTANTLY, CCL2 WAS EXPRESSED IN MIR-325-5P-POSITIVE DRG NEURONS. INTRATHECAL INJECTION OF MIRNA-325-5P AGOMIR REMARKABLY REDUCED THE UPREGULATION OF CCL2 IN NCI RATS. ADMINISTRATION OF BINDARIT, AN INHIBITOR OF CCL2, MARKEDLY RAISED THE CRD THRESHOLD IN NCI RATS IN A DOSE- AND TIME-DEPENDENT MANNER. THESE DATA SUGGEST THAT NCI SUPPRESSES MIRNA-325-5P EXPRESSION AND ENHANCES CCL2 EXPRESSION, THUS CONTRIBUTING TO VISCERAL HYPERSENSITIVITY IN ADULT RATS.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
3  4025  30 LUNG CANCER AND CHRONIC OBSTRUCTIVE PULMONARY DISEASE: NEEDS AND OPPORTUNITIES FOR INTEGRATED RESEARCH. LUNG CANCER AND CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) ARE LEADING CAUSES OF MORBIDITY AND MORTALITY IN THE UNITED STATES AND WORLDWIDE. THEY SHARE A COMMON ENVIRONMENTAL RISK FACTOR IN CIGARETTE SMOKE EXPOSURE AND A GENETIC PREDISPOSITION REPRESENTED BY THE INCIDENCE OF THESE DISEASES IN ONLY A FRACTION OF SMOKERS. THE PRESENCE OF COPD INCREASES THE RISK OF LUNG CANCER UP TO 4.5-FOLD. TO INVESTIGATE COMMONALITIES IN DISEASE MECHANISMS AND PERSPECTIVES FOR DISEASE CHEMOPREVENTION, THE NATIONAL HEART, LUNG, AND BLOOD INSTITUTE (NHLBI) AND THE NATIONAL CANCER INSTITUTE (NCI) HELD A WORKSHOP. THE PARTICIPANTS IDENTIFIED FOUR RESEARCH OBJECTIVES: 1) CLARIFY COMMON EPIDEMIOLOGICAL CHARACTERISTICS OF LUNG CANCER AND COPD; 2) IDENTIFY SHARED GENETIC AND EPIGENETIC RISK FACTORS; 3) IDENTIFY AND VALIDATE BIOMARKERS, MOLECULAR SIGNATURES, AND IMAGING-DERIVED MEASUREMENTS OF EACH DISEASE; AND 4) DETERMINE COMMON AND DISPARATE PATHOGENETIC MECHANISMS. THESE OBJECTIVES SHOULD BE REACHED VIA FOUR RESEARCH APPROACHES: 1) IDENTIFY, PUBLICIZE, AND ENABLE THE EVALUATION AND ANALYSIS OF EXISTING DATASETS AND REPOSITORIES OF BIOSPECIMENS; 2) OBTAIN PHENOTYPIC AND OUTCOME DATA AND BIOSPECIMENS FROM LARGE STUDIES OF SUBJECTS WITH AND/OR AT RISK FOR COPD AND LUNG CANCER; 3) DEVELOP AND USE ANIMAL AND OTHER PRECLINICAL MODELS TO INVESTIGATE PATHOGENETIC LINKS BETWEEN THE DISEASES; AND 4) CONDUCT EARLY-PHASE CLINICAL TRIALS OF POTENTIAL CHEMOPREVENTIVE AGENTS. TO FOSTER MUCH NEEDED RESEARCH INTERACTIONS, TWO FINAL RECOMMENDATIONS WERE MADE BY THE PARTICIPANTS: 1) INCORPORATE BASELINE PHENOTYPING AND OUTCOME MEASURES FOR BOTH DISEASES IN FUTURE LONGITUDINAL STUDIES OF EACH DISEASE AND 2) EXPAND COLLABORATIVE EFFORTS BETWEEN THE NCI AND NHLBI.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
4  5935  22 TARGETING GATA1 AND P2X7R LOCUS BINDING IN SPINAL ASTROCYTES SUPPRESSES CHRONIC VISCERAL PAIN BY PROMOTING DNA DEMETHYLATION. IRRITABLE BOWEL SYNDROME IS A GASTROINTESTINAL DISORDER OF UNKNOWN ETIOLOGY CHARACTERIZED BY WIDESPREAD, CHRONIC ABDOMINAL PAIN ASSOCIATED WITH ALTERED BOWEL MOVEMENTS. INCREASING AMOUNTS OF EVIDENCE INDICATE THAT INJURY AND INFLAMMATION DURING THE NEONATAL PERIOD HAVE LONG-TERM EFFECTS ON TISSUE STRUCTURE AND FUNCTION IN THE ADULT THAT MAY PREDISPOSE TO GASTROINTESTINAL DISEASES. IN THIS STUDY WE AIMED TO INVESTIGATE HOW THE EPIGENETIC REGULATION OF DNA DEMETHYLATION OF THE P2X7R LOCUS GUIDED BY THE TRANSCRIPTION FACTOR GATA BINDING PROTEIN 1 (GATA1) IN SPINAL ASTROCYTES AFFECTS CHRONIC VISCERAL PAIN IN ADULT RATS WITH NEONATAL COLONIC INFLAMMATION (NCI). THE SPINAL GATA1 TARGETING TO DNA DEMETHYLATION OF P2X7R LOCUS IN THESE RATS WAS ASSESSED BY ASSESSING GATA1 FUNCTION WITH LUCIFERASE ASSAY, CHROMATIN IMMUNOPRECIPITATION, PATCH CLAMP, AND INTERFERENCE IN VITRO AND IN VIVO. IN ADDITION, A DECOY OLIGODEOXYNUCLEOTIDE WAS DESIGNED AND APPLIED TO DETERMINE THE INFLUENCE OF GATA1 ON THE DNA METHYLATION OF A P2X7R CPG ISLAND. WE SHOWED THAT NCI CAUSED THE INDUCTION OF GATA1, TEN-ELEVEN TRANSLOCATION 3 (TET3), AND PURINERGIC RECEPTORS (P2X7RS) IN ASTROCYTES OF THE SPINAL DORSAL HORN, AND DEMONSTRATED THAT INHIBITING THESE MOLECULES MARKEDLY INCREASED THE PAIN THRESHOLD, INHIBITED THE ACTIVATION OF ASTROCYTES, AND DECREASED THE SPINAL SEPSC FREQUENCY. NCI ALSO MARKEDLY DEMETHYLATED THE P2X7R LOCUS IN A MANNER DEPENDENT ON THE ENHANCEMENT OF BOTH A GATA1-TET3 PHYSICAL INTERACTION AND GATA1 BINDING AT THE P2X7R PROMOTER. IMPORTANTLY, WE SHOWED THAT DEMETHYLATION OF THE P2X7R LOCUS (AND THE ATTENDANT INCREASE IN P2X7R EXPRESSION) WAS REVERSED UPON KNOCKDOWN OF GATA1 OR TET3 EXPRESSION, AND DEMONSTRATED THAT A DECOY OLIGODEOXYNUCLEOTIDE THAT SELECTIVELY BLOCKED THE GATA1 BINDING SITE INCREASED THE METHYLATION OF A CPG ISLAND IN THE P2X7R PROMOTER. THESE RESULTS DEMONSTRATE THAT CHRONIC VISCERAL PAIN IS MEDIATED SYNERGISTICALLY BY GATA1 AND TET3 VIA A DNA-DEMETHYLATION MECHANISM THAT CONTROLS P2X7R TRANSCRIPTION IN SPINAL DORSAL HORN ASTROCYTES, AND PROVIDE A POTENTIAL THERAPEUTIC STRATEGY BY TARGETING GATA1 AND P2X7R LOCUS BINDING.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
