ArticlePLoS pathogens2023
circMORC3-encoded novel protein negatively regulates antiviral immunity through synergizing with host gene MORC3.
Article in PLoS pathogens, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Decreased expression of circ-CCDC134 mediated by TNF-α in patients with rheumatoid arthritis affects T cell function via targeting protein phosphatase 2A.Arthritis research & therapy · 2026Article
- CircZFYVE1 functions as a competitive endogenous RNA to enhance LSM14A-mediated antiviral defense against influenza A virus.Frontiers in immunology · 2026Article
- Animal virus-host interactions mediated by non-coding RNAs.Frontiers in cellular and infection microbiology · 2026Review
- CircMYO9A inhibits influenza A virus replication by dampening haemagglutinin cleavage via increasing SERPINE1/PAI-1 expression.Emerging microbes & infections · 2025Article
- Functional mechanisms of circular RNA‑encoded peptides and future research strategies and directions in nasopharyngeal carcinoma (Review).International journal of oncology · 2025Review
- Article
- Peptide Drug: Design and Clinical Applications.MedComm · 2025Review
- Functional characterization of a novel protein-coding circular RNA, circRNA_1193, from themBio · 2025Article
- A Novel 167-Amino Acid Protein Encoded by CircPCSK6 Inhibits Intrahepatic Cholangiocarcinoma Progression via IKBα Ubiquitination.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- CircRNA and lncRNA-encoded peptide in diseases, an update review.Molecular cancer · 2024Review
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The protein-coding ability of circRNAs has recently been a hot topic, but the role of protein-coding circRNAs in antiviral innate immunity of teleost fish has rarely been reported. Here, we identified a novel circRNA, termed circMORC3, derived from Microrchidia 3 (MORC3) gene in Miichthys miiuy. circMORC3 can inhibit the expression of antiviral cytokines. In addition, circMORC3 encodes a novel peptide with a length of 84 amino acids termed MORC3-84aa. MORC3-84aa not only significantly inhibited TRIF-mediated activation of IRF3 and NF-κB signaling pathways, but also effectively suppressed the expression of antiviral cytokines triggered by RNA virus Siniperca chuatsi rhabdovirus (SCRV). We found that MORC3-84aa directly interacted with TRIF and negatively regulated TRIF protein expression. In addition, host gene MORC3 attenuates SCRV-induced IFN and ISG expression. Mechanistically, MORC3-84aa promotes autophagic degradation of TRIF by enhancing K6-linked ubiquitination and inhibits TRIF-mediated activation of the type I interferon signaling pathway. And the host gene MORC3 not only repressed IRF3 protein expression but also inhibited IRF3 phosphorylation levels. Our study shows that circMORC3 and host gene MORC3 played a synergistic role in viral immune escape.
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