Detailed analysis of cytomegalovirus (CMV)-specific T cells expanded for adoptive immunotherapy of CMV infection following allogeneic stem cell transplantation for malignant disease.

Published

Journal Article

BACKGROUND: Cytomegalovirus (CMV) infection and its treatment causes significant morbidity following allogeneic stem cell transplantation (SCT) for malignancies. We studied the phenotype, function and growth kinetics of CMV pp65 antigen (Ag)-specific T cells expanded in a short-term culture for adoptive therapy. METHODS: Peripheral blood mononuclear cells (PBMC) from CMV-seropositive donors were cultured in various conditions with CMV pp65((495-503)) peptide to determine the most effective method for generating CMV-specific T cells. CMV-expanded cultures were tested for frequency, phenotype and functionality using peptide-MHC tetramer analysis, cytokine flow cytometry and cytolytic assays. A patient undergoing allogeneic SCT was administered CMV pp65-specific T cells generated from the donor based on these data, and recipient PBMC were analyzed following T-cell infusion. RESULTS: CMV pp65-specific T cells were consistently generated from CMV-seropositive donors at high frequencies (20-40% of CD8+ T cells), secreted interferon-gamma (IFN-gamma) in response to CMV peptide and had lytic activity against CMV peptide-expressing targets. Cultured CMV-specific T cells were infused into a SCT recipient without toxicity. DISCUSSION: Stimulating donor PBMC to generate functional, Ag-specific T cells for infusion into SCT recipients was accomplished consistently using readily available technology. We observed no toxicity in one patient receiving T cells and were able to monitor infused cells. These findings support further study of this approach as a prophylaxis against the risk of infection in patients receiving allogeneic transplantation from CMV-seropositive donors.

Full Text

Duke Authors

Cited Authors

  • Hobeika, A; Osada, T; Serra, D; Peplinski, S; Hanson, K; Tanaka, Y; Niedzwiecki, D; Chao, N; Rizzieri, D; Lyerly, H; Clay, T; Morse, M

Published Date

  • 2008

Published In

Volume / Issue

  • 10 / 3

Start / End Page

  • 289 - 302

PubMed ID

  • 18418774

Pubmed Central ID

  • 18418774

Electronic International Standard Serial Number (EISSN)

  • 1477-2566

Digital Object Identifier (DOI)

  • 10.1080/14653240801927040

Language

  • eng

Conference Location

  • England