Annals of Surgical Oncology

, Volume 20, Issue 2, pp 697–702

Clinical Impact of Tumor-infiltrating Lymphocytes for Survival in Curatively Resected Stage IV Colon Cancer with Isolated Liver or Lung Metastasis

  • Won-Suk Lee
  • Myunghee Kang
  • Jeong-Heum Baek
  • Jae-Ik Lee
  • Seung Yeon Ha
Translational Research and Biomarkers

DOI: 10.1245/s10434-012-2752-1

Cite this article as:
Lee, W., Kang, M., Baek, J. et al. Ann Surg Oncol (2013) 20: 697. doi:10.1245/s10434-012-2752-1

Abstract

Background

The most reliable prognostic factor to date is tumor, node, metastasis stage. However, prognostic significance of tumor-infiltrating lymphocytes (TILs) in curatively resected stage IV colon cancer with isolated liver or lung lesion has not been clarified. The aim of this study was to assess and compare the prognostic role of TILs in curatively resected stage IV colon cancers.

Methods

Immunohistochemistry was used to assess the densities of CD8+, CD45RO+, and FOXP3+ according to tumor sites (primary tumor, liver, and lung) from 79 stage IV colon cancers. These were evaluated for association with histopathologic features and patients’ overall survival (OS).

Results

Higher density of CD45RO+ at primary and metastatic sites was associated with better patient outcomes (P = 0.009 and 0.027, respectively). The estimated 3-year OS rates for high-density CD45RO+ at metastatic and primary sites was 82.6 and 62.4 %, respectively, compared to 60.8 and 27.1 % in low-density CD45RO+. In multivariate analysis, CD45RO+ at the colon primary site (P = 0.007; relative risk 0.108; 95 % confidence interval 0.021–0.546) was the strongest prognostic factor.

Conclusions

High density of CD45RO+ TILs showed independent prognostic significance for OS. This result may help to improve the prognostication of curatively resected stage IV colon cancer.

Supplementary material

10434_2012_2752_MOESM1_ESM.docx (1.7 mb)
Supplementary material 1 (DOCX 1728 kb)

Copyright information

© Society of Surgical Oncology 2012

Authors and Affiliations

  • Won-Suk Lee
    • 1
  • Myunghee Kang
    • 2
  • Jeong-Heum Baek
    • 1
  • Jae-Ik Lee
    • 3
  • Seung Yeon Ha
    • 2
  1. 1.Department of SurgeryGil Medical Center, School of Medicine, Gachon UniversityIncheonKorea
  2. 2.Department of PathologyGil Medical Center, School of Medicine, Gachon UniversityIncheonKorea
  3. 3.Department of Thoracic SurgeryGil Medical Center, School of Medicine, Gachon UniversityIncheonKorea