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Coculturing with DRG promoted the self-renewal ability and stem cell-related gene expression of BMSCs. (a) CFU assay of the BMSCs and BMSCs + DRG groups. Purple dots refer to cell colonies. (b) Stem cell-related gene expression after coculture for 3, 5, and 8 days. ∗ denotes that differences are statistically significant between BMSCs + DRG and BMSCs groups.
