MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6

The innate immune organs and cells detect the invasion of pathogenic microorganisms, which trigger the innate immune response. A proper immune response can protect the organisms from pathogen invasion. However, excessive immunity can destroy immune homeostasis, leading to uncontrolled inflammation o...

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Main Authors: Wenya Gao, Renjie Chang, Yuena Sun, Tianjun Xu
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-02-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2021.647202/full
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author Wenya Gao
Renjie Chang
Yuena Sun
Yuena Sun
Yuena Sun
Tianjun Xu
Tianjun Xu
Tianjun Xu
Tianjun Xu
author_facet Wenya Gao
Renjie Chang
Yuena Sun
Yuena Sun
Yuena Sun
Tianjun Xu
Tianjun Xu
Tianjun Xu
Tianjun Xu
author_sort Wenya Gao
collection DOAJ
description The innate immune organs and cells detect the invasion of pathogenic microorganisms, which trigger the innate immune response. A proper immune response can protect the organisms from pathogen invasion. However, excessive immunity can destroy immune homeostasis, leading to uncontrolled inflammation or pathogen transmission. Evidence shows that the miRNA-mediated immune regulatory network in mammals has had a significant impact, but the antibacterial and antiviral responses involved in miRNAs need to be further studied in lower vertebrates. Here, we report that miR-2187 as a negative regulator playing a critical role in the antiviral and antibacterial response of miiuy croaker. We find that pathogens such as Vibrio anguillarum and Siniperca chuatsi rhabdovirus (SCRV) can up-regulate the expression of miR-2187. Elevated miR-2187 is capable of reducing the production of inflammatory factors and antiviral genes by targeting TRAF6, thereby avoiding excessive inflammatory response. Furthermore, we proved that miR-2187 modulates innate immunity through TRAF6-mediated NF-κB and IRF3 signaling pathways. The above results indicate that miR-2187 acts as an immune inhibitor involved in host antibacterial and antiviral responses, thus enriching the immune regulatory network of the interaction between host and pathogen in lower vertebrates.
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spelling doaj.art-984744c82064488fb3b1c0e3674f4f882022-12-21T23:02:19ZengFrontiers Media S.A.Frontiers in Immunology1664-32242021-02-011210.3389/fimmu.2021.647202647202MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6Wenya Gao0Renjie Chang1Yuena Sun2Yuena Sun3Yuena Sun4Tianjun Xu5Tianjun Xu6Tianjun Xu7Tianjun Xu8Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, ChinaLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, ChinaLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, ChinaLaboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, Shanghai, ChinaLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, ChinaLaboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, Shanghai, ChinaNational Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, ChinaThe innate immune organs and cells detect the invasion of pathogenic microorganisms, which trigger the innate immune response. A proper immune response can protect the organisms from pathogen invasion. However, excessive immunity can destroy immune homeostasis, leading to uncontrolled inflammation or pathogen transmission. Evidence shows that the miRNA-mediated immune regulatory network in mammals has had a significant impact, but the antibacterial and antiviral responses involved in miRNAs need to be further studied in lower vertebrates. Here, we report that miR-2187 as a negative regulator playing a critical role in the antiviral and antibacterial response of miiuy croaker. We find that pathogens such as Vibrio anguillarum and Siniperca chuatsi rhabdovirus (SCRV) can up-regulate the expression of miR-2187. Elevated miR-2187 is capable of reducing the production of inflammatory factors and antiviral genes by targeting TRAF6, thereby avoiding excessive inflammatory response. Furthermore, we proved that miR-2187 modulates innate immunity through TRAF6-mediated NF-κB and IRF3 signaling pathways. The above results indicate that miR-2187 acts as an immune inhibitor involved in host antibacterial and antiviral responses, thus enriching the immune regulatory network of the interaction between host and pathogen in lower vertebrates.https://www.frontiersin.org/articles/10.3389/fimmu.2021.647202/fullmiR-2187TRAF6immune responsenegative regulationfish
spellingShingle Wenya Gao
Renjie Chang
Yuena Sun
Yuena Sun
Yuena Sun
Tianjun Xu
Tianjun Xu
Tianjun Xu
Tianjun Xu
MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
Frontiers in Immunology
miR-2187
TRAF6
immune response
negative regulation
fish
title MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
title_full MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
title_fullStr MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
title_full_unstemmed MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
title_short MicroRNA-2187 Modulates the NF-κB and IRF3 Pathway in Teleost Fish by Targeting TRAF6
title_sort microrna 2187 modulates the nf κb and irf3 pathway in teleost fish by targeting traf6
topic miR-2187
TRAF6
immune response
negative regulation
fish
url https://www.frontiersin.org/articles/10.3389/fimmu.2021.647202/full
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