Leonurine suppresses renal cell carcinoma progression by targeting the PDK1-mediated Warburg effect

Tiaodi Qian1,2, Xuan Zhou1,2, Jiajie Hu1,2

  • 1Department of Endoscopy Center, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Abstract

Insights

Leonurine (Leo) inhibits renal cell carcinoma (RCC) progression by targeting pyruvate dehydrogenase kinase 1 (PDK1), suppressing the Warburg effect, and restricting tumor growth. This study reveals Leo as a novel metabolic inhibitor for RCC treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Leonurine (Leo), a bioactive alkaloid from Leonurus japonicus, shows anti-tumor potential.
  • Its specific role and molecular targets in renal cell carcinoma (RCC) require elucidation.
  • This study offers a novel perspective on Leo's anti-RCC mechanisms.

Purpose of the Study:

  • To investigate the anti-tumor effects of Leonurine (Leo) in renal cell carcinoma (RCC).
  • To identify the molecular targets and metabolic pathways affected by Leo in RCC.
  • To provide insights for developing new anti-RCC drugs.

Main Methods:

  • Evaluated Leo's efficacy in RCC cell lines using CCK-8, colony formation, flow cytometry, and Transwell assays.
  • Identified potential targets via in silico prediction (ChEMBL) and validated using MST, molecular docking, and CETSA.
  • Assessed glycolytic flux and confirmed the PDK1-mediated metabolic axis involvement through rescue experiments and in vivo xenograft models.

Main Results:

  • Leonurine significantly inhibited RCC cell proliferation and migration, inducing apoptosis.
  • Leo directly interacted with pyruvate dehydrogenase kinase 1 (PDK1), downregulating its protein levels.
  • Leo suppressed the Warburg effect, and PDK1 overexpression abrogated Leo's inhibitory effects; in vivo studies confirmed restricted tumor growth.

Conclusions:

  • Leonurine (Leo) acts as a novel metabolic inhibitor in RCC.
  • It targets the PDK1-mediated glycolytic pathway.
  • Leo demonstrates therapeutic potential for renal cell carcinoma treatment.

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