Discovery of Natural Compound α-Hederin via Large-Scale Screening as a Targeted JAK/STAT3 Inhibitor for Ovarian

Jiayu Wang1, Pengzhan He2, Cheng Liu3

  • 1Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China.

Insights

α-Hederin, a natural compound, effectively inhibits ovarian cancer progression by targeting JAK1/JAK2 and STAT3 signaling. It shows promise in overcoming chemoresistance and metastasis, with potential for clinical use.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Chemoresistance and metastasis are significant challenges in ovarian cancer (OC) treatment.
  • Targeting key signaling pathways like JAK/STAT3 offers therapeutic potential for OC.

Purpose of the Study:

  • To investigate α-Hederin as a dual inhibitor of JAK1/JAK2 for ovarian cancer treatment.
  • To elucidate the mechanism of action of α-Hederin in suppressing OC progression.

Main Methods:

  • Transcriptomic analysis, virtual screening, molecular docking, and biochemical validation were employed.
  • In vitro and in vivo studies in mouse models assessed α-Hederin's efficacy and toxicity.
  • Mechanism of action explored via STAT3 phosphorylation, nuclear translocation, and target gene analysis.

Main Results:

  • α-Hederin selectively inhibits JAK1/JAK2, suppressing STAT3 phosphorylation and downstream oncogenic targets (MYC, CCND1, TWIST1).
  • α-Hederin demonstrated significant inhibition of OC cell proliferation, epithelial-mesenchymal transition (EMT), and metastasis in vitro and in vivo.
  • The compound exhibited minimal systemic toxicity and synergized with cisplatin, overcoming platinum resistance.

Conclusions:

  • α-Hederin is a potent and safe natural JAK1/2 inhibitor targeting the JAK/STAT3 pathway in ovarian cancer.
  • It effectively suppresses tumor growth, metastasis, and chemoresistance, representing a promising candidate for clinical translation.

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