PMID- 10508243 OWN - NLM STAT- MEDLINE DCOM- 19991026 LR - 20180424 IS - 0014-2980 (Print) IS - 0014-2980 (Linking) VI - 29 IP - 9 DP - 1999 Sep TI - The murine beta-chemokine TARC is expressed by subsets of dendritic cells and attracts primed CD4+ T cells. PG - 2684-94 AB - To investigate specific properties of dendritic cells (DC) which are not shared by other antigen-presenting cells, we compared gene expression patterns of mouse DC and macrophages by differential mRNA display. One of the cDNA identified coded for a murine homolog of the human beta-chemokine, thymus and activation-regulated chemokine (TARC). The gene is expressed in a subset of bone marrow-derived DC and is up-regulated after lipopolysaccharide (LPS) stimulation. In vivo, murine TARC (mTARC) is constitutively expressed by thymic DC, lymphnode DC and CD11c+ cells in the lung. No expression was detected in bone marrow-derived macrophages and LPS-activated B cells. Recombinant mTARC has no chemoattractant activity on naive peripheral CD4+ T cells. In contrast, mTARC induced migration of primed ovalbumin-specific CD4+ T cells with a preference for Th2 cells during the early phase of the T cell response. These observations suggest that mTARC directs migration of antigen-experienced T helper cells to DC in lymphoid as well as in non-lymphoid organs. FAU - Lieberam, I AU - Lieberam I AD - Institute for Genetics, University of Cologne, Cologne, Germany. lieberam@uni-koeln.de FAU - Forster, I AU - Forster I LA - eng SI - GENBANK/AJ242587 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Eur J Immunol JT - European journal of immunology JID - 1273201 RN - 0 (CCL17 protein, human) RN - 0 (Ccl17 protein, mouse) RN - 0 (Chemokine CCL17) RN - 0 (Chemokines, CC) RN - 0 (DNA, Complementary) SB - IM MH - Amino Acid Sequence MH - Animals MH - Bone Marrow Cells/chemistry/immunology MH - CD4-Positive T-Lymphocytes/drug effects/*immunology/metabolism MH - Chemokine CCL17 MH - Chemokines, CC/*biosynthesis/genetics/immunology MH - Cloning, Molecular MH - DNA, Complementary/isolation & purification MH - Dendritic Cells/*immunology/metabolism MH - Humans MH - Lymphocyte Activation MH - Macrophages/chemistry/immunology MH - Mice MH - Mice, Inbred C3H MH - Mice, Transgenic MH - Molecular Sequence Data MH - Sequence Homology, Amino Acid EDAT- 1999/10/03 00:00 MHDA- 1999/10/03 00:01 CRDT- 1999/10/03 00:00 PHST- 1999/10/03 00:00 [pubmed] PHST- 1999/10/03 00:01 [medline] PHST- 1999/10/03 00:00 [entrez] AID - 10.1002/(SICI)1521-4141(199909)29:09<2684::AID-IMMU2684>3.0.CO;2-Y [doi] PST - ppublish SO - Eur J Immunol. 1999 Sep;29(9):2684-94. doi: 10.1002/(SICI)1521-4141(199909)29:09<2684::AID-IMMU2684>3.0.CO;2-Y.