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CO2 incubator

CO2培养箱

Company: SANYO
Catalog#: MCO-18AIC
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In vitro Time-lapse Imaging of Primary Cilium in Migrating Neuroblasts
Author:
Date:
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 ...

Mechanical Tissue Compression and Whole-mount Imaging at Single Cell Resolution for Developing Murine Epididymal Tubules
Author:
Date:
2020-08-05
[Abstract]  Cells inside the body are subjected to various mechanical stress, such as stretch or compression provided by surrounding cells, shear stresses by blood or lymph flows, and normal stresses by luminal liquids. Force loading to the biological tissues is a fundamental method to better understand cellular responses to such mechanical stimuli. There have been many studies on compression or stretch experiments that target culture cells attached to a flexible extensible material including polydimethylsiloxane (PDMS); however, the know-how of those targeting to tissues is still incomplete. Here we present the protocol for mechanical tissue compression and image-based analysis by focusing on developing murine epididymis as an example. We show a series of steps including tissue dissection from ... [摘要]  [摘要 ] 细胞我n侧主体经受各种机械应力,例如通过管腔液体拉伸或通过血液或淋巴周围细胞的剪切应力提供的压缩流,并且正常的应力。力加载到生物组织上是一种基本方法,可以更好地了解细胞对此类机械刺激的反应。关于压缩或拉伸实验,已有许多研究针对以附着于包括聚二甲基硅氧烷(PDMS)在内的柔性可扩展材料的培养细胞为目标的研究。然而,知道的-如何与靶向组织仍然是不完整的。 在这里,我们以开发小鼠附睾为例,介绍用于机械组织压缩和基于图像的分析的协议。我们显示了一系列步骤,包括从鼠胚胎中解剖组织,使用手动设备进行基于水凝胶的压缩方法以及无损容积组织成像。该协议对于定量和探索组织水平的生物机械反应系统很有用。

[背景 ] 细胞可以对机械刺激作出反应通过细胞内的生物化学信号传导途径。已知这种细胞机械反应在诸如胚胎发育,再生,组织稳态和癌症转移的各种生物过程中起着基本作用(Mammoto 等,2013; Humphrey 等,2014; Vining和Mooney,2017)。最近有关向细胞外部施加力的实验表明细胞如何对给定的机械刺激作出反应。例如,已显示出拉伸或压缩附着在诸如聚二甲基硅氧烷(PDMS)之类的柔性有机硅基材上的细胞单层会触发机械敏感离子通道蛋白Piezo1,从而引起各种细胞行为,例如细胞分裂和挤压,从而导致体内稳态的细胞数量增加。组织(Eisenhoffer ...

Ciliary Assembly/Disassembly Assay in Non-transformed Cell Lines
Author:
Date:
2018-03-20
[Abstract]  The primary cilium is a non-motile sensory organelle whose assembly and disassembly are closely associated with cell cycle progression. The primary cilium is elongated from the basal body in quiescent cells and is resorbed as the cells re-enter the cell cycle. Dysregulation of ciliary dynamics has been linked with ciliopathies and other human diseases. The in vitro serum-stimulated ciliary assembly/disassembly assay has gained popularity in addressing the functions of the protein-of-interest in ciliary dynamics. Here, we describe a well-tested protocol for transfecting human retinal pigment epithelial cells (RPE-1) and performing ciliary assembly/disassembly assays on the transfected cells. [摘要]  主要纤毛是一种非运动感觉细胞器,其装配和拆卸与细胞周期进程密切相关。 初级纤毛在静止细胞中从基体拉长并随着细胞重新进入细胞周期而被吸收。 睫状动力失调与纤毛病和其他人类疾病有关。 体外血清刺激的睫状体装配/分解测定已经在解决睫状动力学中感兴趣的蛋白质的功能方面受到欢迎。 在这里,我们描述了转染人视网膜色素上皮细胞(RPE-1)和对转染细胞进行睫状体装配/分解测定的充分测试的方案。

【背景】初级纤毛是毛发样感觉细胞器,其在G 0 / G 1期出现,并且在细胞周期的S期之前分解(Tucker等, et al。,1979)。先前的研究已经证实,某些未转化的细胞类型(即,甚至是RPE-1细胞,3T3成纤维细胞和小鼠胚胎成纤维细胞[MEFs])可以被饿死以诱导静止和睫状体形成。随后的血清再次添加触发双相睫状体吸收,其在刺激后2小时和24小时达到峰值(Tucker等人,1979; Li等人,2011) 。该现象为文献中常用的血清刺激的睫状体组装/分解测定奠定了基础,以鉴定参与睫状体组装和拆卸的蛋白质(Pugacheva等人,2007; ...

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