Abstract
CMV-specific immunity is essential for control of human cytomegalovirus (HCMV) infection. Stem cell transplantation is used widely in the management of a range of diseases of the hemopoietic system. Patients are immunosuppressed profoundly in the early posttransplant period, and reactivation of cytomegalovirus (CMV) remains a significant cause of morbidity and mortality. Adoptive transfer of CMV-specific CD8+ T cell clones has been shown to reduce the rate of viral reactivation; however, the ex vivo production of cells for adoptive transfer is labor intensive and expensive. We report here a modified peptide stimulation method using CMV-specific epitope peptides to stimulate PBMCs for generation of CMV-specific CTLs. This method permits efficient amplification of CMV-specific CTLs and provides a large number of cells for FACS analysis from a single blood sample. Significantly, it achieves high frequencies of tetramer staining of CD8+ T cells allowing the data of different individuals to be easily compared and sequentially evaluated. Thus, this approach expands and selects HLA-restricted CMV-pp65-reactive T-cell lines of high specificity for potential adoptive immunotherapy.
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Ruan, G., Ma, L., Wen, Q. et al. A Modified Peptide Stimulation Method for Efficient Amplification of Cytomegalovirus (CMV)-Specific CTLs. Cell Mol Immunol 5, 197–201 (2008). https://doi.org/10.1038/cmi.2008.24
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DOI: https://doi.org/10.1038/cmi.2008.24