Efficient induction of cytotoxic T lymphocytes specific to hepatocellular carcinoma using HLA-A2-restricted MAGE-n peptide in vitro

Cancer Lett. 2004 Aug 10;211(2):219-25. doi: 10.1016/j.canlet.2004.02.013.

Abstract

MAGE-n is a new member of MAGE gene family and has been demonstrated closely associated with hepatocellular carcinoma (HCC). In this study, MAGE-n-derived peptide-specific cytotoxic T lymphocytes (CTL) were induced from the peripheral blood mononuclear cells of healthy donors by multiple stimulations with HLA-A2-restricted MAGE-n peptide-pulsed T2 cells. The induced CTLs exhibited specific lysis against T2 cells pulsed with the peptide and HLA-A2+ HCC cells expressing MAGE-n, while HLA-A2+ HCC cell lines that did not express MAGE-n could not be recognized by the CTLs. The peptide-specific activity was inhibited by anti-MHC class I monoclonal antibody. These results suggested the MAGE-n peptide could be a potential target of specific immunotherapy for HLA-A2 patients with HCC.

MeSH terms

  • Antibodies, Monoclonal / immunology
  • Antigens, Neoplasm / immunology*
  • Antigens, Neoplasm / pharmacology*
  • Carcinoma, Hepatocellular / immunology*
  • Cell Line
  • HLA-A2 Antigen / immunology*
  • Humans
  • Immunotherapy / methods
  • Liver Neoplasms / immunology*
  • Lymphocyte Activation*
  • Neoplasm Proteins*
  • Peptides
  • T-Lymphocytes, Cytotoxic / physiology*

Substances

  • Antibodies, Monoclonal
  • Antigens, Neoplasm
  • HLA-A2 Antigen
  • MAGEA6 protein, human
  • Neoplasm Proteins
  • Peptides