Curcumin: A potential radio-enhancer in head and neck cancer
| Autor: | Rami Ben-Yosef, Avi Khafif, Akiva Vexler, Shahar Lev-Ari, Vicki Karaush, Sasha Haif, Alex Starr, Itai Barnea |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Pathology
medicine.medical_specialty medicine.diagnostic_test Cell growth business.industry medicine.disease Head and neck squamous-cell carcinoma Flow cytometry stomatognathic diseases chemistry.chemical_compound Otorhinolaryngology chemistry Growth factor receptor In vivo Cell culture Curcumin Cancer research medicine Viability assay business |
| Zdroj: | The Laryngoscope. 119:2019-2026 |
| ISSN: | 0023-852X |
| Popis: | Objectives/Hypothesis: To investigate whether curcumin enhances the cytotoxic effect of radiotherapy in head and neck squamous cell carcinoma (HNSCC). Methods: HNSCC cell lines SCC-1, SCC-9, KB, as well as A431 cell line were treated with curcumin, irradiation, or their combination. Cell viability was evaluated by XTT assay. Cyclooxygenase-2 (COX-2), epithelial growth factor receptor (EGFR), and p-Erk1/2 were measured by Western blot analysis. CD-1 athymic nude mice with orthotopic implanted SCC-1 cells, were treated with control diet, curcumin containing diet, local single-dose radiation, or combination. Results: Curcumin (IC50 range, 15–22 μM) and radiation inhibited cell viability in all cell lines were tested. The combination of curcumin and radiation resulted in additive effect. Curcumin decreased COX-2 expression and inhibited phosphorylation of EGFR in SCC-1 cells. In tumor-bearing mice the combination regimen showed a decrease in both tumor weight (25%, P = .09) and tumor size (15%, P = .23) compared to the nontreated mice. Conclusions: Curcumin inhibited HNSCC cell growth and augmented the effect of radiation in vitro and in vivo. A possible mechanism is inhibition of COX-2 expression and EGFR phosphorylation. Laryngoscope, 2009 |
| Databáze: | OpenAIRE |
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