Abstract
Background and aims
Because the outcome of glioblastoma multiforme (GBM) remains dismal, there is an urgent need for a better molecular characterization of this malignancy. The aim of this prospective study was to investigate the prognostic impact of the expression of c-mesenchymal-epithelial transition (c-Met) a receptor tyrosine kinase implicated in expression growth, survival, motility/migration, and invasion in GMB patients managed according to the established diagnostic and therapeutic protocols.
Methods
Between May 2003 and March 2011, a total of 69 patients (33 males and 36 females; mean age: 52.2 ± 12.9 years, age range: 23–81 years) referred to our Department for the surgical removal of GBM were evaluated immunohistochemically for c-Met expression. Progression-free survival (PFS) and overall survival (OS) served as the main outcome measures.
Results
Compared with c-Met− subjects (n = 38), c-Met+ subjects (n = 31) had both a significantly lower OS (15.3 ± 2.3 vs. 22.6 ± 2.5 months, respectively, p < 0.01) and PFS (12.3 ± 2.1 vs. 19.1 ± 2.6 months, respectively, p < 0.05). After allowance for potential confounders, multivariate Cox regression analysis identified c-Met+ as an independent predictor of both OS (hazard ratio = 1.7; 95 % confidence interval = 1.2–1.9, p < 0.01) and PFS (hazard ratio = 1.6; 95 % confidence interval = 1.1–2.3, p < 0.05).
Conclusions
Our findings suggest that c-Met immunohistochemical expression is an independent predictor of outcomes in patients with GBM treated by standard of care.
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The authors declare that they have no conflict of interest relating to the publication of this manuscript.
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Olmez, O.F., Cubukcu, E., Evrensel, T. et al. The immunohistochemical expression of c-Met is an independent predictor of survival in patients with glioblastoma multiforme. Clin Transl Oncol 16, 173–177 (2014). https://doi.org/10.1007/s12094-013-1059-4
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DOI: https://doi.org/10.1007/s12094-013-1059-4