1 3024 149 GENETICS AND PATHOGENESIS OF DIFFUSE LARGE B-CELL LYMPHOMA. BACKGROUND: DIFFUSE LARGE B-CELL LYMPHOMAS (DLBCLS) ARE PHENOTYPICALLY AND GENETICALLY HETEROGENEOUS. GENE-EXPRESSION PROFILING HAS IDENTIFIED SUBGROUPS OF DLBCL (ACTIVATED B-CELL-LIKE [ABC], GERMINAL-CENTER B-CELL-LIKE [GCB], AND UNCLASSIFIED) ACCORDING TO CELL OF ORIGIN THAT ARE ASSOCIATED WITH A DIFFERENTIAL RESPONSE TO CHEMOTHERAPY AND TARGETED AGENTS. WE SOUGHT TO EXTEND THESE FINDINGS BY IDENTIFYING GENETIC SUBTYPES OF DLBCL BASED ON SHARED GENOMIC ABNORMALITIES AND TO UNCOVER THERAPEUTIC VULNERABILITIES BASED ON TUMOR GENETICS. METHODS: WE STUDIED 574 DLBCL BIOPSY SAMPLES USING EXOME AND TRANSCRIPTOME SEQUENCING, ARRAY-BASED DNA COPY-NUMBER ANALYSIS, AND TARGETED AMPLICON RESEQUENCING OF 372 GENES TO IDENTIFY GENES WITH RECURRENT ABERRATIONS. WE DEVELOPED AND IMPLEMENTED AN ALGORITHM TO DISCOVER GENETIC SUBTYPES BASED ON THE CO-OCCURRENCE OF GENETIC ALTERATIONS. RESULTS: WE IDENTIFIED FOUR PROMINENT GENETIC SUBTYPES IN DLBCL, TERMED MCD (BASED ON THE CO-OCCURRENCE OF MYD88(L265P) AND CD79B MUTATIONS), BN2 (BASED ON BCL6 FUSIONS AND NOTCH2 MUTATIONS), N1 (BASED ON NOTCH1 MUTATIONS), AND EZB (BASED ON EZH2 MUTATIONS AND BCL2 TRANSLOCATIONS). GENETIC ABERRATIONS IN MULTIPLE GENES DISTINGUISHED EACH GENETIC SUBTYPE FROM OTHER DLBCLS. THESE SUBTYPES DIFFERED PHENOTYPICALLY, AS JUDGED BY DIFFERENCES IN GENE-EXPRESSION SIGNATURES AND RESPONSES TO IMMUNOCHEMOTHERAPY, WITH FAVORABLE SURVIVAL IN THE BN2 AND EZB SUBTYPES AND INFERIOR OUTCOMES IN THE MCD AND N1 SUBTYPES. ANALYSIS OF GENETIC PATHWAYS SUGGESTED THAT MCD AND BN2 DLBCLS RELY ON "CHRONIC ACTIVE" B-CELL RECEPTOR SIGNALING THAT IS AMENABLE TO THERAPEUTIC INHIBITION. CONCLUSIONS: WE UNCOVERED GENETIC SUBTYPES OF DLBCL WITH DISTINCT GENOTYPIC, EPIGENETIC, AND CLINICAL CHARACTERISTICS, PROVIDING A POTENTIAL NOSOLOGY FOR PRECISION-MEDICINE STRATEGIES IN DLBCL. (FUNDED BY THE INTRAMURAL RESEARCH PROGRAM OF THE NATIONAL INSTITUTES OF HEALTH AND OTHERS.). 2018 2 1350 36 DETERMINANTS OF PULMONARY EMPHYSEMA SEVERITY IN TAIWANESE PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: AN INTEGRATED EPIGENOMIC AND AIR POLLUTANT ANALYSIS. BACKGROUND: CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) CONTINUES TO POSE A THERAPEUTIC CHALLENGE. THIS MAY BE CONNECTED WITH ITS NOSOLOGICAL HETEROGENEITY, BROAD SYMPTOMATOLOGY SPECTRUM, VARYING DISEASE COURSE, AND THERAPY RESPONSE. THE LAST THREE DECADES HAS BEEN CHARACTERIZED BY INCREASED UNDERSTANDING OF THE PATHOBIOLOGY OF COPD, WITH ASSOCIATED ADVANCES IN DIAGNOSTIC AND THERAPEUTIC MODALITIES; HOWEVER, THE IDENTIFICATION OF PATHOGNOMONIC BIOMARKERS THAT DETERMINE DISEASE SEVERITY, AFFECT DISEASE COURSE, PREDICT CLINICAL OUTCOME, AND INFORM THERAPEUTIC STRATEGY REMAINS A WORK IN PROGRESS. OBJECTIVES: HYPOTHESIZING THAT A