Translational approach to apathy‐like behavior in mice: From the practical point of view

Translational approach to apathy‐like behavior in mice: From the practical point of view
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小鼠冷漠样行为的转化方法:从实践的角度来看

DOI:
10.1111/pcn.12915
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发表时间:
2019
影响因子:
11.9
通讯作者:
Hamaguchi Takuya
Hamaguchi Takuya
中科院分区:
医学2区
文献类型:
--
作者:
Tanaka Kenji F.;Hamaguchi Takuya

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冷漠是一种普遍的临床现象,值得在转化和临床前水平上给予更多关注。为了研究小鼠的冷漠行为,我们依赖于冷漠的操作定义:自愿的,目标导向的行为的定量减少。我们最近发现,在一个限制区域(腹外侧纹状体,VLS)中,一种特定细胞类型(表达纹状体多巴胺受体2型的中型多刺神经元,D2-MSN)的功能慢性丧失足以在寻找食物的操作性任务中诱导冷漠样行为。我们进一步表明,VLS D2-MSN在准备期被激活,并且在此期间VLS D2-MSN的光遗传学抑制导致工具性动机的短暂降低,加强了VLS D2-MSN介导小鼠冷漠样行为的假设。因此,携带VLS D2-MSN功能障碍的小鼠可以被视为未来转化研究的冷漠模型。
Apathy is a pervasive clinical phenomenon that deserves more attention at the translational and pre‐clinical levels. To study apathy‐like behavior in mice, we relied on an operational definition of apathy: the quantitative reduction of voluntary, goal‐directed behaviors. We recently found that the chronic loss of function of a specific cell type (striatal dopamine receptor type 2‐expressing medium spiny neurons, D2‐MSN) in a restricted region (the ventrolateral striatum, VLS) was sufficient to induce apathy‐like behavior in a food‐seeking operant task. We further showed that VLS D2‐MSN are activated at the preparatory period, and that optogenetic inhibition of VLS D2‐MSN during that period resulted in transient decreases in instrumental motivation, strengthening the hypothesis that VLS D2‐MSN mediate apathy‐like behavior in mice. Mice bearing VLS D2‐MSN dysfunction can thus be regarded as an apathy model for future translational studies.
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发表时间: 2017-01
影响因子: 2.6
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期刊:
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