Author
Listed:
- A. S. Axelsson
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- T. Mahdi
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
Medical Research Center, Hawler Medical University)
- H. A. Nenonen
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- T. Singh
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- S. Hänzelmann
(Institute of Biomedical Engineering, RWTH Aachen University Hospital)
- A. Wendt
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- A. Bagge
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- T. M. Reinbothe
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- J. Millstein
(Sage Bionetworks)
- X. Yang
(Sage Bionetworks
University of California)
- B. Zhang
(Sage Bionetworks
Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai)
- E. G. Gusmao
(Institute of Biomedical Engineering, RWTH Aachen University Hospital)
- L. Shu
(University of California)
- M. Szabat
(Diabetes Research Group, Life Sciences Institute, University of British Columbia)
- Y. Tang
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
Key Lab of Hormones and Development, Ministry of Health, Metabolic Diseases Hospital, Tianjin Medical University)
- J. Wang
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
Zhongshan Hospital, Xiamen University)
- S. Salö
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- L. Eliasson
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- I. Artner
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- M. Fex
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- J. D. Johnson
(Diabetes Research Group, Life Sciences Institute, University of British Columbia)
- C. B. Wollheim
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
University Medical Center)
- J.M.J. Derry
(Sage Bionetworks)
- B. Mecham
(Trialomics)
- P. Spégel
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
Centre for Analysis and Synthesis, Lund University)
- H. Mulder
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- I.G. Costa
(Institute of Biomedical Engineering, RWTH Aachen University Hospital)
- E. Zhang
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35)
- A. H. Rosengren
(Lund University Diabetes Center, CRC 91-11 SUS, Jan Waldenströms gata 35
Sage Bionetworks
University of Gothenburg)
Abstract
Type 2 diabetes (T2D) is characterized by insulin resistance and impaired insulin secretion, but the mechanisms underlying insulin secretion failure are not completely understood. Here, we show that a set of co-expressed genes, which is enriched for genes with islet-selective open chromatin, is associated with T2D. These genes are perturbed in T2D and have a similar expression pattern to that of dedifferentiated islets. We identify Sox5 as a regulator of the module. Sox5 knockdown induces gene expression changes similar to those observed in T2D and diabetic animals and has profound effects on insulin secretion, including reduced depolarization-evoked Ca2+-influx and β-cell exocytosis. SOX5 overexpression reverses the expression perturbations observed in a mouse model of T2D, increases the expression of key β-cell genes and improves glucose-stimulated insulin secretion in human islets from donors with T2D. We suggest that human islets in T2D display changes reminiscent of dedifferentiation and highlight SOX5 as a regulator of β-cell phenotype and function.
Suggested Citation
A. S. Axelsson & T. Mahdi & H. A. Nenonen & T. Singh & S. Hänzelmann & A. Wendt & A. Bagge & T. M. Reinbothe & J. Millstein & X. Yang & B. Zhang & E. G. Gusmao & L. Shu & M. Szabat & Y. Tang & J. Wang, 2017.
"Sox5 regulates beta-cell phenotype and is reduced in type 2 diabetes,"
Nature Communications, Nature, vol. 8(1), pages 1-16, August.
Handle:
RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15652
DOI: 10.1038/ncomms15652
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