Cell Rep:科学家发现Hox如何控制摄食行为

2016-01-21 佚名 生物谷

在生物黑腹果蝇实验模式中,海德堡大学生物学家对果蝇如何编码和控制摄食行为有了新的见解。博士教授领导的研究小组关于生物有机体研究中心(COS)研究Hox基因家族特殊的发展基因的功能。这个基因对维持果蝇头部运动单位至关重要,包括肌肉和刺激果蝇进食的神经元。如果Hox基因的功能有损坏或有缺陷,没有或只有部分运动单位发育,果蝇就会饿死。这项研究的结果发表在《细胞》杂志上。 “动物与环境相互作用基于典型的

在生物黑腹果蝇实验模式中,海德堡大学生物学家对果蝇如何编码和控制摄食行为有了新的见解。博士教授领导的研究小组关于生物有机体研究中心(COS)研究Hox基因家族特殊的发展基因的功能。这个基因对维持果蝇头部运动单位至关重要,包括肌肉和刺激果蝇进食的神经元。如果Hox基因的功能有损坏或有缺陷,没有或只有部分运动单位发育,果蝇就会饿死。这项研究的结果发表在《细胞》杂志上。

“动物与环境相互作用基于典型的运动模式,如运动,呼吸或进食”Lohmann教授解释道。“我们已经知道了监管基因家族被称为Hox基因,对建立协调运动模式至关重要。但直到现在我们也不理解喂养行为的分子基础。“Lohmann教授的研究小组用果蝇实验能够证明一个特定的Hox基因(称为变形体)可控制不只胚胎发育方面摄食运动单位的形成。它也负责在动物后期生活阶段中其功能的维护。后期生活也可以显示出当运动单位形成后变形体可在胚胎形成后释放,然而,典型的运动模式已经失去,研究团队把这种失去的运动模式的原因归结到连接点的重大变化上,或神经元和肌肉之间的突触上。

“我们的研究表明,Hox基因在神经元中有保护作用。一旦这种保护缺失,神经元就会退化,像我们观察的神经退行性疾病如阿尔茨海默氏症和帕金森氏症等”Lohmann教授解释道。未来的研究将致力于阐明Hox基因如何在分子水平上执行这种保护功能。该研究项目得到德国研究基金会的资助。”

原始出处:

Friedrich J, Sorge S, et al.Hox Function Is Required for the Development and Maintenance of the Drosophila Feeding Motor Unit.Cell Rep. 2016 Jan 13.

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    2016-11-28 仁医06
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    2016-01-27 李继凯

    厉害

    0

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    2016-01-21 忠诚向上

    很多

    0

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    2016-01-21 忠诚向上

    好好学习

    0

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