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.
| Original language | English |
|---|---|
| Article number | 4912 |
| Number of pages | 14 |
| Journal | Nature Communications |
| Volume | 11 |
| DOIs | |
| Publication status | Published - 30 Sept 2020 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Data acquisition
- Gene regulation
- Genetic association study
- Type 2 diabetes
ASJC Scopus subject areas
- General Chemistry
- General Biochemistry,Genetics and Molecular Biology
- General Physics and Astronomy
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Influence of genetic variants on gene expression in human pancreatic islets – implications for type 2 diabetes
Viñuela, A. (Lead / Corresponding author), Varshney, A., Bunt, M. V. D., Prasad, R. B., Asplund, O., Bennett, A., Boehnke, M., Brown, A., Erdos, M. R., Fadista, J., Hansson, O., Hatem, G., Howald, C., Iyengar, A. K., Johnson, P., Krus, U., MacDonald, P. E., Mahajan, A., Fox, J. E. M. & Narisu, N. & 16 others, , 31 May 2019, BioRxiv, 39 p.Research output: Working paper/Preprint › Preprint
Open AccessFile60 Downloads (Pure)
Datasets
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Summary statistics for the InsPIRE consortium (pancreatic islets eQTLs)
Viñuela, A. (Creator), Varshney, A. (Creator), van de Bunt, M. (Creator), Prasad, R. B. (Creator), Asplund, O. (Creator), Bennett, A. J. (Creator), Boehnke, M. (Creator), Brown, A. (Creator), Erdos, M. R. (Creator), Fadista, J. (Creator), Hansson, O. (Creator), Hatem, G. (Creator), Howald, C. (Creator), Iyengar, A. K. (Creator), Johnston, P. (Creator), Krus, U. (Creator), MacDonald, P. E. (Creator), Mahajan, A. (Creator), Manning Fox, J. E. (Creator), Narisu, N. (Creator), Nylander, V. (Creator), Orchard, P. (Creator), Panousis, N. I. (Creator), Payne, A. J. (Creator), Stitzel, M. L. (Creator), Vadlamudi, S. (Creator), Welch, R. P. (Creator), Collins, F. S. (Creator), Mohlke, K. L. (Creator), Gloyn, A. L. (Creator), Scott, L. J. (Creator), Dermitzakis, E. T. (Creator), Groop, L. (Creator), Parker, S. C. J. (Creator) & McCarthy, M. I. (Creator), Zenodo, 14 Sept 2019
DOI: 10.5281/zenodo.3408355, https://zenodo.org/records/3408356
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