Table 1.

Phenotypic markers of undifferentiated ASCs.

Marker	Expression	Reference
Adhesion molecules
β1 integrin (CD29)	+	[26, 39]
α4 integrin (CD49d)	+	[13, 26]
Vascular cell adhesion molecule (VCAM; CD106)	+/-	[13, 26]
Intercellular adhesion molecule (ICAM-1; CD54)	+	[26]
Activated leukocyte adhesion molecule (ALCAM; CD166)	+	[26]
Tetraspan protein (CD9)	+	[26]
Endoglin (CD105)	+	[26]
CD34	+	[13, 26, 29]
Receptors
Hyaluronan receptor (CD44)	+	[13, 26]
Transferrin receptor (CD71)	+	[13]
Triiodothyronine (T3) receptor α	+	[40]
Surface enzymes
Neutral endopeptidase (CD10)	+	[26]
Aminopeptidase (CD13)	+	[26]
Ecto-5′-nucleotidase (CD73)	+	[40]
Cytoskeleton proteins
α-Smooth muscle actin	+	[13, 26]
Vimentin	+	[24]
Others
HLA-ABC	+	[26]
Decay accelerating factor (CD55)	+/-	[13, 26]
Protectin (CD59)	+	[13, 26]

+: positive association; -: negative association.