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Inverted light microscope

Company: Olympus
Catalog#: CK30
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Active Cdk5 Immunoprecipitation and Kinase Assay
Author:
Date:
2017-07-05
[Abstract]  Cdk5 activity is regulated by the amounts of two activator proteins, p35 and p39 (Tsai et al., 1994; Zheng et al., 1998; Humbert et al., 2000). The p35-Cdk5 and p39-Cdk5 complexes have differing sensitivity to salt and detergent concentrations (Hisanaga and Saito, 2003; Sato et al., 2007; Yamada et al., 2007; Asada et al., 2008). Cdk5 activation can be directly measured by immunoprecipitation of Cdk5 with its bound activator, followed by a Cdk5 kinase assay. In this protocol, buffers for cell lysis and immunoprecipitation are intended to preserve both p35- and p39-Cdk5 complexes to assess total Cdk5 activity. Cells are lysed and protein concentration is determined in the post-nuclear supernatant. Cdk5 is immunoprecipitated from equal ... [摘要]  Cdk5活性受两种激活蛋白p35和p39(Tsai et al。,1994; Zheng et al。,1998; Humbert等人)的量的调节,2000)。 p35-Cdk5和p39-Cdk5复合物对盐和洗涤剂浓度的敏感性不同(Hisanaga和Saito,2003; Sato et al。,2007; Yamada等人, 2007; Asada 等人,2008)。 Cdk5激活可以通过Cdk5与其结合的激活剂的免疫沉淀直接测量,随后进行Cdk5激酶测定。在该方案中,用于细胞裂解和免疫沉淀的缓冲液旨在保持p35-和p39-Cdk5复合物以评估总Cdk5活性。裂解细胞,并在核后上清液中测定蛋白浓度。 Cdk5在实验组之间从等量的总蛋白免疫沉淀。然后进行洗涤以除去外来蛋白质并平衡激酶缓冲液中的Cdk5-活化剂复合物。然后将Cdk5与组蛋白H1孵育,组蛋白H1是Cdk5和[γ- 32 P] ATP在体外成功建立的靶标。反应通过SDS-PAGE解析并转移到膜上,用于可视化H1磷酸化和免疫沉淀的Cdk5水平的免疫印迹。我们已经使用该测定来建立p39作为少突神经胶质谱系中Cdk5的主要活化剂。然而,该测定法适用于对裂解条件进行适当调整的其它细胞谱系或组织。
【背景】虽然Cdk5通常与神经元功能相关,但最近的工作已经证明Cdk5也可以调节少突胶质细胞祖细胞(OPC)的发育(Tang等人,1998; ...

Murine Bronchoalveolar Lavage
Author:
Date:
2017-05-20
[Abstract]  A basic Bronchoalveolar lavage (BAL) procedure in mouse is described here. Cells and fluids obtained from BAL can be analyzed by Hema3-staining, immunostaining, Fluorescence-activated cell sorting (FACS), PCR, bicinchoninic acid protein assay, enzyme-linked immunosorbent assay (ELISA), luminex assays, etc., to examine the immune cells, pathogens, proteins such as cytokines/chemokines, and the expression levels of inflammation-related and other genes in the cells. This will help to understand the underlying mechanisms of these lung diseases and develop specific and effective drugs. [摘要]  这里描述了小鼠中基本的支气管肺泡灌洗(BAL)程序。可以通过Hema3染色,免疫染色,荧光激活细胞分选(FACS),PCR,二金鸡宁酸蛋白测定,酶联免疫吸附测定(ELISA),luminex检测等来分析从BAL获得的细胞和液体。 / em>,以检查免疫细胞,病原体,蛋白质如细胞因子/趋化因子,以及细胞中炎症相关基因和其他基因的表达水平。这将有助于了解这些肺部疾病的潜在机制,并开发具体有效的药物。

背景 支气管肺泡灌洗(BAL)是通常用于诊断肺部疾病(包括肺癌)的简单且典型的方法(Daubeuf和Frossard,2012)。它用于采样肺组分,以确定肺中的蛋白质组成,免疫细胞和病原体。肺部慢性炎症在肺癌起始和进展中起关键作用。为了阐明肺肿瘤发生的炎症的潜在机制,我们的实验室使用了一种基本的BAL方案来确定肺部免疫反应(Qu等人,2015; Zhou等)。 ,2015; Sun等人,2016; Zhou等人,2017)。

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