MULTI-VARIABLE MODEL RATHER THAN SINGLE VARIABLE MODEL MAY BE MORE PATHOGNOMONIC OF COPD EMPHYSEMA (COPD-E), THE PRESENT STUDY EXPLORED FOR DISEASE-ASSOCIATED DETERMINANTS OF DISEASE SEVERITY, AND TREATMENT SUCCESS IN TAIWANESE PATIENTS WITH COPD-E. METHODS: THE PRESENT SINGLE-CENTER, PROSPECTIVE, NON-RANDOMIZED STUDY ENROLLED 125 PATIENTS WITH COPD AND 43 HEALTHY SUBJECTS BETWEEN MARCH 2015 AND FEBRUARY 2021. ADOPTING A MULTIMODAL APPROACH, INCLUDING BIOINFORMATICS-AIDED ANALYSES AND GEOSPATIAL MODELING, WE PERFORMED AN INTEGRATED ANALYSIS OF SELECTED EPIGENETIC, CLINICOPATHOLOGICAL, GEOSPATIAL, AND AIR POLLUTANT VARIABLES, COUPLED WITH CORRELATIVE ANALYSES OF TIME-PHASED CHANGES IN PULMONARY FUNCTION INDICES AND COPD-E SEVERITY. RESULTS: OUR COPD COHORT CONSISTED OF 10 NON-, 57 CURRENT-, AND 58 EX-SMOKERS (MEDIAN AGE = 69 +/- 7.76 YEARS). BASED ON THE PERCENTAGES OF LOW ATTENUATION AREA BELOW - 950 HOUNSFIELD UNITS (%LAA(-950INSP)), 36 HAD MILD OR NO EMPHYSEMA (%LAA(-950INSP) < 6), 22 WERE MODERATE EMPHYSEMA CASES (6 /= 14). WE FOUND THAT BMI, LNC-IL7R, PM(2.5), PM(10), AND SO(2) WERE DIFFERENTIALLY ASSOCIATED WITH DISEASE SEVERITY, AND ARE HIGHLY-SPECIFIC PREDICTORS OF COPD PROGRESSION. PER GEOSPATIAL LEVELS, AREAS WITH HIGH BMI AND LNC-IL7R BUT LOW PM(2.5), PM(10), AND SO(2) WERE ASSOCIATED WITH FEWER AND AMELIORATED COPD CASES, WHILE HIGH PM(2.5), PM(10), AND SO(2) BUT LOW BMI AND LNC-IL7R CHARACTERIZED PLACES WITH MORE COPD CASES AND INDICATED EXACERBATION. THE PREDICTION PENTAD EFFECTIVELY DIFFERENTIATES PATIENTS WITH MILD/NO COPD FROM MODERATE/SEVERE COPD CASES, (MEAN AUC = 0.714) AND EXHIBITED VERY HIGH STRATIFICATION PRECISION (MEAN AUC = 0.939). CONCLUSION: COMBINED BMI, LNC-IL7R, PM(2.5), PM(10), AND SO(2) LEVELS ARE OPTIMAL CLASSIFIERS FOR ACCURATE PATIENT STRATIFICATION AND MANAGEMENT TRIAGE FOR COPD IN TAIWAN. LOW BMI, AND LNC-IL7R, WITH CONCOMITANT HIGH PM(2.5), PM(10), AND SO(2) LEVELS IS PATHOGNOMONIC OF EXACERBATED/AGGRAVATED COPD IN TAIWAN. 2021 3 2951 24 GENETIC AND EPIGENETIC EPIDEMIOLOGY OF CHRONIC WIDESPREAD PAIN. THE ETIOLOGY UNDERLYING CHRONIC WIDESPREAD PAIN (CWP) REMAINS LARGELY UNKNOWN. AN INTEGRATIVE BIOPSYCHOSOCIAL MODEL SEEMS TO YIELD THE MOST PROMISING EXPLANATIONS FOR THE PATHOGENESIS OF THE CONDITION, WITH GENETIC FACTORS ALSO CONTRIBUTING TO DISEASE DEVELOPMENT AND MAINTENANCE. HERE, WE CONDUCTED A SEARCH OF STUDIES INVESTIGATING THE GENETIC AND EPIGENETIC EPIDEMIOLOGY OF CWP THROUGH ELECTRONIC DATABASES INCLUDING WEB OF SCIENCE, MEDLINE, PUBMED, EMBASE, AND GOOGLE SCHOLAR. COMBINATIONS OF KEYWORDS INCLUDING CWP, CHRONIC PAIN, MUSCULOSKELETAL PAIN, GENETICS, EPIGENETICS, GENE, TWINS, SINGLE-NUCLEOTIDE POLYMORPHISM, GENOTYPE, AND ALLELES WERE USED. IN THE END, A TOTAL OF 15 PUBLICATIONS WERE CONSIDERED RELEVANT TO BE INCLUDED IN THIS REVIEW: EIGHT WERE TWIN