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Counterbalancing anti-adhesive effects of Tenascin-C through fibronectin expression in endothelial cells.


ABSTRACT: Cellular fibronectin (FN) and tenascin-C (TNC) are prominent development- and disease-associated matrix components with pro- and anti-adhesive activity, respectively. Whereas both are present in the tumour vasculature, their functional interplay on vascular endothelial cells remains unclear. We have previously shown that basally-oriented deposition of a FN matrix restricts motility and promotes junctional stability in cultured endothelial cells and that this effect is tightly coupled to expression of FN. Here we report that TNC induces FN expression in endothelial cells. This effect counteracts the potent anti-adhesive activity of TNC and leads to the assembly of a dense highly-branched subendothelial matrix that enhances tubulogenic activity. These findings suggest that pro-angiogenic remodelling of the perivascular matrix may involve TNC-induced upregulation of FN in endothelial cells.

SUBMITTER: Radwanska A 

PROVIDER: S-EPMC5630602 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Counterbalancing anti-adhesive effects of Tenascin-C through fibronectin expression in endothelial cells.

Radwanska Agata A   Grall Dominique D   Schaub Sébastien S   Divonne Stéphanie Beghelli-de la Forest SBF   Ciais Delphine D   Rekima Samah S   Rupp Tristan T   Sudaka Anne A   Orend Gertraud G   Van Obberghen-Schilling Ellen E  

Scientific reports 20171006 1


Cellular fibronectin (FN) and tenascin-C (TNC) are prominent development- and disease-associated matrix components with pro- and anti-adhesive activity, respectively. Whereas both are present in the tumour vasculature, their functional interplay on vascular endothelial cells remains unclear. We have previously shown that basally-oriented deposition of a FN matrix restricts motility and promotes junctional stability in cultured endothelial cells and that this effect is tightly coupled to expressi  ...[more]

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