Figure 3. Analysis of POLD1 protein expression levels in MDPL and WT-MSCs. (A) Protein extracts of MDPL-MSCs, compared with healthy controls. (B) Densitometric analysis of POLD1 protein normalized on GAPDH levels; *p < 0.05, **p < 0.01, ***p < 0.001, by one-way ANOVA test.