Cell and Tissue Research

, Volume 331, Issue 1, pp 125–134

Identification of very small embryonic like (VSEL) stem cells in bone marrow

  • M. Kucia
  • M. Wysoczynski
  • J. Ratajczak
  • M. Z. Ratajczak
Review

DOI: 10.1007/s00441-007-0485-4

Cite this article as:
Kucia, M., Wysoczynski, M., Ratajczak, J. et al. Cell Tissue Res (2008) 331: 125. doi:10.1007/s00441-007-0485-4

Abstract

Bone marrow (BM) develops in mammals by the end of the second/beginning of the third trimester of gestation and becomes a major hematopoietic organ in postnatal life. The α-chemokine stromal derived factor-1 (SDF-1) to CXCR4 (\( G_{{\alpha i}} \)-protein-coupled seven transmembrane-spanning chemokine receptor) axis plays a major role in BM colonization by stem cells. By the end of the second trimester of gestation, BM becomes colonized by hematopoietic stem cells (HSC), which are chemoattracted from the fetal liver in a CXCR4-SDF-1-dependent manner. Whereas CXCR4 is expressed on HSC, SDF-1 is secreted by BM stroma and osteoblasts that line BM cavities. Mounting evidence indicates that BM also contains rare CXCR4+ pluripotent stem cells (PSC). Recently, our group has identified a population of CXCR4+ very small embryonic like stem cells in murine BM and human cord blood. We hypothesize that these cells are deposited during development in BM as a mobile pool of circulating PSC that play a pivotal role in postnatal tissue turnover, both of non-hematopoietic and hematopoietic tissues.

Keywords

Oct-4NanogStage-specific embryonic antigen\( G_{{\alpha i}} \)-protein-coupled seven transmembrane-spanning chemokine receptorVery small embryonic like stem cellsEmbryonic stem cells

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • M. Kucia
    • 1
    • 2
  • M. Wysoczynski
    • 1
    • 2
  • J. Ratajczak
    • 1
    • 2
  • M. Z. Ratajczak
    • 1
    • 2
  1. 1.Stem Cell Institute at James Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleUSA
  2. 2.Department of PhysiopathologyPomeranian Medical UniversitySzczecinPoland