c-Met Overexpression in Cervical Cancer, a Prognostic Factor and a Potential Molecular Therapeutic Target

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This study aimed to assess the association between pretreatment c-Met overexpression in local-regional advanced cervical cancer patients treated definitively with concurrent chemoradiation therapy (CRT) and treatment outcomes including overall survival (OS), progression-free survival (PFS), distant metastases (DM) control, and local-regional control (LC).

Patients and Methods:

This Institutional Review Board–approved study included cervical cancer patients treated definitively and consecutively with CRT. Evaluation of cytoplasmic immunoreactivity for c-Met was performed and scored semiquantitatively by 3 pathologists, blinded to the treatment outcomes, and incorporated both the intensity and percentage of immunoreactivity in invasive carcinoma (H score). Treatment outcomes were reviewed and reported. Outcomes were stratified by c-Met overexpression and tumor characteristics. OS, PFS, LC, and DC rates were obtained via the Kaplan-Meier method and differences between groups were evaluated by the log-rank test. Hazard ratios were obtained via Cox regression for both univariate and multivariate analyses.


The 5-year OS, PFS, LC, and DC were 57.18%, 48.07%, 72.11%, and 62.85%, respectively. Ten (35.7%) and 18 patients (64.3%) had c-Met H index >30 and<30, respectively. c-Met overexpression was significantly associated with worse 3- and 5-year OS (P=0.003), PFS (P=0.002), LC (P=0.01), and DC (P=0.0003). Patients with c-Met overexpression had a hazard ratio of 6.297, 5.782, 6.28, and 18.173 for the risks of death, disease progression, local recurrence, and DM, respectively.


c-Met overexpression could be a potential predictive marker and therapeutic target for local-regional advanced cervical cancer patients treated definitively with CRT.

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