Table of Contents
ISRN Neuroscience
Volume 2013, Article ID 626290, 5 pages
http://dx.doi.org/10.1155/2013/626290
Research Article

Caspase-3 and Survivin Expression in Primary Atypical and Malignant Meningiomas

1Department of Neurosurgery, University Medical Center Ljubljana, Zaloska 7, 1525 Ljubljana, Slovenia
2Génomique Fonctionnelle des Tumeurs Solides, Unité INSERM U674, 75010 Paris, France

Received 14 November 2012; Accepted 4 December 2012

Academic Editors: I. Dujmovic and S. Rosahl

Copyright © 2013 Andrej Vranic. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. Information about possible prognostic factors of the survival of patients with atypical and malignant meningiomas (AMM) is sparse. The aim of our study was to evaluate prognostic significance of apoptotic marker caspase-3 and apoptotic inhibitor survivin in a series of primary AMM. Methods. 86 AMM (76 atypical and 10 malignant) were analyzed. Caspase-3 and survivin expression was evaluated immunohistochemically. The correlation between caspase-3, survivin, and other possible factors of meningioma recurrence was evaluated. Uni- and multivariate recurrence-free survival (RFS) and overall survival (OS) analyses were performed. Results. The intensity of caspase-3 expression correlated with the tumor grade ( ), the proliferation index ( ), and the mitotic count ( ). Survivin tended to be more expressed in female patients ( ). Survivin expression was stronger in malignant compared to atypical meningiomas, however, the difference was not statistically important ( ). Neither survivin nor caspase-3 expression significantly predicted OS or RFS in patients with AMM. Conclusions. Strong caspase-3 expression on AMM cells could reflect a cellular attempt at the homeostatic autoregulation of the tumor size. Survivin expression on AMM cells is similar to the survivin expression reported on benign meningiomas. Caspase-3 and survivin expression has no prognostic significance on the survival of patients with AMM.