The Journal of Experimental Medicine
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© The Rockefeller University Press, 0022-1007/1998/7/181/ $5.00
The Journal of Experimental Medicine, Volume 188, Number 1, July 1, 1998 181-191


Articles

Epstein-Barr Virus–induced Molecule 1 Ligand Chemokine Is Expressed by Dendritic Cells in Lymphoid Tissues and Strongly Attracts Naive T Cells and Activated B Cells

Vu N. Ngo, H. Lucy Tang, and Jason G. Cyster

From the Department of Microbiology and Immunology, University of California at San Francisco, San Francisco, California 94143-0414

Movement of T and B lymphocytes through secondary lymphoid tissues is likely to involve multiple cues that help the cells navigate to appropriate compartments. Epstein-Barr virus– induced molecule 1 (EBI-1) ligand chemokine (ELC/MIP3β) is expressed constitutively within lymphoid tissues and may act as such a guidance cue. Here, we have isolated mouse ELC and characterized its expression pattern and chemotactic properties. ELC is expressed constitutively in dendritic cells within the T cell zone of secondary lymphoid tissues. Recombinant ELC was strongly chemotactic for naive (L-selectinhi) CD4 T cells and for CD8 T cells and weakly attractive for resting B cells and memory (L-selectinlo) CD4 T cells. After activation through the B cell receptor, the chemotactic response of B cells was enhanced. Like its human counterpart, murine ELC stimulated cells transfected with EBI-1/CC chemokine receptor 7 (CCR7). Our findings suggest a central role for ELC in promoting encounters between recirculating T cells and dendritic cells and in the migration of activated B cells into the T zone of secondary lymphoid tissues.

Key Words: chemokine • dendritic cells • lymphoid tissue • T zone • lymphocyte


Address correspondence to Jason G. Cyster, Department of Microbiology and Immunology, 513 Parnassus Ave., HSE301, University of California at San Francisco, San Francisco, CA 94143-0414. E-mail: cyster{at}itsa.ucsf.edu

Note added in proof. After submission of this manuscript, Kim et al. reported that human ELC is chemotactic for human T and B lymphocytes ( J. Immunol. 160:2418–2424), and Yoshida et al. demonstrated that SLC is a second ligand for CCR7 ( J. Biol. Chem. 273:7118–7122).

Abbreviations used: BLC, B lymphocyte chemoattractant; BLR, Burkitt's lymphoma receptor; CCR, CC chemokine receptor; DC, dendritic cell; DCCK, dendritic cell–derived CC chemokine; EBI-1, EBV-induced molecule 1; ELC, EBI-1 ligand chemokine; EF, elongation factor; EST, expressed sequence tag; HEV, high endothelial venules; MCP, monocyte chemoattractant protein; MIP, macrophage-inflammatory protein; PARC, pulmonary and activation–regulated chemokine; RT, reverse transcription; SDF, stromal cell–derived factor; SLC, secondary lymphoid tissue chemokine.


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