5  2187  23 EPIGENETIC MECHANISMS UNDERLYING STRESS-INDUCED VISCERAL PAIN: RESILIENCE VERSUS VULNERABILITY IN A TWO-HIT MODEL OF EARLY LIFE STRESS AND CHRONIC ADULT STRESS. BACKGROUND: WOMEN WITH A HISTORY OF EARLY LIFE STRESS (ELS) HAVE A HIGHER RISK OF DEVELOPING IRRITABLE BOWEL SYNDROME (IBS). IN ADDITION, CHRONIC STRESS IN ADULTHOOD CAN EXACERBATE IBS SYMPTOMS SUCH AS ABDOMINAL PAIN DUE TO VISCERAL HYPERSENSITIVITY. WE PREVIOUSLY SHOWED THAT SEX AND THE PREDICTABILITY OF ELS DETERMINE WHETHER RATS DEVELOP VISCERAL HYPERSENSITIVITY IN ADULTHOOD. IN FEMALE RATS, UNPREDICTABLE ELS CONFERS VULNERABILITY AND RESULTS IN VISCERAL HYPERSENSITIVITY, WHEREAS PREDICTABLE ELS INDUCES RESILIENCE AND DOES NOT INDUCE VISCERAL HYPERSENSITIVITY IN ADULTHOOD. HOWEVER, THIS RESILIENCE IS LOST AFTER EXPOSURE TO CHRONIC STRESS IN ADULTHOOD LEADING TO AN EXACERBATION OF VISCERAL HYPERSENSITIVITY. EVIDENCE SUGGESTS THAT CHANGES IN HISTONE ACETYLATION AT THE PROMOTER REGIONS OF GLUCOCORTICOID RECEPTOR (GR) AND CORTICOTROPHIN-RELEASING FACTOR (CRF) IN THE CENTRAL NUCLEUS OF THE AMYGDALA (CEA) UNDERLIE STRESS-INDUCED VISCERAL HYPERSENSITIVITY. HERE, WE AIMED TO INVESTIGATE THE ROLE OF HISTONE ACETYLATION IN THE CEA ON VISCERAL HYPERSENSITIVITY IN A TWO-HIT MODEL OF ELS FOLLOWED BY CHRONIC STRESS IN ADULTHOOD. METHODS: MALE AND FEMALE NEONATAL RATS WERE EXPOSED TO UNPREDICTABLE, PREDICTABLE ELS, OR ODOR ONLY (NO STRESS CONTROL) FROM POSTNATAL DAYS 8 TO 12. IN ADULTHOOD, RATS UNDERWENT STEREOTAXIC IMPLANTATION OF INDWELLING CANNULAS. RATS WERE EXPOSED TO CHRONIC WATER AVOIDANCE STRESS (WAS, 1 H/DAY FOR 7 DAYS) OR SHAM STRESS AND RECEIVED INFUSIONS OF VEHICLE, THE HISTONE DEACETYLASE INHIBITOR TRICHOSTATIN A (TSA) OR THE HISTONE ACETYLTRANSFERASE INHIBITOR GARCINOL (GAR) AFTER EACH WAS SESSION. 24 H AFTER THE FINAL INFUSION, VISCERAL SENSITIVITY WAS ASSESSED AND THE CEA WAS REMOVED FOR MOLECULAR EXPERIMENTS. RESULTS: IN THE TWO-HIT MODEL (ELS + WAS), FEMALE RATS PREVIOUSLY EXPOSED TO PREDICTABLE ELS, SHOWED A SIGNIFICANT REDUCTION IN HISTONE 3 LYSINE 9 (H3K9) ACETYLATION AT THE GR PROMOTER AND A SIGNIFICANT INCREASE IN H3K9 ACETYLATION AT THE CRF PROMOTER. THESE EPIGENETIC CHANGES WERE ASSOCIATED WITH CHANGES IN GR AND CRF MRNA EXPRESSION IN THE CEA AND AN EXACERBATION OF STRESS-INDUCED VISCERAL HYPERSENSITIVITY IN FEMALE ANIMALS. TSA INFUSIONS IN THE CEA ATTENUATED THE EXACERBATED STRESS-INDUCED VISCERAL HYPERSENSITIVITY, WHEREAS GAR INFUSIONS ONLY PARTIALLY AMELIORATED ELS+WAS INDUCED VISCERAL HYPERSENSITIVITY. CONCLUSION: THE TWO-HIT MODEL OF ELS FOLLOWED BY WAS IN ADULTHOOD REVEALED THAT EPIGENETIC DYSREGULATION OCCURS AFTER EXPOSURE TO STRESS IN TWO IMPORTANT PERIODS OF LIFE AND CONTRIBUTES TO THE DEVELOPMENT OF VISCERAL HYPERSENSITIVITY. THESE ABERRANT UNDERLYING EPIGENETIC CHANGES MAY EXPLAIN THE EXACERBATION OF STRESS-INDUCED ABDOMINAL PAIN IN IBS PATIENTS.	2023	
                                                                                                                                                                                                                   
6  5651  13 SEX DIFFERENCES IN THE EPIGENETIC REGULATION OF CHRONIC VISCERAL PAIN FOLLOWING UNPREDICTABLE EARLY LIFE STRESS. BACKGROUND: WE PREVIOUSLY REPORTED THAT EARLY LIFE STRESS (ELS) DYSREGULATED GLUCOCORTICOID RECEPTOR (GR) AND CORTICOTROPHIN-RELEASING HORMONE (CRH) EXPRESSION IN THE CENTRAL NUCLEUS OF THE AMYGDALA (CEA). EPIGENETIC MODIFICATIONS SERVE AS MEMORIES OF ADVERSE EVENTS THAT OCCURRED DURING EARLY LIFE. THEREFORE, WE HYPOTHESIZED THAT EPIGENETIC MECHANISMS ALTER GR AND CRH EXPRESSION IN THE CEA AND UNDERLIE CHRONIC VISCERAL PAIN AFTER ELS. METHODS: NEONATAL RATS WERE EXPOSED TO UNPREDICTABLE, PREDICTABLE ELS, OR ODOR ONLY (NO STRESS CONTROL) FROM POSTNATAL DAYS 8 TO 12. IN ADULTHOOD, VISCERAL SENSITIVITY WAS ASSESSED OR THE CEA WAS ISOLATED FOR WESTERN BLOT OR CHIP-QPCR TO STUDY HISTONE MODIFICATIONS AT THE GR AND CRH PROMOTERS. FEMALE ADULT RATS UNDERWENT STEREOTAXIC IMPLANTATION OF INDWELLING CANNULAS FOR MICROINJECTIONS OF GARCINOL (HAT INHIBITOR) INTO THE CEA. AFTER 7 DAYS OF MICROINJECTIONS, VISCERAL SENSITIVITY WAS ASSESSED OR THE CEA WAS ISOLATED FOR CHIP-QPCR ASSAYS. RESULTS: UNPREDICTABLE ELS INCREASED VISCERAL SENSITIVITY IN ADULT FEMALE RATS, BUT NOT IN MALE COUNTERPARTS. ELS INCREASED HISTONE 3 LYSINE 9 (H3K9) ACETYLATION IN THE CEA AND H3K9 ACETYLATION LEVELS AT THE GR PROMOTER IN THE CEA OF ADULT FEMALE RATS. AFTER UNPREDICTABLE ELS, H3K9 ACETYLATION WAS INCREASED AND GR BINDING WAS DECREASED AT THE CRH PROMOTER. ADMINISTRATION OF GARCINOL IN THE CEA OF ADULT FEMALES, THAT UNDERWENT UNPREDICTABLE ELS, NORMALIZED H3K9 ACETYLATION AND RESTORED GR BINDING AT THE CRH PROMOTER. CONCLUSION: DYSREGULATED HISTONE ACETYLATION AND GR BINDING AT THE CRH PROMOTER IN THE CEA ARE AN IMPORTANT MECHANISM FOR "MEMORIZING" ELS EVENTS MEDIATING VISCERAL PAIN IN ADULTHOOD.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
