CXC Chemokine Receptors - CXCR4

CXCR4

CXCR4 (also known as fusin) is the receptor for a chemokine known as CXCL12 (or SDF-1) and, as with CCR5, is utilized by HIV-1 to gain entry into target cells. This receptor has a wide cellular distribution, with expression on most immature and mature hematopoietic cell types (e.g. neutrophils, monocytes, T and B cells, dendritic cells, Langerhans cells and macrophages). In addition, CXCR4 can also be found on vascular endothelial cells and neuronal/nerve cells.