Enhanced Proliferation of Porcine Bone Marrow Mesenchymal Stem Cells Induced by Extracellular Calcium is Associated with the Activation of the Calcium-Sensing Receptor and ERK Signaling Pathway

Figure 4

activated ERK1/2 during the proliferation of pBMSCs. (a) Western blot analysis of phosphor-ERK (p-ERK) and ERK in pBMSCs after 5-day culture. β-actin was used as loading control. (b) Mean ± SEM of immunoblotting bands of p-ERK/ERK; the intensities of the bands were expressed as the arbitrary units (). versus 1 mM group (control); versus 4 mM group.

(a)

(b)