Research Article
All-Trans Retinoic Acid Improves the Effects of Bone Marrow-Derived Mesenchymal Stem Cells on the Treatment of Ankylosing Spondylitis: An In Vitro Study
Figure 1
Identification of MSCs. (a) Phenotypic characterization based on a number of surface markers. MSCs were positive for CD29, CD44, CD90, and CD105, but negative for HLA-DR, CD34, and CD45. Red line: background fluorescence of isotype controls. Blue line: fluorescence intensity from selected markers. -axis: fluorescence intensity. -axis: cell count. (b) Trilineage differentiation.
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