Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, Anhui, China.
Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, Anhui, China; Inflammatory Bowel Disease Research Center, First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China.
Int Immunopharmacol. 2024 Apr 20;131:111886. doi: 10.1016/j.intimp.2024.111886. Epub 2024 Mar 16.
BACKGROUND AND AIMS: Increased apoptosis of intestinal epithelial cells (IECs) is a significant cause of intestinal barrier dysfunction in Crohn's disease (CD). Sophoricoside (SOP) is an isoflavone glycoside known for its anti-apoptotic properties. The aim of this study was to investigate the effects of SOP on mice with CD-like colitis and to understand the underlying mechanisms. METHODS: Mice treated with 2,4,6-trinitrobenzene sulfonic acid (TNBS) were used to examine the therapeutic effect of SOP on CD-like colitis and intestinal barrier damage. To further explore SOP's impact on IECs apoptosis and intestinal barrier protection, an in vitro colonic organoid apoptosis model induced by TNF-α was utilized. Network pharmacology was employed to predict the relevant pathways and molecular processes associated with SOP in the treatment of CD. RESULTS: Treatment with SOP significantly improved colitis symptoms in TNBS mice, as demonstrated by reductions in the Disease Activity Index (DAI), weight loss, colon shortening, macroscopic scores, colonic tissue inflammatory scores, and the expression of pro-inflammatory factors. Our experiments confirmed that SOP protects the intestinal barrier by counteracting IECs apoptosis. Additionally, this study established that SOP reduced IECs apoptosis by inhibiting the PI3K/AKT signaling pathway. CONCLUSIONS: SOP can reduce IECs apoptosis through the inhibition of the PI3K/AKT signaling pathway, thereby protecting the intestinal barrier. This study is the first to illustrate how SOP ameliorates colitis and protects the intestinal barrier, suggesting SOP has potential clinical application in treating CD.
背景与目的:肠上皮细胞(IECs)凋亡增加是克罗恩病(CD)肠道屏障功能障碍的重要原因。槐糖苷(SOP)是一种具有抗凋亡特性的异黄酮糖苷。本研究旨在探讨 SOP 对 CD 样结肠炎小鼠的治疗作用,并探讨其潜在机制。
方法:采用 2,4,6-三硝基苯磺酸(TNBS)处理小鼠,观察 SOP 对 CD 样结肠炎和肠道屏障损伤的治疗作用。为进一步探讨 SOP 对 IECs 凋亡和肠道屏障保护的影响,采用 TNF-α诱导的结肠类器官凋亡模型进行实验。采用网络药理学预测 SOP 治疗 CD 的相关通路和分子过程。
结果:SOP 治疗可显著改善 TNBS 诱导的结肠炎小鼠的症状,表现为疾病活动指数(DAI)、体重减轻、结肠缩短、大体评分、结肠组织炎症评分和促炎因子表达降低。本实验证实 SOP 通过抑制 IECs 凋亡来保护肠道屏障。此外,本研究表明 SOP 通过抑制 PI3K/AKT 信号通路减少 IECs 凋亡。
结论:SOP 可通过抑制 PI3K/AKT 信号通路减少 IECs 凋亡,从而保护肠道屏障。本研究首次阐明了 SOP 如何改善结肠炎和保护肠道屏障,提示 SOP 在治疗 CD 方面具有潜在的临床应用价值。
Biochem Biophys Res Commun. 2025-6-17