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Echinocystic acid inhibits sepsis-associated renal inflammation and apoptosis by targeting protein tyrosine phosphatase 1B.

Dan WuHailong LiLin WangYayue HuHong HuangJinhe LiYing YangXi WuXiaoman YeRuiqi MaoJiahang LiXue ShiChunfeng XieCheng Yang
Published in: International immunopharmacology (2024)
Thefruits of Gleditsia sinensis Lam. have been utilized to treat inflammatory diseases in China. Echinocystic acid (EA), one pentacyclic triterpenoid isolated from thefruits of G. sinensis, exhibits an anti-inflammatory effect. However, its anti-sepsis activity and mechanism of action, especially the protective effect against sepsis-associated acute kidney injury (SA-AKI), are not investigated yet. This study is to explore the efficacy and potential mechanism of EA on SA-AKI. EA elevated the function of multiple organs and effectively reduced the increased inflammation and apoptosis of kidney tissue and HK-2 cells. DARTS, CETSA, and molecular docking experiments revealed that EA could directly bind to protein tyrosine phosphatase 1B (PTP1B), a widespread prototype non-receptor tyrosine phosphatase. Collectively, EA can alleviate murine SA-AKI though restraining inflammation and apoptosis and may be a potential natural drug for remedying SA-AKI.
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