期刊
CELL METABOLISM
卷 25, 期 2, 页码 400-411出版社
CELL PRESS
DOI: 10.1016/j.cmet.2016.11.016
关键词
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资金
- National Institute for Health Research (NIHR) Imperial Biomedical Research Centre
- Wellcome Trust [WT101033]
- NIH-BCBC [2U01 DK072473-06]
- Ministerio de Economia y Competitividad [BFU2014-54284-R]
- Horizon 2020 [667191]
- CERCA Programme, Generalitat de Catalunya
- Berg and Unity Biotechnology fellowship
- Berg Pharma
- Unity Biotechnology
- MRC [MR/L02036X/1] Funding Source: UKRI
- Wellcome Trust [101033/C/13/Z] Funding Source: Wellcome Trust
- Medical Research Council [MR/L02036X/1] Funding Source: researchfish
- Wellcome Trust [101033/C/13/Z] Funding Source: researchfish
Recent studies have uncovered thousands of long non-coding RNAs (lncRNAs) in human pancreatic beta cells. beta cell lncRNAs are often cell type specific and exhibit dynamic regulation during differentiation or upon changing glucose concentrations. Although these features hint at a role of lncRNAs in beta cell gene regulation and diabetes, the function of beta cell lncRNAs remains largely unknown. In this study, we investigated the function of beta cell-specific lncRNAs and transcription factors using transcript knockdowns and co-expression network analysis. This revealed lncRNAs that function in concert with transcription factors to regulate b cell-specific transcriptional networks. We further demonstrate that the lncRNA PLUTO affects local 3D chromatin structure and transcription of PDX1, encoding a key b cell transcription factor, and that both PLUTO and PDX1 are downregulated in islets from donors with type 2 diabetes or impaired glucose tolerance. These results implicate lncRNAs in the regulation of beta cell-specific transcription factor networks.
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