Convergence of Reinforcing and Anhedonic Cocaine Effects in the Ventral Pallidum.
Convergence of Reinforcing and Anhedonic Cocaine Effects in the Ventral Pallidum.
复制标题
DOI:
10.1016/j.neuron.2016.09.001
复制
发表时间:
2016-10-05
期刊:
影响因子:
16.2
通讯作者:
Lüscher C
中科院分区:
文献类型:
--
作者:
Creed M;Ntamati NR;Chandra R;Lobo MK;Lüscher C
Addiction is a disorder of behavioral symptoms including enhanced incentive salience of drug-associated cues, but also a negative affective state. Cocaine-evoked synaptic plasticity in the reward system, particularly the nucleus accumbens (NAc), drives drug-adaptive behavior. However, how information is integrated downstream of the NAc remains unclear. Here, we identify the ventral pallidum (VP) as a site of convergence of medium spiny neurons expressing dopamine (DA) receptor type 1 (D1-MSNs) and type 2 (D2-MSNs) of the NAc. Repeated in vivo cocaine exposure potentiated output of D1-MSNs, but weakened output of D2-MSNs, occluding LTP and LTD at these synapses, respectively. Selectively restoring basal transmission at D1-MSN-to-VP synapses abolished locomotor sensitization, whereas restoring transmission at D2-MSN-to-VP synapses normalized motivational deficits. Our results support a model by which drug-evoked synaptic plasticity in the VP mediates opposing behavioral symptoms; targeting the VP may provide novel therapeutic strategies for addictive disorders. Creed et al. identify distinct forms of plasticity between D1- and D2-MSNs and the ventral pallidum. Cocaine exposure occluded activity-dependent LTP and LTD at D1-VP and D2-VP synapses. Transmission at these synapses mediates distinct behavioral symptoms of addiction.
登录
查看更多内容
影响因子:
25
作者:
Bock, Roland;Shin, J. Hoon;Kaplan, Alanna R.;Dobi, Alice;Markey, Eric;Kramer, Paul F.;Gremel, Christina M.;Christensen, Christine H.;Adrover, Martin F.;Alvarez, Veronica A.
通讯作者:
Alvarez, Veronica A.
影响因子:
2.5
作者:
HABER, SN;GROENEWEGEN, HJ;NAUTA, WJH
通讯作者:
NAUTA, WJH
影响因子:
7.6
作者:
Crespo, JA;Manzanares, J;Ambrosio, E
通讯作者:
Ambrosio, E
影响因子:
56.9
作者:
KOOB, GF;BLOOM, FE
通讯作者:
BLOOM, FE
影响因子:
56.9
作者:
GERFEN, CR;ENGBER, TM;SIBLEY, DR
通讯作者:
SIBLEY, DR