常规激活核因子状腺2-相关因子2 (Nrf2) 减轻小鼠角膜和心脏损伤
Promise M Emeka1, Lorina I Badger-Emeka2, Krishnaraj Thirugnanasambantham3
1Department of Pharmaceutical Science, College of Clinical Pharmacy, King Faisal University, Al Ahsa 31982, Saudi Arabia.
Pharmaceuticals (Basel, Switzerland)
|November 27, 2024
概括
鲁丁通过增强关键信号通路来预防角膜退化和心肌梗塞. 这种天然化合物可以保护眼睛和心脏组织免受氧化损伤.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 角膜退化和心肌梗塞涉及渐进的细胞死亡和组织损伤.
- 糖尿病视网膜病变和衰老与这些疾病的风险增加有关.
- 氧化应激和炎症在这些疾病的发病过程中起着至关重要的作用.
研究的目的:
- 研究鲁丁对子角膜上皮细胞和小鼠心脏损伤中异二醇 (ISO) 诱导的氧化损伤的保护作用.
- 阐明的保护作用的潜在分子机制.
- 评估鲁丁对参与细胞保护的特定信号通路的影响.
主要方法:
- 对角膜细胞进行了细胞毒性测定和生物化学分析.
- 使用定量实时PCR (qRT-PCR) 和西式涂抹来分析基因和蛋白质表达.
- 进行了小鼠心脏组织病理学,以评估心脏组织损伤.
- 用分子对接研究来预测鲁丁和关键蛋白之间的相互作用.
主要成果:
- 常规上调ADH7和ALDH1A1,角膜细胞中的视网膜酸信号元件,减少氧化 (NO) 的产生.
- 常规减少了心脏组织中的心脏热素T (cTnT),心脏热素I (cTnI),肌酸激酶-MB (CK-MB) 和乳酸脱酶 (LDH) 水平.
- 鲁丁增强了Nrf2,Sirtuin (Sirt) 和血红素氧酶-1 (HO-1) 的核表达.
- 对接研究证实了鲁丁与Keap蛋白的相互作用,促进了Nrf2核转位.
结论:
- 鲁丁通过增强ADH7和ALDH1A1信号传递,显示出预防角膜退化的潜力.
- 鲁丁通过Keap/Nrf2通路保护氧化应激,减轻异二醇诱导的心肌梗塞.
- 这些发现表明, rutin 是一种潜在的治疗药物,用于涉及角膜和心脏氧化损伤的疾病.
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