浙江农业学报 ›› 2022, Vol. 34 ›› Issue (5): 974-983.DOI: 10.3969/j.issn.1004-1524.2022.05.12

• 园艺科学 • 上一篇    下一篇

杨梅枝条醇提物对A375细胞增殖和凋亡的影响及其分子机制

郑园园1,2(), 俞浙萍2, 张淑文2, 李有贵3, 孙鹂2, 郑锡良2, 戚行江1,2,*()   

  1. 1.浙江师范大学 化学与生命科学学院,浙江 金华 321004
    2.浙江省农业科学院 园艺研究所,浙江 杭州 310021
    3.浙江省农业科学院 蚕桑与茶叶研究所,浙江 杭州 310021
  • 收稿日期:2021-11-03 出版日期:2022-05-25 发布日期:2022-06-06
  • 通讯作者: 戚行江
  • 作者简介:* 戚行江,E-mail: qixj@mail.zaas.ac.cn
    郑园园(1995—),女,浙江杭州人,硕士研究生,植物学专业。E-mail: zhengyuanyuanky@163.com
  • 基金资助:
    浙江省农业(果品)新品种选育重大科技专项(2021C02066-2);浙江省重点研发计划(2021C02009)

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

摘要:

杨梅(Myrica rubra)具有较高的药用价值,利用杨梅枝条醇提物(Myrica rubra branch extract, MRBE)开展其对人恶性黑色素瘤A375细胞的作用研究。采用MTT法、PI流式细胞术、Annexin V-PI双染流式细胞术、实时荧光定量PCR(qRT-PCR)等方法,解析MRBE诱导A375细胞阻滞与凋亡的潜在作用机制。结果表明:MRBE对A375细胞的抑制率呈剂量依赖效应关系,抑制率最高达49.46%;流式细胞术结果表明,MRBE作用48 h可使A375细胞阻滞于S期并发生凋亡;qRT-PCR结果进一步表明,MRBE可能通过上调P21和下调CyclinACyclinDCDK2、CDK4、CDK6、E2F1等基因的表达,诱导A375细胞阻滞于S期,同时下调Bcl-wRaf基因的表达促使A375细胞凋亡。初步解析了MRBE对人恶性黑色素瘤A375细胞增殖和凋亡的作用机制,为利用MRBE研发抗黑色素瘤潜在药物提供科学依据,同时有助于提高杨梅枝条的药用附加值,拓宽杨梅产业链多元化发展。

关键词: 杨梅, 枝条醇提物, 人黑色素瘤A375细胞, 细胞周期, 细胞凋亡

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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