Balixafortide

**Semantic type:** Pharmacologic Substance

**Definition:** An orally bioavailable inhibitor of CXC chemokine receptor 4 (CXCR4) with receptor binding and hematopoietic stem cell-mobilization activities. Balixafortide binds to the chemokine receptor CXCR4, thereby preventing the binding of stromal derived factor-1 (SDF-1 or CXCL12) to the CXCR4 receptor and subsequent receptor activation. This may induce the mobilization of hematopoietic stem and progenitor cells from the bone marrow into blood. CXCR4, a chemokine receptor belonging to the G protein-coupled receptor (GPCR) gene family, plays an important role in chemotaxis and angiogenesis and is upregulated in several tumor cell types; CXCL12/CXCR4 interaction induces retention of hematopoietic cells in the bone marrow.

**Synonyms:** - Ala-cys-ser-ala-pro-arg-tyr-cys-tyr-gln-lys-pro-pro-tyr-his Cyclic (2->9)-disulfide - BALIXAFORTIDE - POL6326