Correlation between the tumoral expression of β3-integrin and outcome in cervical cancer patients who had undergone radiotherapy

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Abstract

Integrins are cell-surface receptors, which mediate cell-to-cell and cell-to-extracellular matrix adhesion. Besides playing an important role in tumour angiogenesis, β3-integrin is also expressed in several types of epithelial cancer cells. It was the purpose of the present study to evaluate the prognostic value of β3-integrin expression in patients with cervical cancer. Biopsies were taken from 82 patients with squamous cell or adenocarcinomas of the uterine cervix who had undergone external-beam radiotherapy with or without brachytherapy. These tissue samples were analysed immunohistochemically for the expression of β3-integrin. The impact of immunoreactivity for β3-integrin on survival end points was assessed by univariate and multivariate analyses, and its correlation with clinicopathological characteristics evaluated by crosstabulations. β3-integrin was expressed in 61% (50 of 82) of the patients. Kaplan-Meier curves revealed local progression-free survival, distant metastasis-free survival and cause-specific survival to be significantly shorter (P-values according to the log-rank test: 0.002, 0.04 and 0.01, respectively) in patients with β3-integrin expression. The prognostic impact of this parameter was even higher than for other well-known prognostic parameters and remained statistically significant in the multivariate analyses. β3-integrin, which is expressed in the majority of patients with advanced cervical cancer, has a significant prognostic impact on outcome according to univariate and multivariate analyses. © Cancer Research UK.

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APA

Gruber, G., Hess, J., Stiefel, C., Aebersold, D. M., Zimmer, Y., Greiner, R. H., … Djonov, V. (2005). Correlation between the tumoral expression of β3-integrin and outcome in cervical cancer patients who had undergone radiotherapy. British Journal of Cancer, 92(1), 41–46. https://doi.org/10.1038/sj.bjc.6602278

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