PMID- 18814310 OWN - NLM STAT- MEDLINE DCOM- 20090409 LR - 20120605 IS - 1932-8451 (Print) IS - 1932-8451 (Linking) VI - 68 IP - 13 DP - 2008 Nov TI - A novel role for anosmin-1 in the adhesion and migration of oligodendrocyte precursors. PG - 1503-16 LID - 10.1002/dneu.20678 [doi] AB - At embryonic stages of development, oligodendrocyte precursors (OPCs) generated in the preoptic area colonize the entire optic nerve (ON). Different factors controlling migration of ON OPCs have been identified, including secreted growth factors, morphogens and guidance cues, as well as cell adhesion molecules. We have shown previously that the soluble form of the extracellular matrix (ECM) protein anosmin-1, impairs OPC migration induced by FGF-2. In the present work, we show that anosmin-1 is expressed by both migrating OPCs and axons of the retinal ganglion cells in the embryonic ON. In vitro, we observe that OPC migration is strongly impaired by contact with anosmin-1 when used as a substrate and, in contrast to previous results, this effect is independent of FGF-2/FGFR1 signaling. We also show that OPCs preferentially adhere to anosmin-1 when compared with other ECM molecules used as substrates, and that when the endogenous anosmin-1 expressed by OPCs is blocked, OPC adhesion to all the different substrates (including anosmin-1), is significantly reduced. This novel effect of anosmin-1 on cell adhesion is also independent of FGF-2/FGFR1. We finally demonstrate that the blockade of the endogenous anosmin-1 expressed by OPCs impairs their migration. Our data suggest that the endogenous anosmin-1 expressed by OPCs is necessary for the correct adhesion of these cells to the different components of the ECM (including anosmin-1 itself), contributing to the migration of these cells. CI - (c) 2008 Wiley Periodicals, Inc. FAU - Bribian, Ana AU - Bribian A AD - Grupo de Neurobiologia del Desarrollo-GNDe, Hospital Nacional de Paraplejicos, Finca La Peraleda s/n, Toledo E-45071, Spain. FAU - Esteban, Pedro F AU - Esteban PF FAU - Clemente, Diego AU - Clemente D FAU - Soussi-Yanicostas, Nadia AU - Soussi-Yanicostas N FAU - Thomas, Jean-Leon AU - Thomas JL FAU - Zalc, Bernard AU - Zalc B FAU - de Castro, Fernando AU - de Castro F LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Dev Neurobiol JT - Developmental neurobiology JID - 101300215 RN - 0 (Antibodies) RN - 0 (Chemotactic Factors) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Gangliosides) RN - 0 (Nerve Tissue Proteins) RN - 0 (RNA, Messenger) RN - 0 (ganglioside A2B5) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 9007-34-5 (Collagen) RN - EC 2.7.10.1 (Fgfr1 protein, mouse) RN - EC 2.7.10.1 (Receptor, Fibroblast Growth Factor, Type 1) SB - IM MH - Animals MH - Animals, Newborn MH - Antibodies/pharmacology MH - Cell Adhesion/*drug effects/physiology MH - Cell Movement/*drug effects/physiology MH - Cells, Cultured MH - Chemotactic Factors/pharmacology MH - Collagen/pharmacology MH - Cricetinae MH - Cricetulus MH - Embryo, Mammalian MH - Extracellular Matrix Proteins/genetics/metabolism/*pharmacology MH - Fibroblast Growth Factor 2/pharmacology/physiology MH - Gangliosides/metabolism MH - Gene Expression Regulation, Developmental/physiology MH - Mice MH - Nerve Tissue Proteins/immunology MH - Oligodendroglia/*drug effects/physiology MH - RNA, Messenger/metabolism MH - Receptor, Fibroblast Growth Factor, Type 1/physiology MH - Retina/cytology/embryology/metabolism MH - Stem Cells/*drug effects/physiology EDAT- 2008/09/25 09:00 MHDA- 2009/04/10 09:00 CRDT- 2008/09/25 09:00 PHST- 2008/09/25 09:00 [pubmed] PHST- 2009/04/10 09:00 [medline] PHST- 2008/09/25 09:00 [entrez] AID - 10.1002/dneu.20678 [doi] PST - ppublish SO - Dev Neurobiol. 2008 Nov;68(13):1503-16. doi: 10.1002/dneu.20678.