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Caspase expression in oral squamous cell carcinoma

✍ Scribed by Cláudia Malheiros Coutinho-Camillo; Silvia Vanessa Lourenço; Ines Nobuko Nishimoto; Luiz Paulo Kowalski; Fernando Augusto Soares

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
933 KB
Volume
33
Category
Article
ISSN
1043-3074

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✦ Synopsis

Abstract

Background

Apoptosis is a genetically programmed form of cell death, of which caspases are the central components.

Methods

By tissue microarray of 229 cases of oral squamous cell carcinoma (OSCC), we analyzed the immunoexpression of caspases 3, 6, 7, 8, 9, and 10.

Results

All proteins that we examined were expressed in primary OSCC samples. Caspases 8 and 9 were prominently expressed, and caspases 3, 6, 7, and 10 were occasionally expressed. Disease‐free survival differed significantly between caspase 7 high‐expressing and low‐expressing patients, and our multivariate analysis suggested that expression of caspase 7 is an independent prognostic factor for patients with OSCC.

Conclusion

This study suggests that caspases regulate the tumorigenesis of OSCC and that caspase 7 expression is a predictor of locoregional recurrence of OSCC. © 2010 Wiley Periodicals, Inc. Head Neck, 2011

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