Table 3.

Comparable properties of CD34⁺ cells

Comparable properties of CD34+ cells	Described in:
Potential stem/progenitor cell population	HSC, MSC, muscle satellite cells, keratocytes, interstitial cells, fibrocytes, HF epithelial stem cells, vascular endothelial progenitors
Quiescent in vivo	Muscle satellite cells, keratocytes, interstitial cells, fibrocytes
Greater CFU-F capacity and high proliferative capacity in vitro	HSC, MSC, HF epithelial stem cells
Loss of CD34 expression upon “activation” or differentiation either in vivo or upon in vitro culture	MSC, muscle satellite cells, keratocytes, fibrocytes, HF epithelial stem cells
Coexpression with tissue specific markers	Muscle satellite cells, keratocytes, interstitial cells, HF epithelial stem cells, salivary gland stem cells, vascular endothelial progenitors
Transdifferentiation potential	HSC, MSC, muscle satellite cells, keratocytes, HF epithelial stem cells, vascular endothelial progenitors

Abbreviations: CD, cluster of differentiation; CFU-F, colony forming units fibroblast; HF, hair follicle; HSC, hematopoietic stem cells; MSC, multipotent mesenchymal stromal cells.