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Colom, B.* ; Poitelon, Y.* ; Huang, W.* ; Woodfin, A.* ; Averill, S.* ; del Carro, U.* ; Zambroni, D.* ; Brain, S.D.* ; Perretti, M.* ; Ahluwalia, A.* ; Priestley, J.V.* ; Chavakis, T.* ; Imhof, B.A.* ; Feltri, M.L.* ; Nourshargh, S.*

Schwann cell-specific JAM-C-deficient mice reveal novel expression and functions for JAM-C in peripheral nerves.

FASEB J. 26, 1064-1076 (2012)
DOI Verlagsversion bestellen
Junctional adhesion molecule-C (JAM-C) is an adhesion molecule expressed at junctions between adjacent endothelial and epithelial cells and implicated in multiple inflammatory and vascular responses. In addition, we recently reported on the expression of JAM-C in Schwann cells (SCs) and its importance for the integrity and function of peripheral nerves. To investigate the role of JAM-C in neuronal functions further, mice with a specific deletion of JAM-C in SCs (JAM-C SC KO) were generated. Compared to wild-type (WT) controls, JAM-C SC KO mice showed electrophysiological defects, muscular weakness, and hypersensitivity to mechanical stimuli. In addressing the underlying cause of these defects, nerves from JAM-C SC KO mice were found to have morphological defects in the paranodal region, exhibiting increased nodal length as compared to WTs. The study also reports on previously undetected expressions of JAM-C, namely on perineural cells, and in line with nociception defects of the JAM-C SC KO animals, on finely myelinated sensory nerve fibers. Collectively, the generation and characterization of JAM-C SC KO mice has provided unequivocal evidence for the involvement of SC JAM-C in the fine organization of peripheral nerves and in modulating multiple neuronal responses.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0892-6638
e-ISSN 1530-6860
Zeitschrift FASEB Journal
Quellenangaben Band: 26, Heft: 3, Seiten: 1064-1076 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Bethesda, Md.
Begutachtungsstatus Peer reviewed
Institut(e) Institute for Pancreatic Beta Cell Research (IPI)