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ENGLISH ABSTRACT
JOURNAL ARTICLE
[Identification and function analysis of target group for cardioprotection of Baoyuan decoction].
Zhongguo Zhong Yao za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica 2017 October
Baoyuan decoction (BYD) is a well-known traditional Chinese medicine formula for coronary heart disease with Qi deficiency. However, the detailed pharmacological mechanism of BYD is still unknown because of its complicated chemical compositions. In this study, we synthesized a kind of solid beads with benzophenone groups on its surface. Benzophenone can be activated and chemically cross-linked with the C-H bonds of the chemical compositions in BYD (BYD beads) under UV activation. We thus captured all the target proteins from mouse heart tissue lysates by using BYD beads. Based on proteomics analysis, we discovered totally 46 potential binding target proteins, most of which were located in mitochondria. KEGG analysis revealed that these target proteins were mainly associated with TCA cycle and amino acid metabolism signaling pathways, suggesting that the cardioprotection of BYD might be associated with regulating mitochondrial function and energy production. Moreover, JC-1 staining analysis also confirmed the protective effect of BYD on mitochondrial damage. In summary, our findings elucidated the potential mechanism of BYD on cardioprotection through "target fishing" strategy, and further explained its traditional efficacy in the molecular level. In addition, we also provide an approach for investigating the target group of complicated compositions in Chinese herbal formula. This novel method may provide a methodological reference for exploring the pharmacological mechanism of traditional Chinese formula in the future.
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