Schisandrin A inhibits head and neck squamous cell carcinoma progression via the PI3K/AKT/GSK3β pathway

Han-Yu Wu1, Wen-Jing Wang1, Qian Lin1

  • 1Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei, 430060, PR China.

Abstract

Insights

Schisandrin A (SchA) effectively inhibits head and neck squamous cell carcinoma (HNSCC) progression. This natural compound targets the PI3K/AKT/GSK3β pathway, showing promise as a novel HNSCC therapeutic.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Head and neck squamous cell carcinoma (HNSCC) presents a significant public health challenge with limited treatment options.
  • There is a critical need for novel, safe, and effective therapies for this aggressive cancer.
  • Schisandrin A (SchA), a lignan from Schisandra chinensis, has demonstrated preliminary anticancer potential but its efficacy in HNSCC is unknown.

Purpose of the Study:

  • To investigate the antitumor effects of Schisandrin A (SchA) in head and neck squamous cell carcinoma (HNSCC).
  • To elucidate the molecular mechanisms underlying SchA's action in HNSCC, focusing on the PI3K/AKT/GSK3β signaling pathway.

Main Methods:

  • In vitro studies on HNSCC cell lines assessed cell viability, proliferation, migration, and apoptosis after SchA treatment.
  • An in vivo xenograft mouse model was used to evaluate SchA's tumor growth inhibition.
  • Western blotting and immunofluorescence staining analyzed the PI3K/AKT/GSK3β pathway modulation.

Main Results:

  • Schisandrin A (SchA) significantly inhibited HNSCC malignant progression in both cell lines and animal models.
  • SchA treatment led to the downregulation of the PI3K/AKT/GSK3β signaling pathway.
  • Reduced phosphorylation of key proteins in the PI3K/AKT/GSK3β cascade confirmed pathway inhibition.

Conclusions:

  • Schisandrin A (SchA) demonstrates potent antitumor activity against HNSCC.
  • The mechanism involves the inhibition of the PI3K/AKT/GSK3β signaling pathway.
  • SchA represents a promising therapeutic candidate for HNSCC treatment.

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