Protective effect and underlying mechanism of muscone on acute cerebral ischemia-reperfusion injury in rats

血管生成 神经保护 药理学 活力测定 缺血 免疫印迹 医学 再灌注损伤 细胞凋亡 氯化四氮唑 染色 尼氏体 体内 化学 病理 生物 生物化学 内科学 生物技术 基因
作者
Pei Zhang,Suxin You,Xinyue Ding,Pengwei Luan,Jiazhen Xu,Qianfei Cui,Feiyun Wang,Ruixiang Li,Yuying Zhu,Jiange Zhang
出处
期刊:Journal of Ethnopharmacology [Elsevier BV]
卷期号:308: 116287-116287 被引量:11
标识
DOI:10.1016/j.jep.2023.116287
摘要

Musk is a widely used traditional Chinese medicine, which has resuscitation, activating blood, and disperse swelling effects. Musk is commonly used in the prevention of myocardial infarction and ischemic stroke, and muscone is its main active component. The effect and mechanism of muscone to improve the condition of ischemic stroke is not clear, accordingly, we verified its efficacy in ischemia-reperfused rats, and investigated its mechanism by PC12 and THP-1 cells. A transient middle cerebral artery occlusion (tMCAO) rat model was established for in vivo experiments. 2,3,5-Triphenyl Tetrazolium Chloride (TTC) staining was used to calculate infarct rate. Neuroprotection and angiogenesis were assessed by Hematoxylin-eosin (HE) staining, nissl staining, immunofluorescence staining, and quantitative real-time PCR (qRT-PCR). Oxygen glucose deprivation-reperfusion (OGD/R) model of PC12 cells was established for neuroprotection analysis, where CCK-8 assay was used to measure cell viability, flow cytometry and Hoechst 33258 staining were used to demonstrate apoptosis, and protein levels were detected by Western blot. For angiogenesis analysis, enzyme-linked immunosorbent assay (ELISA) and qRT-PCR were used to detect angiogenic factors expressed by THP-1. Cell viability assay, scratch wound assay, and tube formation assay were used to evaluate angiogenic effect of HUVECs treated with medium of THP-1. And the angiogenic pathway in HUVECs was detected by Western blot. According to the results, in cerebral ischemia-reperfusion rats, the infarct rate and tissue damage were significantly reduced by muscone, and the expression of neurotrophic factors and angiogenesis-related factors were all elevated. In OGD/R–PC12 cell models, muscone could increase cell viability and inhibit apoptosis via Bax/Bcl-2/Caspase-3 pathway. In THP-1-mediated angiogenesis of HUVECs, muscone promoted the secretion of angiogenesis-related factors in THP-1 and thus indirectly promoted the proliferation, migration and tube formation of HUVECs, and then regulated phosphorylation of VEGFR2 and Akt in HUVECs. Our study indicated that muscone may be a potential neuroprotective and proangiogenic agent in cerebral ischemia.
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