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The Journal of Cell Biology
Article
License: CC BY NC SA
Data sources: UnpayWall
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PubMed Central
Other literature type . 2011
Data sources: PubMed Central
The Journal of Cell Biology
Article . 2011 . Peer-reviewed
Data sources: Crossref
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BMP promotes motility and represses growth of smooth muscle cells by activation of tandem Wnt pathways

Authors: Laura H. Rubinos; Euan A. Ashley; Marlene Rabinovitch; Vinicio A. de Jesus Perez; Ziad A. Ali; Xiumei Qu; Edda Spiekerkoetter; +7 Authors

BMP promotes motility and represses growth of smooth muscle cells by activation of tandem Wnt pathways

Abstract

We present a novel cell-signaling paradigm in which bone morphogenetic protein 2 (BMP-2) consecutively and interdependently activates the wingless (Wnt)–β-catenin (βC) and Wnt–planar cell polarity (PCP) signaling pathways to facilitate vascular smooth muscle motility while simultaneously suppressing growth. We show that BMP-2, in a phospho-Akt–dependent manner, induces βC transcriptional activity to produce fibronectin, which then activates integrin-linked kinase 1 (ILK-1) via α4-integrins. ILK-1 then induces the Wnt–PCP pathway by binding a proline-rich motif in disheveled (Dvl) and consequently activating RhoA-Rac1–mediated motility. Transfection of a Dvl mutant that binds βC without activating RhoA-Rac1 not only prevents BMP-2–mediated vascular smooth muscle cell motility but promotes proliferation in association with persistent βC activity. Interfering with the Dvl-dependent Wnt–PCP activation in a murine stented aortic graft injury model promotes extensive neointima formation, as shown by optical coherence tomography and histopathology. We speculate that, in response to injury, factors that subvert BMP-2–mediated tandem activation of Wnt–βC and Wnt–PCP pathways contribute to obliterative vascular disease in both the systemic and pulmonary circulations.

Keywords

Glycogen Synthase Kinase 3 beta, Myocytes, Smooth Muscle, Becaplermin, Dishevelled Proteins, Bone Morphogenetic Protein 2, Bone Morphogenetic Protein Receptors, Type II, Models, Biological, Fibronectins, Enzyme Activation, Glycogen Synthase Kinase 3, Mice, Axin Protein, Cell Movement, Neointima, Animals, Humans, Mutant Proteins, Research Articles, Aorta, Adaptor Proteins, Signal Transducing, Cell Proliferation

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    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
63
Top 10%
Top 10%
Top 10%
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