Parvalbumin interneuron cell-to-network plasticity: mechanisms and therapeutic avenues.

Alzheimer's disease (AD) and schizophrenia (SCZ) represent two major neuropathological conditions with a high disease burden. Despite their distinct etiologies, patients suffering from AD or SCZ share a common burden of disrupted memory functions unattended by current therapies. Recent preclinical analyses highlight cell-type-specific contributions of parvalbumin interneurons (PVIs), particularly the plasticity of their cellular excitability, towards intact neuronal network function (cell-to-network plasticity) and memory performance. Here we argue that deficits of PVI cell-to-network plasticity may underlie memory deficits in AD and SCZ, and we explore two therapeutic avenues: the targeting of PVI-specific neuromodulation, including by neuropeptides, and the recruitment of network synchrony in the gamma frequency range (40 Hz) by external stimulation. We finally propose that these approaches be merged under consideration of recent insights into human brain physiology. Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.

Citation

Michael D Hadler, Henrik Alle, Jörg R P Geiger. Parvalbumin interneuron cell-to-network plasticity: mechanisms and therapeutic avenues. Trends in pharmacological sciences. 2024 Jul;45(7):586-601

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PMID: 38763836

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