TSPO Deficiency Exacerbates GSDMD-Mediated Macrophage Pyroptosis in Inflammatory Bowel Disease.

TSPO Deficiency Exacerbates GSDMD-Mediated Macrophage Pyroptosis in Inflammatory Bowel Disease.
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DOI:
10.3390/cells11050856
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发表时间:
2022-03-02
期刊:
影响因子:
6
通讯作者:
Zhang J
Zhang J
中科院分区:
生物学2区
文献类型:
--
作者:
Zhang X;Han J;Xu Y;Cai M;Gao F;Han J;Wang D;Fu Y;Chen H;He W;Zhang J

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背景资料:18-kDa转运蛋白(TSPO)是线粒体外膜蛋白,其表达倾向于响应炎症刺激而迅速增加。然而,TSPO在炎症和焦亡中的作用尚不清楚。在这里,我们确定TSPO作为一种新的焦亡的关键调节。(2)研究方法:采用TSPO基因敲除和DSS诱导的小鼠炎症性肠病(IBD)模型来评估TSPO在IBD发病机制中的作用。以TSPO基因敲除小鼠腹腔巨噬细胞为模型,探讨TSPO在细胞凋亡中的作用机制。结论:TSPO的表达在炎症损伤时迅速上调,并提供针对GSDMD介导的焦亡的保护功能,这有助于我们更好地理解TSPO的生物学作用和焦亡过程的新的调节机制。
Background: the 18-kDa translocator protein (TSPO) is a mitochondrial outer membrane protein, and its expression tends to increase in response to inflammatory stimulation, rapidly. However, the role of TSPO in inflammation and pyroptosis is not yet clear. Here, we identified TSPO as a novel key regulator of pyroptosis. (2) Methods: TSPO knockout and DSS induced mouse inflammatory bowel disease (IBD) models were employed to assess the roles of TSPO in the pathogenesis of IBD. Primary peritoneal macrophages from TSPO knockout mice were applied to evaluate the mechanism of TSPO in cell pyroptosis. Conclusions: in response to inflammatory injury, TSPO expression is rapidly upregulated and provides a protective function against GSDMD-mediated pyroptosis, which helps us better understand the biological role of TSPO and a novel regulatory mechanism of the pyroptosis process.
形成孔的蛋白质加油D可以调节白细胞介素-1的巨噬细胞分泌。
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