Volume 22, Issue 1 pp. 115-122
Article
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Memory in helper T cells of minor histocompatibility antigens, revealed in vivo by alloimmunizations in combination with Thy-1 antigen

Elizabeth Lightstone

Elizabeth Lightstone

Imperial Cancer Research Fund Tumour Immunology Unit, University College London, London

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Jacqueline Marvel

Jacqueline Marvel

Imperial Cancer Research Fund Tumour Immunology Unit, University College London, London

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Avrion Mitchison

Corresponding Author

Avrion Mitchison

Imperial Cancer Research Fund Tumour Immunology Unit, University College London, London

Deutsches Rheuma-Forschungszentrum Berlin, Berlin

Deutsches Rheuma-Forschungszentrum Berlin, Am Kleinen Wannsee 5, D-1000 Berlin 39, FRGSearch for more papers by this author
First published: January 1992
Citations: 13

Abstract

A cooperative antibody response in which T helper (Th) cells recognize minor histocompatibility antigens (mha) and B cells recognize Thy-1 antigen, is used to explore memory in the T cell compartment. In contrast to B cell memory, Th memory reaches a plateau rapidly, although Th memory of Thy-1 itself (or an associated antigen) behaves exceptionally in this respect. The plateau then extends over several weeks at least. Single mha, among them H-Y, generate detectable memory. Incompatible H-2 antigens, including class I antigens on their own, inhibit this response through what appears to be a mechanism of intracellular antigenic competition. Antigen presentation in this system is by host cells, as judged by lack of donor-specific restriction. Memory resides in both the CD45RA+ and CD45RA compartments, although the majority of memory Th cells have the latter phenotype.

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