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.
Background:
Head and neck squamous cell carcinoma (HNSCC) is a major public health concern with limited effective therapeutic options. There is an urgent need to identify novel, safe, and efficacious treatments for this aggressive malignancy. Schisandrin A (SchA), a bioactive lignan compound derived from Schisandra chinensis, has shown potential anticancer properties in preliminary studies, but its role in HNSCC remains unexplored.
Methods:
We investigated the antitumor effects of SchA using both in vitro and in vivo models of HNSCC. In cultured HNSCC cell lines, cell viability, proliferation, migration, and apoptosis were assessed following SchA treatment. Additionally, a xenograft mouse model was established by subcutaneous injection of HNSCC cells to evaluate tumor growth inhibition by SchA. The underlying molecular mechanisms, particularly the modulation of the PI3K/AKT/GSK3β signalling pathway, were analyzed through Western blotting and immunofluorescence staining.
Results:
Experimental results demonstrated that SchA markedly inhibited the malignant progression of HNSCC. Mechanistically, SchA significantly downregulated the activation of the PI3K/AKT/GSK3β signalling pathway in both cellular and animal models, as evidenced by reduced phosphorylation levels of key proteins in this cascade.
Conclusion:
SchA exhibits potent antitumor activity against HNSCC by inhibiting the PI3K/AKT/GSK3β pathway, suggesting its potential as a promising therapeutic candidate for HNSCC.
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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