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Abstract Title:

Effect of the coffee ingredient cafestol on head and neck squamous cell carcinoma cell lines.

Abstract Source:

Strahlenther Onkol. 2015 Jun ;191(6):511-7. Epub 2015 Jan 10. PMID: 25575980

Abstract Author(s):

Ulana Kotowski, Gregor Heiduschka, Rudolf Seemann, Julia Eckl-Dorna, Rainer Schmid, Veronika Kranebitter, Isabella Stanisz, Markus Brunner, Claudia Lill, Dietmar Thurnher

Article Affiliation:

Ulana Kotowski

Abstract:

BACKGROUND AND PURPOSE: Cafestol is a diterpene molecule found in coffee beans and has anticarcinogenic properties. The aim of the study was to examine the effects of cafestol in head and neck squamous cell carcinoma (HNSCC) cells.

MATERIALS AND METHODS: Three HNSCC cell lines (SCC25, CAL27 and FaDu) were treated with increasing doses of cafestol. Then combination experiments with cisplatin and irradiation were carried out. Drug interactions and possible synergy were calculated using the combination index analysis. Clonogenic assays were performed after irradiation with 2, 4, 6 and 8 Gy, respectively, and the rate of apoptosis was measured with flow cytometry.

RESULTS: Treatment of HNSCC cells with cafestol leads to a dose-dependent reduction of cell viability and to induction of apoptosis. Combination with irradiation shows a reduction of clonogenic survival compared to each treatment method alone. In two of the cell lines a significant additive effect was observed.

CONCLUSION: Cafestol is a naturally occurring effective compound with growth-inhibiting properties in head and neck cancer cells. Moreover, it leads to a significant inhibition of colony formation.

Study Type : In Vitro Study

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