Enhanced endothelial motility and multicellular sprouting is mediated by the scaffold protein TKS4

Elod Mehes, Monika Barath, Marton Gulyas, Edina Bugyik, M. Geiszt, Arpad Szoor, A. Lányi, A. Czirók

Research output: Contribution to journalArticle

Abstract

Endothelial cell motility has fundamental role in vasculogenesis and angiogenesis during developmental or pathological processes. Tks4 is a scaffold protein known to organize the cytoskeleton of lamellipodia and podosomes, and thus modulating cell motility and invasion. In particular, Tks4 is required for the localization and activity of membrane type 1-matrix metalloproteinase, a key factor for extracellular matrix (ECM) cleavage during cell migration. While its role in transformed cells is well established, little is known about the function of Tks4 under physiological conditions. In this study we examined the impact of Tks4 gene silencing on the functional activity of primary human umbilical vein endothelial cells (HUVEC) and used time-lapse videomicrosopy and quantitative image analysis to characterize cell motility phenotypes in culture. We demonstrate that the absence of Tks4 in endothelial cells leads to impaired ECM cleavage and decreased motility within a 3-dimensional ECM environment. Furthermore, absence of Tks4 also decreases the ability of HUVEC cells to form multicellular sprouts, a key requirement for angiogenesis. To establish the involvement of Tks4 in vascular development in vivo, we show that loss of Tks4 leads sparser vasculature in the fetal chorion in the Tks4-deficient ‘nee’ mouse strain.

Original languageEnglish
Article number14363
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - Dec 1 2019

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Cell Movement
Extracellular Matrix
Human Umbilical Vein Endothelial Cells
Proteins
Endothelial Cells
Matrix Metalloproteinase 14
Chorion
Pseudopodia
Gene Silencing
Pathologic Processes
Cytoskeleton
Blood Vessels
Phenotype

ASJC Scopus subject areas

  • General

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Enhanced endothelial motility and multicellular sprouting is mediated by the scaffold protein TKS4. / Mehes, Elod; Barath, Monika; Gulyas, Marton; Bugyik, Edina; Geiszt, M.; Szoor, Arpad; Lányi, A.; Czirók, A.

In: Scientific reports, Vol. 9, No. 1, 14363, 01.12.2019.

Research output: Contribution to journalArticle

Mehes, Elod ; Barath, Monika ; Gulyas, Marton ; Bugyik, Edina ; Geiszt, M. ; Szoor, Arpad ; Lányi, A. ; Czirók, A. / Enhanced endothelial motility and multicellular sprouting is mediated by the scaffold protein TKS4. In: Scientific reports. 2019 ; Vol. 9, No. 1.
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