Current Biotechnology ›› 2026, Vol. 16 ›› Issue (4): 979-989.DOI: 10.19586/j.2095-2341.2025.0147

• Articles • Previous Articles    

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

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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