Viruses

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    Protocols in Current Issue
    Quantification of Infectious Sendai Virus Using Plaque Assay
    Authors:  Narihito Tatsumoto, Takamasa Miyauchi, Moshe Arditi and Michifumi Yamashita, date: 11/05/2018, view: 2034, Q&A: 0
    [Abstract] Sendai virus (SeV) is an enveloped, single-stranded RNA virus of the family Paramyxoviridae. SeV is a useful tool to study its infectious pathomechanism in immunology and the pathomechanism of a murine model of IgA nephropathy. Virus quantification is essential not only to determine the original viral titers for an appropriate ...
    Sendai Virus Propagation Using Chicken Eggs
    Authors:  Narihito Tatsumoto, Moshe Arditi and Michifumi Yamashita, date: 09/20/2018, view: 2117, Q&A: 0
    [Abstract] Sendai virus is a member of the family Paramyxoviridae, and an enveloped virus with a negative-stranded RNA genome. Sendai virus is not pathogenic to humans, but for mice and can cause pneumonia in mice. Easy and efficient techniques for propagating Sendai virus are required for studying virus replication, virus-induced innate- and ...
    Organotypic Brain Cultures: A Framework for Studying CNS Infection by Neurotropic Viruses and Screening Antiviral Drugs
    [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 ...
    Multicolor Stimulated Emission Depletion (STED) Microscopy to Generate High-resolution Images of Respiratory Syncytial Virus Particles and Infected Cells
    [Abstract] Human respiratory syncytial virus (RSV) infection in human lung epithelial A549 cells induces filopodia, cellular protrusions consisting of F-actin, that extend to neighboring uninfected cells (Mehedi et al., 2016). High-resolution imaging via stimulated emission depletion (STED) microscopy revealed filamentous RSV particles along these ...
    Establishment of a Human Cell Line Persistently Infected with Sendai Virus
    Authors:  Christopher Coakley, Cara Peter, Stephanie Fabry and Saurabh Chattopadhyay, date: 08/20/2017, view: 4476, Q&A: 0
    [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 ...
    Biochemical Analysis of Caspase-8-dependent Proteolysis of IRF3 in Virus-infected Cells
    Authors:  Gayatri Subramanian, Karen Pan, Ritu Chakravarti and Saurabh Chattopadhyay, date: 11/20/2016, view: 5304, Q&A: 0
    [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 ...
    Respiratory Syncytial Virus Infection in Mice and Detection of Viral Genomes in the Lung Using RT-qPCR
    Authors:  Yan Sun and Carolina B. López, date: 05/20/2016, view: 5978, Q&A: 0
    [Abstract] Respiratory syncytial virus (RSV) is a single-stranded negative sense RNA virus that belongs to the paramyxovirus family. RSV infections lead to a variety of clinical outcomes ranging from a mild “cold-like disease” to death. Infection is usually more severe in infants and the elderly. RSV is associated with the development and ...
    Preparation of Respiratory Syncytial Virus with High or Low Content of Defective Viral Particles and Their Purification from Viral Stocks
    Authors:  Yan Sun and Carolina B. López, date: 05/20/2016, view: 10177, Q&A: 0
    [Abstract] Respiratory syncytial virus (RSV) belongs to the paramyxovirus family that includes many clinically relevant viruses, such as the human metapneumovirus and measles. RSV infection can cause severe disease in infants, the elderly, and some immunocompromised adults. During RSV replication, a series of truncated forms of the viral genome is ...



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