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Asplund, O.* ; Storm, P.* ; Chandra, V.* ; Hatem, G.* ; Ottosson-Laakso, E.* ; Mansour-Aly, D.* ; Krus, U.* ; Ibrahim, H.S.* ; Ahlqvist, E.* ; Tuomi, T.* ; Renström, E.* ; Korsgren, O.* ; Wierup, N.* ; Ibberson, M.* ; Solimena, M. ; Marchetti, P.* ; Wollheim, C.B.* ; Artner, I.* ; Mulder, H.* ; Hansson, O.* ; Otonkoski, T.* ; Groop, L.* ; Prasad, R.B.*

Islet Gene View-a tool to facilitate islet research.

Life Sci. All. 5:e202201376 (2022)
Publ. Version/Full Text DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Characterization of gene expression in pancreatic islets and its alteration in type 2 diabetes (T2D) are vital in understanding islet function and T2D pathogenesis. We leveraged RNA sequencing and genome-wide genotyping in islets from 188 donors to create the Islet Gene View (IGW) platform to make this information easily accessible to the scientific community. Expression data were related to islet phenotypes, diabetes status, other islet-expressed genes, islet hormone-encoding genes and for expression in insulin target tissues. The IGW web application produces output graphs for a particular gene of interest. In IGW, 284 differentially expressed genes (DEGs) were identified in T2D donor islets compared with controls. Forty percent of DEGs showed cell-type enrichment and a large proportion significantly co-expressed with islet hormone-encoding genes; glucagon (GCG, 56%), amylin (IAPP, 52%), insulin (INS, 44%), and somatostatin (SST, 24%). Inhibition of two DEGs, UNC5D and SERPINE2, impaired glucose-stimulated insulin secretion and impacted cell survival in a human β-cell model. The exploratory use of IGW could help designing more comprehensive functional follow-up studies and serve to identify therapeutic targets in T2D.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
ISSN (print) / ISBN 2575-1077
e-ISSN 2575-1077
Quellenangaben Volume: 5, Issue: 12, Pages: , Article Number: e202201376 Supplement: ,
Publisher EMBO Press
Publishing Place Heidelberg
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute for Pancreatic Beta Cell Research (IPI)