biostudies-literatureUnknown12Zhang BClonorchiasis caused by Clonorchis sinensis is a mainly foodborne parasitic disease. It can lead to hepatobiliary duct inflammation, fibrosis, obstructive jaundice, liver cirrhosis, and even cholangiocarcinoma. Interleukin (IL)-10 is an immune-regulatory cytokine which plays an immunosuppressive role during infection. Our previous study found that IL-10 was increased in mice with C. sinensis infection. However, the role and mechanism of IL-10 playing in hepatobiliary injury induced by C. sinensis infection remain unknown. Herein, Il10+/+ mice and Il10+/- C57BL/6J mice were infected with C. sinensis. It was found that IL-10 deficiency aggravated biliary hyperplasia and exacerbated periductal fibrosis induced by C. sinensis infection. Moreover, IL-10 deficiency increased CD4+T cells and CD8+T cells but not macrophages in the liver of mice with infection. There were no apparent differences in Th1 and Treg cells between Il10+/+ and Il10+/- mice infected with C. sinensis. However, the proportion of Th17 cells in CD4+T cells in Il10+/- infected mice was significantly higher than that in Il10+/+ infected mice. IL-10 deficiency also enhanced the increase of Th17 cells induced by ESPs stimulation in vitro. Taken together, our results suggest that IL-10 plays a protective role in hepatobiliary injury in C57BL/6J mice induced by C. sinensis infection via inhibiting Th17 cells, which could deepen our understanding of the immunopathology of clonorchiasis.Frontiers in cellular and infection microbiology994838https://www.ebi.ac.uk/biostudies/studies/S-EPMC9606589biostudies-literatureIL-10 regulates Th17 response to inhibit hepatobiliary injury caused by Clonorchis sinensis infection in C57BL/6J mice.PMC9606589Li JLiu MYu QYu GWang JXu JHua HJiang ZKoda SZhao QZheng KYYan CZhang BXu YHfalseIL-10 regulates Th17 response to inhibit hepatobiliary injury caused by Clonorchis sinensis infection in C57BL/6J mice.Clonorchiasis caused by Clonorchis sinensis is a mainly foodborne parasitic disease. It can lead to hepatobiliary duct inflammation, fibrosis, obstructive jaundice, liver cirrhosis, and even cholangiocarcinoma. Interleukin (IL)-10 is an immune-regulatory cytokine which plays an immunosuppressive role during infection. Our previous study found that IL-10 was increased in mice with C. sinensis infection. However, the role and mechanism of IL-10 playing in hepatobiliary injury induced by C. sinensis infection remain unknown. Herein, Il10+/+ mice and Il10+/- C57BL/6J mice were infected with C. sinensis. It was found that IL-10 deficiency aggravated biliary hyperplasia and exacerbated periductal fibrosis induced by C. sinensis infection. Moreover, IL-10 deficiency increased CD4+T cells and CD8+T cells but not macrophages in the liver of mice with infection. There were no apparent differences in Th1 and Treg cells between Il10+/+ and Il10+/- mice infected with C. sinensis. However, the proportion of Th17 cells in CD4+T cells in Il10+/- infected mice was significantly higher than that in Il10+/+ infected mice. IL-10 deficiency also enhanced the increase of Th17 cells induced by ESPs stimulation in vitro. Taken together, our results suggest that IL-10 plays a protective role in hepatobiliary injury in C57BL/6J mice induced by C. sinensis infection via inhibiting Th17 cells, which could deepen our understanding of the immunopathology of clonorchiasis.2022-01-01T00:00:00Z20222025-04-04T09:41:48.963Z2025-04-04T09:41:48.963ZS-EPMC96065893631086510.3389/fcimb.2022.994838