Induction of apoptosis by grape seed extract (Vitis vinifera) in oral squamous cell carcinoma
Amirala Aghbali1, Sepideh Vosough Hosseini, Abbas Delazar
1Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Daneshgah street 51666-14766, Tabriz, Iran.
Abstract:
Development of novel therapeutic modalities is crucial for the treatment of oral squamous cell carcinoma (OSCC). Recent scientific studies have been focused on herbal medicines as potent anti-cancer drug candidates. This study is the first to investigate the cytotoxic effects and the mechanism of cell death induced by grape seed extract (GSE) in oral squamous cell carcinoma (KB cells). MTT (3-(4,5-dimetylthiazol-2-yl)-2,5 diphenyltetrazolium bromide) and trypan blue assays were performed in KB cells as well as human umbilical vein endothelial cells (HUVEC) were used to analyze the cytotoxic activity of GSE. Furthermore, the apoptosis-inducing action of the extract was determined by TUNEL, DNA fragmentation and cell death analysis. Statistical significance was determined by analysis of variance (ANOVA), followed by Duncan's test at a significance level of P≤0.05. The results showed apoptotic potential of GSE, confirmed by significant inhibition of cell growth and viability in a dose- and time- dependent manner without inducing damage to non-cancerous cell line HUVEC. The results of this study suggest that this plant contains potential bioactive compound(s) for the treatment of oral squamous cell carcinoma.
Insights
Grape seed extract (GSE) shows promising anti-cancer properties against oral squamous cell carcinoma (OSCC). This study demonstrates GSE effectively induces apoptosis in cancer cells without harming healthy cells, suggesting potential therapeutic applications.
Area of Science:
- Oncology
- Pharmacology
- Natural Products
Background:
- Oral squamous cell carcinoma (OSCC) necessitates novel therapeutic strategies.
- Herbal medicines are increasingly explored as potential anti-cancer agents.
- Grape seed extract (GSE) is a focus for its potential bioactive compounds.
Purpose of the Study:
- To investigate the cytotoxic effects of GSE on oral squamous cell carcinoma (KB cells).
- To elucidate the mechanism of cell death induced by GSE.
- To evaluate the safety of GSE on non-cancerous cells (HUVEC).
Main Methods:
- Cytotoxicity was assessed using MTT and trypan blue assays in KB cells and HUVEC.
- Apoptosis induction was analyzed via TUNEL assay, DNA fragmentation, and cell death analysis.
- Statistical analysis was performed using ANOVA and Duncan's test (P≤0.05).
Main Results:
- GSE exhibited significant dose- and time-dependent inhibition of cell growth and viability in KB cells.
- GSE induced apoptosis in oral squamous cell carcinoma cells.
- No significant damage was observed in the non-cancerous HUVEC cell line.
Conclusions:
- GSE possesses significant apoptotic potential against oral squamous cell carcinoma.
- The findings suggest GSE contains bioactive compounds effective for OSCC treatment.
- GSE demonstrates selective toxicity towards cancer cells, sparing normal cells.
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