Novel Developments in Stem Cell Mobilization

Recently the CXCR4/CXCL12-axis has been recognized as one of the pivotal adhesion pathways by which hematopoietic stem cells are retained in the bone marrow. CXCR4 antagonists with different chemical specification are being developed. Pharmacology research guides the way to the rational development effective antagonists. One antagonist, plerixafor, is clinically approved now for stem cell mobilization of lymphoma and myeloma patients. This allows patients to receive potentially life-saving treat