Multi-ancestry polygenic mechanisms of type 2 diabetes

© 2024. The Author(s), under exclusive licence to Springer Nature America, Inc..

Type 2 diabetes (T2D) is a multifactorial disease with substantial genetic risk, for which the underlying biological mechanisms are not fully understood. In this study, we identified multi-ancestry T2D genetic clusters by analyzing genetic data from diverse populations in 37 published T2D genome-wide association studies representing more than 1.4 million individuals. We implemented soft clustering with 650 T2D-associated genetic variants and 110 T2D-related traits, capturing known and novel T2D clusters with distinct cardiometabolic trait associations across two independent biobanks representing diverse genetic ancestral populations (African, n = 21,906; Admixed American, n = 14,410; East Asian, n =2,422; European, n = 90,093; and South Asian, n = 1,262). The 12 genetic clusters were enriched for specific single-cell regulatory regions. Several of the polygenic scores derived from the clusters differed in distribution among ancestry groups, including a significantly higher proportion of lipodystrophy-related polygenic risk in East Asian ancestry. T2D risk was equivalent at a body mass index (BMI) of 30 kg m-2 in the European subpopulation and 24.2 (22.9-25.5) kg m-2 in the East Asian subpopulation; after adjusting for cluster-specific genetic risk, the equivalent BMI threshold increased to 28.5 (27.1-30.0) kg m-2 in the East Asian group. Thus, these multi-ancestry T2D genetic clusters encompass a broader range of biological mechanisms and provide preliminary insights to explain ancestry-associated differences in T2D risk profiles.

Errataetall:

UpdateOf: medRxiv. 2023 Sep 29;:. - PMID 37808749

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:30

Enthalten in:

Nature medicine - 30(2024), 4 vom: 22. Apr., Seite 1065-1074

Sprache:

Englisch

Beteiligte Personen:

Smith, Kirk [VerfasserIn]
Deutsch, Aaron J [VerfasserIn]
McGrail, Carolyn [VerfasserIn]
Kim, Hyunkyung [VerfasserIn]
Hsu, Sarah [VerfasserIn]
Huerta-Chagoya, Alicia [VerfasserIn]
Mandla, Ravi [VerfasserIn]
Schroeder, Philip H [VerfasserIn]
Westerman, Kenneth E [VerfasserIn]
Szczerbinski, Lukasz [VerfasserIn]
Majarian, Timothy D [VerfasserIn]
Kaur, Varinderpal [VerfasserIn]
Williamson, Alice [VerfasserIn]
Zaitlen, Noah [VerfasserIn]
Claussnitzer, Melina [VerfasserIn]
Florez, Jose C [VerfasserIn]
Manning, Alisa K [VerfasserIn]
Mercader, Josep M [VerfasserIn]
Gaulton, Kyle J [VerfasserIn]
Udler, Miriam S [VerfasserIn]

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Date Completed 22.04.2024

Date Revised 22.04.2024

published: Print-Electronic

UpdateOf: medRxiv. 2023 Sep 29;:. - PMID 37808749

Citation Status MEDLINE

doi:

10.1038/s41591-024-02865-3

funding:

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PPN (Katalog-ID):

NLM369335228