7  5402  20 REDUCTION OF SIRT1-MEDIATED EPIGENETIC UPREGULATION OF NAV1.7 CONTRIBUTES TO OXALIPLATIN-INDUCED NEUROPATHIC PAIN. BACKGROUND: CLINICALLY, NEUROPATHIC PAIN IS A SEVERE SIDE EFFECT OF OXALIPLATIN CHEMOTHERAPY, WHICH USUALLY LEADS TO DOSE REDUCTION OR CESSATION OF TREATMENT. DUE TO THE UNAWARENESS OF DETAILED MECHANISMS OF OXALIPLATIN-INDUCED NEUROPATHIC PAIN, IT IS DIFFICULT TO DEVELOP AN EFFECTIVE THERAPY AND LIMITS ITS CLINICAL USE. OBJECTIVES: THE AIM OF THE PRESENT STUDY WAS TO IDENTIFY THE ROLE OF SIRTUIN 1 (SIRT1) REDUCTION IN EPIGENETIC REGULATION OF THE EXPRESSION OF VOLTAGE-GATED SODIUM CHANNELS 1.7 (NAV1.7) IN THE DORSAL ROOT GANGLION (DRG) DURING OXALIPLATIN-INDUCED NEUROPATHIC PAIN. STUDY DESIGN: CONTROLLED ANIMAL STUDY. SETTING: UNIVERSITY LABORATORY. METHODS: THE VON FREY TEST WAS PERFORMED TO EVALUATE PAIN BEHAVIOR IN RATS. REAL-TIME QUANTITATIVE POLYMERASE CHAIN REACTION, WESTERN BLOTTING, ELECTROPHYSIOLOGICAL RECORDING, CHROMATIN IMMUNOPRECIPITATION, AND SMALL INTERFERING RNA (SIRNA) WERE USED TO ILLUSTRATE THE MECHANISMS. RESULTS: IN THE PRESENT STUDY, WE FOUND THAT BOTH THE ACTIVITY AND EXPRESSION OF SIRT1 WERE SIGNIFICANTLY DECREASED IN RAT DRG FOLLOWING OXALIPLATIN TREATMENT. THE ACTIVATOR OF SIRT1, RESVERATROL, NOT ONLY INCREASED THE ACTIVITY AND EXPRESSION OF SIRT1, BUT ALSO ATTENUATED THE MECHANICAL ALLODYNIA FOLLOWING OXALIPLATIN TREATMENT. IN ADDITION, LOCAL KNOCKDOWN OF SIRT1 BY INTRATHECAL INJECTION OF SIRT1 SIRNA CAUSED MECHANICAL ALLODYNIA IN NAIVE RATS. BESIDES, OXALIPLATIN TREATMENT ENHANCED THE ACTION POTENTIAL FIRING FREQUENCY OF DRG NEURONS AND THE EXPRESSION OF NAV1.7 IN DRG AND ACTIVATION OF SIRT1 BY RESVERATROL REVERSED THIS EFFECT. FURTHERMORE, BLOCKING NAV1.7 BY PROTX II (A SELECTIVE NAV1.7 CHANNEL BLOCKER) REVERSED OXALIPLATIN-INDUCED MECHANICAL ALLODYNIA. IN ADDITION, HISTONE H3 HYPERACETYLATION AT THE NAV1.7 PROMOTER IN DRG OF RATS FOLLOWING OXALIPLATIN TREATMENT WAS SIGNIFICANTLY SUPPRESSED BY ACTIVATION OF SIRT1 WITH RESVERATROL. MOREOVER, BOTH THE EXPRESSION OF NAV1.7 AND HISTONE H3 ACETYLATION AT THE NAV1.7 PROMOTER WERE UPREGULATED IN THE DRG BY LOCAL KNOCKDOWN OF SIRT1 WITH SIRT1 SIRNA IN NAIVE RATS. LIMITATIONS: MORE UNDERLYING MECHANISM(S) OF SIRT1 REDUCTION AFTER OXALIPLATIN TREATMENT NEEDS TO BE EXPLORED IN FUTURE RESEARCH. CONCLUSIONS: THESE FINDINGS SUGGEST THAT REDUCTION OF SIRT1-MEDIATED EPIGENETIC UPREGULATION OF NAV1.7 IN THE DRG CONTRIBUTES TO THE DEVELOPMENT OF OXALIPLATIN-INDUCED NEUROPATHIC PAIN IN RATS. THE INTRATHECAL DRUG DELIVERY TREATMENT OF ACTIVATING SIRT1 MIGHT BE A NOVEL THERAPEUTIC OPTION FOR OXALIPLATIN-INDUCED NEUROPATHIC PAIN.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                            
8  5224  35 PRIORITIZED RESEARCH FOR THE PREVENTION, TREATMENT, AND REVERSAL OF CHRONIC DISEASE: RECOMMENDATIONS FROM THE LIFESTYLE MEDICINE RESEARCH SUMMIT. DECLINING LIFE EXPECTANCY AND INCREASING ALL-CAUSE MORTALITY IN THE UNITED STATES HAVE BEEN ASSOCIATED WITH UNHEALTHY BEHAVIORS, SOCIOECOLOGICAL FACTORS, AND PREVENTABLE DISEASE. A GROWING BODY OF BASIC SCIENCE, CLINICAL RESEARCH, AND POPULATION HEALTH EVIDENCE POINTS TO THE BENEFITS OF HEALTHY BEHAVIORS, ENVIRONMENTS AND POLICIES TO MAINTAIN HEALTH AND PREVENT, TREAT, AND REVERSE THE ROOT CAUSES OF COMMON CHRONIC DISEASES. SIMILARLY, INNOVATIONS IN RESEARCH METHODOLOGIES, STANDARDS OF EVIDENCE, EMERGENCE OF UNIQUE STUDY COHORTS, AND BREAKTHROUGHS IN DATA ANALYTICS AND MODELING CREATE NEW POSSIBILITIES FOR PRODUCING BIOMEDICAL KNOWLEDGE AND CLINICAL TRANSLATION. TO UNDERSTAND THESE ADVANCES AND INFORM FUTURE DIRECTIONS RESEARCH, THE LIFESTYLE MEDICINE RESEARCH SUMMIT WAS CONVENED AT THE UNIVERSITY OF PITTSBURGH ON DECEMBER 4-5, 2019. THE SUMMIT'S GOAL WAS TO REVIEW CURRENT STATUS AND DEFINE RESEARCH PRIORITIES IN THE SIX CORE AREAS OF LIFESTYLE MEDICINE: PLANT-PREDOMINANT NUTRITION, PHYSICAL ACTIVITY, SLEEP, STRESS, ADDICTIVE BEHAVIORS, AND POSITIVE PSYCHOLOGY/SOCIAL CONNECTION. FORTY INVITED SUBJECT MATTER EXPERTS (1) REVIEWED EXISTING KNOWLEDGE AND GAPS RELATING LIFESTYLE BEHAVIORS TO COMMON CHRONIC DISEASES, SUCH AS CARDIOVASCULAR DISEASE, DIABETES, MANY CANCERS, INFLAMMATORY- AND IMMUNE-RELATED DISORDERS AND OTHER CONDITIONS; AND (2) DISCUSSED THE POTENTIAL FOR APPLYING CUTTING-EDGE MOLECULAR, CELLULAR, EPIGENETIC AND EMERGING SCIENCE KNOWLEDGE AND COMPUTATIONAL METHODOLOGIES, RESEARCH DESIGNS, AND STUDY COHORTS TO ACCELERATE CLINICAL APPLICATIONS ACROSS ALL SIX DOMAINS OF LIFESTYLE MEDICINE. NOTABLY, FEDERAL HEALTH AGENCIES, SUCH AS THE DEPARTMENT OF DEFENSE AND VETERANS ADMINISTRATION HAVE BEGUN TO ADOPT "WHOLE-PERSON HEALTH AND PERFORMANCE" MODELS THAT ADDRESS THESE LIFESTYLE AND ENVIRONMENTAL ROOT CAUSES OF CHRONIC DISEASE AND ASSOCIATED MORBIDITY, MORTALITY, AND COST. RECOMMENDATIONS STRONGLY SUPPORT LEVERAGING EMERGING RESEARCH METHODOLOGIES, SYSTEMS BIOLOGY, AND COMPUTATIONAL MODELING IN ORDER TO ACCELERATE EFFECTIVE CLINICAL AND POPULATION SOLUTIONS TO IMPROVE HEALTH AND REDUCE SOCIETAL COSTS. NEW AND ALTERNATIVE HIERARCHIES OF EVIDENCE ARE ALSO BE NEEDED IN ORDER TO ASSESS THE QUALITY OF EVIDENCE AND DEVELOP EVIDENCE-BASED GUIDELINES ON LIFESTYLE MEDICINE. CHILDREN AND UNDERSERVED POPULATIONS WERE IDENTIFIED AS PRIORITIZED GROUPS TO STUDY. THE COVID-19 PANDEMIC, WHICH DISPROPORTIONATELY IMPACTS PEOPLE WITH CHRONIC DISEASES THAT ARE AMENABLE TO EFFECTIVE LIFESTYLE MEDICINE INTERVENTIONS, MAKES THE SUMMIT'S FINDINGS AND RECOMMENDATIONS FOR FUTURE RESEARCH PARTICULARLY TIMELY AND RELEVANT.	2020	
                                                                                                                                                                                                                                                                                                           
