Comprehensive Characterization of Mesenchymal Stem Cells from Human Placenta and Fetal Membrane and Their Response to Osteoactivin Stimulation

Table 1

Proportion of cell expressing MSCs specific markers. After 4 passages, every cell sorted subtype and bone marrow MSCs were stained for CD45, CD34, CD90, CD29, CD105, and CD73. 99% of the cells were CD34 and CD45 negative and more than 80% positive for the MSCs makers.

	CD90^+	CD29^+	CD105^+	CD73^+
Bone marrow	97.6%	90.9%	99.7%	98.7%
Membrane	87.6%	99.8%	96.7%	99.8%
Membrane CD29^+ CD90^+	79.3%	99.7%	96.4%	99.5%
Membrane CD29^+ CD90^−	91.8%	98%	98.1%	97.8%
Membrane CD29^− CD90^+	85.2%	99.9%	98.5%	99.4%
Placenta	91.1%	99.8%	99.2%	99.5%
Placenta CD29^+ CD90^+	79.1%	99.9%	99.1%	99.9%
Placenta CD29^− CD90^+	84.7%	99.6%	99.8%	99.5%