期刊
NATURE COMMUNICATIONS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms1744
关键词
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资金
- EU (FOCUS)
- Telethon-Italy [GGP10135, GGP11043]
GABA(A) receptors (GABA(A)Rs) exist as different subtype variants showing unique functional properties and defined spatio-temporal expression pattern. The molecular mechanisms underlying the developmental expression of different GABA(A)R are largely unknown. The intracellular concentration of chloride ([Cl-](i)), the main ion permeating through GABA(A)Rs, also undergoes considerable changes during maturation, being higher at early neuronal stages with respect to adult neurons. Here we investigate the possibility that [Cl-](i) could modulate the sequential expression of specific GABA(A)Rs subtypes in primary cerebellar neurons. We show that [Cl-](i) regulates the expression of alpha 3-1 and delta-containing GABA(A) receptors, responsible for phasic and tonic inhibition, respectively. Our findings highlight the role of [Cl-](i) in tuning the strength of GABAergic responses by acting as an intracellular messenger.
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