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StepOne Real-Time PCR System

实时PCR系统

Company: Thermo Fisher Scientific
Catalog#: 4376600
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Organotypic Brain Cultures: A Framework for Studying CNS Infection by Neurotropic Viruses and Screening Antiviral Drugs
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Date:
2017-11-20
[Abstract]  According to the World Health Organization (WHO), at least 50% of emerging viruses endowed with pathogenicity in humans can infect the Central Nervous System (CNS) with induction of encephalitis and other neurologic diseases (Taylor et al., 2001; Olival and Daszak, 2005). While neurological diseases are progressively documented, the underlying cellular and molecular mechanisms involved in virus infection and dissemination within the CNS are still poorly understood (Swanson and McGavern, 2015; Ludlow et al., 2016). For example, measles virus (MeV) can infect neural cells, and cause a persistent brain infections leading to lethal encephalitis from several months to years after primary infection with no available treatment (Reuter and Schneider-Schaulies, 2010; Laksono et ... [摘要]  根据世界卫生组织(WHO)的统计,至少有50%的新发病毒具有致病性,可感染中枢神经系统(CNS),并诱发脑炎和其他神经系统疾病(Taylor et al。 >,2001; Olival和Daszak,2005)。虽然神经系统疾病逐渐被记录下来,但涉及病毒感染和在CNS内传播的潜在细胞和分子机制仍然知之甚少(Swanson and McGavern,2015; Ludlow等人,2016)。例如,麻疹病毒(MeV)可以感染神经细胞,并在原发感染后几个月至数年导致持续的脑感染,导致致死性脑炎,而没有可用的治疗(Reuter和Schneider-Schaulies,2010; Laksono等人。,2016)。器官型脑文化(OBC)是病毒学领域的一个合适的模型,以更好地理解中枢神经系统感染。实际上,它不仅可以研究中枢神经系统内嗜神经病毒的感染和传播,而且还可以作为创新性抗病毒策略或分子的筛选模型,如我们最近发表的有关融合抑制肽和HSP90伴侣蛋白活性抑制剂的研究, 17-DMAG(Welsch等人,2013; ...

Quantification of Trypanosoma cruzi in Tissue and Trypanosoma cruzi Killing Assay
Author:
Date:
2017-11-20
[Abstract]  Infection with Trypanosoma cruzi causes Chagas disease. The methods provided here allow for the quantification of T. cruzi in the liver, heart, and blood of intraperitoneally-infected mice and analysis of the killing activity of the cells infected with T. cruzi in vitro. [摘要]  感染克氏锥虫(Trypanosoma cruzi)引起恰加斯病(Chagas disease)。 这里提供的方法允许量化T。 克氏锥虫在感染腹腔的小鼠的肝脏,心脏和血液中分析,并分析克氏锥虫在体外感染的细胞的杀伤活性。
【背景】以慢性心肌病为特征的恰加斯病是由细胞内原生动物寄生虫克氏锥虫感染引起的(Bonney等人,2015年)。拉丁美洲大约有2000万人患有南美锥虫病(里贝罗等人,2012; Flavia Nardy等人,2015),已成为全球性的健康问题由于感染者的迁移(Andrade等人,2014; Garcia等人,2015; Requena-Mendez等人), 2015年)。已经开发了几种药物,如nifurtimox和benznidazole,用于治疗恰加斯病。然而,这些药物需要服用数月,并有严重的副作用(Viotti et al。,2009)。治疗的主要目的是抑制T。克鲁兹通过血液传播以及防止心力衰竭的发展。因此,定量T的协议。 cruzi 和 T。这里介绍的克鲁兹杀螨试验可能有助于发展南美锥虫病的新型诊断方法和治疗策略。

Antisense Oligonucleotide-mediated Knockdown in Mammary Tumor Organoids
Author:
Date:
2017-08-20
[Abstract]  Primary mammary tumor organoids grown in 3D are an excellent system to study tumor biology. They resemble the organization and physiology of native epithelia more closely than cancer cell lines grown in 2D, and additionally model interactions with the ECM (Boj et al., 2015; Clevers, 2016; Shamir and Ewald, 2014). Mammary tumor organoids are therefore a promising model system to identify and characterize novel drivers of breast cancer that would be unlikely to be identified using 2D cell lines. Antisense oligonucleotides can be used to efficiently and specifically knockdown target genes in the cell (Bennett et al., 2017). They can be taken up freely by organoids without the need for a transfection agent, making them a convenient tool for routine lab studies and screens. [摘要]  在3D生长的原发性乳腺肿瘤组织是研究肿瘤生物学的优秀系统。 它们类似于天然上皮的组织和生理学,比2D生长的癌细胞系更为紧密,另外还与ECM的模型相互作用(Boj et al。,2015; Clevers,2016; Shamir and Ewald,2014)。 因此,乳腺肿瘤组织因子是一种有希望的模型系统,用于识别和表征不可能使用2D细胞系识别的乳腺癌的新型驱动因素。 反义寡核苷酸可用于有效和特异地敲低细胞中的靶基因(Bennett等,2017)。 它们可以被有机物自由摄取,而不需要转染剂,使其成为常规实验室研究和筛选的便捷工具。
【背景】乳腺癌是全世界妇女中最常见的恶性肿瘤,是妇女癌症死亡率的第二大原因(Siegel等,2017)。为了改善现有的治疗方案,确定和调查具有预防乳腺癌进展潜力的新分子靶标至关重要。我们应用RNA-seq来产生与正常乳腺上皮细胞相比在原发性乳腺肿瘤中失调的长非编码RNA(lncRNA)的综合目录,并将30个先前未表征的lncRNA作为乳腺肿瘤相关RNA(MaTARs)进行优先排序。为了功能评估MaTARs作为肿瘤进展的关键驱动因素,我们对3D乳腺肿瘤组织中的所有30个MaTARs进行了反义寡核苷酸(ASO)介导的敲低分析(Diermeier等,2016)。
   ASO是短(20-mers),含有硫代磷酸酯修饰的核苷酸的单链DNA分子以及2'-ribose(5-10-5 ...

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