CXCR4 and Ureteral obstruction: Otherwise, many of these genes, such as Agt, Ccl12, Col3a1, Dcn, Itgb6, and Thbs2, were temporarily changed in these MSLCs expanded from the left kidney at only 7 days after ureteral obstruction, but the changes of Ccl3 and Cxcr4 were constantly observed during the 14 days of follow-up (Figure 7).