Key result
Loss of functional KCNQ5 channels in mice increased excitability of hippocampal interneurons, enhanced synaptic inhibition, and reduced fast network oscillations and spatial representations in vivo.
KCNQ5 channels play a critical role in controlling the excitability and function of hippocampal networks by modulating synaptic inhibition.
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No immediate clinical implications from mouse data; leaves open KCNQ5 as target for human cognitive disorders.
Fidzinski et al. (2015) studied this question. KCNQ5 dominant negative mutation (G278S) vs. Wild-type (Kcnq5+/+) was evaluated on Hippocampal synaptic inhibition and fast network oscillations. Loss of functional KCNQ5 channels in mice increased excitability of hippocampal interneurons, enhanced synaptic inhibition, and reduced fast network oscillations and spatial representations in vivo.
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