CCR3 (C-C Motif Chemokine Receptor 3): CCR3 is a receptor that plays a crucial role in the recruitment and activation of eosinophils, basophils, and T cells, contributing significantly to inflammatory responses and the pathology of allergic diseases. It acts as the principal receptor for eotaxin, a chemokine responsible for eosinophilic inflammation observed in conditions like asthma and allergic rhinitis. Dysregulation of CCR3 signaling can exacerbate allergic and inflammatory disorders, highlighting its potential as a target for therapeutic intervention.