Immunoprecipitation of cell surface structures of cloned cytotoxic T lymphocytes by clone-specific antisera

David M Kranz, D. H. Sherman, M. V. Sitkovsky, M. S. Pasternack, H. N. Eisen

Research output: Contribution to journalArticle

Abstract

Clones of cytotoxic T lymphocytes (CTL) differ in their specific reactivity with diverse target cell antigens. To learn about the uniqueness of individual CTL clones we injected rats and mice with cloned CTL in an effort to prepare clone-specific antisera and to analyze the CTL surface molecules that were immunoprecipitated by these antisera. Three clones were studied. They were all derived from BALB.B mice and were specific for antigens encoded by the major histocompatibility complex of the H-2(d) haplotype. Antisera raised in rats against individual clones contained antibodies to lymphocyte function-associated antigen type 1 (LFA-1) and inhibited the cytotoxic activity of all of the clones. In contrast, BALB/c and BALB.K mice injected with individual clones consistently yielded alloantisera that were clone specific in their ability to inhibit CTL-mediated lysis of target cells (P815). In addition, these alloantisera immunoprecipitated from extracts of 125I-radiolabeled CTL a disulfide-bonded dimer consisting of ≃45-kilodalton subunits. This dimer resembles the putative T-cell antigen-recognition receptor recently identified in several laboratories. The alloantisera also immunoprecipitated CTL surface molecules that were associated with β2-microglobulin and that differed in apparent molecular mass (37-38 kilodaltons) in different clones.

Original languageEnglish (US)
Pages (from-to)573-577
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume81
Issue number2 I
DOIs
StatePublished - Jan 1 1984
Externally publishedYes

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Cytotoxic T-Lymphocytes
Immunoprecipitation
Immune Sera
Clone Cells
Antigens
Lymphocyte Function-Associated Antigen-1
T-Cell Antigen Receptor
Major Histocompatibility Complex
Disulfides
Haplotypes
Antibodies

ASJC Scopus subject areas

  • General

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Immunoprecipitation of cell surface structures of cloned cytotoxic T lymphocytes by clone-specific antisera. / Kranz, David M; Sherman, D. H.; Sitkovsky, M. V.; Pasternack, M. S.; Eisen, H. N.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 81, No. 2 I, 01.01.1984, p. 573-577.

Research output: Contribution to journalArticle

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