ArticlePLoS pathogens2019
Human IFIT proteins inhibit lytic replication of KSHV: A new feed-forward loop in the innate immune system.
Article in PLoS pathogens, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 43 citations in OpenAlex.
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- Transcriptomic analysis of coxsackievirus B3 infection in induced pluripotent stem cell-derived brain-like endothelial cells.Journal of virology · 2025Article
- The molecular language of RNA 5' ends: guardians of RNA identity and immunity.RNA (New York, N.Y.) · 2024Review
- Unraveling the Role of RNase L Knockout in Alleviating Immune Response Activation in Mice Bone Marrow after Irradiation.International journal of molecular sciences · 2024Article
- Citrullination profile analysis reveals peptidylarginine deaminase 3 as an HSV-1 target to dampen the activity of candidate antiviral restriction factors.PLoS pathogens · 2023Article
- POLE3 is a repressor of unintegrated HIV-1 DNA required for efficient virus integration and escape from innate immune sensing.Science advances · 2023Article
- Genome-Wide CRISPR-Cas9 Screen Identifies SMCHD1 as a Restriction Factor for Herpesviruses.mBio · 2023Article
- RNF213 modulates γ-herpesvirus infection and reactivation via targeting the viral Replication and Transcription Activator.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Barrier-to-autointegration factor 1 promotes gammaherpesvirus reactivation from latency.Nature communications · 2023Article
- Article
- The regulation of KSHV lytic reactivation by viral and cellular factors.Current opinion in virology · 2022Review
- Article
- Proteomic and Metabolomic Characterization of SARS-CoV-2-Infected Cynomolgus Macaque at Early Stage.Frontiers in immunology · 2022Article
- Bioinformatics and systems-biology analysis to determine the effects of Coronavirus disease 2019 on patients with allergic asthma.Frontiers in immunology · 2022Article
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- RNA Binding Proteins as Pioneer Determinants of Infection: Protective, Proviral, or Both?Viruses · 2021Review
- Human cytomegalovirus-induced host protein citrullination is crucial for viral replication.Nature communications · 2021Article
- Targeting XPO1 enhances innate immune response and inhibits KSHV lytic replication during primary infection by nuclear stabilization of the p62 autophagy adaptor protein.Cell death & disease · 2021Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) is causally associated with Kaposi's sarcoma, primary effusion lymphoma (PEL) and multicentric Castleman's disease. The IFIT family of proteins inhibits replication of some viruses, but their effects on KSHV lytic replication was unknown. Here we show that KSHV lytic replication induces IFIT expression in epithelial cells. Depletion of IFIT1, IFIT2 and IFIT3 (IFITs) increased infectious KSHV virion production 25-32-fold compared to that in control cells. KSHV lytic gene expression was upregulated broadly with preferential activation of several genes involved in lytic viral replication. Intracellular KSHV genome numbers were also increased by IFIT knockdown, consistent with inhibition of KSHV DNA replication by IFITs. RNA seq demonstrated that IFIT depletion also led to downregulation of IFN β and several interferon-stimulated genes (ISGs), especially OAS proteins. OAS down-regulation led to decreased RNase L activity and slightly increased total RNA yield. IFIT immunoprecipitation also showed that IFIT1 bound to viral mRNAs and cellular capped mRNAs but not to uncapped RNA or trimethylated RNAs, suggesting that IFIT1 may also inhibit viral mRNA expression through direct binding. In summary, IFIT inhibits KSHV lytic replication through positively regulating the IFN β and OAS RNase L pathway to degrade RNA in addition to possibly directly targeting viral mRNAs.
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Registered trials
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