亚洲精品综合日韩中文字幕网站_精品综合久久久久97_中文在线天堂网www_久久精品免费一区二区三区_91久久国产综合精品女同国语_久久资源总站在线国产成人

CD184, also known as CXCR4, is a G protein-coupled receptor with seven transmembrane domains that serves as the receptor for stromal cell-derived factor-1 （SDF-1, also known as CXCL12）. It is widely expressed in various tissues, including peripheral blood leukocytes, spleen, thymus, bone marrow, heart, placenta, lung, liver, skeletal muscle, kidney, pancreas, cerebellum, and endothelial cells. CXCR4 plays crucial roles in multiple physiological processes, such as cell migration, hematopoiesis, vascularization, neural development, and wound healing. It also acts as a co-receptor for T-cell tropic strains of HIV-1, facilitating viral entry into CD4+ cells. In cancer, CXCR4 is overexpressed in many tumor types and is associated with increased invasiveness, metastasis, and poor prognosis. Additionally, CXCR4 is involved in the homing of hematopoietic stem cells to the bone marrow and the retention of aged neutrophils.