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35 mm tissue culture dish

Company: BD
Catalog#: 353001
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Generation of Functional Mouse Hippocampal Neurons
Author:
Date:
2020-08-05
[Abstract]  Primary culture of mouse hippocampal neurons is a very useful in vitro model for studying neuronal development, axonal and dendritic morphology, synaptic functions, and many other neuronal features. Here we describe a step-by-step process of generating primary neurons from mouse embryonic hippocampi (E17.5/E18.5). Hippocampal neurons generated with this protocol can be plated in different tissue culture dishes according to different experimental aims and can produce a reliable source of pure and differentiated neurons in less than one week. This protocol covers all the steps necessary for the preparation, culture and characterization of the neuronal culture, including the illustration of dissection instruments, surgical procedure for embryos’ isolation, culturing conditions and ... [摘要]  [摘要] 原代培养小鼠海马神经元是一种非常有用的体外模型用于研究神经元的发育,轴突和树突的形态,突触功能,以及许多其他神经元的特征。这里我们描述了从小鼠胚胎海马(E17.5/E18.5)产生初级神经元的一步一步的过程。根据不同的实验目的,用该方法产生的海马神经元可以在不同的组织培养皿中进行培养,并能在不到一周的时间内产生一个可靠的来源。该方案涵盖了神经元培养物的制备、培养和鉴定的所有必要步骤,包括解剖器械的说明、胚胎分离的手术程序、培养条件以及培养物纯度和分化的评估。通过分析培养6天时的钙显像动力学来评估神经元的活性。

[背景] 海马体是一个非常典型的大脑结构,对重要的大脑功能如记忆、空间导航、情绪记忆和学习至关重要。从解剖学上讲,小鼠海马体有一个清晰的C形结构,很容易定位和分离。在细胞水平上,它主要由锥体细胞组成,与其他脑区相比,中间神经元和胶质细胞较少(Kaech和Banker,2006)。因此,海马体是从野生型或基因工程小鼠模型中产生高纯度原代神经元培养物的理想区域,可用于疾病建模或研究神经元功能的多个方面,如突触传递和电生理特性、对神经毒性的敏感性,分化与衰老(;;;;)。Busche,2018Koyama和Ikegaya,2018Molnar,2011Wu等人,2019Rush等人,2020年

已经制定了许多协议,通过与神经胶质喂食器共同培养神经元来产生皮层和海马神经元(Kaech和Banker,2006),描述了用水凝胶微纤维封装的星形胶质细胞的三维神经元培养系统(Kim等人,2020年),长期向培养基中补充生长因子神经元培养(Ray ...

Optic Nerve Crush in Mice to Study Retinal Ganglion Cell Survival and Regeneration
Author:
Date:
2020-03-20
[Abstract]  In diseases such as glaucoma, the failure of retinal ganglion cell (RGC) neurons to survive or regenerate their optic nerve axons underlies partial and, in some cases, complete vision loss. Optic nerve crush (ONC) serves as a useful model not only of traumatic optic neuropathy but also of glaucomatous injury, as it similarly induces RGC cell death and degeneration. Intravitreal injection of adeno-associated virus serotype 2 (AAV2) has been shown to specifically and efficiently transduce RGCs in vivo and has thus been proposed as an effective means of gene delivery for the treatment of glaucoma. Indeed, we and others routinely use AAV2 to study the mechanisms that promote neuroprotection and axon regeneration in RGCs following ONC. Herein, we describe a step-by-step protocol to ... [摘要]  [摘要 ] 在青光眼等疾病中,视网膜神经节细胞(RGC)神经元无法存活或无法再生视神经轴突,这是部分视力丧失的原因,在某些情况下,甚至是完全的视力丧失。视神经挤压术(ONC)不仅可以作为创伤性视神经病变的一种有用模型,而且还可以作为青光眼损伤的有用模型,因为它类似地诱导RGC细胞死亡和变性。腺相关病毒血清型2(AAV2)的玻璃体内注射已被证明特别地和有效地转导视网膜神经节细胞在体内和已因而被提出作为基因递送用于治疗青光眼的治疗的有效手段。确实,我们和其他人常规使用AAV2来研究促进ONC 后RGC中神经保护和轴突再生的机制。本文中,我们描述了分步操作的方案,以测定AAV2介导的转导和ONC损伤后小鼠中RGC的存活和再生,包括1)玻璃体内注射AAV2病毒载体,2)视神经挤压,3)霍乱毒素B (CTB)标记再生轴突,4)视神经清除,5)视网膜平面免疫染色和6)定量RGC存活和再生。除了提供执行此协议所需的所有材料和程序详细信息之外,我们还强调了它比其他相似的已发表方法的优势,并提供了有用的技巧以确保其在任何现代实验室中都能如实复制。

[背景 ] 青光眼是世界范围内不可逆失​​明的主要原因,其特征是视网膜神经节细胞(RGCs)逐渐退化和丧失,这是构成连接视网膜与大脑的视神经的中央投射神经元(Quigley ,2011 ; Tham ...

Lipid Mixing Assay for Murine Myoblast Fusion and Other Slow Cell-cell Fusion Processes
Author:
Date:
2020-03-05
[Abstract]  Lipid mixing (redistribution of lipid probes between fusing membranes) has been widely used to study early stages of relatively fast viral and intracellular fusion processes that take seconds to minutes. Lipid mixing assays are especially important for identification of hemifusion intermediates operationally defined as lipid mixing without content mixing. Due to unsynchronized character and the slow rate of the differentiation processes that prime the cells for cell-cell fusion processes in myogenesis, osteoclastogenesis and placentogenesis, these fusions take days. Application of lipid mixing assays to detect early fusion intermediates in these very slow fusion processes must consider the continuous turnover of plasma membrane components and potential fusion-unrelated exchange of the ... [摘要]  
[摘要 ] 脂质混合(脂质探针在融合膜之间的分布)已广泛用于研究相对快速的病毒和细胞内融合过程的各个阶段,这些过程耗时数秒至数分钟。脂质混合测定对于鉴定在操作上定义为没有内容混合的脂质混合的半融合中间体特别重要。由于不同步的特性以及分化过程的缓慢速度,这些分化过程使细胞在成肌,破骨细胞生成和胎盘生成中引发细胞间的融合过程,因此这些融合需要几天的时间。在这些非常缓慢的融合过程中应用脂质混合测定法检测早期融合中间体时,必须考虑质膜成分的连续转换以及脂质探针在膜之间的潜在融合无关交换。在这里,我们描述了脂质混合分析在骨骼肌细胞发育和再生中成肌融合阶段的工作中的应用。我们的方法利用了基于鼠C2C12细胞的成肌分化和融合的常规体外模型。当我们观察到第一个多核细胞的外观时,我们将细胞提起并用荧光脂质DiI 作为膜探针或CellTracker TM Green 作为含量探针标记它们。通过荧光显微镜对探针在细胞之间的重新分布进行评分。半融合细胞被鉴定为用内含物和膜探针标记的单核细胞。解释必须由具有融合能力不足细胞的阴性对照系统支持,以说明脂质探针的与融合无关的交换,并将其贡献降到最低。这种方法进行了较小的修改已用于调查原代鼠成肌细胞,破骨细胞前体的融合以及由配子融合原HAP2 介导的融合,并且很可能可以用于其他缓慢的细胞-细胞融合过程。

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