Age-Related Changes in Nucleus Pulposus Mesenchymal Stem Cells: An In Vitro Study in Rats

Figure 2

Immunophenotypes of NPMSCs (). (a) Representative graphs of immunophenotypes of young and old NPMSCs detected by flow cytometry. (b) Both young and old NPMSCs were highly (>95%) positive for the MSCs surface markers CD73, CD90, and CD105 and slightly (<5%) positive for the hematopoietic stem cell surface markers CD34 and CD45. The data are expressed as means ± SD.

(a)

(b)