9  3600  19 IMPORTANCE OF EPIGENETIC MECHANISMS IN VISCERAL PAIN INDUCED BY CHRONIC WATER AVOIDANCE STRESS. EPIGENETIC MOLECULAR MECHANISMS, WHICH INCLUDE DNA METHYLATION AND HISTONE DEACETYLATION, ARE IMPLICATED IN THE DYSREGULATION OF THE HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) AXIS. PREVIOUSLY, WE DEMONSTRATED THAT REPEATED WATER AVOIDANCE STRESS (WAS), A VALIDATED MODEL OF CHRONIC PSYCHOLOGICAL STRESS, INDUCES HEIGHTENED VISCERAL PAIN BEHAVIORS IN RODENTS THAT RESEMBLE IRRITABLE BOWEL SYNDROME (IBS) SEQUELAE. HOWEVER, THE INVOLVEMENT OF EPIGENETIC MOLECULAR MECHANISMS IN THE PATHOPHYSIOLOGY OF STRESS-INDUCED VISCERAL PAIN HAS NOT BEEN EXPLORED. OUR HYPOTHESIS IS THAT EPIGENETIC MECHANISMS WITHIN THE CENTRAL NERVOUS SYSTEM (CNS) ARE IMPORTANT TO CHRONIC STRESS-INDUCED VISCERAL HYPERSENSITIVITY. ADULT MALE F-344 RATS WITH INTRACEREBROVENTRICULAR (I.C.V.) CANNULAE WERE EXPOSED TO 7 DAYS OF REPEATED WAS. CONTROLS RECEIVED A SHAM STRESS. FOLLOWING THE DAILY 1H STRESSOR, TRICHOSTATIN A (TSA; 100 NG/ML), A POTENT HISTONE DEACETYLASE INHIBITOR, OR VEHICLE (VEH; 0.1% DMSO/SALINE,) AS CONTROL WAS ADMINISTERED VIA THE I.C.V. CANNULA. VISCERAL SENSITIVITY WAS ASSESSED 24H AFTER THE FINAL WAS AND QUANTIFIED THE VISCEROMOTOR RESPONSE (VMR) BY RECORDING THE NUMBER OF ABDOMINAL CONTRACTIONS IN RESPONSE TO GRADED PRESSURES (20-60 MMHG) OF COLORECTAL DISTENSIONS (CRD). FROM A SEPARATE GROUP OF RATS THAT WERE EXPOSED TO REPEATED WAS OR SHAM STRESS, THE AMYGDALA WAS ISOLATED TO ASSESS THE METHYLATION STATUS OF GLUCOCORTICOID RECEPTOR (GR) AND CORTICOTROPIN RELEASING-FACTOR (CRF) GENES VIA BISULFITE SEQUENCING AND VERIFIED BY PYROSEQUENCING. GR AND CRF GENE EXPRESSION WAS QUANTIFIED VIA QRT-PCR. STRESSED RATS EXHIBITED VISCERAL HYPERSENSITIVITY THAT WAS SIGNIFICANTLY ATTENUATED BY TSA. COMPARED TO SHAM CONTROLS, METHYLATION OF THE GR GENE WAS INCREASED FOLLOWING WAS WHILE EXPRESSION OF THE GR GENE WAS DECREASED. METHYLATION OF THE CRF PROMOTER WAS DECREASED WITH WAS WITH A CONCOMITANT INCREASE IN CRF EXPRESSION. THIS STUDY DEMONSTRATES THE INVOLVEMENT OF CENTRAL EPIGENETIC MECHANISMS IN REGULATING STRESS-INDUCED VISCERAL HYPERSENSITIVITY AND PROVIDES A FOUNDATION FOR EXPLORING THE EPIGENETIC MECHANISMS THAT MAY CONTRIBUTE TO IBS-LIKE SYMPTOMATOLOGY.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
10  1920  22 ENVIRONMENTAL ENRICHMENT PREVENTS STRESS-INDUCED EPIGENETIC CHANGES IN THE EXPRESSION OF GLUCOCORTICOID RECEPTOR AND CORTICOTROPHIN RELEASING HORMONE IN THE CENTRAL NUCLEUS OF THE AMYGDALA TO INHIBIT VISCERAL HYPERSENSITIVITY. INTRODUCTION: STRESS IS A KNOWN TRIGGER FOR THE SYMPTOMS OF IRRITABLE BOWEL SYNDROME (IBS), A GASTROINTESTINAL (GI) DISORDER THAT PRESENTS WITH ABNORMAL BOWEL HABITS AND ABDOMINAL PAIN DUE TO VISCERAL HYPERSENSITIVITY. WHILE BEHAVIORAL THERAPIES HAVE BEEN USED TO ATTENUATE IBS SYMPTOMS, THE UNDERLYING MECHANISMS BY WHICH THESE THERAPIES INTERACT WITH STRESS-INDUCED PATHOLOGY REMAINS TO BE DELINEATED. HERE WE USE A RAT MODEL TO TEST THE HYPOTHESIS THAT EXPOSURE TO ENVIRONMENTAL ENRICHMENT (EE) INHIBITS STRESS-INDUCED CHANGES WITHIN THE BRAIN-GUT AXIS TO PREVENT VISCERAL AND SOMATIC HYPERSENSITIVITY AND COLONIC HYPERPERMEABILITY. METHODS: FEMALE RATS (N = 8/GROUP) WERE HOUSED IN EE ONE WEEK BEFORE AND ONE WEEK DURING EXPOSURE TO WATER AVOIDANCE STRESS (WAS) WHILE CONTROLS WERE HOUSED IN STANDARD CAGES (SH). ONE DAY AFTER THE FINAL WAS EXPOSURE, COLONIC AND SOMATIC SENSITIVITY WERE ASSESSED BY THE VISCEROMOTOR RESPONSE (VMR) TO COLORECTAL DISTENSION (CRD) AND WITHDRAWAL THRESHOLD ELICITED BY AN ELECTRONIC VON FREY ON THE HIND PAW OF THE RATS RESPECTIVELY. ALL RATS WERE RETURNED TO SH FOR 3 WEEKS BEFORE COLONIC AND SOMATIC SENSITIVITY WERE REASSESSED ON DAY 28. THE RATS WERE THEN IMMEDIATELY EUTHANIZED AND THE SPINAL CORD WAS COLLECTED TO ASSESS CHANGES IN NEURONAL ACTIVATION (ASSESSED VIA ERK PHOSPHORYLATION) IN RESPONSE TO NOXIOUS CRD. A SEPARATE COHORT OF ANIMALS (N = 8/GROUP) THAT DID NOT UNDERGO BEHAVIORAL ASSESSMENTS WAS EUTHANIZED THE DAY AFTER THE FINAL WAS EXPOSURE AND THE CENTRAL NUCLEUS OF THE AMYGDALA (CEA) WAS COLLECTED TO INVESTIGATE WAS AND EE INDUCED EPIGENETIC CHANGES AT THE GLUCOCORTICOID RECEPTOR (GR) AND CORTICOTROPHIN RELEASING HORMONE (CRH) PROMOTER. THE COLON FROM THESE RATS WAS ALSO COLLECTED TO ASSESS COLONIC PERMEABILITY VIA CHANGES IN TRANSEPITHELIAL ELECTRICAL RESISTANCE (TEER) IN VITRO. RESULTS: EXPOSURE TO STRESS PERSISTENTLY INCREASED VMR TO CRD (P < 0.01) AND DECREASED THE HIND PAW WITHDRAWAL THRESHOLD (P < 0.001) IN FEMALE RATS. WAS ALSO DECREASED TEER IN THE COLON TISSUE OF FEMALE RATS (P = 0.05). IN THE CEA, WAS INDUCED A DECREASE IN HISTONE ACETYLATION AT THE GR PROMOTER BUT INCREASED HISTONE ACETYLATION AT THE CRH PROMOTER AND REDUCED GR-CRH INTERACTIONS IN THE CEA. ANALYSIS OF THE SPINAL CORD SHOWED THAT WAS INCREASED CRD-EVOKED ERK PHOSPHORYLATION IN THE DORSAL HORN. EXPOSURE TO EE PREVENTED WAS-INDUCED CHANGES IN THE CEA, DORSAL HORN AND COLON RESPECTIVELY TO PREVENT VISCERAL AND SOMATIC HYPERSENSITIVITY. CONCLUSION: OUR DATA REVEALS THAT BEHAVIORAL THERAPIES CAN PRODUCE LONG LASTING MOLECULAR AND EPIGENETIC CHANGES THAT CAN PREVENT STRESS-INDUCED PATHOLOGIES EVEN AFTER COMPLETION OF THE THERAPY. THESE RESULTS HIGHLIGHT THE POTENTIAL MECHANISMS BY WHICH BEHAVIORAL THERAPIES MAY AMELIORATE VISCERAL PAIN ASSOCIATED STRESS-RELATED PATHOLOGIES SUCH AS THE IRRITABLE BOWEL SYNDROME.	2021	

