Figure 2.
Mouse lung resident mesenchymal stem cells (LR-MSCs) display MSC properties. (A) Mouse LR-MSCs morphology after 7 days of culture following isolation by MACS from the mouse lung single-cell suspension was revealed by a standard light microscope. (B) The expression of Sca-1, CD73, CD29, CD44, CD31, CD34 and CD45 on mouse LR-MSCs was measured by flow cytometric analysis. The black line indicates negative control and the red line indicates the respective surface marker staining. (C) Sorted mouse LR-MSCs were seeded in an appropriate differentiation-induction medium. Osteogenic differentiation of mouse LR-MSCs was demonstrated by (d) alkaline phosphatase staining at day 7 and (e) alizarin red staining at day 21; Adipogenesis was detected by the formation of lipid droplets stained with oil red O at day 21. (a–c) Control cells were cultured in normal growth medium.