Social Control of Hypothalamus-Mediated Male Aggression.

Social Control of Hypothalamus-Mediated Male Aggression.
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DOI:
10.1016/j.neuron.2017.06.046
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发表时间:
2017-08-16
期刊:
影响因子:
16.2
通讯作者:
Shah NM
Shah NM
中科院分区:
医学1区
文献类型:
--
作者:
Yang T;Yang CF;Chizari MD;Maheswaranathan N;Burke KJ Jr;Borius M;Inoue S;Chiang MC;Bender KJ;Ganguli S;Shah NM

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环境和生理信号如何相互作用,以影响神经回路的发展编程的社会相互作用,如男性的领土侵略是知之甚少。我们已经测试的影响,感觉线索,社会背景,和性激素对孕激素受体(PR)表达神经元的腹内侧下丘脑(VMH),是男性领土的侵略。我们发现,这些神经元可以驱动独立的信息素输入,性腺激素,对手,或社会背景的孤独男性的侵略性显示。相比之下,这些神经元不能引起攻击性的社会居住的男性侵入另一个男性的领土,除非他们的信息素感应被禁用。这种攻击性的调节无法通过环境和生理信号的线性整合来解释。总之,我们的研究表明,从根本上说,非线性计算使社会环境施加主导影响的发展硬连线下丘脑介导的男性领土侵略。Yang等人表明,PR+ VMHvl神经元在单独的雄性小鼠中触发攻击,而与信息素感测、性腺激素、对手或社会背景无关。相比之下,这些神经元可以触发攻击性的社会居住的入侵者男性,如果他们的信息素感应被禁用。
How environmental and physiological signals interact to influence neural circuits underlying developmentally programmed social interactions such as male territorial aggression is poorly understood. We have tested the influence of sensory cues, social context, and sex hormones on progesterone receptor (PR) expressing neurons in the ventromedial hypothalamus (VMH) that are critical for male territorial aggression. We find that these neurons can drive aggressive displays in solitary males independent of pheromonal input, gonadal hormones, opponents, or social context. By contrast, these neurons cannot elicit aggression in socially housed males that intrude in another male’s territory unless their pheromone-sensing is disabled. This modulation of aggression cannot be accounted for by linear integration of environmental and physiological signals. Together, our studies suggest that fundamentally non-linear computations enable social context to exert a dominant influence on developmentally hard-wired hypothalamus-mediated male territorial aggression. Yang et al. show that PR+ VMHvl neurons trigger aggression in solitary male mice independent of pheromone-sensing, gonadal hormones, opponents, or social context. By contrast, these neurons can trigger aggression in socially housed intruder males if their pheromone-sensing is disabled.
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