SILAC-based proteomics of human primary endothelial cell morphogenesis unveils tumor angiogenic markers

Zanivan, S. , Maione, F., Hein, M. Y., Hernandez-Fernaud, J. R., Ostasiewicz, P., Giraudo, E. and Mann, M. (2013) SILAC-based proteomics of human primary endothelial cell morphogenesis unveils tumor angiogenic markers. Molecular and Cellular Proteomics, 12(12), pp. 3599-3611. (doi:10.1074/mcp.M113.031344)

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Publisher's URL: http://dx.doi.org/10.1074/mcp.M113.031344

Abstract

Proteomics has been successfully used for cell culture on dishes, but more complex cellular systems have proven to be challenging and so far poorly approached with proteomics. Because of the complexity of the angiogenic program, we still do not have a complete understanding of the molecular mechanisms involved in this process, and there have been no in depth quantitative proteomic studies. Plating endothelial cells on matrigel recapitulates aspects of vessel growth, and here we investigate this mechanism by using a spike-in SILAC quantitative proteomic approach. By comparing proteomic changes in primary human endothelial cells morphogenesis on matrigel to general adhesion mechanisms in cells spreading on culture dish, we pinpoint pathways and proteins modulated by endothelial cells. The cell-extracellular matrix adhesion proteome depends on the adhesion substrate, and a detailed proteomic profile of the extracellular matrix secreted by endothelial cells identified CLEC14A as a matrix component, which binds to MMRN2. We verify deregulated levels of these proteins during tumor angiogenesis in models of multi-stage carcinogenesis. This is the most in depth quantitative proteomic study of endothelial cell morphogenesis, which shows the potential of applying high accuracy quantitative proteomics to in vitro models of vessel growth to shed new light on mechanisms that accompany pathological angiogenesis.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Zanivan, Professor Sara Rossana and Hernandez, Dr Juan
Authors: Zanivan, S., Maione, F., Hein, M. Y., Hernandez-Fernaud, J. R., Ostasiewicz, P., Giraudo, E., and Mann, M.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cancer Sciences
Journal Name:Molecular and Cellular Proteomics
Publisher:American Society for Biochemistry and Molecular Biology
ISSN:1535-9476
ISSN (Online):1535-9484
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