The Journal of Experimental Medicine
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Published online 10 March 2003 doi:10.1084/jem.20021690
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© Rockefeller University Press, 0022-1007/2003/3/751 $5.00
The Journal of Experimental Medicine, Volume 197, Number 6, 751-762

Preferential Accumulation of Antigen-specific Effector CD4 T Cells at an Antigen Injection Site Involves CD62E-dependent Migration but Not Local Proliferation

R. Lee Reinhardt1, Daniel C. Bullard2, Casey T. Weaver3 and Marc K. Jenkins1

1 Department of Microbiology and the Center for Immunology, University of Minnesota, Minneapolis, MN 55455
2 Departments of Genomics and Pathobiology, University of Alabama at Birmingham, Birmingham, AL 35294
3 Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294

Address correspondence to Marc K. Jenkins, University of Minnesota, Center for Immunology, MMC 334, 420 Delaware St. S.E., Minneapolis, MN 55455. Phone: 612-626-2715; Fax: 612-625-2199; E-mail: marcj{at}mail.ahc.umn.edu

The migration of antigen-specific T cells to nonlymphoid tissues is thought to be important for the elimination of foreign antigens from the body. However, recent results showing the migration of activated T cells into many nonlymphoid tissues raised the possibility that antigen-specific T cells do not migrate preferentially to nonlymphoid tissues containing antigen. We addressed this question by tracking antigen-specific CD4 T cells in the whole body after a localized subcutaneous antigen injection. Antigen-specific CD4 T cells proliferated in the skin-draining lymph nodes and the cells that underwent the most cell divisions acquired the ability to bind to CD62P. As time passed, CD62P-binding antigen-specific CD4 T cells with interferon {gamma} production potential accumulated preferentially at the site of antigen injection but only in recipients that expressed CD62E. Surprisingly, these T cells did not proliferate in the injection site despite showing evidence of more cell divisions than the T cells in the draining lymph nodes. The results suggest that the most divided effector CD4 T cells from the lymph nodes enter the site of antigen deposition via recognition of CD62E on blood vessels and are retained there in a nonproliferative state via recognition of peptide–major histocompatibility complex II molecules.

Key Words: antigen-specific • CD4 • T cell • migration • selectin


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