11  1253  27 CURRENT PROBLEMS AND FUTURE DIRECTIONS OF TRANSFUSION-INDUCED ALLOIMMUNIZATION: SUMMARY OF AN NHLBI WORKING GROUP. IN APRIL 2010, A WORKING GROUP SPONSORED BY THE NATIONAL HEART, LUNG, AND BLOOD INSTITUTE WAS ASSEMBLED TO IDENTIFY RESEARCH STRATEGIES TO IMPROVE OUR UNDERSTANDING OF ALLOIMMUNIZATION CAUSED BY THE TRANSFUSION OF ALLOGENEIC BLOOD COMPONENTS AND TO EVALUATE POTENTIAL APPROACHES TO BOTH REDUCE ITS OCCURRENCE AND MANAGE ITS EFFECTS. SIGNIFICANT SEQUELAE OF ALLOIMMUNIZATION WERE DISCUSSED AND IDENTIFIED, INCLUDING DIFFICULTIES IN MAINTAINING CHRONIC TRANSFUSION OF RED BLOOD CELLS AND PLATELETS, HEMOLYTIC DISEASE OF THE NEWBORN, NEONATAL ALLOIMMUNE THROMBOCYTOPENIA, AND REJECTION OF TRANSPLANTED CELLS AND TISSUES. THE DISCUSSIONS RESULTED IN A CONSENSUS THAT IDENTIFIED KEY AREAS OF FUTURE RESEARCH AND DEVELOPMENTAL AREAS, INCLUDING GENETIC AND EPIGENETIC RECIPIENT FACTORS THAT REGULATE ALLOIMMUNIZATION, BIOCHEMICAL SPECIFICS OF TRANSFUSED PRODUCTS THAT AFFECT ALLOIMMUNIZATION, AND NOVEL TECHNOLOGIES FOR HIGH-THROUGHPUT GENOTYPING TO FACILITATE EXTENSIVE AND EFFICIENT ANTIGEN MATCHING BETWEEN DONOR AND RECIPIENT. ADDITIONAL AREAS OF IMPORTANCE INCLUDED ANALYSIS OF UNAPPRECIATED MEDICAL SEQUELAE OF ALLOIMMUNIZATION, SUCH AS CELLULAR IMMUNITY AND ITS EFFECT UPON TRANSPLANT AND AUTOIMMUNITY. IN ADDITION, SUPPORT FOR RESEARCH INFRASTRUCTURE WAS DISCUSSED, WITH AN EMPHASIS ON ENCOURAGING COLLABORATION AND SYNERGY OF ANIMAL MODELS BIOLOGY AND HUMAN CLINICAL RESEARCH. FINALLY, TRAINING FUTURE INVESTIGATORS WAS IDENTIFIED AS AN AREA OF IMPORTANCE. IN AGGREGATE, THIS COMMUNICATION PROVIDES A SYNOPSIS OF THE OPINIONS OF THE WORKING GROUP ON THE ABOVE ISSUES AND PRESENTS BOTH A LIST OF SUGGESTED PRIORITIES AND THE RATIONALE FOR THE TOPICS OF FOCUS. THE AREAS OF RESEARCH IDENTIFIED IN THIS REPORT REPRESENT POTENTIAL FERTILE GROUND FOR THE MEDICAL ADVANCEMENT OF PREVENTING AND MANAGING ALLOIMMUNIZATION IN ITS DIFFERENT FORMS AND MITIGATING THE CLINICAL PROBLEMS IT PRESENTS TO MULTIPLE PATIENT POPULATIONS.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
12  2745  17 EXPRESS: HISTONE HYPERACETYLATION MODULATES SPINAL TYPE II METABOTROPIC GLUTAMATE RECEPTOR ALLEVIATING STRESS-INDUCED VISCERAL HYPERSENSITIVITY IN FEMALE RATS. STRESS IS OFTEN A TRIGGER TO EXACERBATE CHRONIC PAIN INCLUDING VISCERAL HYPERSENSITIVITY ASSOCIATED WITH IRRITABLE BOWEL SYNDROME, A FEMALE PREDOMINANT FUNCTIONAL BOWEL DISORDER. EPIGENETIC MECHANISMS THAT MEDIATE STRESS RESPONSES ARE A POTENTIAL TARGET TO INTERFERE WITH VISCERAL PAIN. THE PURPOSE OF THIS STUDY WAS TO EXAMINE THE EFFECT OF A HISTONE DEACETYLASE INHIBITOR, SUBEROYLANILIDE HYDROXAMIC ACID, ON VISCERAL HYPERSENSITIVITY INDUCED BY A SUBCHRONIC STRESSOR IN FEMALE RATS AND TO INVESTIGATE THE INVOLVEMENT OF SPINAL GLUTAMATE RECEPTORS. THREE DAILY SESSIONS OF FORCED SWIM INDUCED VISCERAL HYPERSENSITIVITY. INTRATHECAL SUBEROYLANILIDE HYDROXAMIC ACID PREVENTED OR REVERSED THE STRESS-INDUCED VISCERAL HYPERSENSITIVITY, INCREASED SPINAL HISTONE 3 ACETYLATION AND INCREASED MGLUR2 AND MGLUR3 EXPRESSION. CHROMATIN IMMUNOPRECIPITATION (CHIP) ANALYSIS REVEALED ENRICHMENT OF H3K9AC AND H3K18AC AT SEVERAL PROMOTER GRM2 AND GRM3 REGIONS. THE MGLUR2/3 ANTAGONIST LY341495 REVERSED THE INHIBITORY EFFECT OF SUBEROYLANILIDE HYDROXAMIC ACID ON THE STRESS-INDUCED VISCERAL HYPERSENSITIVITY. IN SURPRISING CONTRAST, STRESS AND/OR SUBEROYLANILIDE HYDROXAMIC ACID HAD NO EFFECT ON SPINAL NMDA RECEPTOR EXPRESSION OR FUNCTION. THESE DATA REVEAL HISTONE MODIFICATION MODULATES MGLUR2/3 EXPRESSION IN THE SPINAL CORD TO ATTENUATE STRESSINDUCED VISCERAL HYPERSENSITIVITY. HDAC INHIBITORS MAY PROVIDE A POTENTIAL APPROACH TO RELIEVE VISCERAL HYPERSENSITIVITY ASSOCIATED WITH IRRITABLE BOWEL SYNDROME.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
