Apatinib, a Novel Tyrosine Kinase Inhibitor, Promotes ROS-Dependent Apoptosis and Autophagy via the Nrf2/HO-1 Pathway

Xiaodan Sun1,2, Ji Li1, Yizhuo Li1

  • 1Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China.

Insights

Apatinib inhibits ovarian cancer cell growth and migration by promoting ROS-dependent cell death. Combining apatinib with Nrf2 inhibitors may offer a new therapeutic strategy for ovarian cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Apatinib, a VEGFR2 inhibitor, shows efficacy in various cancers.
  • The role of apatinib in ovarian cancer remains uncharacterized.

Purpose of the Study:

  • To investigate the effects and mechanisms of apatinib in ovarian cancer.
  • To explore apatinib as a potential therapeutic strategy for ovarian cancer.

Main Methods:

  • Ovarian cancer cell lines were treated with apatinib.
  • Cell growth, migration, apoptosis, and autophagy were assessed.
  • The Nrf2/HO-1 pathway and ROS generation were analyzed.

Main Results:

  • Apatinib inhibited ovarian cancer cell growth and migration dose-dependently.
  • Apatinib induced ROS-dependent apoptosis and autophagy in tumor cells.
  • Apatinib suppressed glutathione, increased ROS via Nrf2/HO-1 downregulation, and maintained antitumor effects at low VEGFR2 levels.

Conclusions:

  • Apatinib demonstrates direct antitumor activity in ovarian cancer by inducing ROS-mediated cell death.
  • Downregulation of the Nrf2/HO-1 pathway is a key mechanism for apatinib's action.
  • Combination therapy with apatinib and Nrf2 inhibitors presents a promising strategy for ovarian cancer treatment.

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