Function
CCL2 serves as a ligand for the C-C chemokine receptor CCR2. It triggers signaling through binding and activation of CCR2, resulting in a robust chemotactic response and mobilization of intracellular calcium ions. Notably, CCL2 exhibits chemotactic activity for monocytes and basophils but not neutrophils or eosinophils. It plays a crucial role in mediating peripheral nerve injury-induced neuropathic pain. Furthermore, CCL2 enhances NMDA-mediated synaptic transmission in both dopamine D1 and D2 receptor-containing neurons, potentially through MAPK/ERK-dependent phosphorylation of GRIN2B/NMDAR2B.