Astilbin Induces Apoptosis in Oral Squamous Cell Carcinoma through p53 Reactivation and Mdm-2 Inhibition
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View abstract on PubMed
Summary
This summary is machine-generated.Astilbin, a natural flavonoid, effectively inhibits oral squamous cell carcinoma (OSCC) cell growth by activating the p53 pathway and inducing apoptosis. This study highlights astilbin
Area Of Science
- Oncology
- Pharmacology
- Molecular Biology
Background
- Oral squamous cell carcinoma (OSCC) is a prevalent head and neck cancer.
- The TP53 gene mutation is common in OSCC, correlating with poor prognosis and treatment resistance.
- Astilbin, a flavonoid, exhibits antioxidant, anti-inflammatory, and anti-cancer properties.
Purpose Of The Study
- To investigate the anti-cancer effects of astilbin on OSCC cell lines.
- To elucidate the role of astilbin in modulating p53 and Mdm-2 pathways in OSCC.
Main Methods
- Assessed astilbin's impact on SCC90 and SCC4 OSCC cell proliferation.
- Utilized p53 activator (RITA) and inhibitor (pifithrin-α) to study p53 pathway involvement.
- Analyzed mitochondrial membrane potential, Mdm-2 levels, p53 expression, and apoptosis markers (caspases, PARP, Bid).
Main Results
- Astilbin inhibited OSCC cell proliferation in a dose- and time-dependent manner (IC50 ≈ 75 μM).
- Astilbin demonstrated synergistic effects with a p53 activator and inhibitory effects with a p53 inhibitor.
- Astilbin induced apoptosis by reducing mitochondrial membrane potential, decreasing Mdm-2, increasing p53, and activating caspase pathways.
Conclusions
- Astilbin possesses significant anti-cancer activity against OSCC cells.
- Astilbin exerts its effects through p53-dependent induction of intrinsic apoptosis.
- Astilbin shows potential as a therapeutic agent for OSCC, leveraging its herbal medicinal properties.
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