{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T05:03:05Z","timestamp":1789621385414,"version":"build-2803163510"},"reference-count":73,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T00:00:00Z","timestamp":1738281600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T00:00:00Z","timestamp":1738281600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2025,1,31]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title\/>\n            <jats:p>\n              The type I interferon signaling pathway constitutes a pivotal component of the innate immune response, encompassing the cGAS\/STING and JAK\/STAT pathways. Drugs that affect the body\u2019s innate immune response could potentially be used as broad-spectrum antivirals. In this study, the antiviral activities of 25 flavonoids against pseudorabies virus (PRV) were tested in PK-15 cells. Eight active flavonoids were identified, with IC\n              <jats:sub>50<\/jats:sub>\n              values ranging from 23.24 to 323.09 \u00b5M. Subsequently, the regulatory effects of these flavonoids on the cGAS\/STING pathway in PRV-infected cells were investigated. It was found that Myricetin significantly increased the transcriptional levels of\n              <jats:italic>cGAS<\/jats:italic>\n              ,\n              <jats:italic>STING<\/jats:italic>\n              ,\n              <jats:italic>IRF3<\/jats:italic>\n              , and\n              <jats:italic>IFN-\u03b2<\/jats:italic>\n              , which had been reduced by PRV infection. The regulation of the type I in\n            <\/jats:p>\n            <jats:p>terferon signaling pathways by myricetin following PRV infection was further investigated through the production of cGAMP and the assessment of transcriptional and protein levels of pivotal genes and proteins. To confirm the activation of the innate immune response, a dual luciferase gene reporter study found that the expression of the IFN-\u03b2 promoter in the myricetin-treated group was significantly elevated in a cellular model of type I interferon signaling pathway, and the contents of IFN-\u03b2 were also significantly higher than those observed in the infected-untreated group in a PRV-infected mice model. Moreover, the transcriptional and protein levels of key genes and proteins in cell and mouse models exhibited analogous outcomes to those observed in PRV-infected cells. These findings suggest that myricetin can effectively activate the type I interferon signaling pathway, thereby enhancing the innate immune response during PRV infection.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>IMPORTANCE<\/jats:title>\n            <jats:p>\n              PRV, belonging to the\n              <jats:italic>Herpesviridae<\/jats:italic>\n              family, is an easily overlooked zoonotic pathogen that can threaten human health. The immunoprotective efficacy of conventional vaccines is significantly reduced due to the continuous mutation of the PRV genome, which constantly generates new viral strains. Therefore, there is a need to develop potent therapeutic drugs. PRV is capable of evading the host's natural immunity by suppressing the host's type I interferon signaling pathway, and the search for drugs that activate natural immunity can induce the body to produce type I IFN interferon and exert antiviral effects. Accordingly, the present study sought to identify active compounds from flavonoids that modulate the type I IFN interferon signaling pathway and thus inhibit the proliferation of PRV, which provides a new idea for the development of anti-PRV drugs from flavonoids that modulate the type I IFN interferon signaling pathway to enhance the body's antiviral immunity.\n            <\/jats:p>\n          <\/jats:sec>","DOI":"10.1128\/jvi.01567-24","type":"journal-article","created":{"date-parts":[[2024,11,27]],"date-time":"2024-11-27T18:14:37Z","timestamp":1732731277000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["The antiviral activity of myricetin against pseudorabies virus through regulation of the type I interferon signaling pathway"],"prefix":"10.1128","volume":"99","author":[{"given":"Yizhen","family":"Song","sequence":"first","affiliation":[{"name":"Natural Medicine Research Center, College of 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