Differential CXCR4 Expression on Hematopoietic Progenitor Cells versus Stem Cells Directs Homing and Engraftment

Investigators found that intra-bone marrow hematopoietic stem and progenitor cell transplantation improved engraftment of hematopoietic progenitor cells but not of long-term repopulating hematopoietic stem cells.