PMID- 38081680 OWN - NLM STAT- MEDLINE DCOM- 20231216 LR - 20231216 IS - 1347-8648 (Electronic) IS - 1347-8613 (Linking) VI - 154 IP - 1 DP - 2024 Jan TI - Transient receptor potential melastatin 2 is involved in trinitrobenzene sulfonic acid-induced acute and chronic colitis-associated fibrosis progression in mice. PG - 18-29 LID - S1347-8613(23)00068-3 [pii] LID - 10.1016/j.jphs.2023.11.004 [doi] AB - Crohn's disease, a chronic and recurrent gastrointestinal disease, frequently causes intestinal fibrosis. Transient receptor potential melastatin 2 (TRPM2), a non-selective cation channel, is activated by reactive oxygen species. This study investigated the role of TRPM2 in acute colitis and chronic colitis-associated fibrosis progression. Acute colitis and chronic colitis-associated fibrosis were induced in TRPM2-deficient (TRPM2KO) and wild-type (WT) mice through single and repeated intrarectal injections of 2,4,6-trinitrobenzene sulfonic acid (TNBS). Bone marrow-derived macrophages (BMDMs) from WT and TRPM2KO mice were stimulated using H(2)O(2). In WT mice, a single TNBS injection induced acute colitis with upregulated inflammatory cytokines/chemokines and Th1/Th17-related cytokines, while repeated TNBS injections induced chronic colitis-associated fibrosis with upregulation of fibrogenic factors and Th2-related cytokines. Acute colitis and chronic colitis-associated fibrosis with cytokines/chemokine upregulation and fibrogenic factors were considerably suppressed in TRPM2KO mice. Treating BMDMs with H(2)O(2) increased cytokine/chemokine expression and JNK, ERK, and p38 phosphorylation; however, these responses were significantly less in TRPM2KO than in WT mice. These findings suggest that TRPM2 contributes to acute colitis progression via Th1/Th17-mediated immune responses. Furthermore, TRPM2 may be directly involved in colitis-associated fibrosis induction, likely due to the regulation of Th2/TGF-beta1-mediated fibrogenesis in addition to a consequence of acute colitis progression. CI - Copyright (c) 2023 The Authors. Production and hosting by Elsevier B.V. All rights reserved. FAU - Nakamoto, Tomohiro AU - Nakamoto T AD - Division of Pathological Science, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan. FAU - Matsumoto, Kenjiro AU - Matsumoto K AD - Division of Pathological Science, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan. FAU - Yasuda, Hiroyuki AU - Yasuda H AD - Division of Pathological Science, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan. FAU - Mori, Yasuo AU - Mori Y AD - Department of Synthetic Chemistry and Biological Chemistry, Graduate of Engineering, Kyoto University, Kyoto, Japan. FAU - Kato, Shinichi AU - Kato S AD - Division of Pathological Science, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan. Electronic address: skato@mb.kyoto-phu.ac.jp. LA - eng PT - Journal Article DEP - 20231130 PL - Japan TA - J Pharmacol Sci JT - Journal of pharmacological sciences JID - 101167001 RN - 0 (TRPM Cation Channels) RN - BBX060AN9V (Hydrogen Peroxide) RN - 8T3HQG2ZC4 (Trinitrobenzenesulfonic Acid) RN - 0 (Cytokines) RN - 0 (Trinitrobenzenes) RN - 0 (Chemokines) RN - 0 (TRPM2 protein, mouse) SB - IM MH - Mice MH - Animals MH - Colon/metabolism MH - *TRPM Cation Channels/genetics MH - Hydrogen Peroxide/metabolism MH - Trinitrobenzenesulfonic Acid/adverse effects/metabolism MH - *Colitis/chemically induced/complications/genetics MH - Cytokines/metabolism MH - Trinitrobenzenes/metabolism MH - Chemokines/adverse effects/metabolism MH - Fibrosis MH - Disease Models, Animal OTO - NOTNLM OT - Colitis OT - Cytokines/chemokines OT - Fibrosis OT - Macrophages OT - Transient receptor potential melastatin 2 (TRPM2) COIS- Declaration of competing interest The authors declare no conflicts of interest. EDAT- 2023/12/12 00:42 MHDA- 2023/12/17 13:19 CRDT- 2023/12/11 20:55 PHST- 2023/08/30 00:00 [received] PHST- 2023/11/02 00:00 [revised] PHST- 2023/11/27 00:00 [accepted] PHST- 2023/12/17 13:19 [medline] PHST- 2023/12/12 00:42 [pubmed] PHST- 2023/12/11 20:55 [entrez] AID - S1347-8613(23)00068-3 [pii] AID - 10.1016/j.jphs.2023.11.004 [doi] PST - ppublish SO - J Pharmacol Sci. 2024 Jan;154(1):18-29. doi: 10.1016/j.jphs.2023.11.004. Epub 2023 Nov 30.