Clinicopathologic features and prognostic analysis of MSI-high colon cancer.
Int J Colorectal Dis
; 27(3): 277-86, 2012 Mar.
Article
em En
| MEDLINE
| ID: mdl-22076610
ABSTRACT
PURPOSE:
The objectives of the study were to estimate the incidence and clarify the clinicopathologic feature of sporadic microsatellite instability (MSI)-high (MSI-H) colon cancer. Furthermore, the role of MSI in colon cancer prognosis was also investigated.METHODS:
Microsatellite status was identified by genotyping. The clinicopathologic differences between two groups (MSI-H vs. MSI-L/S) and the prognostic value of MSI were analyzed.RESULTS:
From 1993 to 2006, 709 sporadic colon cancer patients were enrolled. MSI-H colon cancers showed significant association with poorly differentiated (28.3% vs. 7.2%, p = 0.001), proximally located (76.7% vs. 34.5%, p = 0.001), more high mucin-containing tumor (10.0% vs. 5.1%, p = 0.001) and female predominance (56.7% vs. 30.2%, p = 0.001). In multivariate analysis, MSI-H is an independent factor for better overall survival (HR, 0.459; 95% CI, 0.241-0.872, p = 0.017).CONCLUSIONS:
Based on the hospital-based study, MSI-H colon cancers demonstrated distinguished clinicopathologic features from MSI-L/S colon cancers. MSI-H is an independent favorable prognostic factor for overall survival in colon cancer.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Adenocarcinoma
/
Neoplasias do Colo
/
Instabilidade de Microssatélites
Tipo de estudo:
Prognostic_studies
Limite:
Aged80
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article