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RE Argon Laser LGK7812 ML5

Company: Carl Zeiss
Catalog#: 000000-2158-591
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In vitro Time-lapse Imaging of Primary Cilium in Migrating Neuroblasts
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2020-11-20
[Abstract]  Neuronal migration is a critical step for the development of neuronal circuits in the brain. Immature new neurons (neuroblasts) generated in the postnatal ventricular-subventricular zone (V-SVZ) show a remarkable potential to migrate for a long distance at a high speed in the postnatal mammalian brain, and are thus a powerful model to analyze the molecular and cellular mechanisms of neuronal migration. Here we describe a methodology for in vitro time-lapse imaging of the primary cilium and its related structures in migrating V-SVZ-derived neuroblasts using confocal or superresolution laser-scanning microscopy. The V-SVZ tissues are dissected from postnatal day 0-1 (P0-1) mouse brains and dissociated into single cells by trypsinization and gentle pipetting. These cells are then ... [摘要]  [摘要]神经元迁移是大脑中神经元回路发展的关键步骤。产后心室-脑室下区(V-SVZ)中产生的未成熟新神经元(神经母细胞)显示出巨大的潜力,可以在产后哺乳动物脑中高速长距离迁移,因此是分析分子和神经元的强大模型。神经元迁移的细胞机制。在这里,我们描述了一种使用共聚焦或超分辨率激光扫描显微镜对V-SVZ衍生的成神经细胞进行迁移的初级纤毛及其相关结构的体外延时成像方法。从出生后的第0-1天(P0-1)小鼠脑中解剖V-SVZ组织,并通过胰蛋白酶消化和温和的移液将其分离成单个细胞。然后用编码目的基因的质粒转导这些细胞,通过离心聚集,并在Matrigel中培养2天。通过共聚焦或超分辨率激光扫描显微镜获取培养的神经母细胞及其睫状结构(包括睫状膜和基体)迁移行为的时移图像。该方法提供了有关成神经细胞形态和睫状结构时空动态的信息,并且广泛适用于各种物种中各种类型的迁移神经元和非神经元细胞。


[背景]在出生后的大脑中,神经干细胞驻留在侧脑室侧壁内衬的心室-心室下区(V-SVZ)中,并不断生成未成熟的新神经元(神经母细胞)(Obernier和Alvarez-Buylla,2019)。这些成神经细胞形成链状细胞聚集体,并通过鼻尖迁移流(RMS)彼此迁移至嗅球(OB)(Luskin,1993; Lois and Alvarez-Buylla,1994; Lois et ...

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