http://jcps.bjmu.edu.cn

Journal of Chinese Pharmaceutical Sciences ›› 2021, Vol. 30 ›› Issue (6): 468-483.DOI: 10.5246/jcps.2021.06.036

• Original articles • Previous Articles     Next Articles

Xiao-Xu-Ming decoction extract ameliorates brain injury in rats with thrombotic focal ischemic stroke and understanding possible therapeutic targets using proteomics

Yinglin Yang1,2, Shanshan Zhang1,2, Man Liu1,2, Yuehua Wang1,2,*(), Guanhua Du1,2,*()   

  1. 1 State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
    2 Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
  • Received:2020-11-28 Revised:2021-02-13 Accepted:2021-03-15 Online:2021-06-29 Published:2021-06-29
  • Contact: Yuehua Wang, Guanhua Du

Abstract:

Ischemic stroke seriously threatens human health and quality of life. Xiao-Xu-Ming (XXM) decoction has been a classical prescription for stroke therapy. In our previous studies, we have found that XXM exerts neuroprotective effects, improves brain injury, and attenuates neuroinflammation in cerebral ischemia rats. In this study, we investigated the effects and possible mechanism of XXM on thrombotic focal cerebral ischemia. After treatment with XXM, the neurological function and motor abilities were improved, and cerebral infarction volume was significantly decreased compared with rats of thrombotic focal cerebral ischemia. Besides, the results of BBB integrity detected by EB leakage and tight junction (TJ) protein expression showed that XXM could maintain BBB integrity and improve the expressions of TJ proteins, including claudin-1, occluding, and ZO-1, in the ischemic ipsilateral cortex disrupted by thrombotic cerebral ischemia. Furthermore, proteomic techniques were used to identify the differentially expressed proteins (DEPs) in the ischemic cerebral cortex, and the results showed that 132 DEPs regulated by XXM were detected in the ischemic cerebral cortex. Bioinformatic analysis showed that these regulated proteins by XXM were mainly involved in complement and coagulation cascade, and lysosome, etc. Furthermore, there was an interaction among DEPs, including Lgals3, Ctsz, Capg, C1qa, S100a4, Grn, Hspb1, Aif1, and Anxa1, etc. In conclusion, XXM ameliorated brain injury of thrombotic focal ischemic stroke, and Lgals3, Ctsz, Capg, C1qa, S100a4, Grn, Hspb1, Aif1, and Anxa1 could help provide possible therapeutic targets of XXM for ischemic stroke and offer research direction for further research.

Key words: Xiao-Xu-Ming decoction, Thrombotic focal ischemic stroke, Blood-brain barrier, Proteomics

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