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Characterization and chemotaxis of progenitor cells. (A) CXCR4 expression of cbEPCs and bmMPCs, (B) Fluorescent images of migrated progenitor cells on the bottom of transwell insert membrane. Scale bar = 200 μm. (C) and (D) Quantification of migrated cells. Cell numbers in each group were normalized by those in basal medium group. *p < 0.05 (compared to DV and 50), #p < 0.05 (compared to DV, 50, and 100), †p < 0.05 (compared to all other groups) (n = 4).
