Name: propagating and detecting an infectious molecular clone of maedi-visna virus that expresses green fluorescent protein
Uploaded: 2011-10-09T14:00:00
Description: Watch this Scientific Journal Video about Propagating and Detecting an Infectious Molecular Clone of Maedi-visna Virus that Expresses Green Fluorescent Protein at JoVE.com

这项工作是由冰岛研究基金和冰岛大学的研究基金资助。

1。转分子克隆两个质粒，p8XSp5 - EGFP和p67r 12 KB和450 KB，分别载于9,10。 <ol><li>剪下的两个质粒，即4.4微克p8XSp5 - EGFP转染前用XbaI和结扎和1.6微克p67r摩尔数量。 </li><li>结扎，使用50μl反应体系，在16 ° C过夜孵育1魏斯单位的连接酶。 </li><li>当结扎完成后，在65℃孵育15分钟连接酶失活结扎组合。这一步可以省略。 </li><li>转染前两天，种子10 6 SCP的细胞在T25组织培...

<ol>
	<li>Sigurdsson, B., Palsson, P. A., Grimsson, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Visna,+a+demyelinating+transmissable+disease+of+sheep.">Visna, a demyelinating transmissable disease of sheep.</a> J. Neuropathol. Exp. Neurol. 14, 389-403 (1957).</li><li>Gorrell, M. D., Brandon, M. R., Sheffer, D., Adams, R. J., Narayan, O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ovine+lentivirus+is+macrophagetropic+and+does+not+replicate+productively+in+T+lymphocytes.">Ovine lentivirus is macrophagetropic and does not replicate productively in T lymphocytes.</a> J. Virol. 66, 2679-2688 (1992).</li><li>Andresdottir, V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Biological+and+genetic+differences+between+lung-+and+brain-derived+isolates+of+maedi-visna+virus.">Biological and genetic differences between lung- and brain-derived isolates of maedi-visna virus.</a> Virus Genes. 16, 281-293 (1998).</li><li>Georgsson, G., Houwers, D. J., Palsson, P. A., Petursson, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Expression+of+viral+antigens+in+the+central+nervous+system+of+visna-infected+sheep:+an+immunohistochemical+study+on+experimental+visna+induced+by+virus+strains+of+increased+neurovirulence.">Expression of viral antigens in the central nervous system of visna-infected sheep: an immunohistochemical study on experimental visna induced by virus strains of increased neurovirulence.</a> Acta Neuropathol. 77, 299-306 (1989).</li><li>Turelli, P., Guiguen, F., Mornex, J. F., Vigne, R., Querat, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=dUTPase-minus+caprine+arthritis-encephalitis+virus+is+attenuated+for+pathogenesis+and+accumulates+G-to-A+substitutions.">dUTPase-minus caprine arthritis-encephalitis virus is attenuated for pathogenesis and accumulates G-to-A substitutions.</a> J. Virol. 71, 4522-4530 (1997).</li><li>Petursson, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Visna+virus+dUTPase+is+dispensable+for+neuropathogenicity.">Visna virus dUTPase is dispensable for neuropathogenicity.</a> J. Virol. 72, 1657-1661 (1998).</li><li>Sigurdsson, B., Thormar, H., Palsson, P. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cultivation+of+visna+virus+in+tissue+culture.">Cultivation of visna virus in tissue culture.</a> Arch Gesamte Virusforsch. 10, 368-380 (1960).</li><li>Gudmundsdottir, H. S., Olafsdottir, K., Franzdottir, S. R., Andresdottir, V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Construction+and+characterization+of+an+infectious+molecular+clone+of+maedi-visna+virus+that+expresses+green+fluorescent+protein.">Construction and characterization of an infectious molecular clone of maedi-visna virus that expresses green fluorescent protein.</a> J. Virol. Methods. 168, 98-102 (2010).</li><li>Andresson, O. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nucleotide+sequence+and+biological+properties+of+a+pathogenic+proviral+molecular+clone+of+neurovirulent+visna+virus.">Nucleotide sequence and biological properties of a pathogenic proviral molecular clone of neurovirulent visna virus.</a> Virology. 193, 89-105 (1993).</li><li>Skraban, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Naturally+occurring+mutations+within+39+amino+acids+in+the+envelope+glycoprotein+of+maedi-visna+virus+alter+the+neutralization+phenotype.">Naturally occurring mutations within 39 amino acids in the envelope glycoprotein of maedi-visna virus alter the neutralization phenotype.</a> J. Virol. 73, 8064-8072 (1999).</li><li>Reed, L. J., Muench, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simple+method+of+estimating+fifty+percent+endpoints.">A simple method of estimating fifty percent endpoints.</a> American Journal of Hygiene. 27, 493-497 (1938).</li><li>Berkowitz, R. D., Ilves, H., Plavec, I., Veres, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+transfer+systems+derived+from+Visna+virus:+analysis+of+virus+production+and+infectivity.">Gene transfer systems derived from Visna virus: analysis of virus production and infectivity.</a> Virology. 279, 116-129 (2001).</li></ol>

这里介绍的MVV分子克隆的GFP表达，应有助于分析宿主细胞相互作用，并在体外和体内的MVV的致病性。复制后7-14天获得的病毒无疑已经收购了一些由于不准确的逆转录的突变。不过，也有作为一个周期载体使用这个克隆的限制。其中之一是限制使用克隆绵羊和山羊的起源细胞。使用我们的构造，这些细胞的转染效率只有5-15％，和使用的pEGFP - N3载体转染效率是15-20％相比，超过90％，使用293 - T细胞?...

