Abstract
A significant portion of the genome is transcribed as long noncoding RNAs (lncRNAs), several of which are known to control gene expression. The repertoire and regulation of lncRNAs in disease-relevant tissues, however, has not been systematically explored. We report a comprehensive strand-specific transcriptome map of human pancreatic islets and β cells, and uncover >1100 intergenic and antisense islet-cell lncRNA genes. We find islet lncRNAs that are dynamically regulated and show that they are an integral component of the β cell differentiation and maturation program. We sequenced the mouse islet transcriptome and identify lncRNA orthologs that are regulated like their human counterparts. Depletion of HI-LNC25, a β cell-specific lncRNA, downregulated GLIS3 mRNA, thus exemplifying a gene regulatory function of islet lncRNAs. Finally, selected islet lncRNAs were dysregulated in type 2 diabetes or mapped to genetic loci underlying diabetes susceptibility. These findings reveal a new class of islet-cell genes relevant to β cell programming and diabetes pathophysiology.
Original language | English |
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Pages (from-to) | 435-448 |
Number of pages | 14 |
Journal | Cell Metabolism |
Volume | 16 |
Issue number | 4 |
DOIs | |
Publication status | Published - 3 Oct 2012 |
Bibliographical note
Funding Information:This work was funded by grants from the NIH-BCBC (2U01 DK072473-06 to J.F., P.R., and L.S.; U01-DK089567 to M.S. and J.F.), the Juvenile Diabetes Research Foundation (26-2008-633 to J.F. and 31-2008-416 to T.B., F.P., and L.P. to support human islet isolation), Ministerio de Economía y Competitividad (SAF2008-03116 to J.F. and a Ph.D. fellowship to Ignasi Morán). A.L.G. is a Wellcome Trust Senior Fellow in Basic Biomedical Research (WT 09510/Z/10/Z). We thank Rudolph Leibel (University of Columbia) for providing B6.V-Lepob/J mice, Bing Ren (Ludwig Institute for Cancer Research) for generating the ENCODE mouse tissue RNA-seq data, Kelli Bramlett (Genome Sequencing Collaborations Group) for her help in generation of SOLiD data and Viacyte, Inc. for performing implantations of hES cell derivatives. We are also grateful to Ayellet Segrè (Broad Institute) for helpful discussion on MAGENTA, and to Chris Stoeckert and Elisabetta Manduchi (University of Pennsylvania) for help with the online submission.
ASJC Scopus subject areas
- Physiology
- Molecular Biology
- Cell Biology