Oligoclonal expansion of major histocompatibility complex class I-restricted cytolytic T lymphocytes during a primary immune response in vivo: direct monitoring by flow cytometry and polymerase chain reaction.
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| Abstract |
Previous T cell receptor (TCR) sequence analysis of a panel of 23 H-2Kd restricted cytotoxic T lymphocyte (CTL) clones recognizing the decapeptide HLA-CW3 170-179 revealed a striking conservation of TCR structure, in that all clones examined used V beta 10 and J alpha pHDS58 segments. We show here that the primary response in vivo after intraperitoneal injection of DBA/2 mice with HLA-CW3 expressing transfectants of syngeneic P815 (H-2d) tumor cells is characterized by a dramatic expansion of CD8+ V beta 10+ CTL in the peritoneal cavity and draining (mesenteric) lymph node, as well as in peripheral blood. Additional analysis of TCR on HLA-CW3 immune populations by flow cytometry and polymerase chain reaction further indicates that the vast majority of responding CD8+ cells express restricted V alpha domains, a dominant J alpha segment (pHDS58), and a conserved CDR3 length for both alpha and beta chains. This novel system provides a unique opportunity to directly monitor an oligoclonal primary antigen specific immune response in vivo at the single cell level independently of functional assays.
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| Authors | H R MacDonald, J L Casanova, J L Maryanski, J C Cerottini |
| Journal | The Journal of experimental medicine (J Exp Med) Vol. 177 Issue 5 Pg. 1487-92 (May 01 1993) ISSN: 0022-1007 [Print] United States |
| PMID | 8478619 (Publication Type: Journal Article) |
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