International Journal of Colorectal Disease

, Volume 27, Issue 3, pp 277–286

Clinicopathologic features and prognostic analysis of MSI-high colon cancer

  • Chun-Chi Lin
  • Yi-Ling Lai
  • Tzu-Chen Lin
  • Wei-Shone Chen
  • Jeng-Kai Jiang
  • Shung-Haur Yang
  • Huann-Sheng Wang
  • Yuan-Tzu Lan
  • Wen-Yih Liang
  • Hui-Mei Hsu
  • Jen-Kou Lin
  • Shih-Ching Chang
Original Article

DOI: 10.1007/s00384-011-1341-2

Cite this article as:
Lin, C., Lai, Y., Lin, T. et al. Int J Colorectal Dis (2012) 27: 277. doi:10.1007/s00384-011-1341-2

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.

Keywords

Colon cancerPrognosisMicrosatelliteMSIMismatch repairReplication error

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Chun-Chi Lin
    • 1
    • 2
    • 3
  • Yi-Ling Lai
    • 1
  • Tzu-Chen Lin
    • 1
  • Wei-Shone Chen
    • 1
    • 2
  • Jeng-Kai Jiang
    • 1
    • 2
  • Shung-Haur Yang
    • 1
    • 2
  • Huann-Sheng Wang
    • 1
    • 2
  • Yuan-Tzu Lan
    • 1
    • 2
  • Wen-Yih Liang
    • 4
  • Hui-Mei Hsu
    • 5
  • Jen-Kou Lin
    • 1
    • 2
  • Shih-Ching Chang
    • 1
    • 2
  1. 1.Division of Colon and Rectal Surgery, Department of SurgeryTaipei Veterans General HospitalTaipeiRepublic of China
  2. 2.National Yang-Ming UniversityTaipeiRepublic of China
  3. 3.Department of Medical Research and EducationTaipei Veterans General HospitalTaipeiRepublic of China
  4. 4.Department of PathologyTaipei Veterans General HospitalTaipeiRepublic of China
  5. 5.Oncology Case Manager, Department of NursingTaipei Veterans General HospitalTaipeiRepublic of China