Cloned lines of human cytotoxic T lymphocytes with specificity for influenza virus.
The generation of human cytotoxic T cell clones with specificity for influenza virus and some of their characteristics are described. The clones were generated by limiting dilution of peripheral blood lymphocytes after two in vitro stimulations with autologous influenza A/USSR virus-infected cells and were grown in T cell growth factor. The majority of the virus-specific clones showed cross-reactivity for different influenza A virus subtypes but did not recognize influenza B virus-infected cells. The HLA specificity of two clones was further analyzed. One clone, LL33, was specific for HLA-Bw60, the other, clone WH5, for HLA-A1. Clone WH5 also seemed to recognize the serologically related HLA-A26 as restriction element for the recognition of the viral antigen. Whereas the virus-specific CTL clones had the OKT3+,4-,8+ phenotype, another clone, WH 49, exhibiting natural killer-like activity, was found to have the OKT3+,4+,8- phenotype.[1]References
- Cloned lines of human cytotoxic T lymphocytes with specificity for influenza virus. Fleischer, B. J. Immunol. (1982) [Pubmed]
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