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