fibronectin

fibronectin
fi·bro·nec·tin .fī-brə-'nek-tən n any of a group of glycoproteins of cell surfaces, blood plasma, and connective tissue that promote cellular adhesion and migration

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n.
a large glycoprotein that acts as a host defence mechanism. In the plasma it induces phagocytosis and on the cell surface it induces protein linkage which is important in the formation of new epithelium in wound healing. It is also involved in platelet aggregation. It is concentrated in connective tissue and the endothelium of the capillaries and is a component of the extracellular matrix.

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fi·bro·nec·tin (fi″bro-nekґtin) [fibro- + nexus] any of several related adhesive glycoproteins. One form circulates in plasma, acting as an opsonin; another is a cell-surface protein that mediates cellular adhesive interactions. Fibronectins are important in connective tissue, where they cross-link to collagen, and are also involved in aggregation of platelets.

Medical dictionary. 2011.

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  • fibronectin — noun Etymology: fibr + Latin nectere to tie, bind + English in Date: 1976 any of a group of glycoproteins of cell surfaces, blood plasma, and connective tissue that promote cellular adhesion and migration …   New Collegiate Dictionary

  • fibronectin — /fuy breuh nek tin/, n. Cell Biol. a fibrous protein that binds to collagen, fibrin, and other proteins and also to the cell membranes, functioning as an anchor and connector. [1975 80; FIBRO + L nect(ere) to bind, join together (see CONNECT,… …   Universalium

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  • Fibronectin — Fi|b|ro|nec|tin [lat. fibra = Faser u. nectere = verknüpfen; ↑ in (3)] das; s, e; veraltetes Syn.: Opsonin: in tierischen Organismen weit verbreitete faserige dimere Glykoproteine vom MG 500 000, die an zellulären Haftprozessen maßgeblich… …   Universal-Lexikon

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