Synaptic remodeling

Synaptic remodeling refers to the process by which synapses—the connections between neurons—are physically and functionally altered through the creation, elimination, strengthening, or weakening of synaptic contacts. This phenomenon underlies the brain’s capacity for learning, memory, and adaptation to new experiences. Key actions include synaptogenesis (formation of new synapses), synaptic pruning (elimination of weak or unnecessary synapses), synaptic strengthening (potentiation), and synaptic weakening (depression). Molecular control involves orchestrated activities of neurotransmitter receptors (such as NMDA and AMPA receptors), intracellular signaling cascades (e.g., kinases like CaMKII, PKA), cytoskeletal remodeling, and sometimes, transcriptional and translational regulation. Synaptic remodeling occurs during development, in response to activity and experience, and is implicated in multiple neurological diseases. While not itself a drug target, it is affected indirectly by pharmacological modulators or genetic factors that influence synaptic function and connectivity.

Other names

Synaptic restructuringSynaptic reorganization