Genetic drivers of heterogeneity in type 2 diabetes pathophysiology

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Suzuki, KenOsaka Univ, Dept Stat Genet, Grad Sch Med, Suita, Osaka, Japan;Univ Manchester, Div Musculoskeletal & Dermatol Sci, Ctr Genet & Genom Versus Arthrit, Ctr Musculoskeletal Res, Manchester, Lancs, England;Univ Tokyo, Dept Diabet & Metab Dis, Grad Sch Med, Tokyo, Japan (author)

Genetic drivers of heterogeneity in type 2 diabetes pathophysiology

Article/chapterEnglish2024

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Springer Nature,2024
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LIBRIS-ID:oai:DiVA.org:uu-533526
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-533526URI
https://doi.org/10.1038/s41586-024-07019-6DOI

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For complete list of authors see http://dx.doi.org/10.1038/s41586-024-07019-6
Type 2 diabetes (T2D) is a heterogeneous disease that develops through diverse pathophysiological processes1,2 and molecular mechanisms that are often specific to cell type3,4. Here, to characterize the genetic contribution to these processes across ancestry groups, we aggregate genome-wide association study data from 2,535,601 individuals (39.7% not of European ancestry), including 428,452 cases of T2D. We identify 1,289 independent association signals at genome-wide significance (P < 5 × 10−8) that map to 611 loci, of which 145 loci are, to our knowledge, previously unreported. We define eight non-overlapping clusters of T2D signals that are characterized by distinct profiles of cardiometabolic trait associations. These clusters are differentially enriched for cell-type-specific regions of open chromatin, including pancreatic islets, adipocytes, endothelial cells and enteroendocrine cells. We build cluster-specific partitioned polygenic scores5 in a further 279,552 individuals of diverse ancestry, including 30,288 cases of T2D, and test their association with T2D-related vascular outcomes. Cluster-specific partitioned polygenic scores are associated with coronary artery disease, peripheral artery disease and end-stage diabetic nephropathy across ancestry groups, highlighting the importance of obesity-related processes in the development of vascular outcomes. Our findings show the value of integrating multi-ancestry genome-wide association study data with single-cell epigenomics to disentangle the aetiological heterogeneity that drives the development and progression of T2D. This might offer a route to optimize global access to genetically informed diabetes care.

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Giedraitis, VilmantasUppsala universitet,Klinisk geriatrik(Swepub:uu)vigie517 (author)
Ingelsson, MartinUppsala universitet,Molekylär geriatrik(Swepub:uu)maing121 (author)
Lind, LarsUppsala universitet,Klinisk epidemiologi(Swepub:uu)larslind (author)
Ingelsson, Erik,1975-Uppsala universitet,Science for Life Laboratory, SciLifeLab,Molekylär epidemiologi,Stanford Univ, Dept Med, Sch Med, Stanford, CA 94305 USA(Swepub:uu)ering425 (author)
Zeggini, EleftheriaGerman Res Ctr Environm Hlth, Inst Translat Genom, Helmholtz Zentrum Munchen, Neuherberg, Germany;Klinikum Rechts Der Isar, Munich, Germany;Tech Univ Munich, TUM Sch Med & Hlth, Munich, Germany (author)
Osaka Univ, Dept Stat Genet, Grad Sch Med, Suita, Osaka, Japan;Univ Manchester, Div Musculoskeletal & Dermatol Sci, Ctr Genet & Genom Versus Arthrit, Ctr Musculoskeletal Res, Manchester, Lancs, England;Univ Tokyo, Dept Diabet & Metab Dis, Grad Sch Med, Tokyo, JapanKlinisk geriatrik (creator_code:org_t)

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In:Nature: Springer Nature627:8003, s. 347-3570028-08361476-4687

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