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MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost
Upon recognition of bacterial or viral components by Toll-like receptors (TLRs), cells could be activated to induce a series of reactions to produce inflammatory cytokines, type I interferon (IFN), and IFN stimulating genes (ISG). MicroRNAs (miRNAs) are an important regulatory molecules that are wid...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695722/ https://www.ncbi.nlm.nih.gov/pubmed/34956174 http://dx.doi.org/10.3389/fimmu.2021.734520 |
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author | Sun, Yuena Zhang, Lei Hong, Ling Zheng, Weiwei Cui, Junxia Liu, Xuezhu Xu, Tianjun |
author_facet | Sun, Yuena Zhang, Lei Hong, Ling Zheng, Weiwei Cui, Junxia Liu, Xuezhu Xu, Tianjun |
author_sort | Sun, Yuena |
collection | PubMed |
description | Upon recognition of bacterial or viral components by Toll-like receptors (TLRs), cells could be activated to induce a series of reactions to produce inflammatory cytokines, type I interferon (IFN), and IFN stimulating genes (ISG). MicroRNAs (miRNAs) are an important regulatory molecules that are widely involved in the regulatory networks of mammalian inflammation and immune responses; however, in lower vertebrates, the regulatory network of miRNA-mediated immune responses is poorly understood. Here, we report two miRNAs form Miichthys miiuy, namely, miR-181b-2 and miR-21-1, that play a negative role in host antiviral and antibacterial immunity. We found that miR-181b-2 and miR-21-1 are abundantly expressed in gram-negative bacteria, as well as RNA rhabdovirus infection. Inducible miR-181b-2 and miR-21-1 suppress the production of inflammatory cytokines and type I IFN by targeting TRIF, thereby avoiding excessive inflammation. We further revealed that miR-181b-2 and miR-21-1 modulate antibacterial and antiviral immunity through the TRIF-mediated NF-κB and IRF3 signaling pathways. The overall results indicate that miR-181b-2 and miR-21-1 act as negative feedback regulators and participate in host antibacterial and antiviral immune responses; this finding could provide information for a deeper understanding of the resistance of lower vertebrates to the invasion of pathogens and to avoidance of excessive immunity. |
format | Online Article Text |
id | pubmed-8695722 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-86957222021-12-24 MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost Sun, Yuena Zhang, Lei Hong, Ling Zheng, Weiwei Cui, Junxia Liu, Xuezhu Xu, Tianjun Front Immunol Immunology Upon recognition of bacterial or viral components by Toll-like receptors (TLRs), cells could be activated to induce a series of reactions to produce inflammatory cytokines, type I interferon (IFN), and IFN stimulating genes (ISG). MicroRNAs (miRNAs) are an important regulatory molecules that are widely involved in the regulatory networks of mammalian inflammation and immune responses; however, in lower vertebrates, the regulatory network of miRNA-mediated immune responses is poorly understood. Here, we report two miRNAs form Miichthys miiuy, namely, miR-181b-2 and miR-21-1, that play a negative role in host antiviral and antibacterial immunity. We found that miR-181b-2 and miR-21-1 are abundantly expressed in gram-negative bacteria, as well as RNA rhabdovirus infection. Inducible miR-181b-2 and miR-21-1 suppress the production of inflammatory cytokines and type I IFN by targeting TRIF, thereby avoiding excessive inflammation. We further revealed that miR-181b-2 and miR-21-1 modulate antibacterial and antiviral immunity through the TRIF-mediated NF-κB and IRF3 signaling pathways. The overall results indicate that miR-181b-2 and miR-21-1 act as negative feedback regulators and participate in host antibacterial and antiviral immune responses; this finding could provide information for a deeper understanding of the resistance of lower vertebrates to the invasion of pathogens and to avoidance of excessive immunity. Frontiers Media S.A. 2021-12-09 /pmc/articles/PMC8695722/ /pubmed/34956174 http://dx.doi.org/10.3389/fimmu.2021.734520 Text en Copyright © 2021 Sun, Zhang, Hong, Zheng, Cui, Liu and Xu https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Immunology Sun, Yuena Zhang, Lei Hong, Ling Zheng, Weiwei Cui, Junxia Liu, Xuezhu Xu, Tianjun MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title | MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title_full | MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title_fullStr | MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title_full_unstemmed | MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title_short | MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost |
title_sort | microrna-181b-2 and microrna-21-1 negatively regulate nf-κb and irf3-mediated innate immune responses via targeting trif in teleost |
topic | Immunology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695722/ https://www.ncbi.nlm.nih.gov/pubmed/34956174 http://dx.doi.org/10.3389/fimmu.2021.734520 |
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