PMID- 33446666 OWN - NLM STAT- MEDLINE DCOM- 20210810 LR - 20210810 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 11 IP - 1 DP - 2021 Jan 14 TI - The demethylase inhibitor GSK-J4 limits inflammatory colitis by promoting de novo synthesis of retinoic acid in dendritic cells. PG - 1342 LID - 10.1038/s41598-020-79122-3 [doi] LID - 1342 AB - Dendritic cells (DCs) promote T-cell mediated tolerance to self-antigens and induce inflammation to innocuous-antigens. This dual potential makes DCs fundamental players in inflammatory disorders. Evidence from inflammatory colitis mouse models and inflammatory bowel diseases (IBD) patients indicated that gut inflammation in IBD is driven mainly by T-helper-1 (Th1) and Th17 cells, suggesting an essential role for DCs in the development of IBD. Here we show that GSK-J4, a selective inhibitor of the histone demethylase JMJD3/UTX, attenuated inflammatory colitis by reducing the inflammatory potential and increasing the tolerogenic features of DCs. Mechanistic analyses revealed that GSK-J4 increased activating epigenetic signals while reducing repressive marks in the promoter of retinaldehyde dehydrogenase isoforms 1 and 3 in DCs, enhancing the production of retinoic acid. This, in turn, has an impact on regulatory T cells (Treg) increasing their lineage stability and gut tropism as well as potentiating their suppressive activity. Our results open new avenues for the treatment of IBD patients. FAU - Donas, Cristian AU - Donas C AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. FAU - Neira, Jocelyn AU - Neira J AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. AD - Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Av. Republica 330, Santiago, Chile. FAU - Osorio-Barrios, Francisco AU - Osorio-Barrios F AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. FAU - Carrasco, Macarena AU - Carrasco M AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. FAU - Fernandez, Dominique AU - Fernandez D AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. FAU - Prado, Carolina AU - Prado C AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. FAU - Loyola, Alejandra AU - Loyola A AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. AD - Universidad San Sebastian, 7510156, Providencia, Santiago, Chile. FAU - Pacheco, Rodrigo AU - Pacheco R AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. rpacheco@cienciavida.org. AD - Universidad San Sebastian, 7510156, Providencia, Santiago, Chile. rpacheco@cienciavida.org. FAU - Rosemblatt, Mario AU - Rosemblatt M AD - Fundacion Ciencia & Vida, Av. Zanartu 1482, 7780272, Nunoa, Santiago, Chile. mrosemblatt@cienciavida.org. AD - Universidad San Sebastian, 7510156, Providencia, Santiago, Chile. mrosemblatt@cienciavida.org. AD - Departamento de Biologia, Facultad de Ciencias, Universidad de Chile, 7800003, Santiago, Chile. mrosemblatt@cienciavida.org. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210114 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Benzazepines) RN - 0 (GSK-J4) RN - 0 (Pyrimidines) RN - 5688UTC01R (Tretinoin) RN - EC 1.2.1 (Aldehyde Dehydrogenase 1 Family) RN - EC 1.2.1.36 (ALDH1A1 protein, mouse) RN - EC 1.2.1.36 (Retinal Dehydrogenase) RN - EC 1.2.1.36 (retinaldehyde dehydrogenase 3, mouse) SB - IM MH - Aldehyde Dehydrogenase 1 Family/genetics/immunology MH - Animals MH - Benzazepines/*pharmacology MH - Colitis/drug therapy/genetics/*immunology/pathology MH - Dendritic Cells/*immunology/pathology MH - Inflammatory Bowel Diseases/drug therapy/genetics/*immunology/pathology MH - Mice MH - Mice, Knockout MH - Pyrimidines/*pharmacology MH - Retinal Dehydrogenase/genetics/immunology MH - T-Lymphocytes, Regulatory/immunology/pathology MH - Th1 Cells/immunology/pathology MH - Th17 Cells/immunology/pathology MH - Tretinoin/*immunology PMC - PMC7809056 COIS- J.N., F.O.-B., D.F., C.P. and R.P. declare that they do not have any financial or non-financial competing interests. C.D., M.C., A.L. and M.R. are authors of a pending patent application describing the therapeutic use of using GSK-J4 as treatment for inflammatory bowel diseases. EDAT- 2021/01/16 06:00 MHDA- 2021/08/11 06:00 PMCR- 2021/01/14 CRDT- 2021/01/15 05:53 PHST- 2020/03/31 00:00 [received] PHST- 2020/11/26 00:00 [accepted] PHST- 2021/01/15 05:53 [entrez] PHST- 2021/01/16 06:00 [pubmed] PHST- 2021/08/11 06:00 [medline] PHST- 2021/01/14 00:00 [pmc-release] AID - 10.1038/s41598-020-79122-3 [pii] AID - 79122 [pii] AID - 10.1038/s41598-020-79122-3 [doi] PST - epublish SO - Sci Rep. 2021 Jan 14;11(1):1342. doi: 10.1038/s41598-020-79122-3.