CCR3 (C-C Motif Chemokine Receptor 3): CCR3 is a receptor involved in recruiting and activating eosinophils, basophils, and T cells, playing a crucial role in inflammatory responses and allergic disease pathology. It acts as the primary receptor for eotaxin, a chemokine that drives eosinophilic inflammation seen in conditions like asthma and allergic rhinitis. Dysregulation of CCR3 signaling can exacerbate allergic and inflammatory conditions, making it a potential target for therapeutic intervention.