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    Endothelial cell spreading on lipid bilayers with combined integrin and cadherin binding ligands

    Journal: Bioorg. Med. Chem., Volume 68, AUG 15

    Authors: Kocer, Gulistan; Albino, Ines M. C.; Verheijden, Mark L.; Jonkheijm, Pascal

    Organizations: Netherlands Organization for Scientific Research (NWO) [NWO-VIDI 723.012.106]

    Keywords: Cell-surface interactions; Surface modification; Supported lipid bilayers; Cell-instructive; Peptide ligands

    Endothelial cells play a central role in the vascular system, where their function is tightly regulated by both cellextracellular matrix (e.g., via integrins) and cell???cell interactions (e.g., via cadherins). In this study, we incorporated cholesterol-modified integrin and N-cadherin peptide binding ligands in fluid supported lipid bilayers. Human umbilical vein endothelial cell adhesion, spreading and vinculin localization in these cells were dependent on ligand density. One composition led to observe a higher extent of cell spreading, where cells exhibited extensive lamellipodia formation and a qualitatively more distinct N-cadherin localization at the cell periphery, which is indicative of N-cadherin clustering and a mimic of cell-cell contact formation. The results can be used to reconstitute the endothelial-pericyte interface on biomedical devices and materials.
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