PMID- 15781451 OWN - NLM STAT- MEDLINE DCOM- 20050802 LR - 20231213 IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 280 IP - 23 DP - 2005 Jun 10 TI - Nectin-like protein 2 defines a subset of T-cell zone dendritic cells and is a ligand for class-I-restricted T-cell-associated molecule. PG - 21955-64 AB - Dendritic cells (DCs) are a phenotypically and functionally heterogenous population of leukocytes with distinct subsets serving a different set of specialized immune functions. Here we applied an in vitro whole cell panning approach using antibody phage display technology to identify cell-surface epitopes specifically expressed on human blood BDCA3(+) DCs. A single-chain antibody fragment (anti-1F12 scFv) was isolated that recognizes a conserved surface antigen expressed on both human BDCA3(+) DCs and mouse CD8alpha(+) DCs. We demonstrate that anti-1F12 scFv binds Nectin-like protein 2 (Necl2, Tslc1, SynCaM, SgIGSF, or Igsf4), an adhesion molecule involved in tumor suppression, synapse formation, and spermatogenesis. Thus, Necl2 defines a specialized subset of DCs in both mouse and human. We further show that Necl2 binds Class-I-restricted T-cell-associated molecule (CRTAM), a receptor primarily expressed on activated cytotoxic lymphocytes. When present on antigen presenting cells, Necl2 regulates IL-22 expression by activated CD8(+) T-cells. We propose that Necl2/CRTAM molecular pair could regulate a large panel of cell/cell interactions both within and outside of the immune system. FAU - Galibert, Laurent AU - Galibert L AD - Department of Molecular Sciences, Amgen Inc., 1201 Amgen Court, Seattle, WA 98119-3105, USA. FAU - Diemer, Geoffrey S AU - Diemer GS FAU - Liu, Zhi AU - Liu Z FAU - Johnson, Richard S AU - Johnson RS FAU - Smith, Jeffrey L AU - Smith JL FAU - Walzer, Thierry AU - Walzer T FAU - Comeau, Michael R AU - Comeau MR FAU - Rauch, Charles T AU - Rauch CT FAU - Wolfson, Martin F AU - Wolfson MF FAU - Sorensen, Rick A AU - Sorensen RA FAU - Van der Vuurst de Vries, Anne-Renee AU - Van der Vuurst de Vries AR FAU - Branstetter, Daniel G AU - Branstetter DG FAU - Koelling, Raymond M AU - Koelling RM FAU - Scholler, John AU - Scholler J FAU - Fanslow, William C AU - Fanslow WC FAU - Baum, Peter R AU - Baum PR FAU - Derry, Jonathan M AU - Derry JM FAU - Yan, Wei AU - Yan W LA - eng PT - Journal Article DEP - 20050321 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Cadm1 protein, mouse) RN - 0 (Cell Adhesion Molecule-1) RN - 0 (Cell Adhesion Molecules) RN - 0 (Immunoglobulins) RN - 0 (Interleukins) RN - 0 (Ligands) RN - 0 (Membrane Proteins) RN - 0 (Peptide Library) RN - 0 (RNA, Messenger) RN - 0 (Recombinant Fusion Proteins) RN - 0 (class-I restricted T cell-associated molecule) RN - 9002-93-1 (Octoxynol) SB - IM MH - Animals MH - Blotting, Western MH - CD8-Positive T-Lymphocytes/immunology MH - Cell Adhesion MH - Cell Adhesion Molecule-1 MH - Cell Adhesion Molecules MH - Cell Aggregation MH - Cell Line, Tumor MH - Cell Membrane/metabolism MH - Cell Separation MH - Coculture Techniques MH - Dendritic Cells/*cytology MH - Electrophoresis, Polyacrylamide Gel MH - Female MH - Flow Cytometry MH - Humans MH - Immune System/physiology MH - Immunoblotting MH - Immunoglobulins/*metabolism/*physiology MH - Immunoprecipitation MH - Interleukins/biosynthesis MH - Lentivirus/genetics MH - Leukocytes/metabolism MH - Ligands MH - Lymphocytes/cytology MH - Mass Spectrometry MH - Membrane Proteins/metabolism/*physiology MH - Mice MH - Mice, Inbred C57BL MH - Octoxynol/pharmacology MH - Peptide Library MH - Phenotype MH - Polymerase Chain Reaction MH - Protein Binding MH - Protein Structure, Tertiary MH - RNA, Messenger/metabolism MH - Recombinant Fusion Proteins/metabolism MH - Spleen/metabolism MH - T-Lymphocytes/*metabolism MH - Interleukin-22 EDAT- 2005/03/23 09:00 MHDA- 2005/08/03 09:00 CRDT- 2005/03/23 09:00 PHST- 2005/03/23 09:00 [pubmed] PHST- 2005/08/03 09:00 [medline] PHST- 2005/03/23 09:00 [entrez] AID - S0021-9258(20)69139-6 [pii] AID - 10.1074/jbc.M502095200 [doi] PST - ppublish SO - J Biol Chem. 2005 Jun 10;280(23):21955-64. doi: 10.1074/jbc.M502095200. Epub 2005 Mar 21.