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Genetic variant effects on gene expression in human pancreatic islets and their implications for T2D.
Viñuela, Ana; Varshney, Arushi; van de Bunt, Martijn; Prasad, Rashmi B; Asplund, Olof; Bennett, Amanda; Boehnke, Michael; Brown, Andrew A; Erdos, Michael R; Fadista, João; Hansson, Ola; Hatem, Gad; Howald, Cédric; Iyengar, Apoorva K; Johnson, Paul; Krus, Ulrika; MacDonald, Patrick E; Mahajan, Anubha; Manning Fox, Jocelyn E; Narisu, Narisu; Nylander, Vibe; Orchard, Peter; Oskolkov, Nikolay; Panousis, Nikolaos I; Payne, Anthony; Stitzel, Michael L; Vadlamudi, Swarooparani; Welch, Ryan; Collins, Francis S; Mohlke, Karen L; Gloyn, Anna L; Scott, Laura J; Dermitzakis, Emmanouil T; Groop, Leif; Parker, Stephen C J; McCarthy, Mark I.
Afiliación
  • Viñuela A; Department of Genetic Medicine and Development, University of Geneva Medical School, 1211, Geneva, Switzerland. ana.vinuela@newcastle.ac.uk.
  • Varshney A; Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, 1211, Geneva, Switzerland. ana.vinuela@newcastle.ac.uk.
  • van de Bunt M; Swiss Institute of Bioinformatics, 1211, Geneva, Switzerland. ana.vinuela@newcastle.ac.uk.
  • Prasad RB; Biosciences Institute, Faculty of Medical Sciences, Newcastle University, NE1 4EP, Newcastle, UK. ana.vinuela@newcastle.ac.uk.
  • Asplund O; Department of Human Genetics, University of Michigan, Ann Arbor, MI, 48109, USA.
  • Bennett A; Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
  • Boehnke M; Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 7LE, UK.
  • Brown AA; Oxford NIHR Biomedical Research Centre, Oxford University Hospitals Trust, Oxford, OX3 7LE, UK.
  • Erdos MR; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Fadista J; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Hansson O; Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
  • Hatem G; Department of Biostatistics and Center for Statistical Genetics, University of Michigan, Ann Arbor, MI, 48109, USA.
  • Howald C; Department of Genetic Medicine and Development, University of Geneva Medical School, 1211, Geneva, Switzerland.
  • Iyengar AK; Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, 1211, Geneva, Switzerland.
  • Johnson P; Swiss Institute of Bioinformatics, 1211, Geneva, Switzerland.
  • Krus U; Population Health and Genomics, University of Dundee, Dundee, Scotland, DD1 9SY, UK.
  • MacDonald PE; Medical Genomics and Metabolic Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
  • Mahajan A; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Manning Fox JE; Department of Epidemiology Research, Statens Serum Institut, Copenhagen, DK, 2300, Denmark.
  • Narisu N; Finnish Institute for Molecular Medicine (FIMM), University of Helsinki, Helsinki, Finland.
  • Nylander V; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Orchard P; Finnish Institute for Molecular Medicine (FIMM), University of Helsinki, Helsinki, Finland.
  • Oskolkov N; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Panousis NI; Department of Genetic Medicine and Development, University of Geneva Medical School, 1211, Geneva, Switzerland.
  • Payne A; Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, 1211, Geneva, Switzerland.
  • Stitzel ML; Swiss Institute of Bioinformatics, 1211, Geneva, Switzerland.
  • Vadlamudi S; Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA.
  • Welch R; Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
  • Collins FS; Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
  • Mohlke KL; Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta, Canada.
  • Gloyn AL; Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
  • Scott LJ; Human Genetics, Genentech, 1 DNA Way, South San Francisco, CA, 94080, USA.
  • Dermitzakis ET; Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta, Canada.
  • Groop L; Medical Genomics and Metabolic Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
  • Parker SCJ; Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 7LE, UK.
  • McCarthy MI; Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA.
Nat Commun ; 11(1): 4912, 2020 09 30.
Article en En | MEDLINE | ID: mdl-32999275
ABSTRACT
Most signals detected by genome-wide association studies map to non-coding sequence and their tissue-specific effects influence transcriptional regulation. However, key tissues and cell-types required for functional inference are absent from large-scale resources. Here we explore the relationship between genetic variants influencing predisposition to type 2 diabetes (T2D) and related glycemic traits, and human pancreatic islet transcription using data from 420 donors. We find (a) 7741 cis-eQTLs in islets with a replication rate across 44 GTEx tissues between 40% and 73%; (b) marked overlap between islet cis-eQTL signals and active regulatory sequences in islets, with reduced eQTL effect size observed in the stretch enhancers most strongly implicated in GWAS signal location; (c) enrichment of islet cis-eQTL signals with T2D risk variants identified in genome-wide association studies; and (d) colocalization between 47 islet cis-eQTLs and variants influencing T2D or glycemic traits, including DGKB and TCF7L2. Our findings illustrate the advantages of performing functional and regulatory studies in disease relevant tissues.
Asunto(s)

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Glucemia / Islotes Pancreáticos / Predisposición Genética a la Enfermedad / Sitios de Carácter Cuantitativo / Diabetes Mellitus Tipo 2 Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adolescent / Adult / Aged / Aged80 / Animals / Female / Humans / Male / Middle aged Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Suiza

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Glucemia / Islotes Pancreáticos / Predisposición Genética a la Enfermedad / Sitios de Carácter Cuantitativo / Diabetes Mellitus Tipo 2 Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adolescent / Adult / Aged / Aged80 / Animals / Female / Humans / Male / Middle aged Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Suiza