Figure 5. Effect of the RBP-J deletion on the in vitro cultured EPC.
(A) The expression of CXCR4 on the cultured EPC was accessed by FACS analysis. (B, C) In vitro migration assay. Transwell culture was set up, with EPC from the RBP-J-deleted and the control mice in the upper chamber, and SDF-1α in the lower chamber. A photograph of EPC in the lower chamber (B) was taken, and cells in the lower chamber (C) were counted 18 h after the starting of the culture (bars = mean±SD; n = 4; ** P<0.01). (D) The formation of colonies by the cultured RBP-J knockout and the control EPC. (E) The number of total EPC formed 7 days after the culture. (F) The number of EPC attached on the gelatin-coated dishes 3 days after the culture. (bars = mean±SD; n = 4; * P<0.05).