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Tubes for drosophila

Company: Dutscher
Catalog#: 789002
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Assaying Mechanonociceptive Behavior in Drosophila Larvae
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2018-02-20
[Abstract]  Drosophila melanogaster larvae have been extensively used as a model to study the molecular and cellular basis of nociception. The larval nociceptors, class IV dendritic arborization (C4da) neurons, line the body wall of the animal and respond to various stimuli including noxious heat and touch. Activation of C4da neurons results in a stereotyped escape behavior, characterized by a 360° rolling response along the body axis followed by locomotion speedup. The genetic accessibility of Drosophila has allowed the identification of mechanosensory channels and circuit elements required for nociceptive responses, making it a useful and straightforward readout to understand the cellular and molecular basis of nociceptive function and behavior. We have optimized the protocol to ... [摘要]  果蝇幼虫已广泛用作研究伤害感受的分子和细胞基础的模型。 幼虫伤害感受器,IV类树突状树枝状(C4da)神经元,排列在动物体壁上,并对各种刺激作出反应,包括有害的热和触觉。 激活C4da神经元导致刻板脱逃行为,其特征在于沿着身体轴线的360°滚动响应,随后是运动加速。 果蝇的遗传可及性允许识别伤害性反应所需的机械感受通道和电路元件,使其成为理解伤害性功能和行为的细胞和分子基础的有用和直接的读数。 我们已经优化了该协议以检测果蝇幼虫中的机械伤害行为。


【背景】伤害感受,是检测和避免有害刺激的先天能力,在整个动物界高度保守。果蝇幼虫能够检测并避免各种有害刺激,包括有害触觉,热和光(Tracey等人,2003; Hwang等人, ,2007; Xiang et al。,2010)。高于特定阈值(> 30mN)的机械刺激在所有幼虫阶段(Almeida-Carvalho等人,2017)都引发了定型滚动逃避反应,其被认为已经进化以避免通过寄生蜂如L。 boulardi (Hwang et。,2007)。这种逃避反应是由伤害性C4da神经元的激活介导的,伤害性C4da神经元具有覆盖整个体壁的感觉树突,允许动物检测有害线索。 C4da神经元表达属于DEG / ENaC家族的几种机械感受通道(Pickpocket [ppk],ppk26 / ...

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