<table border="1"><tbody><tr><td> 试剂名称 </td><td> 公司 </td><td> 目录编号 </td></tr><tr><td> DMEM培养液</td><td> Gibco公司</td><td> 10938025 </td></tr><tr><td> OPTI - MEM </td><td> Gibco公司</td><td> 51985018 </td></tr><tr><td>脂质体2000 </td><td> Invitrogen公司</td><td> 11668019 </td></tr></tbody></table>

propagating and detecting an infectious molecular clone of maedi-visna virus that expresses green fluorescent protein

Maedi visna病毒量（MVV）是一个羊的慢病毒，引起缓慢渐进的间质性肺炎和脑炎1。体内的MVV的主要靶细胞被认为是单核细胞谱系2。某些菌株的MVV可以复制在其他类型的细胞，但是3,4。绿色荧光蛋白是一种常用的标记用于研究活细胞的慢病毒。我们有MVV dUTPase基因插入的EGFP基因。 dUTPase基因是保守的绵羊和山羊的最慢病毒株，并已被证明是在复制 CAEV 5重要。然而，dUTPase已被证明在此研究在体外和体内6使用的MVV分子克隆复制可有可无。 MVV复制是严格限制的绵羊或山羊的起源细胞。我们利用转染和传播病毒的7主要从羊的脉络丛（SCP的细胞）的细胞株。荧光灯的MVV完全传染病和EGFP表达稳定至少6通道8。 TCID 50和EGFP的测量之间有良好的相关性。因此，这种病毒应该被感染细胞的快速检测 8，在体外和体内的细胞嗜性和致病性的研究非常有用。

Watch this Scientific Journal Video about Propagating and Detecting an Infectious Molecular Clone of Maedi-visna Virus that Expresses Green Fluorescent Protein at JoVE.com

Propagating and Detecting an Infectious Molecular Clone of Maedi-visna Virus that Expresses Green Fluorescent Protein

我们描述了一个maedi visna病毒的分子克隆，表达GFP和充分传染病。这种病毒的复制，可以通过使用荧光显微镜和流式细胞仪检测。

宣传和检测Maedi visna病毒传染性表达绿色荧光蛋白的分子克隆

Maedi-visna virus (MVV) is a lentivirus of sheep, causing slowly progressive interstitial pneumonia and encephalitis1. The primary target cells of MVV in ...

Research

JoVE Journal

Immunology and Infection

Specific Marking of HIV-1 Positive Cells using a Rev-dependent Lentiviral Vector Expressing the Green Fluorescent Protein

HIV - 1使用转速依赖的慢病毒表达载体的绿色荧光蛋白阳性细胞的特定标记

Most of HIV-responsive expression vectors are based on the HIV promoter, the long terminal repeat (LTR). While responsive to an early HIV protein, Tat, ...

科研

免疫与感染

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The early events in the interaction between virus and cell can have profound influence on the outcome of infection. Determining the factors 
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Advances in live cell fluorescence microscopy  techniques, as well as the construction of recombinant viral strains that  express fluorescent fusion ...

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造型埃博拉病毒的生命周期在生物安全二级条件下的病毒样颗粒包含Tetracistronic小基因组

Ebola viruses cause severe hemorrhagic fevers in humans and non-human primates, with case fatality rates as high as 90%. There are no approved vaccines or ...

Co-immunoprecipitation of the Mouse Mx1 Protein with the Influenza A Virus Nucleoprotein

免疫共沉淀鼠标MX1蛋白与流感病毒核蛋白

Studying the interaction between proteins is key in understanding their function(s). A very powerful method that is frequently used to study interactions ...

Establishment of a High-throughput Setup for Screening Small Molecules That Modulate c-di-GMP Signaling in Pseudomonas aeruginosa

Establishment of a High-throughput Setup for Screening Small Molecules That Modulate c-di-GMP Signaling in Pseudomonas aeruginosa

高通量设置的建立筛选小分子能调节C-二GMP信令<em&gt;绿脓杆菌</em

Bacterial resistance to traditional antibiotics has driven research attempts to identify new drug targets in recently discovered regulatory pathways. ...

Zika Virus Infectious Cell Culture System and the In Vitro Prophylactic Effect of Interferons

Zika Virus Infectious Cell Culture System and the In Vitro Prophylactic Effect of Interferons

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Zika Virus (ZIKV) is an emerging pathogen that is linked to fetal developmental abnormalities such as microcephaly, eye defects, and impaired growth. ZIKV ...

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一个<em&gt;体外</em&gt; Caseum结合测定，预测药物在渗透结核病变

The eradication of tuberculosis disease requires drug regimens that can penetrate the multiple layers of complex pulmonary lesions. Drug distribution in ...

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Infectious cDNA clones allow for genetic manipulation of a virus, thus facilitating work on vaccines, pathogenesis, replication, transmission and viral ...