Generation of allo-restricted cytotoxic T lymphocytes against malignant glioma by artificial antigen-presenting cells

Cancer Lett. 2007 Oct 18;256(1):128-35. doi: 10.1016/j.canlet.2007.07.015. Epub 2007 Aug 23.

Abstract

The interleukin (IL) 13 receptor alpha2 (IL-13Ralpha2) is a glioma-restricted cell-surface epitope not otherwise detected within the central nervous system. This study reported a novel approach for targeting malignant glioma with IL-13Ralpha2-specific allo-restricted cytotoxic T cells (CTLs) induced from the peripheral blood lymphocytes (PBLs) of HLA-A2-negative healthy donors by multiple stimulations with artificial antigen-presenting cells (aAPCs) made by coating HLA-A2/pIL-13Ralpha2(345-354) tetrameric complexes, anti-CD28 antibody and CD83 molecules to cell-sized latex beads. The induced allo-restricted CTLs exhibited specific lysis against T2 cells pulsed with the peptide pIL-13Ralpha2(345-354) and HLA-A2+ glioma cells expressing IL-13Ralpha2(345-354), while HLA-A2- glioma cell lines that express IL-13Ralpha2(345-354) could not be recognized by the CTLs. The peptide-specific activity was inhibited by anti-HLA class I monoclonal antibody. These results suggested the induced allo-restricted CTLs specific for IL-13Ralpha2(345-354) peptide could be a potential target of specific immunotherapy for HLA-A2+ patients with malignant glioma.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antigen-Presenting Cells / immunology*
  • Enzyme-Linked Immunosorbent Assay
  • Epitopes / chemistry
  • Epitopes / immunology*
  • Glioma / immunology*
  • HLA-A2 Antigen / immunology
  • Humans
  • Interleukin-13 Receptor alpha2 Subunit / immunology
  • Peptide Fragments / immunology
  • Peptide Fragments / pharmacology
  • T-Lymphocytes, Cytotoxic / drug effects
  • T-Lymphocytes, Cytotoxic / immunology*
  • Tumor Cells, Cultured / immunology

Substances

  • Epitopes
  • HLA-A2 Antigen
  • Interleukin-13 Receptor alpha2 Subunit
  • Peptide Fragments