Article (Scientific journals)
Degradomic and yeast 2-hybrid inactive catalytic domain substrate trapping identifies new membrane-type 1 matrix metalloproteinase (MMP14) substrates: CCN3 (Nov) and CCN5 (WISP2).
Butler, Georgina S.; Connor, Andrea R.; Sounni, Nor Eddine et al.
2016In Matrix Biology
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Keywords :
CCN; Degradomics; ICAT; Inactive catalytic domain capture; MMP; Proteolysis; Substrate trap; Yeast two-hybrid
Abstract :
[en] Members of the CCN family of matricellular proteins are cytokines linking cells to the extracellular matrix. We report that CCN3 (Nov) and CCN5 (WISP2) are novel substrates of MMP14 (membrane-type 1-matrix metalloproteinase, MT1-MMP) that we identified using MMP14 "inactive catalytic domain capture" (ICDC) as a yeast two-hybrid protease substrate trapping platform in parallel with degradomics mass spectrometry screens for MMP14 substrates. CCN3 and CCN5, previously unknown substrates of MMPs, were biochemically validated as substrates of MMP14 and other MMPs in vitro-CCN5 was processed in the variable region by MMP14 and MMP2, as well as by MMP1, 3, 7, 8, 9 and 15. CCN1, 2 and 3 are proangiogenic factors yet we found novel opposing activity of CCN5 that was potently antiangiogenic in an aortic ring vessel outgrowth model. MMP14, a known regulator of angiogenesis, cleaved CCN5 and abrogated the angiostatic activity. CCN3 was also processed in the variable region by MMP14 and MMP2, and by MMP1, 8 and 9. In addition to the previously reported cleavages of CCN1 and CCN2 by several MMPs we found that MMPs 8, 9, and 1 process CCN1, and MMP8 and MMP9 also process CCN2. Thus, our study reveals additional and pervasive family-wide processing of CCN matricellular proteins/cytokines by MMPs. Furthermore, CCN5 cleavage by proangiogenic MMPs results in removal of an angiogenic brake held by CCN5. This highlights the importance of thorough dissection of MMP substrates that is needed to reveal higher-level control mechanisms beyond type IV collagen and other extracellular matrix protein remodelling in angiogenesis. SUMMARY: We find CCN family member cleavage by MMPs is more pervasive than previously reported and includes CCN3 (Nov) and CCN5 (WISP2). CCN5 is a novel antiangiogenic factor, whose function is abrogated by proangiogenic MMP cleavage. By processing CCN proteins, MMPs regulate cell responses angiogenesis in connective tissues.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Butler, Georgina S.
Connor, Andrea R.
Sounni, Nor Eddine  ;  Université de Liège > Département des sciences biomédicales et précliniques > Biologie cellulaire et moléculaire
Eckhard, Ulrich
Morrison, Charlotte J.
Noël, Agnès ;  Université de Liège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Overall, Christopher M.
Language :
English
Title :
Degradomic and yeast 2-hybrid inactive catalytic domain substrate trapping identifies new membrane-type 1 matrix metalloproteinase (MMP14) substrates: CCN3 (Nov) and CCN5 (WISP2).
Publication date :
2016
Journal title :
Matrix Biology
ISSN :
0945-053X
eISSN :
1569-1802
Publisher :
Gustav Fischer Verlag, Stuttgart, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2016 The Authors. Published by Elsevier B.V. All rights reserved.
Available on ORBi :
since 22 August 2016

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