Kezhi Dai1,2, Yaoyao Wang1,3, Sichao Tai1, Huajing Ni4, Hao Lian1,3, Yan Yu1,3, Weifang Liao1,3, Cheng Zheng1,3, Qing Chen2, Aarti Kuver2, Jia Li1. 1. Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China. 2. School of Mental Health and the Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, China. 3. School of the Second Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China. 4. School of the First Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China.
Abstract
AIMS: To investigate whether there exists a cardio-protective effect of Fasudil, a selective Rho kinase (ROCK) inhibitor, in an experimental murine model of acute viral myocarditis. METHODS: Male BALB/c mice were randomly assigned to three groups: control, myocarditis treated with placebo and myocarditis treated with Fasudil (n = 40 animals per group). Myocarditis was established by intraperitoneal injection with coxsackievirus B3 (CVB3). Twenty-four hours after infection, Fasudil was intraperitoneally administered for 14 consecutive days. Twenty mice were randomly selected from each group to monitor a 14-day survival rate. On day 7 and day 14, eight surviving mice from each group were sacrificed and their hearts and blood were obtained to perform serological and histological examinations. Expression of ROCKs, IL-17, IL-1b, TNFα, RORgt, and Foxp3 were quantified with RT-PCR. Plasma levels of TNF alpha, IL-1 beta, and IL-17 were measured by ELISA. In addition, protein levels of IL-17 and ROCK2 in cardiac tissues were analyzed with Western blot. RESULTS: Fasudil treatment significantly increased survival, attenuated myocardial necrotic lesions, reduced CVB3 replication and expression of ROCK2 and IL-17 in the infected hearts. This treatment also imposed a T-cell subpopulation shift, from Th17 to Treg, in cardiac tissues. CONCLUSIONS: ROCK pathway inhibition was cardio-protective in viral myocarditis with increased survival, decreased viral replication, and inflammatory response. These findings suggest that Fasudil might be a potential therapeutic agent for patients with viral myocarditis.
AIMS: To investigate whether there exists a cardio-protective effect of Fasudil, a selective Rho kinase (ROCK) inhibitor, in an experimental murine model of acute viral myocarditis. METHODS: Male BALB/c mice were randomly assigned to three groups: control, myocarditis treated with placebo and myocarditis treated with Fasudil (n = 40 animals per group). Myocarditis was established by intraperitoneal injection with coxsackievirus B3 (CVB3). Twenty-four hours after infection, Fasudil was intraperitoneally administered for 14 consecutive days. Twenty mice were randomly selected from each group to monitor a 14-day survival rate. On day 7 and day 14, eight surviving mice from each group were sacrificed and their hearts and blood were obtained to perform serological and histological examinations. Expression of ROCKs, IL-17, IL-1b, TNFα, RORgt, and Foxp3 were quantified with RT-PCR. Plasma levels of TNF alpha, IL-1 beta, and IL-17 were measured by ELISA. In addition, protein levels of IL-17 and ROCK2 in cardiac tissues were analyzed with Western blot. RESULTS:Fasudil treatment significantly increased survival, attenuated myocardial necrotic lesions, reduced CVB3 replication and expression of ROCK2 and IL-17 in the infected hearts. This treatment also imposed a T-cell subpopulation shift, from Th17 to Treg, in cardiac tissues. CONCLUSIONS:ROCK pathway inhibition was cardio-protective in viral myocarditis with increased survival, decreased viral replication, and inflammatory response. These findings suggest that Fasudil might be a potential therapeutic agent for patients with viral myocarditis.
Authors: Timothy D Bryson; Teja S Pandrangi; Safa Z Khan; Jiang Xu; Tengis S Pavlov; Pablo A Ortiz; Edward Peterson; Pamela Harding Journal: Am J Physiol Heart Circ Physiol Date: 2020-03-06 Impact factor: 4.733
Authors: Tadeu L Montagnoli; Jaqueline S da Silva; Susumu Z Sudo; Aimeé D Santos; Gabriel F Gomide; Mauro P L de Sá; Gisele Zapata-Sudo Journal: Cells Date: 2021-06-30 Impact factor: 7.666