PT - JOURNAL ARTICLE AU - NAGATA, TAKAHIRO AU - SHAKADO, SATOSHI AU - YAMAUCHI, ERI AU - TOKUSHIGE, HIROAKI AU - MIYAYAMA, TAKASHI AU - YAMAUCHI, RYO AU - FUKUDA, HIROMI AU - FUKUNAGA, ATSUSHI AU - TANAKA, TAKASHI AU - TAKATA, KAZUHIDE AU - YOKOYAMA, KEIJI AU - HIRAI, FUMIHITO TI - Tranilast Inhibits TRPV2 and Suppresses Fibrosis Progression and Weight Gain in a NASH Model Mouse AID - 10.21873/anticanres.17182 DP - 2024 Aug 01 TA - Anticancer Research PG - 3593--3604 VI - 44 IP - 8 4099 - http://ar.iiarjournals.org/content/44/8/3593.short 4100 - http://ar.iiarjournals.org/content/44/8/3593.full SO - Anticancer Res2024 Aug 01; 44 AB - Background/Aim: This study aimed to investigate the role of transient receptor potential vanilloid 2 (TRPV2) in a mouse model with non-alcoholic steatohepatitis (NASH) and to examine the effects of tranilast on TRPV2 and fibrosis-related cytokines. Materials and Methods: C57BL/6N mice were fed a Gubra-Amylin NASH (GAN) diet for 20 weeks to induce NASH. The tranilast groups received oral administration of tranilast at doses of 300, 400 and 500 mg/kg/day, five days per week for 20 weeks, in addition to the GAN diet. The effects of tranilast were assessed based on the dosage of food intake, changes in body weight, liver weight, blood biochemical parameters, histopathological examination, and expression of TRPV2 and inflammatory cytokines. Results: Hepatic expression of TRPV2 was observed in the GAN-fed NASH mouse model. The tranilast groups showed significantly suppressed increases in body and liver weights. The development of intrahepatic fat deposition and liver fibrosis, assessed histopathologically, was inhibited. Tranilast administration improved the expression of TRPV2 and inflammatory cytokines in the liver. Additionally, blood tests indicated a reduction in elevated liver enzyme levels. Conclusion: In GAN diet NASH models, TRPV2 was up-regulated in the liver and tranilast inhibited TRPV2 and suppressed fibrosis. Therefore, it might prevent the incidence of hepatocellular carcinoma associated with NASH.