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dc.contributor.authorRossi, Elisa-
dc.contributor.authorSanz-Rodriguez, Francisco-
dc.contributor.authorEleno, Nélida-
dc.contributor.authorDüwell, Annette-
dc.contributor.authorBlanco, Francisco J.-
dc.contributor.authorLanga, Carmen-
dc.contributor.authorBotella, Luisa María-
dc.contributor.authorCabañas, Carlos-
dc.contributor.authorLópez-Novoa, José M.-
dc.contributor.authorBernabéu, Carmelo-
dc.identifierdoi: 10.1182/blood-2012-06-435347-
dc.identifierissn: 0006-4971-
dc.identifier.citationBlood 121: 403- 415 (2013)-
dc.description.abstractHuman endoglin is an RGD-containing transmembrane glycoprotein identified in vascular endothelial cells. Although endoglin is essential for angiogenesis and its expression is up-regulated in inflammation and at sites of leukocyte extravasation, its role in leukocyte trafficking is unknown. This function was tested in endoglin heterozygous mice (Eng+/-) and their wild-type siblings Eng+/+ treated with carrageenan or LPS as inflammatory agents. Both stimuli showed that inflammation-induced leukocyte transendothelial migration to peritoneum or lungs was significantly lower in Eng+/- than in Eng+/+ mice. Leukocyte transmigration through cell monolayers of endoglin transfectants was clearly enhanced in the presence of endoglin. Coating transwells with the RGD-containing extracellular domain of endoglin, enhanced leukocyte transmigration, and this increased motility was inhibited by soluble endoglin. Leukocytes stimulated with CXCL12, a chemokine involved in inflammation, strongly adhered to endoglincoated plates and to endoglin-expressing endothelial cells. This endoglin-dependent adhesion was abolished by soluble endoglin, RGD peptides, the anti-integrin α5β1 inhibitory antibody LIA1/2 and the chemokine receptor inhibitor AMD3100. These results demonstrate for the first time that endothelial endoglin interacts with leukocyte integrin α5β1 via its RGD motif, and this adhesion process is stimulated by the inflammatory chemokine CXCL12, suggesting a regulatory role for endoglin in transendothelial leukocyte trafficking. © 2013 by The American Society of Hematology.-
dc.description.sponsorshipMinisterio de Economia y Competitividad of Spain (SAF2010-61 827, SAF2010-15 881); Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER); Red de Investigacion Cooperativa en Enfermedades Renales (REDINDEN)-
dc.publisherAmerican Society of Hematology-
dc.titleEndothelial endoglin is involved in inflammation: Role in leukocyte adhesion and transmigration-
dc.description.versionPeer Reviewed-
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