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Intra- and Inter-cellular Rewiring of the Human Colon during Ulcerative Colitis

Author(s)
Ordovas-Montanes, Jose Manuel; Graham, Daniel B.; Shalek, Alexander K; Xavier, Ramnik Joseph; Regev, Aviv
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Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/
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Abstract
Genome-wide association studies (GWAS) have revealed risk alleles for ulcerative colitis (UC). To understand their cell type specificities and pathways of action, we generate an atlas of 366,650 cells from the colon mucosa of 18 UC patients and 12 healthy individuals, revealing 51 epithelial, stromal, and immune cell subsets, including BEST4⁺ enterocytes, microfold-like cells, and IL13RA2⁺IL11⁺ inflammatory fibroblasts, which we associate with resistance to anti-TNF treatment. Inflammatory fibroblasts, inflammatory monocytes, microfold-like cells, and T cells that co-express CD8 and IL-17 expand with disease, forming intercellular interaction hubs. Many UC risk genes are cell type specific and co-regulated within relatively few gene modules, suggesting convergence onto limited sets of cell types and pathways. Using this observation, we nominate and infer functions for specific risk genes across GWAS loci. Our work provides a framework for interrogating complex human diseases and mapping risk variants to cell types and pathways.
Date issued
2019-07
URI
https://hdl.handle.net/1721.1/126822
Department
Massachusetts Institute of Technology. Department of Chemistry; Institute for Medical Engineering and Science; David H. Koch Institute for Integrative Cancer Research at MIT; Ragon Institute of MGH, MIT and Harvard; Massachusetts Institute of Technology. Center for Microbiome Informatics and Therapeutics; Massachusetts Institute of Technology. Department of Biology
Journal
Cell
Publisher
Elsevier BV
Citation
Smillie, Christopher S. et al. “Intra- and Inter-cellular Rewiring of the Human Colon during Ulcerative Colitis.” Cell, 178, 3 (July 2019): 714–730.e22 © 2019 The Author(s)
Version: Author's final manuscript
ISSN
0092-8674

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