Bone-marrow-derived mesenchymal stem cells as a target for cytomegalovirus infection: implications for hematopoiesis, self-renewal and differentiation potential

Virology. 2007 Mar 30;360(1):6-16. doi: 10.1016/j.virol.2006.09.017. Epub 2006 Nov 17.

Abstract

Mesenchymal stem cells (MSCs) in bone marrow (BM) regulate the differentiation and proliferation of adjacent hematopoietic precursor cells and contribute to the regeneration of mesenchymal tissues, including bone, cartilage, fat and connective tissue. BM is an important site for the pathogenesis of human cytomegalovirus (HCMV) where the virus establishes latency in hematopoietic progenitors and can transmit after reactivation to neighboring cells. Here we demonstrate that BM-MSCs are permissive to productive HCMV infection, and that HCMV alters the function of MSCs: (i) by changing the repertoire of cell surface molecules in BM-MSCs, HCMV modifies the pattern of interaction between BM-MSCs and hematopoietic cells; (ii) HCMV infection of BM-MSCs undergoing adipogenic or osteogenic differentiation impaired the process of differentiation. Our results suggest that by altering BM-MSC biology, HCMV may contribute to the development of various diseases.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bone Marrow Cells / cytology
  • Bone Marrow Cells / physiology
  • Bone Marrow Cells / virology*
  • Cell Differentiation
  • Cells, Cultured
  • Cytomegalovirus / pathogenicity
  • Cytomegalovirus / physiology*
  • Cytomegalovirus Infections / virology*
  • Hematopoiesis
  • Hematopoietic Stem Cells / metabolism
  • Humans
  • Membrane Proteins / metabolism
  • Mesenchymal Stem Cells / cytology
  • Mesenchymal Stem Cells / physiology
  • Mesenchymal Stem Cells / virology*
  • Virulence

Substances

  • Membrane Proteins