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  • Title: Cdc2 as prognostic marker in stage UICC II colon carcinomas.
    Author: Meyer A, Merkel S, Brückl W, Schellerer V, Schildberg C, Campean V, Hohenberger W, Croner RS.
    Journal: Eur J Cancer; 2009 May; 45(8):1466-73. PubMed ID: 19223178.
    Abstract:
    PURPOSE: Cyclin-dependent kinase 2 (cdc2) controls the G2-M checkpoint and, therefore, the entrance of cells into mitosis. It might play a crucial role during tumour progression in colon carcinomas (CCA). Thus, the prognostic value of cdc2 expression and connected markers relevant for proliferation and apoptosis has to be evaluated. EXPERIMENTAL DESIGN: Punch biopsies from the tumour centre and the invasion front of 0.6mm diameter from 392 CCA stage UICC II-IV were integrated in 14 recipient paraffin blocks. After immunohistochemical staining for cdc2, p53, caspase 3 and ki-67, a present (+) and absent (-) scoring was performed in the tissue arrays. The logrank test was used to compare distant metastasis and cancer-related survival. Multivariate Cox regression analysis was done to identify independent prognostic factors for parameters with significant influence on cancer-related survival (CRS) and distant metastasis (DM). RESULTS: The pT-category (p=0.007), nodal status (p<0.001), extramural venous infiltration (p<0.001) and lymphatic vessel invasion (p=0.003) were identified as independent histological parameters for CRS. Univariate analysis relating to stage UICC II-IV CCA showed caspase 3 in the tumour centre (p=0.047) to be a prognostic marker for CRS. In stage UICC II cdc2 (p=0.041) and caspase 3 in the invasion front (p=0.026) could be identified as independent prognostic factors for CRS and DM by multivariate analysis. CONCLUSIONS: Cdc2 and caspase 3 could be identified as independent prognostic markers in stage UICC II CCA. They might be of value to select patients who should receive adjuvant treatment.
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