Here is a link to an abstract with an update about advances in stem cell mobilization: Update on clinical experience with AMD3100, an SDF-1/CXCL12-CXCR4 inhibitor, in mobilization of hematopoietic stem and progenitor cells.
Interpreting this is beyond my pay grade! Best I can tell, AMD3100 is a new stem cell mobilizer, with possible benefits as a therapy agent when used against certain forms of leukemia.
Feel good and keep smiling! Pat