DX5+ NKT cells' increase was correlated with liver damage in FVB mice not in BALB/c mice infected by Clonorchis sinensis.

DX5+ NKT cells' distribution and population change in BALB/c and FVB mice infected by C sinensis and their function in liver damage were investigated. Mice were infected by Clonorchis sinensis metacercariae, and lymphocytes were isolated from the livers, spleens and peripheral blood. NK, DX5+ NKT, INF-γ+ DX5+ NKT cells and liver fibrosis were analysed. The DX5+ NKT cells displayed the largest amount in normal BALB/c mice liver followed by peripheral blood and spleen. Although the hepatic DX5+ NKT cells of BALB/c mice were more than that of FVB mice, they did not show significant percentage change after C sinensis infection. The hepatic DX5+ NKT cells of FVB mice increased remarkably after infection accompanied with heavier liver injury and fibrosis than the BALB/c mice. And hydroxyproline content was also positively correlated with DX5+ NKT cells only in FVB mice. However, the increase of IFN-γ producing DX5+ NKT cells was lower in FVB mice than in BALB/c mice which showed sharp increase with mild liver damage after infection. The frequencies of anti-fibrotic NK cells were similar in both of the two mouse strains. C sinensis could induce different DX5+ NKT cells responses in different mouse strains which may play roles in liver injury and fibrosis in FVB mice. © 2020 John Wiley & Sons Ltd.

Citation

Xuelian Bai, Nan Wang, Jie Zhou, Min Cui, Xuening Jing, Naiguo Liu. DX5+ NKT cells' increase was correlated with liver damage in FVB mice not in BALB/c mice infected by Clonorchis sinensis. Parasite immunology. 2021 Jan;43(1):e12796

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PMID: 32984976

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