Dendritic cells expand Epstein Barr virus specific CD8+ T cell responses more efficiently than EBV transformed B cells

Hum Immunol. 2005 Sep;66(9):938-49. doi: 10.1016/j.humimm.2005.07.003. Epub 2005 Oct 7.

Abstract

Adoptive transfer of Epstein Barr virus (EBV) specific cytotoxic T lymphocytes (CTLs) has been successfully applied in the treatment of EBV associated post-transplant lymphoproliferative disease (PTLD). In most studies EBV transformed B cells (LCLs) have been used for the induction of EBV specific T cell lines. Application of this approach to other EBV associated tumors is difficult, because LCLs focus T cell expansion toward immunodominant EBV antigens that are not expressed in EBV associated Hodgkin's lymphoma and nasopharyngeal carcinoma. Therefore, we compared dendritic cells (DCs) with LCLs for CD8+ T cell stimulation against dominant and subdominant EBV antigens. DCs expanded tenfold more EBNA3A and LMP2 specific CD8+ T cells than LCL and also stimulated EBV specific CTL from PTLD patients. Both, DCs and LCLs stimulations led to the expansion of high affinity T cells, capable to target EBV transformed B cells. While LCLs and DCs expressed MHC class I and II products at similar levels, DCs showed a higher expression of costimulatory and adhesion molecules. This resulted in more efficient T cell conjugate formation with DCs than with LCLs. We propose the use of DCs for stimulation of EBV specific T cells in active or passive immunotherapy of EBV associated malignancies.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antigens, Surface
  • Antigens, Viral / immunology
  • B-Lymphocytes / immunology
  • CD8-Positive T-Lymphocytes / immunology*
  • Cell Line, Transformed
  • Dendritic Cells / immunology*
  • Herpesvirus 4, Human / immunology*
  • Humans
  • Immunotherapy, Adoptive*
  • Kidney Transplantation / adverse effects
  • Kidney Transplantation / immunology
  • Liver Transplantation / adverse effects
  • Liver Transplantation / immunology
  • Lymphocyte Activation
  • Virus Latency

Substances

  • Antigens, Surface
  • Antigens, Viral