13  5559  16 ROLE OF HIPPOCAMPAL CIRCKCNK9 IN VISCERAL HYPERSENSITIVITY AND ANXIETY COMORBIDITY OF IRRITABLE BOWEL SYNDROME. IRRITABLE BOWEL SYNDROME (IBS) IS A COMMON GASTROINTESTINAL DISORDER CHARACTERIZED BY RECURRENT VISCERAL PAIN AND ALTERED BOWEL HABITS (DIARRHEA OR CONSTIPATION). HOWEVER, THE MOLECULAR AND PATHOLOGICAL MECHANISMS ARE POORLY UNDERSTOOD. THIS STUDY FOUND NEONATAL COLORECTAL DISTENSION TO INDUCE VISCERAL HYPERSENSITIVITY AND ANXIETY. THE EXPRESSION OF HIPPOCAMPAL CIRCKCNK9, A NOVEL CIRCRNA, WAS SIGNIFICANTLY INCREASED IN IBS-LIKE RATS. INTERESTINGLY, CA1 SHCIRCKCNK9 TREATMENT INHIBITED LONG-TERM POTENTIATION (LTP) AND ALLEVIATED VISCERAL HYPERSENSITIVITY AND ANXIETY IN IBS-LIKE RATS, WHEREAS OVEREXPRESSION OF CA1 CIRCKCNK9 INDUCED LTP, VISCERAL HYPERSENSITIVITY, AND ANXIETY IN CONTROLS. SEVERAL EXPERIMENTS INDICATED THAT INCREASED CA1 CIRCKCNK9 ACTED AS A MIR-124-3P SPONGE, WHICH RESULTED IN THE INHIBITORY EFFECT OF MIR-124-3P ON GENE SILENCING. THERE WAS A NEGATIVE CORRELATION BETWEEN CIRCKCNK9 AND MIR-124-3P EXPRESSION. AS EXPECTED, CA1 ADMINISTRATION OF AGOMIR-124-3P DECREASED CA1 LTP, VISCERAL HYPERSENSITIVITY, AND ANXIETY IN THE IBS-LIKE RATS. IN CONTRAST, CA1 TREATMENT WITH ANTAGOMIR-124-3P INDUCED LTP, VISCERAL HYPERSENSITIVITY, AND ANXIETY IN THE CONTROLS. FURTHERMORE, BIOINFORMATIC ANALYSIS AND EXPERIMENTAL DATA SHOWED THAT EZH2 IS A CIRCKCNK9/MIR-124-3P TARGET GENE, AND INCREASED EZH2 EXPRESSION WAS INVOLVED IN VISCERAL HYPERSENSITIVITY AND ANXIETY IN IBS-LIKE RATS BY ENHANCING HIPPOCAMPAL SYNAPTIC PLASTICITY. IN CONCLUSION, EARLY LIFE STRESS INDUCES INCREASED EXPRESSION OF CIRCKCNK9 IN THE CA1 OF IBS-LIKE RATS. INCREASED CIRCKCNK9 EXPRESSION REGULATES SYNAPTIC TRANSMISSION AND ENHANCES LTP, LEADING TO VISCERAL HYPERSENSITIVITY AND ANXIETY IN IBS-LIKE RATS. THE UNDERLYING CIRCKCNK9 SIGNALING PATHWAY IS MIR124-3P/EZH2. INCREASED CIRCKCNK9 REINFORCES ITS SPONGING OF MIR124-3P AND STRONGLY SUPPRESSES MIR124-3P ACTIVITY, RESULTING IN INCREASED EXPRESSION OF THE TARGET GENE EZH2. THIS STUDY PROVIDES A NEW EPIGENETIC MECHANISM FOR VISCERAL HYPERSENSITIVITY AND ANXIETY IN IBS-LIKE RATS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
14  2272  14 EPIGENETIC REDUCTION OF MIR-214-3P UPREGULATES ASTROCYTIC COLONY-STIMULATING FACTOR-1 AND CONTRIBUTES TO NEUROPATHIC PAIN INDUCED BY NERVE INJURY. EMERGING EVIDENCE HAS INDICATED THAT COLONY-STIMULATING FACTOR-1 (CSF1) MODULATES NEUROINFLAMMATION IN THE CENTRAL NERVOUS SYSTEM AND THE DEVELOPMENT OF NEUROPATHIC PAIN, WHILE THE UNDERLYING MECHANISM REMAINS UNKNOWN. HERE, WE IDENTIFIED THE INCREASED EXPRESSION OF CSF1 DERIVED FROM ACTIVATED ASTROCYTES IN THE IPSILATERAL DORSAL HORN IN RATS WITH SPINAL NERVE LIGATION (SNL). SUPPRESSION OF CSF1 EXPRESSION ALLEVIATED NEUROINFLAMMATION, NEURONAL HYPEREXCITABILITY, AND GLUTAMATERGIC RECEPTOR SUBUNIT UPREGULATION IN THE DORSAL HORN AND IMPROVED SNL-INDUCED PAIN BEHAVIOR. WE ALSO FOUND REDUCED MIR-214-3P EXPRESSION IN THE IPSILATERAL DORSAL HORN FOLLOWING AN SNL PROCEDURE; MIR-214-3P DIRECTLY BOUND TO THE 3'-UTR OF CSF1 MRNA AND NEGATIVELY REGULATED CSF1 EXPRESSION. INTRATHECAL DELIVERY OF MIR-214-3P MIMIC REVERSED THE ENHANCED EXPRESSION OF CSF1 AND ASTROCYTE OVERACTIVITY AND ALLEVIATED THE IL-6 UPREGULATION AND PAIN BEHAVIOR INDUCED BY SNL. MOREOVER, SUPPRESSION OF SPINAL MIR-214-3P INCREASED ASTROCYTE REACTIVITY, PROMOTED CSF1 AND IL-6 PRODUCTION, AND INDUCED PAIN HYPERSENSITIVITY IN NAIVE ANIMALS. FURTHERMORE, SNL INDUCED THE EXPRESSION OF DNA METHYLTRANSFERASE 3A (DNMT3A) THAT WAS ASSOCIATED WITH THE HYPERMETHYLATION OF THE MIR-214-3P PROMOTER, LEADING TO REDUCED MIR-214-3P EXPRESSION IN THE MODEL RODENTS. TREATMENT WITH THE DNMT INHIBITOR ZEBULARINE SIGNIFICANTLY REDUCED CYTOSINE METHYLATION IN THE MIR-214-3P PROMOTER; THIS REDUCED METHYLATION CONSEQUENTLY INCREASED THE EXPRESSION OF MIR-214-3P AND DECREASED THE CONTENT OF CSF1 IN THE IPSILATERAL DORSAL HORN AND, FURTHER, ATTENUATED IL-6 PRODUCTION AND PAIN BEHAVIOR IN RATS WITH SNL. TOGETHER, OUR DATA INDICATE THAT THE DNMT3A-MEDIATED EPIGENETIC SUPPRESSION OF MIR-214-3P ENHANCED CSF1 PRODUCTION IN ASTROCYTES, WHICH SUBSEQUENTLY INDUCED NEUROINFLAMMATION AND PAIN BEHAVIOR IN SNL MODEL RATS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
15  3797  19 INTERNATIONAL BREAST CANCER AND NUTRITION: A MODEL FOR RESEARCH, TRAINING AND POLICY IN DIET, EPIGENETICS, AND CHRONIC DISEASE PREVENTION. THIS ARTICLE SUMMARIZES PRESENTATIONS FROM THE INTERNATIONAL BREAST CANCER AND NUTRITION WORKSHOP HELD DURING THE ASN SCIENTIFIC SESSIONS AND ANNUAL MEETING AT EXPERIMENTAL BIOLOGY 2014 IN SAN DIEGO, CA, ON 28 APRIL 2014. AN INTERNATIONAL COLLABORATION WAS DESCRIBED AMONG TEAMS FROM LOW-, MIDDLE-, AND HIGH-INCOME COUNTRIES ADDRESSING ENVIRONMENTAL FACTORS, ESPECIALLY DIET, AND EPIGENETIC INTERACTIONS THAT AFFECT THE RISK OF CHRONIC DISEASE. SPEAKERS ADDRESSED OPPORTUNITIES AND CHALLENGES INVOLVED IN THIS TYPE OF INTERNATIONAL COLLABORATION, ASSESSING DIET AND NUTRITIONAL STATUS ACROSS A WIDE RANGE OF CULTURES, AND RESEARCH TOOLS AND DISCOVERIES FROM THIS GROUP.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
