Loss of nigral excitation of cholinergic interneurons contributes to parkinsonian motor impairments.
Loss of nigral excitation of cholinergic interneurons contributes to parkinsonian motor impairments.
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DOI:
10.1016/j.neuron.2021.01.028
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发表时间:
2021-04-07
期刊:
影响因子:
16.2
通讯作者:
Ford CP
中科院分区:
文献类型:
--
作者:
Cai Y;Nielsen BE;Boxer EE;Aoto J;Ford CP
Progressive loss of dopamine inputs in Parkinson’s disease leads to imbalances in coordinated signaling of dopamine and acetylcholine (ACh) in the striatum, which is thought to contribute to parkinsonian motor symptoms. As reciprocal interactions between dopamine inputs and cholinergic interneurons (ChIs) control striatal dopamine and ACh transmission, we examined how partial dopamine depletion in an early-stage mouse model for Parkinson’s disease altered nigral regulation of cholinergic activity. We found region specific alterations in how remaining dopamine inputs regulated cholinergic excitability that differed between the dorsomedial (DMS) and dorsolateral (DLS) striatum. Specifically, we found that dopamine depletion downregulated metabotropic glutamate receptors (mGluR1) on DLS ChIs at synapses where dopamine inputs co-release glutamate, abolishing the ability of dopamine inputs to drive burst firing. This loss underlied parkinsonian motor impairments as viral rescue of mGluR1 signaling in DLS ChIs was sufficient to restore circuit function and attenuate motor deficits in early-stage parkinsonian mice. Cai et al. find that partial degeneration of dopamine inputs in mice differentially alters how remaining SNc terminals regulate cholinergic interneurons via dopamine and glutamate transmission across the dorsomedial and dorsolateral striatum. Rescuing the dysfunction in glutamatergic excitation of cholinergic interneurons alleviated early stage Parkinsonian motor symptoms.
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DOI:
10.1111/ejn.13715
发表时间:
2019-03
期刊:
The European journal of neuroscience
影响因子:
--
作者:
Aceves Buendia JJ;Tiroshi L;Chiu WH;Goldberg JA
通讯作者:
Goldberg JA
影响因子:
16.2
作者:
Chuhma N;Mingote S;Moore H;Rayport S
通讯作者:
Rayport S
影响因子:
25
作者:
Ding, Jun;Guzman, Jaime N.;Surmeier, D. James
通讯作者:
Surmeier, D. James
影响因子:
64.8
作者:
Brakeman, PR;Lanahan, AA;Worley, PF
通讯作者:
Worley, PF
影响因子:
7.7
作者:
Chuhma, Nao;Mingote, Susana;Rayport, Stephen
通讯作者:
Rayport, Stephen