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Sodium Hydroxide Certified ACS Pellets NaOH

Company: Fisher Scientific
Catalog#: S318-500
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Advances in Proximity Ligation in situ Hybridization (PLISH)
Author:
Date:
2020-11-05
[Abstract]  Understanding tissues in the context of development, maintenance and disease requires determining the molecular profiles of individual cells within their native in vivo spatial context. We developed a Proximity Ligation in situ Hybridization technology (PLISH) that enables quantitative measurement of single cell gene expression in intact tissues, which we have now updated. By recording spatial information for every profiled cell, PLISH enables retrospective mapping of distinct cell classes and inference of their in vivo interactions. PLISH has high sensitivity, specificity and signal to noise ratio. It is also rapid, scalable, and does not require expertise in molecular biology so it can be easily adopted by basic and clinical researchers. [摘要]  [摘要]在发育,维持和疾病的背景下了解组织需要确定单个细胞在其天然体内空间范围内的分子谱。我们开发了一种邻近连接原位杂交技术(PLISH),该技术能够定量测量完整组织中单细胞基因的表达,现已更新。通过记录每个分析细胞的空间信息,PLISH可以回顾性绘制不同细胞类别并推断其体内 互动。PLISH具有很高的灵敏度,特异性和信噪比。它也快速,可扩展,并且不需要分子生物学方面的专门知识,因此基础和临床研究人员可以轻松地采用它。

[背景技术]我们最近开发了一种复用原位称为PLISH(邻位连接杂交技术原位杂交)(Nagendran等人,2018)。PLISH与其他现有的空间转录组学技术不同,因为它结合了高性能,快速多路复用,低成本和技术简单性(Wilbrey -Clark等人,2020年)。可以通过自动计算完整的冷冻或石蜡包埋组织中单细胞表达图谱来分析PLISH结果,它与同时进行的免疫染色兼容。

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Generation, Analyzing and in-vivo Drug Treatment of Drosophila Models with IBMPFD
Author:
Date:
2020-05-20
[Abstract]  Missense mutations of p97/cdc48/Valosin-containing protein (VCP) cause inclusion body myopathy, Paget disease with frontotemporal dementia (IBMPFD) and other neurodegenerative diseases. The pathological mechanism of IBMPFD is not clear and there is no treatment. We generated Drosophila models of IBMPFD in adult flight muscle in vivo. Here we describe a variety of assays to characterize disease pathology and dissect disease mechanism, and the consequences of in vivo feeding of VCP inhibitors. [摘要]  [ 摘要] p97 / cdc48 / Valosin 含蛋白(VCP)的错义突变导致包涵体肌病,额颞叶痴呆的Paget病(IBMPFD)和其他神经退行性疾病。IBMPFD的病理机制尚不清楚,也没有治疗方法。我们生成了在成人体内飞行肌肉中IBMPFD的果蝇模型。在这里,我们描述了各种测定方法,以表征疾病病理和解剖疾病机制,以及体内VCP抑制剂的喂养后果。

[ 背景] VCP / p97 突变导致包涵体肌病,骨骼的Paget病和额颞叶性痴呆(IBMPFD),这是以常染色体显性方式在包括脑,肌肉和骨骼在内的多个系统中退化的疾病(Watts 等人,2004年) )。VCP的突变还与1-2%的散发性肌萎缩性侧索硬化症(ALS)以及遗传性痉挛性截瘫和Charcot-Marie-Tooth 2神经病有关(Abramzon 等,2012; de Bot 等,2012; Gonzalez 等,2014)。R155H突变是患者中最常见的突变,而具有A232E突变的个体具有最严重的临床表现(Kimonis 等,2008a; Ritson 等,2010)。90%的IBMPFD患者出现肌病,这是最早的症状(Weihl 等,2009)。50%的患者会发展成佩吉特氏骨病,影响头骨,脊柱,臀部和长骨。三分之一的患者发生额颞叶痴呆(Kimonis 等,2008b; Weihl ...

Centromere Chromosome Orientation Fluorescent in situ Hybridization (Cen-CO-FISH) Detects Sister Chromatid Exchange at the Centromere in Human Cells
Author:
Date:
2018-04-05
[Abstract]  Human centromeres are composed of large tandem arrays of repetitive alpha satellite DNA, which are often sites of aberrant rearrangement in cancers (Mitelman et al., 1997; Padilla-Nash et al., 2001). To date, annotation of the human centromere repetitive sequences remains incomplete, greatly hindering in-depth functional studies of these regions essential for chromosome segregation. In order to monitor sister chromatid exchange happening at the centromere (C-SCE) due to recombination and mutagenic events, I have applied the Chromosome-Orientation Fluorescence in situ Hybridization (CO-FISH) technique to centromeres (Cen-CO-FISH) in human cells. This hybridization-based method involves (1) the incorporation of nucleotide analogs through a single round of ... [摘要]  人类着丝粒由重复的α卫星DNA的大串联阵列组成,这些细胞通常是癌症中异常重排的位点(Mitelman等人,1997; Padilla-Nash等人 >,2001)。迄今为止,对人类着丝粒重复序列的注释仍然不完整,极大地妨碍了这些区域对染色体分离至关重要的深入功能研究。为了监测由于重组和诱变事件而在着丝粒(C-SCE)上发生姊妹染色单体交换,我将染色体定位荧光原位杂交(CO-FISH)技术应用于着丝粒( Cen-CO-FISH)在人类细胞中的表达。这种基于杂交的方法包括(1)通过单轮复制掺入核苷酸类似物,(2)新合成的DNA链的酶消化和(3)单链探针的后续杂交,在不存在变性步骤的情况下。所产生的信号允许基于DNA的5'-3'方向性差异地标记每个姊妹染色单体,并评估指示C-SCE的异常染色模式。应用于人类着丝粒的Cen-CO-FISH方法揭示,人类着丝粒确实在循环细胞中发生重组,导致C-SCE,并且在经历衰老的癌细胞系和原代细胞中着丝粒不稳定性增强(Giunta和Funabiki,2017)。在这里,我介绍了人类细胞中Cen-CO-FISH方法的制备,实验程序和数据采集的详细方案。它还包括该技术的概念性概述,以及代表性图像和评分准则的示例。 Cen-CO-FISH是促进着丝粒重复探索的有用工具。

【背景】人类基因组计划于2003年标记为完成,但它遗漏了超过10%的人类重复DNA(de ...

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