Metformin inhibits the development and metastasis of ovarian cancer

Buchu Wu1, Shu Li, Lili Sheng

  • 1Department of Obstetrics and Gynecology, Ren-Ji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China.

Oncology Reports
|July 4, 2012
PubMed

Insights

Metformin significantly inhibits ovarian cancer cell development and metastasis in vitro and in vivo. It reduces cell adhesion, invasion, and migration, while also decreasing angiogenesis and macrophage infiltration.

Area of Science:

  • Oncology
  • Pharmacology
  • Cell Biology

Background:

  • Ovarian cancer is a leading cause of cancer-related deaths in women.
  • Metformin, a common diabetes drug, has shown potential anti-cancer properties.
  • Understanding metformin's mechanism in ovarian cancer is crucial for therapeutic development.

Purpose of the Study:

  • To investigate metformin's role in regulating ovarian cancer cell development and metastasis.
  • To assess metformin's effects on ovarian cancer cell adhesion, invasion, and migration in vitro.
  • To evaluate metformin's impact on tumor growth, metastasis, angiogenesis, and macrophage infiltration in vivo.

Main Methods:

  • In vitro studies utilized cell adhesion, invasion, and migration tests on ovarian cancer cell lines (SKOV3, HO8910-PM).
  • In vivo studies involved administering intraperitoneal metformin to nude mice bearing ovarian tumors.
  • Tumor size, metastatic tumor count, angiogenesis (vWF), and macrophage infiltration were quantified.

Main Results:

  • Metformin demonstrated a dose-dependent inhibition of ovarian cancer cell proliferation, migration, invasion, and adhesion in vitro (P<0.05).
  • In vivo, metformin significantly inhibited hepatic, intestinal, and lung metastasis (P<0.05) without causing weight loss.
  • Decreased expression of von Willebrand Factor (vWF) and reduced macrophage infiltration were observed in tumors.

Conclusions:

  • Metformin effectively inhibits ovarian cancer development and metastasis.
  • The drug's action involves reducing cellular-extracellular matrix interactions, neovascularization, and macrophage infiltration.
  • Metformin presents a promising therapeutic agent for ovarian cancer treatment.

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