Periostin: A Downstream Mediator of EphB4-Induced Osteogenic Differentiation of Human Bone Marrow-Derived Mesenchymal Stem Cells

Figure 1

MSC isolation and evaluation of POSTN expression. (a) The purity of MSCs was verified by FACS according to positive staining for CD73, CD90, CD105, and CD166 and negative staining for CD34 and CD45. (b) The level and localization of POSTN expression within MSCs were detected by immunohistochemistry (magnification, ×100).

(a)

(b)