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Dendritic cells initiate immune responses by ferrying antigen from the tissues to the lymphoid organs for presentation to lymphocytes. Little is known about the molecular mechanisms underlying this migratory behavior. We have identified a chemokine receptor which appears to be selectively expressed in human dendritic cells derived from CD34+ cord blood precursors, but not in dendritic cells derived from peripheral blood monocytes. When stably expressed as a recombinant protein in a variety of host cell backgrounds, the receptor shows a strong interaction with only one chemokine among 25 tested: the recently reported CC chemokine macrophage inflammatory protein 3alpha. Thus, we have designated this receptor as the CC chemokine receptor 6. The cloning and characterization of a dendritic cell CC chemokine receptor suggests a role for chemokines in the control of the migration of dendritic cells and the regulation of dendritic cell function in immunity and infection.

Type

Journal article

Journal

J Exp Med

Publication Date

15/09/1997

Volume

186

Pages

837 - 844

Keywords

Amino Acid Sequence, Animals, Base Sequence, CHO Cells, Chromosome Mapping, Cloning, Molecular, Cricetinae, DNA, Complementary, Dendritic Cells, Gene Expression, Humans, Hybrid Cells, Macrophage Inflammatory Proteins, Molecular Sequence Data, Polymerase Chain Reaction, RNA, Messenger, Receptors, CCR6, Receptors, Chemokine, Receptors, Cytokine, Recombinant Proteins, Sequence Homology, Amino Acid, Transfection