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iTRAQ-based quantitative proteomics and target-fishing strategies reveal molecular signatures on vasodilation of Compound Danshen Dripping Pills.
Chemico-Biological Interactions ( IF 4.7 ) Pub Date : 2019-12-12 , DOI: 10.1016/j.cbi.2019.108923
Xin Wu 1 , Xiujiang Han 2 , Lili Li 3 , Simiao Fan 4 , Pengwei Zhuang 3 , Zhen Yang 5 , Yanjun Zhang 3
Affiliation  

Angina pectoris can be used as an early warning for coronary artery disease. Vasodilation is an important mechanism of angina pectoris. Traditional Chinese medicine - Compound Danshen Dripping Pill (CDDP) is widely used to improve the symptoms of cardiovascular diseases (CVDs). To investigate the influence of vasodilation effect and underlying mechanisms of CDDP, we determined the vasodilation effect of thoracic aorta ring on rat induced by norepinephrine (NE). Then targets-fishing method was used to predict the potential mechanism of CDDP on vasodilation, based on the structures of the main components. Then, iTRAQ-based quantitative proteomics analysis was used for verification of the candidate target proteins and pathways to illustrate the underlying mechanisms. Furthermore, the differentially expressed proteins in the enriched pathways were validated by western blotting. In this study, we found that CDDP could significantly inhibit NE induced aortic contraction tension, and the mechanism may be related to platelet activation, cGMP - PKG signaling pathway and vascular smooth muscle contraction. The method provides a new way to uncover the vasodilation mechanism of CDDP, as well as other multi-component herbal medicines.

中文翻译:

基于iTRAQ的定量蛋白质组学和目标捕捞策略揭示了复方丹参滴丸的血管舒张作用的分子特征。

心绞痛可以用作冠状动脉疾病的预警。血管舒张是心绞痛的重要机制。中药-复方丹参滴丸(CDDP)被广泛用于改善心血管疾病(CVD)的症状。为研究血管舒张作用和CDDP潜在机制的影响,我们确定了胸主动脉环对去甲肾上腺素(NE)诱导的大鼠的血管舒张作用。然后根据主要成分的结构,采用靶标捕捞法预测CDDP对血管舒张的潜在机制。然后,基于iTRAQ的定量蛋白质组学分析用于验证候选靶蛋白和途径,以阐明潜在的机制。此外,通过蛋白质印迹法验证了富集途径中差异表达的蛋白质。在这项研究中,我们发现CDDP可以显着抑制NE引起的主动脉收缩张力,其机制可能与血小板活化,cGMP-PKG信号通路和血管平滑肌收缩有关。该方法为揭示CDDP以及其他多组分草药的血管舒张机理提供了新途径。
更新日期:2019-12-13
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