Reversible transdifferentiation of blood vascular endothelial cells to a lymphatic-like phenotype in vitro

Cooley, L. S., Handsley, M. M., Zhou, Z., Lafleur, M. A., Pennington, C. J., Thompson, Erik W., Pöschl, E., & Edwards, D. R. (2010) Reversible transdifferentiation of blood vascular endothelial cells to a lymphatic-like phenotype in vitro. Journal of Cell Science, 123(21), pp. 3808-3816.

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Abstract

Blood vascular cells and lymphatic endothelial cells (BECs and LECs, respectively) form two separate vascular systems and are functionally distinct cell types or lineages with characteristic gene expression profiles. Interconversion between these cell types has not been reported. Here, we show that in conventional in vitro angiogenesis assays, human BECs of fetal or adult origin show altered gene expression that is indicative of transition to a lymphatic-like phenotype. This change occurs in BECs undergoing tubulogenesis in fibrin, collagen or Matrigel assays, but is independent of tube formation per se, because it is not inhibited by a metalloproteinase inhibitor that blocks tubulogenesis. It is also reversible, since cells removed from 3D tubules revert to a BEC expression profile upon monolayer culture. Induction of the lymphatic-like phenotype is partially inhibited by co-culture of HUVECs with perivascular cells. These data reveal an unexpected plasticity in endothelial phenotype, which is regulated by contact with the ECM environment and/or cues from supporting cells.

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25 citations in Web of Science®

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ID Code: 72614
Item Type: Journal Article
Refereed: Yes
Additional Information: Articles free to read on journal website after 12 months
Keywords: Angiogenesis, Blood vascular, Endothelial cell, Lymphatic, LYVE-1, Pericyte, Prox-1
DOI: 10.1242/jcs.064279
ISSN: 0021-9533
Divisions: Current > Schools > School of Biomedical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Deposited On: 05 Jun 2014 05:27
Last Modified: 05 Feb 2015 00:29

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