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  • Title: Repulsion or adhesion: receptors make the call.
    Author: Halloran MC, Wolman MA.
    Journal: Curr Opin Cell Biol; 2006 Oct; 18(5):533-40. PubMed ID: 16930978.
    Abstract:
    Repulsive signaling plays a prominent role in regulating cell-cell interactions and is fundamental to multiple developmental processes. A proper balance between repulsion from and adhesion to other cells or the extracellular matrix is also important. Semaphorin-Plexin and ephrin-Eph ligand-receptor pairs compose two major repulsive signaling systems. Recent advances have elucidated mechanisms by which Semaphorin-Plexin and ephrin-Eph signaling control repulsion versus adhesion. Semaphorins act through a complex signaling pathway to inhibit integrin-mediated adhesion, allowing cell repulsion. Ephrin-Eph interactions can directly mediate cell adhesion and several mechanisms control whether ephrin-Eph binding and signaling induces repulsion or adhesion.
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