科里拉丁通过通过与Bip的结合来调节内分泌网膜应激来缓解肠道缺血-再输液损伤
Yunxiang Wang1, Guanting Liu1, Feng Qiu1
1College of Pharmacy, Dalian Medical University, Dalian, 116044, PR China.
Phytomedicine : international journal of phytotherapy and phytopharmacology
|September 12, 2024
概括
科里拉丁通过向结合性免疫球蛋白蛋白 (Bip) 来保护肠道缺血-再输液 (II/R) 损伤. 这种天然化合物促进了Bip的降解,减少了细胞内网膜应激 (ERS) 并减轻了组织损伤.
科学领域:
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠道缺血-再输液 (II/R) 损伤带来了高死亡率的重大临床挑战.
- 目前对II/R损伤的治疗选择有限,需要开发新的干预措施.
- 科里拉金是一种天然的多,具有减轻II/R损伤的潜力,但其精确的分子点和机制需要澄清.
研究的目的:
- 为了阐明科里拉金对II/R损伤的药理学影响.
- 为了确定基底的分子标和机制,对II/R伤害的保护作用的科里拉金.
主要方法:
- 建立II/R损伤的动物模型.
- 生物化学和病理学评估对科里拉金的疗效.
- 综合转录基因和蛋白质基因分析以确定关键目标.
- 使用显微镜,免疫组织化学,TUNEL,流细胞测量和西式斑点检查内质网膜应激 (ERS).
- 分子对接,分子动力学模拟,CETSA和DARTS测试以确认胆素-Bip相互作用.
- 同免疫沉试验用于研究Bip-基质相互作用.
主要成果:
- 科里拉丁显著保护II/R损伤,减少组织损伤和氧化应激.
- 综合的奥米克分析确定了Bip作为由胆素调节的关键标.
- 实验测定证实了科里拉金和Bip之间的直接相互作用.
- 科里拉丁促进了Bip基底复合物的依赖于全胺的降解,抑制了ERS信号通路 (IRE1,PERK,ATF6) 并减轻了组织损伤.
结论:
- 科里拉丁选择性地与Bip结合,诱导其降解并抑制内分泌网膜应激.
- 这种机制有效地减轻II/R损伤,支持科里拉金作为ESR抑制剂的潜力.
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