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SW 28 Ti Swinging-Bucket Aluminum Rotor

SW 28 Ti转子包,摇摆桶,铝,6×38.5mL,28,000rpm,141,000×g

Company: Beckman Coulter
Catalog#: SW 28 Ti
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HIVGKO: A Tool to Assess HIV-1 Latency Reversal Agents in Human Primary CD4+ T Cells
Author:
Date:
2018-10-20
[Abstract]  While able to suppress HIV replication in HIV infected individuals, combination antiretroviral therapy (ART) fails to eliminate viral latent reservoir, which consists in integrated transcriptional silenced HIV provirus. So far, identification of latently-infected cells has relied on activating cells to induce expression of HIV proteins which can then be detected. Unfortunately, this activation significantly changed the cell phenotype. We developed a novel HIV reporter, named HIVGKO, that allows the purification of latently-infected cells in absence of reactivation. Indeed, latent cells can be identified by expression of the EF1a-driven mKO2 and lack of expression of the LTR-driven csGFP. This protocol can be used to study the effectiveness of LRAs (Latency Reversal Agents) in ... [摘要]  虽然能够抑制HIV感染个体中的HIV复制,但联合抗逆转录病毒疗法(ART)无法消除病毒潜伏性储库,其包含整合的转录沉默的HIV原病毒。 到目前为止,潜伏感染细胞的鉴定依赖于激活细胞以诱导HIV蛋白的表达,然后可以检测到这些蛋白的表达。 不幸的是,这种激活显着改变了细胞表型。 我们开发了一种名为HIV GKO 的新型HIV报告基因,可以在没有再激活的情况下纯化潜伏感染的细胞。 实际上,可以通过EF1a驱动的mKO2的表达和LTR驱动的csGFP的缺乏表达来鉴定潜伏细胞。 该方案可用于研究LCA(潜伏期逆转剂)在原代细胞中重新激活潜伏HIV的有效性。

【背景】新版双标记病毒(HIV GKO )含有5'LTR中HIV-1启动子控制下的密码子转换eGFP(csGFP)和一种独特的无关荧光蛋白 mKO2在细胞延伸因子αα启动子(EF1α)的控制下。 当使用与遗传相关的荧光蛋白时,由于重组问题,在这些报道分子中使用不相关的荧光蛋白是很重要的。 因此,生产性感染的细胞主要是csGFP + mKO2 + (有些可能只是GFP + ),而潜伏感染的细胞是csGFP - mKO2 + 。 流式细胞仪如分拣机AriaII允许纯化纯感染人群(生产性,潜伏性和/或未感染),而分析仪LSRII允许评估HIV GKO LTR的转录激活。 感染后的时间很短。

Qualitative in vivo Bioluminescence Imaging
Author:
Date:
2018-09-20
[Abstract]  Bioluminescence imaging (BLI) technology is an advanced method of carrying out molecular imaging on live laboratory animals in vivo. This powerful technique is widely-used in studying a variety of biological processes, and it has been an ideal tool in exploring tumor growth and metastatic spread in real-time. This technique ensures the optimal use of laboratory animal resources, particularly the ethical principle of reduction in animal use, given its non-invasive nature, ensuring that ongoing biological processes can be studied over time in the same animal, without the need to euthanize groups of mice at specific time points. In this protocol, the luciferase imaging technique was developed to study the effect of co-inoculating pericytes (contractile, αSMA+ mesenchymal ... [摘要]  生物发光成像(BLI)技术是一种在体内实验室动物上进行分子成像的先进方法。 这种强大的技术广泛应用于研究各种生物过程,是实时探索肿瘤生长和转移扩散的理想工具。 该技术确保实验室动物资源的最佳利用,特别是减少动物使用的伦理原则,考虑到其非侵入性,确保可以在同一动物中随时间研究正在进行的生物过程,而无需安乐死 小鼠在特定的时间点。 在该方案中,开发了荧光素酶成像技术以研究共同接种周细胞(收缩性,αSMA + 间充质干细胞样细胞,位于微血管内的细胞)对生长和转移性扩散的影响。 卵巢癌使用侵袭性卵巢癌细胞系-OVCAR-5-作为例子。

【背景】生物发光成像(BLI)的原理是基于相对简单的生化过程的发光特性,即,荧光素酶介导的分子底物荧光素氧化产生光。在癌症研究中,BLI是一种流行的工具(Contag et ...

Generation of Luciferase-expressing Tumor Cell Lines
Author:
Date:
2018-04-20
[Abstract]  Murine tumor models have been critical to advances in our knowledge of tumor physiology and for the development of effective tumor therapies. Essential to these studies is the ability to both track tumor development and quantify tumor burden in vivo. For this purpose, the introduction of genes that confer tumors with bioluminescent properties has been a critical advance for oncologic studies in rodents. Methods of introducing bioluminescent genes, such as firefly luciferase, by viral transduction has allowed for the production of tumor cell lines that can be followed in vivo longitudinally over long periods of time. Here we describe methods for the production of stable luciferase expressing tumor cell lines by lentiviral transduction. [摘要]  鼠肿瘤模型对于我们对肿瘤生理学知识和有效肿瘤治疗方法发展的进展至关重要。 这些研究的关键是能够跟踪肿瘤发展并量化体内肿瘤负荷。 为此,引入赋予肿瘤生物发光特性的基因已经成为啮齿动物肿瘤研究的重要进展。 通过病毒转导引入生物发光基因(例如萤火虫萤光素酶)的方法已经允许产生可以在体内纵向长时间地进行的肿瘤细胞系。 在这里我们描述了通过慢病毒转导产生稳定表达荧光素酶的肿瘤细胞系的方法。

【背景】体内跟踪细胞最重要的是能够通过微创方法从外部检测它们。使用来自萤火虫的荧光素酶(Photinus pyralis )的酶促生物发光是用于体内基于图像的细胞追踪的广泛使用的方法。生物发光已被用于各种体内应用,包括报告基因表达的无创成像(Herschman,2004),研究昼夜节律(Southern and Millar,2005),成像脑卒中(Vandeputte

萤火虫荧光素酶氧化物萤光素在分子氧,镁和三磷酸腺苷存在下在560nm产生黄绿色光(Wilson和Hastings,1998; ...

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