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SIRT2在LPS诱导小鼠急性肾损伤中的作用及机制

Role of SIRT2 in LPS induced acute kidney injury in mice
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摘要 Sirtuin2(SIRT2)是一种依赖NAD+的组蛋白去乙酰化酶,在维持细胞氧化还原电位方面起着关键作用,并调节促炎免疫反应。然而,其在急性肾损伤(acute kidney injury,AKI)中的作用尚未得到证实。为探究SIRT2在AKI中的作用,通过注射脂多糖(lipopolysaccharides,LPS)在野生型(WT)和SIRT2敲除(SIRT2^(-/-))小鼠上分别构建AKI模型。血液生化检测结果显示,与LPS处理的WT小鼠相比,SIRT2^(-/-)小鼠肌酐和尿素氮水平更高;HE结果显示,与LPS处理的WT小鼠相比,SIRT2^(-/-)小鼠肾脏损伤更显著;qRT-PCR和Western blot结果显示,炎症基因、蛋白和氧化应激蛋白在SIRT2^(-/-)小鼠上变化的更显著。结果表明,SIRT2缺失会加重LPS诱导的AKI。 Sirtuin2(SIRT2)is an NAD^(+)dependent histone deacetylase that plays a key role in maintaining cellular REDOX potential and modulating pro-inflammatory immune responses.However,its role in acute kidney injury(AKI)has not been proven.To explore the role of SIRT2 in AKI,AKI models were constructed in wild-type(WT)and SIRT2 knockout(SIRT2^(-/-))mice by injection of lipopolysaccharide(LPS).HE results showed that kidney damage in SIRT2^(-/-)mice was more significant than that in LPS treated WT mice.qRT-PCR and Western blot results showed that more significant changes in inflammatory genes,proteins and oxidative stress proteins in SIRT2^(-/-)mice.The results suggest that SIRT2 deficiency exacerbates LPS induced AKI.
作者 韩琦 杨焕民 李士泽 徐彬 逯静静 邢琬群 张旭 HAN Qi;YANG Huanmin;LI Shize;XU Bin;LU Jingjing;XING Wanqun;ZHANG Xu(Collegeof Animal Science and Technology,Heilongjiang Bayi Agricultural ReclamationUniversity,Daqing,Heilongjiang 163319,China)
出处 《中国兽医学报》 CAS CSCD 北大核心 2024年第9期1976-1981,共6页 Chinese Journal of Veterinary Science
基金 黑龙江省自然科学基金资助项目(YQ2021C027) 黑龙江八一农垦大学三横三纵资助项目(ZRCQC202003) 黑龙江省自然科学基金优秀青年基金资助项目(ZRCQC202003) 中国博士后科学基金地区专项支持计划资助项目(2022MD713750) 中国博士后科学基金资助项目(LBH-Z22234)。
关键词 SIRT2 急性肾损伤 炎症 氧化应激 小鼠 SIRT2 acute kidney injury inflammation oxidative stress mice
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