Sja-let-7 suppresses the development of liver fibrosis via Schistosoma japonicum extracellular vesicles
文献类型： 外文期刊
作者： Zhong, Haoran 1 ; Dong, Bowen 1 ; Zhu, Danlin 1 ; Fu, Zhiqiang 1 ; Liu, Jinming 1 ; Jin, Yamei 1 ;
作者机构： 1.Shanghai Vet Res Inst, Chinese Acad Agr Sci, Natl Reference Lab Anim Schistosomiasis, Shanghai, Peoples R China
2.Shanghai Vet Res Inst, Chinese Acad Agr Sci, Key Lab Anim Parasitol Minist Agr & Rural Affairs, Shanghai, Peoples R China
期刊名称：PLOS PATHOGENS （ 影响因子：6.7； 五年影响因子：6.7 ）
ISSN： 1553-7366
年卷期： 2024 年 20 卷 4 期
页码：
收录情况： SCI
摘要： Schistosomiasis is a fatal zoonotic parasitic disease that also threatens human health. The main pathological features of schistosomiasis are granulomatous inflammation and subsequent liver fibrosis, which is a complex, chronic, and progressive disease. Extracellular vesicles (EVs) derived from schistosome eggs are broadly involved in host-parasite communication and act as important contributors to schistosome-induced liver fibrosis. However, it remains unclear whether substances secreted by the EVs of Schistosoma japonicum, a long-term parasitic "partner" in the hepatic portal vein of the host, also participate in liver fibrosis. Here, we report that EVs derived from S. japonicum worms attenuated liver fibrosis by delivering sja-let-7 into hepatic stellate cells (HSCs). Mechanistically, activation of HSCs was reduced by targeting collagen type I alpha 2 chain (Col1 alpha 2) and downregulation of the TGF-beta/Smad signaling pathway both in vivo and in vitro. Overall, these results contribute to further understanding of the molecular mechanisms underlying host-parasite interactions and identified the sja-let-7/Col1 alpha 2/TGF-beta/Smad axis as a potential target for treatment of schistosomiasis-related liver fibrosis.
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