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Carcinoembryonic antigen-related cell adhesion molecule 1 modulates vascular remodeling in vitro and in vivo.
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), a cellular adhesion molecule of the Ig superfamily, is associated with early stages of angiogenesis. In vitro, CEACAM1 regulates proliferation, migration, and differentiation of murine endothelial cells. To prove that CEACAM1 is functionally involved in the regulation of vascular remodeling in vivo, we analyzed 2 different genetic models: in Ceacam1-/- mice, the Ceacam1 gene was deleted systemically, and in CEACAM1(endo+) mice, CEACAM1 was overexpressed under the control of the endothelial cell-specific promoter of the Tie2 receptor tyrosine kinase. In Matrigel plug assays, Ceacam1-/- mice failed to establish new capillaries whereas in CEACAM1(endo+) mice the implants were vascularized extensively. After induction of hind limb ischemia by femoral artery ligation, Ceacam1-/- mice showed significantly reduced growth of arterioles and collateral blood flow compared with their WT littermates. In agreement with a causal role of CEACAM1 in vascular remodeling, CEACAM1(endo+) mice exhibited an increase in revascularization and collateral blood flow after arterial occlusion. Our findings indicate that CEACAM1 expression is important for the establishment of newly formed vessels in vivo. Hence CEACAM1 could be a future target for therapeutic manipulation of angiogenesis in disease.
Authors : Horst Andrea Kristina , Ito Wulf D , Dabelstein Joachim , Schumacher Udo , Sander Heike , Turbide Claire , Brümmer Jens , Meinertz Thomas , Beauchemin Nicole , Wagener Christoph ,
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Pathways :
WP2328: Allograft rejection
WP1069: Integrin-mediated cell adhesion
WP1185: Integrin-mediated cell adhesion
WP1386: Integrin-mediated cell adhesion
WP1794: Cell surface interactions at the vascular wall
WP185: Integrin-mediated cell adhesion
WP6: Integrin-mediated cell adhesion
WP74: Integrin-mediated cell adhesion
WP832: Integrin-mediated cell adhesion
WP951: Integrin-mediated cell adhesion
WP1011: T Cell Receptor Signaling Pathway
WP1025: B Cell Receptor Signaling Pathway
WP1043: Calcium Regulation in the Cardiac Cell
WP1078: G1 to S cell cycle control
WP1083: Cell cycle
WP1130: T Cell Receptor Signaling Pathway
WP1144: B Cell Receptor Signaling Pathway
WP1159: Calcium Regulation in the Cardiac Cell
WP1195: G1 to S cell cycle control
WP1200: Cell cycle
WP1345: T Cell Receptor Signaling Pathway
WP1354: B Cell Receptor Signaling Pathway
WP1365: Calcium Regulation in the Cardiac Cell
WP1393: Cell cycle
WP1411: Cell Division: First embryonic mitosis
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Bibliography :
[16680193] Carcinoembryonic antigen-related cell adhesion molecule 1 modulates vascular remodeling in vitro and in vivo.
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