CXCR4 Inhibitor

**Semantic type:** Chemical Viewed Functionally

**Definition:** An antagonist of the C-X-C chemokine receptor type 4 (CXCR4). CXCR4, which belongs 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.