Table 1 Cytofluorimetric analysis of xeno-free Human periodontal ligament stem cells cultured at the second passage; the data are representative of five separate experiments

Stemness markers

Oct 3/4

97.2 ± 1.3 %

Sox-2

98.4 ± 1.8 %

SSEA-4

97.3 ± 1.6 %

Surface markers

CD 13

96.1 ± 1.3 %

CD 29

97.1 ± 3.2 %

CD 44

95.2 ± 2.1 %

CD 73

96.2 ± 1.3 %

CD 90

93.1 ± 3.1 %

CD 105

97 ± 2.9 %

CD 146

96 ± 2.8 %

CD 166

95 ± 1.2 %

Hematopoietic markers

CD 14

Not detected

CD 34

Not detected

CD 45

Not detected

CD 117

Not detected

CD 133

Not detected

CD 144

Not detected

CD 271

Not detected

HLA-DR

Not detected