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Paraformaldehyde (PFA) 16%

16%多聚甲醛(甲醛)水溶液

Company: Electron Microscopy Sciences
Catalog#: 15710-S
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Isolation of Primary Human Skeletal Muscle Cells
Author:
Date:
2017-11-05
[Abstract]  Primary myoblast culture is a valuable tool in research of muscle disease, pathophysiology, and pharmacology. This protocol describes techniques for dissociation of cells from human skeletal muscle biopsies and enrichment for a highly myogenic population by fluorescence-activated cell sorting (FACS). We also describe methods for assessing myogenicity and population expansion for subsequent in vitro study. [摘要]  原代成肌细胞培养是研究肌肉疾病,病理生理学和药理学的有用工具。 该协议描述了通过荧光激活细胞分选(FACS)从人类骨骼肌活检中分离细胞并富集高度肌原细胞的技术。 我们还描述了用于评估随后的体外研究中肌原性和群体扩张的方法。
【背景】来自肌肉活组织检查的原代人成肌细胞是模拟体外人体肌肉疾病的有价值的资源。成肌细胞增殖,分化和融合的改变是许多神经肌肉疾病所共有的特征,并且可以用于测定基于细胞的和药理学的治疗。人类骨骼肌活组织检查,尤其是那些受疾病影响的人,通常含有大量的非肌原细胞,如脂肪细胞和成纤维细胞。因此,纯化肌原细胞进行骨骼肌发育和疾病的体外研究是非常重要的。肌肉疾病的早期研究涉及使用组织外植体或未纯化的分离细胞(Geiger和Garvin,1957; Herrmann等人,1960; Goyle等人,1967; Bishop 1971年),后来,Blau和Webster引入了一种预先电镀技术去除成纤维细胞(Blau and ...

Immunofluorescent Staining of Mouse Intestinal Stem Cells
Author:
Date:
2016-02-20
[Abstract]  Immunofluorescent staining of organoids can be performed to visualize molecular markers of cell behavior. For example, cell proliferation marked by incorporation of nucleotide (EdU), or to observe markers of intestinal differentiation including paneth cells, goblet cells, or enterocytes (see Figure 1). In this protocol we detail a method to fix, permeabilize, stain and mount intestinal organoids for analysis by immunofluorescent confocal microscopy.


Figure 1. A schematic depicting a crypt-villus forming organoid, and visualization of Paneth cells by immunofluorescence staining. Left: Small intestinal organoids grow as crypt-villus structures that contain all of the ...
[摘要]  可以进行类器官的免疫荧光染色以显现细胞行为的分子标志物。例如,通过掺入核苷酸(EdU)标记的细胞增殖,或观察肠分化的标志物,包括paneth细胞,杯状细胞或肠细胞(参见图1)。在这个协议中,我们详细的方法来修复,透化,染色和安装肠组织,通过免疫荧光共聚焦显微镜分析。


图1.描绘隐窝 - 绒毛形成类器官的示意图,通过免疫荧光染色观察Paneth细胞。肠器官类生长为含有所有肠的多种分化谱系的隐窝 - 绒毛结构。右:免疫荧光染色可用于显现器官类型中的单个细胞类型。通过染色溶菌酶("Lyso,"Green)显示paneth细胞,其显示位于隐窝碱基的Paneth细胞。 F-肌动蛋白(红色)显示在上皮的顶端表面的隐窝结构,DAPI(蓝色)揭示细胞核。比例尺为25μm。

Neurite Outgrowth Assay
Author:
Date:
2016-01-05
[Abstract]  Neurite outgrowth in culture provides an easy way to determine the effects of a particular substrate or exogenous factor on neuron behavior. Dissociated neurons can be plated on a variety of substrates and the length of the longest neurite outgrowth can be compared. Here, we describe how to isolate and dissociate dorsal root ganglion (DRG) neurons, culture them on coverslips, and measure longest neurite outgrowth. [摘要]  文化中的神经细胞生长提供了一种简单的方法来确定特定底物或外源因子对神经元行为的影响。 分离的神经元可以铺在各种底物上,并且可以比较最长的神经突生长的长度。 在这里,我们描述如何分离和解离背根神经节(DRG)神经元,将其培养在盖玻片上,并测量最长的神经突生长。

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