Cell type-specific regulation of DARPP-32 phosphorylation by psychostimulant and antipsychotic drugs.
Cell type-specific regulation of DARPP-32 phosphorylation by psychostimulant and antipsychotic drugs.
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DOI:
10.1038/nn.2153
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发表时间:
2008-08
影响因子:
25
通讯作者:
Greengard, Paul
中科院分区:
文献类型:
--
作者:
Bateup, Helen S.;Svenningsson, Per;Kuroiwa, Mahomi;Gong, Shiaoching;Nishi, Akinori;Heintz, Nathaniel;Greengard, Paul
DARPP-32 is a dual function protein kinase/phosphatase inhibitor which plays a vital role in striatal signaling. The phosphorylation of DARPP-32 at T34 is essential for mediating the effects of both psychostimulant and antipsychotic drugs; however these drugs are known to have opposing behavioral and clinical effects. We hypothesized that these drugs exert differential effects on striatonigral and striatopallidal neurons which comprise distinct output pathways of the basal ganglia. To directly test this idea, we developed novel BAC transgenic mice which allow analysis of DARPP-32 phosphorylation selectively in striatonigral and striatopallidal neurons. Using this new methodology we show that cocaine, a psychostimulant, and haloperidol, a sedation-producing antipsychotic, exert differential effects on DARPP-32 phosphorylation in the two neuronal populations which can explain their opposing behavioral effects. Furthermore, we find that a variety of drugs that target the striatum have cell-type specific effects which previous methods were not able to discern.
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DOI:
10.1016/0169-328x(92)90173-9
发表时间:
1992-07-01
期刊:
MOLECULAR BRAIN RESEARCH
影响因子:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.0611532104
发表时间:
2007-02-20
影响因子:
11.1
作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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