Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (5): 974-983.DOI: 10.3969/j.issn.1004-1524.2022.05.12

• Horticultural Science • Previous Articles     Next Articles

Effect of alcohol extracts from Chinese bayberry branch on proliferation and apoptosis of A375 cells and its molecular mechanism

ZHENG Yuanyua1,2(), YU Zheping2, ZHANG Shuwen2, LI Yougui3, SUN Li2, ZHENG Xiliang2, QI Xingjiang1,2,*()   

  1. 1. College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
    2. Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. Institute of Sericultural and Tea, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-11-03 Online:2022-05-25 Published:2022-06-06
  • Contact: QI Xingjiang

Abstract:

Chinese bayberry (Myrica rubra) has high medicinal values. This study was performed to evaluate the effect of alcohol extracts of Myrica rubra branch extract (MRBE) on human malignant melanoma cells A375. MTT assay, flow cytometry based on PI, Annexin V/PI double staining and quantitative reverse-transcription PCR (qRT-PCR) were used to dissect the potential mechanism of the arrest and apoptosis of A375 cells induced by MRBE. The results revealed that MRBE inhibited the proliferation of human A375 cells in a dose-dependent way, and the inhibition rate was up to 49.46%. Flow cytometry analyses suggested that 48 h treatment of MRBE induced both S-phase cell cycle arrest and apoptotic death in A375 cells. The results of qRT-PCR further showed that MRBE induced S phase arrest by promoting the upregulation of p21 and decreasing the expression of CyclinA, CyclinD, CDK2, CDK4, CDK6 and E2F1, and induced apoptosis by decreasing the expression of Bcl-w and Raf. This study revealed the action mechanism of MRBE on the induction of S-phase arrest and apoptosis of A375 cells, which could provide scientific evidence for the development of potential anti-melanom drugs by using MRBE, and help to improve the medicinal added value of Chinese bayberry branches and broaden the diversified development of its industry chain.

Key words: Chinese bayberry, alcohol extracts of branch extract, human melanoma A375 cells, cell cycle, cell apoptosis

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