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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

A role for muscle LIM protein ( MLP) in vascular remodeling.

Given the well-defined role of LIM-motif containing proteins in cytoskeletal organization, cell fate, and differentiation, we hypothesized that the regulation of LIM proteins played an integral role in vascular remodeling. We screened a compendium of cDNA microarray data from rat vascular smooth muscle cells (VSMC) for novel LIM-containing targets and identified muscle LIM protein ( MLP), a gene previously thought to be only in striated muscle. Sequence analysis, RTQPCR and Western blotting reconfirmed expression of MLP in VSMC. MLP was elevated>10-fold 7 days following balloon injury in the rat carotid artery. Wire injury led to a significantly increased intima/media ratio in MLP -/- mice compared to wild-type controls (P<0.007, N=5). Fas-ligand and ceramide- induced apoptosis were significantly decreased in MLP deficient VSMC (n=6, P<0.001). Adenoviral-induced restoration of MLP significantly restored apoptotic response (N=6, P<0.001). These findings are the first to identify MLP in vascular smooth muscle and demonstrate that it plays a critical role in vascular remodeling. This is consistent with earlier findings demonstrating a role for MLP in striated muscle remodeling in response to load and stretch.[1]

References

  1. A role for muscle LIM protein (MLP) in vascular remodeling. Wang, X., Li, Q., Adhikari, N., Hall, J.L. J. Mol. Cell. Cardiol. (2006) [Pubmed]
 
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