CXCR2 (C-X-C Motif Chemokine Receptor 2): CXCR2 is a receptor that binds to C-X-C motif chemokines and plays a crucial role in guiding leukocyte migration to inflammatory sites. It is particularly important for recruiting neutrophils, which are essential for the body’s initial defense against infection or injury. Dysregulated CXCR2 signaling is associated with chronic inflammatory diseases such as COPD and asthma, and it also contributes to the tumor-promoting inflammatory environment in cancer. Therefore, targeting CXCR2 signaling is a promising therapeutic strategy for treating inflammatory diseases and limiting cancer progression.