CCR9 and colorectal carcinoma: The results demonstrated that CCL22 (Fig. 12B) was lowly expressed in CRC cell lines, whereas CCL19 (Fig. 12A), CCR9 (Fig. 12C), CX3CL1 (Fig. 12D), XCL1 (Fig. 12E), and CXCR5 (Fig. 12F) were highly expressed in CRC cell lines.