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Group name EquipeELC
Item Type Journal Article
Title Proteolytic control of TGF-? co-receptor activity by BMP-1/tolloid-like proteases revealed by quantitative iTRAQ proteomics
Creator Delolme et al.
Author Frédéric Delolme
Author Cyril Anastasi
Author Lindsay B. Alcaraz
Author Valentin Mendoza
Author Sandrine Vadon-Le Goff
Author Maya Talantikite
Author Robin Capomaccio
Author Jimmy Mevaere
Author Laëtitia Fortin
Author Dominique Mazzocut
Author Odile Damour
Author Isabelle Zanella-Cléon
Author David J. S. Hulmes
Author Christopher M. Overall
Author Ulrich Valcourt
Author Fernando Lopez-Casillas
Author Catherine Moali
Abstract The metalloproteinase BMP-1 (bone morphogenetic protein-1) plays a major role in the control of extracellular matrix (ECM) assembly and growth factor activation. Most of the growth factors activated by BMP-1 are members of the TGF-? superfamily known to regulate multiple biological processes including embryonic development, wound healing, inflammation and tumor progression. In this study, we used an iTRAQ (isobaric tags for relative and absolute quantification)-based quantitative proteomic approach to reveal the release of proteolytic fragments from the cell surface or the ECM by BMP-1. Thirty-eight extracellular proteins were found in significantly higher or lower amounts in the conditioned medium of HT1080 cells overexpressing BMP-1 and thus, could be considered as candidate substrates. Strikingly, three of these new candidates (betaglycan, CD109 and neuropilin-1) were TGF-? co-receptors, also acting as antagonists when released from the cell surface, and were chosen for further substrate validation. Betaglycan and CD109 proved to be directly cleaved by BMP-1 and the corresponding cleavage sites were extensively characterized using a new mass spectrometry approach. Furthermore, we could show that the ability of betaglycan and CD109 to interact with TGF-? was altered after cleavage by BMP-1, leading to increased and prolonged SMAD2 phosphorylation in BMP-1-overexpressing cells. Betaglycan processing was also observed in primary corneal keratocytes, indicating a general and novel mechanism by which BMP-1 directly affects signaling by controlling TGF-? co-receptor activity. The proteomic data have been submitted to ProteomeXchange with the identifier PXD000786 and doi: 10.6019/PXD000786 .
Publication Cellular and molecular life sciences: CMLS
Volume 72
Issue 5
Pages 1009-1027
Date Mar 2015
Journal Abbr Cell. Mol. Life Sci.
Language eng
DOI 10.1007/s00018-014-1733-x
ISSN 1420-9071
Library Catalog PubMed
Extra PMID: 25260970
Tags Antigens, CD, Bone Morphogenetic Protein 1, Cell Line, Tumor, Chromatography, High Pressure Liquid, first-last-corresponding, GPI-Linked Proteins, Humans, Neoplasm Proteins, Neuropilin-1, original, Peptides, Phosphorylation, Protein Binding, Proteolysis, Receptors, Transforming Growth Factor beta, Signal Transduction, Smad2 Protein, Spectrometry, Mass, Electrospray Ionization, Transforming Growth Factor beta
Date Added 2019/05/28 - 17:28:09
Date Modified 2019/05/29 - 12:24:30
Notes and Attachments PubMed entry (Attachment)


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