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RABBIT IgG (H&L) Secondary Antibody Peroxidase Conjugated Pre-adsorbed

RABBIT IgG (H&L) Secondary Antibody Peroxidase Conjugated Pre-adsorbed

公司名称: ROCKLAND
产品编号: 611-103-122
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Establishment of a Human Cell Line Persistently Infected with Sendai Virus
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Date:
2017-08-20
[Abstract]  Interferon regulatory transcription factor 3 (IRF3) is a transcription factor that upon activation by virus infection promotes the synthesis of antiviral genes, such as the interferons (Hiscott, 2007). In addition to inducing genes, IRF3 triggers antiviral apoptosis by RIG-I-like receptor-induced IRF3 mediated pathway of apoptosis (RIPA), which is independent of its transcriptional activity. RIPA protects against lethal virus infection in cells and mice (Chattopadhyay et al., 2016). In the absence of RIPA, caused by genetic ablation, chemical mutagenesis or inhibition of the pattern ... [摘要]  干扰素调节转录因子3(IRF3)是一种通过病毒感染活化促进抗病毒基因如干扰素合成的转录因子(Hiscott,2007)。除了诱导基因外,IRF3通过RIG-I样受体诱导的IRF3介导的凋亡途径(RIPA)引发抗病毒凋亡,其与其转录活性无关。 RIPA可防止细胞和小鼠的致死病毒感染(Chattopadhyay et al。,2016)。在不存在RIPA的情况下,遗传消融引起的化学诱变或模式识别受体(PRR)视黄酸诱导型基因I(RIG-1)的抑制,仙台病毒(SeV)感染不会引发细胞凋亡并持续感染(Peters等人,2008; Chattopadhyay等人,2013)。表达IRF3的野生型(WT)细胞(U4C)经历SeV诱导的凋亡;然而,缺乏IRF3表达的P2.1细胞不能引发病毒凋亡(图1)。人类IRF3的异位表达恢复了P2.1细胞的凋亡活性(P2.1 / IRF3,图1)。 SeV用作研究致病性人类病毒的模型,难以与BSL3设施配合使用。我们以前曾报道,人和小鼠细胞都可以在没有IRF3的凋亡活性的情况下建立SeV持久性(Chattopadhyay et al。,2013)。在这里,我们概述了持续的SeV感染的人类细胞系(图2)的开发的详细程序,其连续表达病毒蛋白并产生低水平的感染性病毒颗粒。
【背景】IRF3对于通过促进抗病毒基因的转录来启动宿主细胞中的抗病毒防御机制至关重要(Hiscott,2007; ...

Biochemical Analysis of Caspase-8-dependent Proteolysis of IRF3 in Virus-infected Cells
Author:
Date:
2016-11-20
[Abstract]  Interferon regulatory factor 3 (IRF3) is a transcription factor, which is critical for the antiviral response against a wide range of viruses (Hiscott, 2007; Ikushima et al., 2013). It gets activated in virus-infected cells via Toll like receptors (TLRs), RIG-I (retinoic acid inducible gene 1) like receptors (RLRs), cyclic GMP-AMP synthase (cGAS) – stimulator of interferon genes (STING), which are sensors of viral components in the cells (Chattopadhyay and Sen, 2014a; 2014b; Hiscott, 2007). IRF3 is a cytoplasmic protein, upon activation by virally activated sensors it gets ... [摘要]  干扰素调节因子3(IRF3)是一种转录因子,对于广泛病毒的抗病毒反应至关重要(Hiscott,2007; Ikushima等,2013)。通过Toll样受体(TLR),RIG-I(视黄酸诱导型基因1)受体(RLR),环状GMP-AMP合成酶(cGAS) - 干扰素基因刺激剂(STING),其在病毒感染的细胞中被激活,其中是细胞中病毒组分的传感器(Chattopadhyay和Sen,2014a; 2014b; Hiscott,2007)。 IRF3是一种细胞质蛋白,当被病毒激活的传感器激活时,其被磷酸化,转移到细胞核并与基因启动子的干扰素敏感反应元件(ISRE)结合以诱导其转录(Hiscott,2007)。 IRF3具有其他功能,包括直接刺激病毒感染细胞凋亡。在该途径中,不需要IRF3的转录活性(Chattopadhyay等,2013b; Chattopadhyay等,2016; Chattopadhyay等,2010; Chattopadhyay和Sen,2010; Chattopadhyay等,2011)。这些途径受宿主因素以及病毒的负调控。我们的研究表明IRF3可以通过caspase-8依赖性切割进行蛋白水解加工(Sears等,2011)。 ...

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