Excitatory Amino Acid Receptor Signaling Pathway

The excitatory amino acid receptor signaling pathway refers to the cellular processes initiated by the binding of excitatory amino acids—most notably glutamate—to their respective receptors in the central nervous system (CNS). This pathway is fundamental for fast synaptic transmission, neural plasticity, and overall brain function. Dysregulation of this pathway is implicated in various neurological disorders. Key receptors include ionotropic (NMDA, AMPA, Kainate) and metabotropic glutamate receptors (mGluRs). The pathway plays essential roles in learning, memory, and neuronal network activity but can lead to excitotoxicity and neurodegeneration if dysregulated.