16  2353  19 EPIGENETIC REGULATION OF OPIOID-INDUCED HYPERALGESIA, DEPENDENCE, AND TOLERANCE IN MICE. REPEATED ADMINISTRATION OF OPIOIDS SUCH AS MORPHINE INDUCES PERSISTENT BEHAVIORAL CHANGES INCLUDING OPIOID-INDUCED HYPERALGESIA (OIH), TOLERANCE, AND PHYSICAL DEPENDENCE. IN THE CURRENT WORK WE EXPLORED HOW THE BALANCE OF HISTONE ACETYLTRANSFERASE (HAT) VERSUS HISTONE DEACETYLASE (HDAC) MIGHT REGULATE THESE MORPHINE-INDUCED CHANGES. NOCICEPTIVE THRESHOLDS, ANALGESIA, AND PHYSICAL DEPENDENCE WERE ASSESSED DURING AND FOR A PERIOD OF SEVERAL WEEKS AFTER MORPHINE EXPOSURE. TO PROBE THE ROLES OF HISTONE ACETYLATION, THE HAT INHIBITOR CURCUMIN OR A SELECTIVE HDAC INHIBITOR SUBEROYLANILIDE HYDROXAMIC ACID (SAHA) WAS ADMINISTERED DAILY TO GROUPS OF ANIMALS. HISTONE ACETYLATION IN SPINAL CORD WAS ASSESSED BY WESTERN BLOT AND IMMUNOHISTOCHEMISTRY. CONCURRENT ADMINISTRATION OF CURCUMIN WITH MORPHINE FOR 4 DAYS SIGNIFICANTLY REDUCED DEVELOPMENT OF OPIOID-INDUCED MECHANICAL ALLODYNIA, THERMAL HYPERALGESIA, TOLERANCE, AND PHYSICAL DEPENDENCE. CONVERSELY, THE HDAC INHIBITOR SAHA ENHANCED THESE RESPONSES. INTERESTINGLY, SAHA TREATMENT AFTER THE TERMINATION OF OPIOID ADMINISTRATION SUSTAINED THESE BEHAVIORAL CHANGES FOR AT LEAST 4 WEEKS. HISTONE H3 ACETYLATION IN THE DORSAL HORN OF THE SPINAL CORD WAS INCREASED AFTER CHRONIC MORPHINE TREATMENT, BUT H4 ACETYLATION WAS UNCHANGED. MOREOVER, WE OBSERVED A DECREASE IN HDAC ACTIVITY IN THE SPINAL CORDS OF MORPHINE-TREATED MICE WHILE OVERALL HAT ACTIVITY WAS UNCHANGED, SUGGESTING A SHIFT TOWARD A STATE OF ENHANCED HISTONE ACETYLATION. PERSPECTIVE: THE CURRENT STUDY INDICATES THAT EPIGENETIC MECHANISMS PLAY A CRUCIAL ROLE IN OPIOID-INDUCED LONG-LASTING NEUROPLASTICITY. THESE RESULTS PROVIDE NEW SIGHT INTO UNDERSTANDING THE MECHANISMS OF OPIOID-INDUCED NEUROPLASTICITY AND SUGGEST NEW STRATEGIES TO LIMIT OPIOID ABUSE POTENTIAL AND INCREASE THE VALUE OF THESE DRUGS AS ANALGESICS.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
17  1163  19 CONTRIBUTION OF AMYGDALA HISTONE ACETYLATION IN EARLY LIFE STRESS-INDUCED VISCERAL HYPERSENSITIVITY AND EMOTIONAL COMORBIDITY. PATIENTS WITH IRRITABLE BOWEL SYNDROME (IBS) EXPERIENCE NOT ONLY ENHANCED VISCERAL PAIN BUT ALSO EMOTIONAL COMORBIDITIES, SUCH AS ANXIETY AND DEPRESSION. EARLY LIFE STRESS (ELS) IS A HIGH-RISK FOR THE DEVELOPMENT OF IBS. LITERATURES HAVE REPORTED AN IMPORTANT EPIGENETIC MODULATION IN SUSTAINING EXTRINSIC PHENOTYPES. THE AMYGDALA IS CLOSELY RELATED TO THE REGULATION OF VISCERAL FUNCTIONS AND EMOTIONAL EXPERIENCES. IN THIS STUDY, WE HYPOTHESIZED THAT ELS-INDUCED REPROGRAMMING INAPPROPRIATE ADAPTATION OF HISTONE ACETYLATION MODIFICATION IN THE AMYGDALA MAY RESULT IN VISCERAL HYPERSENSITIVITY AND ANXIETY-LIKE BEHAVIORS IN ELS RATS. TO TEST THIS HYPOTHESIS, THE MODEL OF ELS RATS WAS ESTABLISHED BY NEONATAL COLORECTAL DILATATION (CRD). VISCERAL HYPERSENSITIVITY WAS ASSESSED BASED ON THE ELECTROMYOGRAPHY RESPONSE OF THE ABDOMINAL EXTERNAL OBLIQUE MUSCLE TO CRD. EMOTIONAL COMORBIDITIES WERE EXAMINED USING THE ELEVATED PLUS MAZE TEST, OPEN FIELD TEST, AND SUCROSE PREFERENCE TEST. TRICHOSTATIN A (TSA) AND C646 WERE MICROINJECTED INTO THE CENTRAL AMYGDALA (CEA) INDIVIDUALLY TO INVESTIGATE THE EFFECTS OF DIFFERENT LEVELS OF HISTONE ACETYLATION MODIFICATION ON VISCERAL HYPERSENSITIVITY AND EMOTION. WE FOUND NEONATAL CRD RESULTED IN VISCERAL HYPERSENSITIVITY AND ANXIETY-LIKE BEHAVIORS AFTER ADULTHOOD. INHIBITING HISTONE DEACETYLASES (HDACS) IN THE CEA BY TSA ENHANCED VISCERAL SENSITIVITY BUT DID NOT AFFECT ANXIETY-LIKE BEHAVIORS, WHEREAS INHIBITING HAT BY C646 ATTENUATED VISCERAL HYPERSENSITIVITY IN ELS RATS. INTERESTINGLY, CEA TREATMENT WITH TSA INDUCED VISCERAL SENSITIVITY AND ANXIETY-LIKE BEHAVIORS IN THE CONTROL RATS. WESTERN BLOT SHOWED THAT THE EXPRESSIONS OF ACETYLATED 9 RESIDUE OF HISTONE 3 (H3K9) AND PROTEIN KINASE C ZETA TYPE (PKMZETA) WERE HIGHER IN THE ELS RATS COMPARED TO THOSE OF THE CONTROLS. THE ADMINISTRATION OF THE PKMZETA INHIBITOR ZIP INTO THE CEA ATTENUATED VISCERAL HYPERSENSITIVITY OF ELS RATS. FURTHERMORE, THE EXPRESSION OF AMYGDALA PKMZETA WAS ENHANCED BY TSA TREATMENT IN CONTROL RATS. FINALLY, WESTERN BLOT AND IMMUNOFLUORESCENCE RESULTS INDICATED THE DECREASE OF HDAC1 AND HDAC2 EXPRESSIONS, BUT NOT HDAC3 EXPRESSION, CONTRIBUTED TO THE ENHANCEMENT OF HISTONE ACETYLATION IN ELS RATS. OUR RESULTS SUPPORT OUR HYPOTHESIS THAT AMYGDALA-ENHANCED HISTONE ACETYLATION INDUCED BY STRESS IN EARLY LIFE RESULTS IN VISCERAL HYPERSENSITIVITY AND ANXIETY-LIKE BEHAVIORS IN ELS RATS, AND REVERSING THE ABNORMAL EPIGENETIC MECHANISMS MAY BE CRUCIAL TO RELIEVE CHRONIC SYMPTOMS IN ELS RATS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                        
18  4518  18 MULTI-OMICS FOR BIOMARKER APPROACHES IN THE DIAGNOSTIC EVALUATION AND MANAGEMENT OF ABDOMINAL PAIN AND IRRITABLE BOWEL SYNDROME: WHAT LIES AHEAD. RELIABLE BIOMARKERS FOR COMMON DISORDERS OF GUT-BRAIN INTERACTION CHARACTERIZED BY ABDOMINAL PAIN, INCLUDING IRRITABLE BOWEL SYNDROME (IBS), ARE CRITICALLY NEEDED TO ENHANCE CARE AND DEVELOP INDIVIDUALIZED THERAPIES. THE DYNAMIC AND HETEROGENEOUS NATURE OF THE PATHOPHYSIOLOGICAL MECHANISMS THAT UNDERLIE VISCERAL HYPERSENSITIVITY HAVE CHALLENGED SUCCESSFUL BIOMARKER DEVELOPMENT. CONSEQUENTLY, EFFECTIVE THERAPIES FOR PAIN IN IBS ARE LACKING. HOWEVER, RECENT ADVANCES IN MODERN OMICS TECHNOLOGIES OFFER NEW OPPORTUNITIES TO ACQUIRE DEEP BIOLOGICAL INSIGHTS INTO MECHANISMS OF PAIN AND NOCICEPTION. NEWER METHODS FOR LARGE-SCALE DATA INTEGRATION OF COMPLEMENTARY OMICS APPROACHES HAVE FURTHER EXPANDED OUR ABILITY TO BUILD A HOLISTIC UNDERSTANDING OF COMPLEX BIOLOGICAL NETWORKS AND THEIR CO-CONTRIBUTIONS TO ABDOMINAL PAIN. HERE, WE REVIEW THE MECHANISMS OF VISCERAL HYPERSENSITIVITY, FOCUSING ON IBS. WE DISCUSS CANDIDATE BIOMARKERS FOR PAIN IN IBS IDENTIFIED THROUGH SINGLE OMICS STUDIES AND SUMMARIZE EMERGING MULTI-OMICS APPROACHES FOR DEVELOPING NOVEL BIOMARKERS THAT MAY TRANSFORM CLINICAL CARE FOR PATIENTS WITH IBS AND ABDOMINAL PAIN.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
