Making Dopamine Connections in Adolescence.

Making Dopamine Connections in Adolescence.
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DOI:
10.1016/j.tins.2017.09.004
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发表时间:
2017-12
影响因子:
15.9
通讯作者:
Flores C
Flores C
中科院分区:
医学1区
文献类型:
--
作者:
Hoops D;Flores C

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一个戏剧性的成熟过程正在进行的青春期是前额叶皮层的发展,包括其多巴胺神经支配。多巴胺轴突从纹状体生长到前额皮质,这是唯一已知的青春期长距离轴突生长的案例。这是由Netrin-1引导信号受体DCC协调的,它反过来控制着前额叶皮层本身的内在发展。青春期的兴奋剂药物改变了多巴胺神经元的DCC,进而改变了前额叶皮层的成熟,影响了认知能力。DCC表达的变化与前额叶皮质功能障碍的精神疾病有关,DCC的microRNA调节可能是决定青少年脆弱性或弹性的关键。由于早期干预被证明可以有效地改善疾病的结果,Netrin-1系统是一个有前途的治疗靶点。
A dramatic maturational process ongoing in adolescence is prefrontal cortex development, including its dopamine innervation. Dopamine axons grow from the striatum to the prefrontal cortex, the only known case of long-distance axon growth during adolescence. This is coordinated by the Netrin-1 guidance cue receptor DCC, which in turn controls the intrinsic development of the prefrontal cortex itself. Stimulant drugs in adolescence alter DCC in dopamine neurons and in turn prefrontal cortex maturation, impacting cognitive abilities. Variations in DCC expression are linked to psychiatric conditions of prefrontal cortex dysfunction, and microRNA regulation of DCC may be key to determining adolescent vulnerability or resilience. Since early interventions are proving to effectively ameliorate disease outcome, the Netrin-1 system is a promising therapeutic target.
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