生物技术进展 ›› 2026, Vol. 16 ›› Issue (4): 979-989.DOI: 10.19586/j.2095-2341.2025.0147

• 研究论文 • 上一篇    

白花蛇舌草总黄酮通过CDCA8-p53-糖酵解轴抗肺癌的机制研究

罗悦1(), 姜星1, 王超1, 吴迎秋1, 雒洪伟1, 张璐2()   

  1. 1.绵竹市人民医院,四川 德阳 618000
    2.重庆中医药学院,重庆 402760
  • 收稿日期:2025-10-27 接受日期:2026-03-10 出版日期:2026-07-25 发布日期:2026-09-11
  • 通信作者: 张璐
  • 作者简介:罗悦 E-mail: jjlyfutoubang@163.com
  • 基金资助:
    重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX0652);重庆市教委科技攻关项目(KJQN202215103);四川省药学会“新质药学启航计划”医院药学高质量发展科研资助项目青年项目(scyxh20240705)

Mechanistic Study on Total Flavonoids from Hedyotis diffusa Willd. Inhibiting Lung Cancer Through the CDCA8-p53-glycolysis Axis

Yue LUO1(), Xing JIANG1, Chao WANG1, Yingqiu WU1, Hongwei LUO1, Lu ZHANG2()   

  1. 1.Mianzhu People's Hospital,Sichuan Deyang 618000,China
    2.Chongqing College of Traditional Chinese Medicine,Chongqing 402760,China
  • Received:2025-10-27 Accepted:2026-03-10 Online:2026-07-25 Published:2026-09-11
  • Contact: Lu ZHANG

摘要:

探讨了白花蛇舌草总黄酮(total flavonoids of Hedyotis diffusa Willd.,HDF)通过调控细胞分裂周期相关蛋白(cell division cycle associated 8, CDCA8)-p53-糖酵解轴抗肺癌的分子机制。构建了CDCA8敲低/过表达的A549细胞模型,检测细胞增殖、克隆形成、迁移和侵袭能力;采用实时荧光定量PCR(quantitative real-time PCR,qPCR)和Western blot检测CDCA8、p53及糖酵解关键酶的表达水平;通过比色法检测葡萄糖摄取、乳酸生成和三磷酸腺苷(adenosine triphosphate,ATP)水平;用不同浓度白花蛇舌草总黄酮处理细胞,评估其对CDCA8-p53-糖酵解轴及细胞恶性表型的影响。结果显示,CDCA8敲低显著抑制A549细胞增殖、迁移和侵袭(P<0.01),上调p53及p-p53(Ser15)蛋白表达(P<0.05),下调糖酵解关键酶GLUT1、HK2、PKM2表达(P<0.05),降低葡萄糖摄取、乳酸生成和ATP水平(P<0.05);过表达CDCA8呈相反效应。HDF对A549细胞的IC50值为1.6 mg·mL-1,呈剂量依赖性下调CDCA8、上调p53/p-p53、抑制糖酵解关键酶表达及代谢(P<0.05),同时显著抑制细胞增殖、迁移和侵袭能力(P<0.05)。结果表明,HDF能够通过下调CDCA8表达、激活p53信号通路、抑制糖酵解过程来发挥抗肺癌作用。

关键词: 白花蛇舌草总黄酮, 肺癌, CDCA8, p53, 糖酵解, A549细胞

Abstract:

This study aimed to investigate the molecular mechanism by which total flavonoids of Hedyotis diffusa Willd. (HDF) exert anti-lung cancer effects through modulation of the CDCA8-p53-glycolysis axis. A549 cell models with CDCA8 knockdown/overexpression were constructed, and cell proliferation, colony formation, migration, and invasion abilities were assessed. Quantitative real-time PCR(qPCR) and Western blot were employed to detect the expression of CDCA8, p53, and key glycolytic enzymes. Glucose uptake, lactate production, and ATP levels were measured using colorimetric assays. Cells were treated with varying concentrations of HDF, and their effects on the CDCA8-p53-glycolysis axis and malignant cell phenotypes were evaluated. The results showed that CDCA8 knockdown significantly inhibited A549 cell proliferation, migration, and invasion (P<0.01), upregulated p53 and p-p53 (Ser15) protein expression (P<0.05), downregulated the expression of key glycolytic enzymes GLUT1, HK2, and PKM2 (P<0.05), and reduced glucose uptake, lactate production, and ATP levels (P<0.05); CDCA8 overexpression exhibited opposite effects. The IC50 of HDF against A549 cells was 1.6 mg·mL-1. HDF dose-dependently downregulated CDCA8, upregulated p53/p-p53, inhibited the expression and metabolism of key glycolytic enzymes (P<0.05), and significantly suppressed cell proliferation, migration, and invasion abilities (P<0.05). The results indicated that HDF exerts anti-lung cancer effects by downregulating CDCA8 expression, activating the p53 signaling pathway, and inhibiting glycolysis.

Key words: total flavonoids of Hedyotis diffusa Willd., lung cancer, CDCA8, p53, glycolysis, A549 cells

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