抑制整合素alpha v/beta 5减轻了在出血中由素诱导的保护作用
Lijiang Wang1, Supaporn Kulthinee1, John Slate-Romano1
1Department of Plastic Surgery, Rhode Island Hospital, Brown University, USA.
Experimental and molecular pathology
|September 10, 2023
概括
整体素αvβ5对于虹膜素至关重要.
科学领域:
- 生理学和分子生物学.
- 心血管研究研究心血管研究
- 创伤和重症监护服务
背景情况:
- 虹膜素是一种参与组织压力,心脏功能和炎症的激素.
- 鉴定出整体素αvβ5是素生理作用的关键受体.
- 整合素αvβ5在素对出血反应中的作用尚不清楚.
研究的目的:
- 调查整合素αvβ5是否在出血性休克期间调解素的保护作用.
- 确定整合素αvβ5对伊丽素心脏功能调节和出血后系统性炎症的贡献.
主要方法:
- 在小鼠中引起了出血性休克,随后进行了复苏和用或不使用整合素αvβ5抑制剂 (Cilengitide) 给药.
- 通过使用CRISPR/Cas-9基因编辑来降低integra β5,以进一步评估其作用.
- 评估了心脏功能,血液动力学,细胞因子水平,组织损伤和亡.
主要成果:
- 虹膜素治疗改善了出血后的心脏功能和血液动力学,这种效应被利或整合素β5敲击消除了.
- 虹膜素抑制了关键的炎症性细胞因子 (TNF-α,IL-1),肌肉和炎症细胞透,这也被整合素αvβ5抑制所废除.
- 虹膜素减少了多种组织的亡,这种保护作用取决于整合素αvβ5.
结论:
- 整体素αvβ5对于虹素在减轻出血的生理后果方面的有益作用至关重要.
- 向素-整合素αvβ5通路可能为管理出血性休克提供治疗策略.
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