Enhanced histamine H2 excitation of striatal cholinergic interneurons in L-DOPA-induced dyskinesia.
Enhanced histamine H2 excitation of striatal cholinergic interneurons in L-DOPA-induced dyskinesia.
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DOI:
10.1016/j.nbd.2015.01.003
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发表时间:
2015-04
影响因子:
6.1
通讯作者:
Kang, Un Jung
中科院分区:
文献类型:
--
作者:
Lim, Sean Austin O.;Xia, Rong;Ding, Yunmin;Won, Lisa;Ray, William J.;Hitchcock, Stephen A.;McGehee, Daniel S.;Kang, Un Jung
关键词:
Levodopa is the most effective therapy for the motor deficits of Parkinson's disease (PD), but long term treatment leads to the development of L-DOPA-induced dyskinesia (LID). Our previous studies indicate enhanced excitability of striatal cholinergic interneurons (ChIs) in mice expressing LID and reduction of LID when ChIs are selectively ablated. Recent gene expression analysis indicates that stimulatory H2 histamine receptors are prefentially expressed on ChIs at high levels in the striatum, and we tested whether a change in H2 receptor function might contribute to the elevated excitability in LID. Using two different mouse models of PD (6-hydroxydopamine lesion and Pitx3ak/ak mutation), we chronically treated the animals with either vehicle or L-DOPA to induce dyskinesia. Electrophysiological recordings indicate that histamine H2 receptor-mediated excitation of striatal ChIs is enhanced in mice expressing LID. Additionally, H2 receptor blockade by systemic administration of famotidine decreases behavioral LID expression in dyskinetic animals. These findings suggest that ChIs undergo a pathological change in LID with respect to histaminergic neurotransmission. The hypercholinergic striatum associated with LID may be dampened by inhibition of H2 histaminergic neurotransmission. This study also provides a proof of principle of utilizing selective gene expression data for cell-type-specific modulation of neuronal activity.
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影响因子:
4.7
作者:
Conti MM;Ostock CY;Lindenbach D;Goldenberg AA;Kampton E;Dell'isola R;Katzman AC;Bishop C
通讯作者:
Bishop C
影响因子:
7.3
作者:
Bell, MI;Richardson, PJ;Lee, K
通讯作者:
Lee, K
DOI:
10.1073/pnas.1006511108
发表时间:
2011-01-11
影响因子:
11.1
作者:
Ding, Yunmin;Won, Lisa;Kang, Un Jung
通讯作者:
Kang, Un Jung
影响因子:
7.3
作者:
GIACHETTI, A;GIRALDO, E;MONTAGNA, E
通讯作者:
MONTAGNA, E
影响因子:
8.6
作者:
Gomez-Ramirez, Jordi;Johnston, Tom H.;Brotchie, Jonathan M.
通讯作者:
Brotchie, Jonathan M.