Establishment and Characterization of a Human Small Cell Osteosarcoma Cancer Stem Cell Line: A New Possible In Vitro Model for Discovering Small Cell Osteosarcoma Biology

Table 2

Expression of CD44, CD45, CD105, and CD90 in OSA3, OSA3-CSCs, and PA lines determined by flow cytometry (percentage of cells expressing the antigen).

Cell line	CD44%	CD45%	CD105%	CD90%
OSA3	99.70	0.00	0.15	14.25
OSA3-CSCs	99.74	0.00	99.52	99.39
PA	99.92	0.00	91.11	99.70