SDF-1

SDF-1 (stromal cell-derived factor 1) is a 8 kDa chemokine protein that is a member of the CXC chemokine superfamily. SDF-1 is expressed in many cells and tissues such as bone marrow, brain, liver, and heart. SDF-1 regulates lymphopoiesis, angiogenesis, and patterning and cell number of neural progenitors.