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Gabarapl2 Is Critical For Growth Restriction Of Toxoplasma Gondii In Hela Cells Treated With Gamma Interferon

文献类型： 外文期刊

作者： Zhang, ZX; Gu, HR; Li, Q; Zheng, J; Cao, SN; Weng, CJ; Jia, HL

作者机构：

关键词： Toxoplasma gondii; GABARAPL2; IFN-gamma; autophagy adaptors

期刊名称： INFECTION AND IMMUNITY

ISSN： 0019-9567

年卷期： 2020 年 88 卷 5 期

页码：

收录情况： JCR（2021版）

摘要： Gamma interferon (IFN-gamma)-induced innate immune responses play important roles in the inhibition of Toxoplasma gondii infection. It has been reported that IFN-gamma stimulates non-acidification-dependent growth restriction of T. gondii in HeLa cells, but the mechanism remains unclear. Here, we found that gamma-aminobutyric acid (GABA) receptor-associated protein-like 2 (GABARAPL2) plays a critical role in parasite restriction in IFN-gamma-treated HeLa cells. GABARAPL2 is recruited to membrane structures surrounding parasitophorous vacuoles (PV). Autophagy adaptors are required for the proper localization and function of GABARAPL2 in the IFN-gamma-induced immune response. These findings provide further understanding of a noncanonical autophagy pathway responsible for IFN-gamma-dependent inhibition of T. gondii growth in human HeLa cells and demonstrate the critical role of GABARAPL2 in this response.

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