Fig. 1

CXCR4 and CXCR7 were co-expressed in human first-trimester decidual epithelial cells in vivo. Immunohistochemistry expression of CXCR4 and CXCR7 molecules in first-trimester human decidual epithelial cells (DECs). Specific brown-colored staining for CXCR4 and CXCR7 were observed in the membrane, cytoplasm and nucleus of the primary-cultured DECs (n = 10). No staining was observed in cells stained with murine isotype control antibodies. Human first-trimester villi were used as positive controls. Murine isotype represents a negative control. Experiments were performed using ten independent endometrial samples. —200 μm