Rules of engagement: factors that regulate activity-dependent synaptic plasticity during neural network development

Area of Science:

• Neuroscience
• Developmental Biology
• Cellular Biology

Background:

• Development involves overproduction and pruning of cells and synapses, influenced by experience and neural activity.
• Activity-dependent plasticity at glutamatergic synapses is vital for neuronal network formation and maturation.
• Synaptic plasticity in the rodent forebrain changes as development progresses, impacting cognition.

Purpose of the Study:

• To review developmental changes in functional plasticity at glutamatergic synapses.
• To examine the role of N-methyl-d-aspartate (NMDA) receptors in synaptic stabilization and memory formation.
• To explore factors upstream and downstream of NMDA receptor activation that influence synaptic plasticity.

Main Methods:

• Literature review of studies on synaptic plasticity during development.
• Analysis of research on NMDA receptor subunit composition and function.
• Synthesis of findings on upstream and downstream regulatory mechanisms.

Main Results:

• NMDA receptor activation is key for synaptic stabilization and memory during forebrain development.
• Changes in NMDA receptor subunits correlate with developmental shifts in plasticity and cognition.
• Factors beyond NMDA receptors, both upstream and downstream, significantly impact synaptic plasticity.

Conclusions:

• Developmental modifications in synaptic plasticity are critical for establishing stable neural networks and cognitive abilities.
• Understanding upstream and downstream mechanisms of NMDA receptor function is essential for a complete picture of synaptic development.
• Further research is needed to fully elucidate these processes and their relation to neural network maturation.