CXCR2 (C-X-C Motif Chemokine Receptor 2) is a receptor that binds C-X-C motif chemokines, such as CXCL5, and is mainly found on neutrophils. It plays a critical role in directing neutrophil movement and activation during inflammation. CXCR2 is involved in several pathological conditions, including inflammatory diseases, cancer, and chronic obstructive pulmonary disease (COPD), making it an important target for therapeutic treatments.