PSMC5, a 19S Proteasomal ATPase, Regulates Cocaine Action in the Nucleus Accumbens.
PSMC5, a 19S Proteasomal ATPase, Regulates Cocaine Action in the Nucleus Accumbens.
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PSMC5是一种19S蛋白酶体ATPase,调节可卡因在伏隔核中的可卡因作用。
DOI:
10.1371/journal.pone.0126710
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Nestler EJ
中科院分区:
文献类型:
--
作者:
Ohnishi YH;Ohnishi YN;Nakamura T;Ohno M;Kennedy PJ;Ohkawa Y;Nishi A;Neve R;Tsuzuki T;Nestler EJ
ΔFosB is a stable transcription factor which accumulates in the nucleus accumbens (NAc), a key part of the brain’s reward circuitry, in response to chronic exposure to cocaine or other drugs of abuse. While ΔFosB is known to heterodimerize with a Jun family member to form an active transcription factor complex, there has not to date been an open-ended exploration of other possible binding partners for ΔFosB in the brain. Here, by use of yeast two-hybrid assays, we identify PSMC5—also known as SUG1, an ATPase-containing subunit of the 19S proteasomal complex—as a novel interacting protein with ΔFosB. We verify such interactions between endogenous ΔFosB and PSMC5 in the NAc and demonstrate that both proteins also form complexes with other chromatin regulatory proteins associated with gene activation. We go on to show that chronic cocaine increases nuclear, but not cytoplasmic, levels of PSMC5 in the NAc and that overexpression of PSMC5 in this brain region promotes the locomotor responses to cocaine. Together, these findings describe a novel mechanism that contributes to the actions of ΔFosB and, for the first time, implicates PSMC5 in cocaine-induced molecular and behavioral plasticity.
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影响因子:
3.4
作者:
Carle, Tiffany L.;Ohnishi, Yoshinori N.;Nestler, Eric J.
通讯作者:
Nestler, Eric J.
影响因子:
2.3
作者:
Perrotti, L. I.;Weaver, R. R.;Nestler, E. J.
通讯作者:
Nestler, E. J.
DOI:
10.1073/pnas.88.21.9578
发表时间:
1991-11-01
影响因子:
11.1
作者:
CHIEN, CT;BARTEL, PL;FIELDS, S
通讯作者:
FIELDS, S
DOI:
10.1073/pnas.94.19.10397
发表时间:
1997-09-16
影响因子:
11.1
作者:
Hiroi, N;Brown, JR;Nestler, EJ
通讯作者:
Nestler, EJ
影响因子:
64.5
作者:
MA, J;PTASHNE, M
通讯作者:
PTASHNE, M