Simvastatin enhances bone morphogenetic protein receptor type II expression

Biochem Biophys Res Commun. 2006 Jan 6;339(1):59-64. doi: 10.1016/j.bbrc.2005.10.187. Epub 2005 Nov 8.

Abstract

Statins confer therapeutic benefits in systemic and pulmonary vascular diseases. Bone morphogenetic protein (BMP) receptors serve essential signaling functions in cardiovascular development and skeletal morphogenesis. Mutations in BMP receptor type II (BMPR2) are associated with human familial and idiopathic pulmonary arterial hypertension, and pathologic neointimal proliferation of vascular endothelial and smooth muscle cells within small pulmonary arteries. In severe experimental pulmonary hypertension, simvastatin reversed disease and conferred a 100% survival advantage. Here, modulation of BMPR2 gene expression by simvastatin is characterized in human embryonic kidney (HEK) 293T, pulmonary artery smooth muscle, and lung microvascular endothelial cells (HLMVECs). A 1.4kb BMPR2 promoter containing Egr-1 binding sites confers reporter gene activation in 293T cells which is partially inhibited by simvastatin. Simvastatin enhances steady-state BMPR2 mRNA and protein expression in HLMVEC, through posttranscriptional mRNA stabilization. Simvastatin induction of BMPR2 expression may improve BMP-BMPR2 signaling thereby enhancing endothelial differentiation and function.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • Bone Morphogenetic Protein Receptors, Type II / biosynthesis*
  • Bone Morphogenetic Protein Receptors, Type II / genetics
  • Cell Line
  • Endothelial Cells / drug effects
  • Endothelial Cells / metabolism
  • Endothelium, Vascular / cytology
  • Humans
  • Hydroxymethylglutaryl-CoA Reductase Inhibitors / pharmacology*
  • Molecular Sequence Data
  • Myocytes, Smooth Muscle / drug effects
  • Myocytes, Smooth Muscle / metabolism
  • Promoter Regions, Genetic
  • RNA Processing, Post-Transcriptional
  • Simvastatin / pharmacology*
  • Up-Regulation

Substances

  • Hydroxymethylglutaryl-CoA Reductase Inhibitors
  • Simvastatin
  • BMPR2 protein, human
  • Bone Morphogenetic Protein Receptors, Type II