Immunobiology of T cell responses to Mls-locus-disparate stimulator cells. III. Helper and cytolytic functions of cloned, Mls-reactive T cell lines
Mls-specific T cell clones derived by limiting dilution were tested for cytotoxic activity in a lectin-dependent /sup 51/Cr-release assay. All the T cell clones tested were cytotoxic in such an assay in apparent contrast to previous reports (1, 2). However, only those target cells sensitive to cytolysis by other L3T4a/sup +/ cytolytic T cells (3) were killed by Mls-specific T cell clones in short term /sup 51/Cr-release assays, possibly explaining this discrepancy. All the T cell clones tested were L3T4a/sup +/,Lyt-2/sup -/ and stimulated B cells from Mls strains of mice to proliferate and secrete immunoglobulin. Furthermore, lysis of innocent bystander targets was observed when the T cells were stimulated with Mls-disparate stimulator cells. These results are consistent with those obtained with L3T4a/sup -/T cells specific for protein antigen:self Ia and that express cytotoxic potential (3).
- Research Organization:
- Yale Univ. School of Medicine, New Haven, CT
- OSTI ID:
- 7092168
- Journal Information:
- J. Immunol.; (United States), Vol. 136:1
- Country of Publication:
- United States
- Language:
- English
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