ArticleJournal of virology2016
High-Throughput Small Interfering RNA Screening Identifies Phosphatidylinositol 3-Kinase Class II Alpha as Important for Production of Human Cytomegalovirus Virions.
Article in Journal of virology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
12 citing papers in PubMed, 18 citations in OpenAlex.
- Human MicroRNAs Attenuate the Expression of Immediate Early Proteins and HCMV Replication during Lytic and Latent Infection in Connection with Enhancement of Phosphorylated RelA/p65 (Serine 536) That Binds to MIEP.International journal of molecular sciences · 2022Article
- Structural basis of phosphatidylinositol 3-kinase C2α function.Nature structural & molecular biology · 2022Article
- An Overview of Class II Phosphoinositide 3-Kinases.Current topics in microbiology and immunology · 2022Article
- Advances in molecular characterization of myeloid proliferations associated with Down syndrome.Frontiers in genetics · 2022Review
- Identification and characterization of bisbenzimide compounds that inhibit human cytomegalovirus replication.The Journal of general virology · 2021Article
- Systems Virology and Human Cytomegalovirus: Using High Throughput Approaches to Identify Novel Host-Virus Interactions During Lytic Infection.Frontiers in cellular and infection microbiology · 2020Review
- Kaposi's Sarcoma-Associated Herpesvirus Nonstructural Membrane Protein pK15 Recruits the Class II Phosphatidylinositol 3-Kinase PI3K-C2α To Activate Productive Viral Replication.Journal of virology · 2018Article
- 1-Benzyl-3-cetyl-2-methylimidazolium Iodide (NH125) Is a Broad-Spectrum Inhibitor of Virus Entry with Lysosomotropic Features.Viruses · 2018Article
- Article
- High-throughput screening of a GlaxoSmithKline protein kinase inhibitor set identifies an inhibitor of human cytomegalovirus replication that prevents CREB and histone H3 post-translational modification.The Journal of general virology · 2017Article
- Identification of compounds with anti-human cytomegalovirus activity that inhibit production of IE2 proteins.Antiviral research · 2017Article
- Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
Abstract
unlabelledHigh-throughput small interfering RNA (siRNA) screening is a useful methodology to identify cellular factors required for virus replication. Here we utilized a high-throughput siRNA screen based on detection of a viral antigen by microscopy to interrogate cellular protein kinases and phosphatases for their importance during human cytomegalovirus (HCMV) replication and identified the class II phosphatidylinositol 3-kinase class II alpha (PI3K-C2A) as being involved in HCMV replication. Confirming this observation, infected cells treated with either pooled or individual siRNAs targeting PI3K-C2A mRNA produced approximately 10-fold less infectious virus than the controls. Western blotting and quantitative PCR analysis of infected cells treated with siRNAs indicated that depletion of PI3K-C2A slightly reduced the accumulation of late but not immediate early or early viral antigens and had no appreciable effect on viral DNA synthesis. Analysis of siRNA-treated cells by electron microscopy and Western blotting indicated that PI3K-C2A was not required for the production of viral capsids but did lead to increased numbers of enveloped capsids in the cytoplasm that had undergone secondary envelopment and a reduction in the amount of viral particles exiting the cell. Therefore, PI3K-C2A is a factor important for HCMV replication and has a role in the production of HCMV virions. IMPORTANCE: There is limited information about the cellular factors required for human cytomegalovirus (HCMV) replication. Therefore, to identify proteins involved in HCMV replication, we developed a methodology to conduct a high-throughput siRNA screen of HCMV-infected cells. From our screening data, we focused our studies on the top hit from our screen, the lipid kinase phosphatidylinositol 3-kinase class II alpha (PI3K-C2A), as its role in HCMV replication was unknown. Interestingly, we found that PI3K-C2A is important for the production of HCMV virions and is involved in virion production after secondary envelopment of viral capsids, the encapsidation of HCMV capsids by a lipid bilayer that occurs before virions exit the cell.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.