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Hewitt CR, Feldmann M. Human T cell clones present antigen. J Immunol. 1989;143(2):762-9
Hewitt, C. R., & Feldmann, M. (1989). Human T cell clones present antigen. Journal of immunology (Baltimore, Md. : 1950), 143(2), 762-9.
Hewitt, C R, and Feldmann, M. "Human T cell clones present antigen." Journal of immunology (Baltimore, Md. : 1950) vol. 143,2 (1989): 762-9.
Hewitt CR, Feldmann M. Human T cell clones present antigen. J Immunol. 1989 Jul 15;143(2):762-9. PMID: 2472452.
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J Immunol. 1989 Jul 15;143(2):762-9.

Human T cell clones present antigen.

Journal of immunology (Baltimore, Md. : 1950)

C R Hewitt, M Feldmann

Affiliations

  1. Charing Cross Sunley Research Centre, London, U.K.

PMID: 2472452

Abstract

Two human T cells clones are described which react with influenza virus hemagglutinin type H3 and synthetic peptides of H3 when presented by PBMC APC. Both T cell clones also responded to peptide Ag in the absence of additional APC suggesting that T cells can simultaneously present and respond to Ag. T cell clones could only present peptide Ag and not an appropriate strain of inactivated whole influenza virus thus indicating an inability to process Ag conventionally. Peptide presentation by T cells was dose dependent, restricted by MHC class II Ag and was dependent on the number of Ag presenting T cells per culture. Experiments with nested peptides showed that the same epitope was recognized in the presence and absence of PBMC APC. No Ag or IL-2 from the propagation procedure was carried over into assays and two-color fluorescence-activated cell sorter analysis of each clone detected no contaminating cells with the phenotype of monocytes, macrophages or B cells; in each T cell clone, all cells expressing MHC class II Ag co-expressed CD3. These date therefore provide strong evidence that human T cell clones can simultaneously present and respond to appropriate forms of Ag.

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