19  1737  31 EARLY DETECTION OF ACCELERATED AGING AND CELLULAR DECLINE (AACD): A CONSENSUS STATEMENT. THE CELLULAR HALLMARKS OF ACCELERATED AGING AND THEIR CLINICAL EXPRESSION MAY BE GROUPED USING THE TERMS 'ACCELERATED AGING AND CELLULAR DECLINE' (AACD) AND/OR 'AGE-ASSOCIATED CELLULAR DECLINE'. THIS CONSTRUCT IS DESIGNED TO CAPTURE THE BIOLOGICAL BACKGROUND PREDISPOSING THE DEVELOPMENT OF AGE-RELATED CONDITIONS. BY CLASSIFYING RISK FACTORS, EARLY INDICATORS, AND CLINICAL DIFFERENTIATORS OF AACD THROUGH EXPERT CONSENSUS, THIS STUDY AIMED TO IDENTIFY THE SIGNS, SYMPTOMS, AND MARKERS INDICATIVE OF AACD. IN DOING SO, THIS WORK PAVES THE WAY FOR FUTURE IMPLEMENTATION OF THE AACD CONCEPT IN THE CLINICAL AND RESEARCH SETTINGS. AN INTERDISCIPLINARY PANEL OF EXPERTS WITH CLINICAL AND RESEARCH EXPERTISE WAS SELECTED TO PARTICIPATE IN A VIRTUAL WORKSHOP TO DISCUSS AACD. A MODIFIED NOMINAL GROUP TECHNIQUE WAS USED TO ESTABLISH CONSENSUS AMONG THE GROUP. AN EXTENDED GROUP OF INTERNATIONAL EXPERTS CRITICALLY REVIEWED AN EARLY DRAFT OF THE MANUSCRIPT, AND THEIR FEEDBACK WAS THEN INCORPORATED INTO THE MODEL. EXPERTS IDENTIFIED 13 FACTORS PREDISPOSING TO OR CLINICALLY MANIFESTING AACD. AMONG THESE, CHRONIC DISEASES, OBESITY, AND UNFAVORABLE GENETIC BACKGROUND WERE CONSIDERED AS THE MOST IMPORTANT. THERE WAS A CONSENSUS THAT A GRADUAL AND NONSPECIFIC DEVELOPMENT OFTEN CHARACTERIZES AACD, MAKING ITS CLINICAL DETECTION POTENTIALLY CHALLENGING. IN ADDITION, SIGNS AND SYMPTOMS MIGHT HAVE MULTIFACTORIAL CAUSES AND OVERLAPPING ORIGINS, SUCH AS GENETIC AND EPIGENETIC PREDISPOSITIONS. AS A RESULT, AN INITIAL CHECKLIST WAS OUTLINED, LISTING CLINICAL FACTORS OF SPECIAL RELEVANCE (E.G., FATIGUE, LOW QUALITY OF SLEEP, AND LOW MOOD) TO REPRESENT EARLY MANIFESTATIONS OF THE ORGANISM'S EXHAUSTION, WHICH ARE ALSO FREQUENTLY NEGLECTED IN THE CLINICAL SETTING. DIFFERENTIATING AACD FROM OTHER CONDITIONS IS ESSENTIAL. THE USE OF A COMBINATION OF BIOMARKERS WAS PROPOSED AS A VIABLE METHOD IN A TWO-STEP PROCESS OF DIFFERENTIATION: 1) IDENTIFICATION OF EARLY AACD CLINICAL INDICATORS, FOLLOWED BY 2) SYMPTOM AND BIOMARKER CONFIRMATION WITH A FOCUS ON SYSTEM DOMAINS (TO BE POTENTIALLY TARGETED BY FUTURE SPECIFIC INTERVENTIONS). ALTHOUGH THE AACD CONSTRUCT IS NOT YET READY FOR ROUTINE USE IN CLINICAL PRACTICE, ITS OPERATIONALIZATION MAY SUPPORT THE EARLY IDENTIFICATION OF AGE-RELATED CONDITIONS (WHEN THIS MIGHT STILL BE AMENABLE TO REVERSION) AND ALSO ENCOURAGE PREVENTATIVE INTERVENTIONS. FURTHER INVESTIGATION IS NEEDED TO ESTABLISH SPECIFIC BIOMARKERS THAT CONFIRM INDEPENDENT RISK FACTORS FOR AACD AND PROVIDE A MORE DEFINITIVE STRUCTURE TO THE CONCEPT OF AACD (AND AGE-ASSOCIATED CELLULAR DECLINE).	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                
20  2756  19 EXPRESSION OF DNA METHYLTRANSFERASES IN ADULT DORSAL ROOT GANGLIA IS CELL-TYPE SPECIFIC AND UP REGULATED IN A RODENT MODEL OF NEUROPATHIC PAIN. NEUROPATHIC PAIN IS ASSOCIATED WITH HYPEREXCITABILITY AND INTRINSIC FIRING OF DORSAL ROOT GANGLIA (DRG) NEURONS. THESE PHENOTYPICAL CHANGES CAN BE LONG LASTING, POTENTIALLY SPANNING THE ENTIRE LIFE OF ANIMAL MODELS, AND DEPEND ON ALTERED EXPRESSION OF NUMEROUS PROTEINS, INCLUDING MANY ION CHANNELS. YET, HOW DRGS MAINTAIN LONG-TERM CHANGES IN PROTEIN EXPRESSION IN NEUROPATHIC CONDITIONS REMAINS UNCLEAR. DNA METHYLATION IS A WELL-KNOWN MECHANISM OF EPIGENETIC CONTROL OF GENE EXPRESSION AND IS ACHIEVED BY THE ACTION OF THREE ENZYMES: DNA METHYLTRANSFERASE (DNMT) 1, 3A, AND 3B, WHICH HAVE BEEN STUDIED PRIMARILY DURING DEVELOPMENT. WE FIRST PERFORMED IMMUNOHISTOCHEMICAL ANALYSIS TO ASSESS WHETHER THESE ENZYMES ARE EXPRESSED IN ADULT RAT DRGS (L4-5) AND FOUND THAT DNMT1 IS EXPRESSED IN BOTH GLIA AND NEURONS, DNMT3A IS PREFERENTIALLY EXPRESSED IN GLIA AND DNMT3B IS PREFERENTIALLY EXPRESSED IN NEURONS. A RAT MODEL OF NEUROPATHIC PAIN WAS THEN USED TO DETERMINE WHETHER NERVE INJURY MAY INDUCE EPIGENETIC CHANGES IN DRGS AT MULTIPLE TIME POINTS AFTER PAIN ONSET. REAL-TIME RT PCR ANALYSIS REVEALED ROBUST AND TIME-DEPENDENT CHANGES IN DNMT TRANSCRIPT EXPRESSION IN IPSILATERAL DRGS FROM SPARED NERVE INJURY (SNI) BUT NOT SHAM RATS. INTERESTINGLY, DNMT3B TRANSCRIPT SHOWED A ROBUST UPREGULATION THAT APPEARED ALREADY 1 WEEK AFTER SURGERY AND PERSISTED AT 4 WEEKS (OUR ENDPOINT); IN CONTRAST, DNMT1 AND DNMT3A TRANSCRIPTS SHOWED ONLY MODERATE UPREGULATION THAT WAS TRANSIENT AND DID NOT APPEAR UNTIL THE SECOND WEEK. WE SUGGEST THAT DNMT REGULATION IN ADULT DRGS MAY BE A CONTRIBUTOR TO THE PAIN PHENOTYPE AND MERITS FURTHER STUDY.	2014