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Sachs, U.J.* ; Andrei-Selmer, C.L.* ; Maniar, A.* ; Weiss, T.* ; Paddock, C.* ; Orlova, V.V.* ; Choi, E.Y.* ; Newman, P.J.* ; Preissner, K.T.* ; Chavakis, T.* ; Santoso, S.*

The neutrophil-specific antigen CD177 is a counter-receptor for platelet endothelial cell adhesion molecule-1 (CD31).

J. Biol. Chem. 282, 23603-23612 (2007)
DOI PMC
Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.
Human neutrophil-specific CD177 (NB1 and PRV-1) has been reported to be up-regulated in a number of inflammatory settings, including bacterial infection and granulocyte-colony-stimulating factor application. Little is known about its function. By flow cytometry and immunoprecipitation studies, we identified platelet endothelial cell adhesion molecule-1 (PECAM-1) as a binding partner of CD177. Real-time protein-protein analysis using surface plasmon resonance confirmed a cation-dependent, specific interaction between CD177 and the heterophilic domains of PECAM-1. Monoclonal antibodies against CD177 and against PECAM-1 domain 6 inhibited adhesion of U937 cells stably expressing CD177 to immobilized PECAM-1. Transendothelial migration of human neutrophils was also inhibited by these antibodies. Our findings provide direct evidence that neutrophil-specific CD177 is a heterophilic binding partner of PECAM-1. This interaction may constitute a new pathway that participates in neutrophil transmigration.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2007
HGF-reported in Year 0
ISSN (print) / ISBN 0021-9258
e-ISSN 1083-351X
Quellenangaben Volume: 282, Issue: 32, Pages: 23603-23612 Article Number: , Supplement: ,
Publisher American Society for Biochemistry and Molecular Biology
Reviewing status Peer reviewed
Institute(s) Institute of Pancreatic Islet Research (IPI)
PubMed ID 17580308
Erfassungsdatum 2007-12-31