STUDIES ON CWP, SIX WERE MOLECULAR GENETIC STUDIES ON CWP, AND ONE WAS AN EPIGENETIC STUDY ON CWP. THE FINDINGS SUGGEST GENETIC AND UNIQUE ENVIRONMENTAL FACTORS TO CONTRIBUTE TO CWP. VARIOUS CANDIDATES SUCH AS SEROTONIN-RELATED PATHWAY GENES WERE FOUND TO BE ASSOCIATED WITH CWP AND SOMATOFORM SYMPTOMS. HOWEVER, STUDIES SHOW SOME LIMITATIONS AND NEED REPLICATION. THE PRESENTED RESULTS FOR CWP COULD SERVE AS A TEMPLATE FOR GENETIC STUDIES ON OTHER CHRONIC PAIN CONDITIONS. ULTIMATELY, A MORE IN-DEPTH UNDERSTANDING OF DISEASE MECHANISMS WILL HELP WITH THE DEVELOPMENT OF MORE EFFECTIVE TREATMENT, INFORM NOSOLOGY, AND REDUCE THE STIGMA STILL LINGERING ON THIS DIAGNOSIS. 2017 4 2526 29 EPIGENETICS APPLIED TO PSYCHIATRY: CLINICAL OPPORTUNITIES AND FUTURE CHALLENGES. PSYCHIATRIC DISORDERS ARE CLINICALLY HETEROGENEOUS AND DEBILITATING CHRONIC DISEASES RESULTING FROM A COMPLEX INTERPLAY BETWEEN GENE VARIANTS AND ENVIRONMENTAL FACTORS. EPIGENETIC PROCESSES, SUCH AS DNA METHYLATION AND HISTONE POSTTRANSLATIONAL MODIFICATIONS, INSTRUCT THE CELL/TISSUE TO CORRECTLY INTERPRET EXTERNAL SIGNALS AND ADJUST ITS FUNCTIONS ACCORDINGLY. GIVEN THAT EPIGENETIC MODIFICATIONS ARE SENSITIVE TO ENVIRONMENT, STABLE, AND REVERSIBLE, EPIGENETIC STUDIES IN PSYCHIATRY COULD REPRESENT A PROMISING APPROACH TO BETTER UNDERSTANDING AND TREATING DISEASE. IN THE PRESENT REVIEW, WE AIM TO DISCUSS THE CLINICAL OPPORTUNITIES AND CHALLENGES ARISING FROM THE EPIGENETIC RESEARCH IN PSYCHIATRY. USING SELECTED EXAMPLES, WE FIRST RECAPITULATE KEY FINDINGS SUPPORTING THE ROLE OF ADVERSE LIFE EVENTS, ALONE OR IN COMBINATION WITH GENETIC RISK, IN EPIGENETIC PROGRAMMING OF NEUROPSYCHIATRIC SYSTEMS. EPIGENETIC STUDIES FURTHER REPORT ENCOURAGING FINDINGS ABOUT THE USE OF METHYLATION CHANGES AS DIAGNOSTIC MARKERS OF DISEASE PHENOTYPE AND PREDICTIVE TOOLS OF PROGRESSION AND RESPONSE TO TREATMENT. THEN WE DISCUSS THE POTENTIAL OF USING TARGETED EPIGENETIC PHARMACOTHERAPY, COMBINED WITH PSYCHOSOCIAL INTERVENTIONS, FOR FUTURE PERSONALIZED MEDICINE FOR PATIENTS. FINALLY, WE REVIEW THE METHODOLOGICAL LIMITATIONS THAT COULD HINDER INTERPRETATION OF EPIGENETIC DATA IN PSYCHIATRY. THEY MAINLY ARISE FROM HETEROGENEITY AT THE INDIVIDUAL AND TISSUE LEVEL AND REQUIRE FUTURE STRATEGIES IN ORDER TO REINFORCE THE BIOLOGICAL RELEVANCE OF EPIGENETIC DATA AND ITS TRANSLATIONAL USE IN PSYCHIATRY. OVERALL, WE SUGGEST THAT EPIGENETICS COULD PROVIDE NEW INSIGHTS INTO A MORE COMPREHENSIVE INTERPRETATION OF MENTAL ILLNESS AND MIGHT EVENTUALLY IMPROVE THE NOSOLOGY, TREATMENT, AND PREVENTION OF PSYCHIATRIC DISORDERS. 2018 5 3939 20 LNC-IL7R ALLEVIATES PM(2.5)-MEDIATED CELLULAR SENESCENCE AND APOPTOSIS THROUGH EZH2 RECRUITMENT IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE. BACKGROUND: LONG-TERM EXPOSURE TO PM(2.5) (PARTICULATE MATTER WITH AN AERODYNAMIC DIAMETER OF