Tumor MHC class I expression improves the prognostic value of T-cell density in resected colorectal liver metastases.

Published

Journal Article

Tumor-infiltrating lymphocytes (TIL) in colorectal cancer liver metastases (CLM) have been associated with more favorable patient outcomes, but whether MHC class I (MHC-I) expression on cancer cells affects prognosis is uncertain. Immunohistochemistry was performed on a tissue microarray of 158 patients with CLM, who underwent partial hepatectomy with curative intent. Using the antibody HC-10, which detects HLA-B and HLA-C antigens and a minority of HLA-A antigens, MHC-I expression was correlated with β-2 microglobulin (β2m; r = 0.7; P < 0.001), but not with T-cell density (r < 0.32). The median follow-up for survivors was 9.7 years. High levels of MHC-I expression in tumors concomitant with high T-cell infiltration (CD3, CD4, or CD8) best identified patients with favorable outcomes, compared with patients with one or none of these immune features. The median overall survival (OS) of patients with MHC-I(hi)CD3(hi) tumors (n = 31) was 116 months compared with 40 months for the others (P = 0.001), and the median time to recurrence (TTR) was not reached compared with 17 months (P = 0.008). By multivariate analysis, MHC(hi)CD3(hi) was associated with OS and TTR independent of the standard clinicopathologic variables. An immune score that combines MHC-I expression and TIL density may be a valuable prognostic tool in the treatment of patients with CLM.

Full Text

Duke Authors

Cited Authors

  • Turcotte, S; Katz, SC; Shia, J; Jarnagin, WR; Kingham, TP; Allen, PJ; Fong, Y; D'Angelica, MI; DeMatteo, RP

Published Date

  • June 2014

Published In

Volume / Issue

  • 2 / 6

Start / End Page

  • 530 - 537

PubMed ID

  • 24894090

Pubmed Central ID

  • 24894090

Electronic International Standard Serial Number (EISSN)

  • 2326-6074

Digital Object Identifier (DOI)

  • 10.1158/2326-6066.CIR-13-0180

Language

  • eng

Conference Location

  • United States