The human cytomegalovirus chemokine receptor US28 mediates vascular smooth muscle cell migration

Cell. 1999 Nov 24;99(5):511-20. doi: 10.1016/s0092-8674(00)81539-1.


Human cytomegalovirus (HCMV) infection of smooth muscle cells (SMCs) in vivo has been linked to a viral etiology of vascular disease. In this report, we demonstrate that HCMV infection of primary arterial SMCs results in significant cellular migration. Ablation of the chemokine receptor, US28, abrogates SMC migration, which is rescued only by expression of the viral homolog and not a cellular G protein-coupled receptor (GPCR). Expression of US28 in the presence of CC chemokines including RANTES or MCP-1 was sufficient to promote SMC migration by both chemokinesis and chemotaxis, which was inhibited by protein tyrosine kinase inhibitors. US28-mediated SMC migration provides a molecular basis for the correlative evidence that links HCMV to the acceleration of vascular disease.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Blood Vessels / injuries
  • Cell Movement / physiology*
  • Chemokine CCL2 / metabolism
  • Chemokine CCL5 / metabolism
  • Chemokines / metabolism*
  • Cytomegalovirus*
  • GTP-Binding Proteins / metabolism
  • Gene Deletion
  • Humans
  • Models, Biological
  • Muscle, Smooth, Vascular / virology*
  • Receptors, CCR2
  • Receptors, Chemokine / metabolism*
  • Signal Transduction
  • Vascular Diseases / etiology
  • Viral Proteins / metabolism


  • CCR2 protein, human
  • Chemokine CCL2
  • Chemokine CCL5
  • Chemokines
  • Receptors, CCR2
  • Receptors, Chemokine
  • Viral Proteins
  • GTP-Binding Proteins