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Wu Z, Fan H, Jin J, Gao S, Huang R, Wu S, Bao W. Insight into mechanisms of pig lncRNA FUT3-AS1 regulating E. coli F18-bacterial diarrhea. PLoS Pathog 2022; 18:e1010584. [PMID: 35696408 PMCID: PMC9191744 DOI: 10.1371/journal.ppat.1010584] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/10/2022] [Indexed: 12/21/2022] Open
Abstract
Escherichia coli F18 is a common conditional pathogen that is associated with a variety of infections in humans and animals. LncRNAs have emerged as critical players in pathogen infection, but their role in the resistance of the host to bacterial diarrhea remains unknown. Here, we used piglets as animal model and identified an antisense lncRNA termed FUT3-AS1 as a host regulator related to E. coli F18 infection by RNA sequencing. Downregulation of FUT3-AS1 expression contributed to the enhancement of E. coli F18 resistance in IPEC-J2 cells. FUT3-AS1 knockdown reduced FUT3 expression via decreasing the H4K16ac level of FUT3 promoter. Besides, the FUT3-AS1/miR-212 axis could act as a competing endogenous RNA to regulate FUT3 expression. Functional analysis demonstrated that target FUT3 plays a vital role in the resistance of IPEC-J2 cells to E. coli F18 invasion. A Fut3-knockout mice model was established and Fut3-knockout mice obviously improved the ability of resistance to bacterial diarrhea. Interestingly, FUT3 could enhance E. coli F18 susceptibility by activating glycosphingolipid biosynthesis and toll-like receptor signaling which are related to receptor formation and immune response, respectively. In summary, we have identified a novel biomarker FUT3-AS1 that modulates E. coli F18 susceptibility via histone H4 modifications or miR-212/FUT3 axis, which will provide theoretical guidance to develop novel strategies for combating bacterial diarrhea in piglets.
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Affiliation(s)
- Zhengchang Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Hairui Fan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Jian Jin
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Song Gao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Ruihua Huang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, Jiangsu, P. R. China
| | - Shenglong Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Wenbin Bao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
- * E-mail:
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Xu R, Yu SS, Yao RR, Tang RC, Liang JW, Pang X, Zhang J. Interferon-Inducible LINC02605 Promotes Antiviral Innate Responses by Strengthening IRF3 Nuclear Translocation. Front Immunol 2021; 12:755512. [PMID: 34804040 PMCID: PMC8602795 DOI: 10.3389/fimmu.2021.755512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/11/2021] [Indexed: 11/26/2022] Open
Abstract
Non-coding RNAs represent a class of important regulators in immune response. Previously, LINC02605 was identified as a candidate regulator in innate immune response by lncRNA microarray assays. In this study, we systematically analyzed the functions and the acting mechanisms of LINC02605 in antiviral innate immune response. LINC02605 was up-regulated by RNA virus, DNA virus, and type I IFNs in NF-κB and Jak-stat dependent manner. Overexpression of LINC02605 promotes RNA virus-induced type I interferon production and inhibited viral replication. Consistently, knockdown of LINC02605 resulted in reduced antiviral immune response and increased viral replication. Mechanistically, LINC02605 released the inhibition of hsa-miR-107 on the expression of phosphatase and tensin homolog (PTEN). By microRNA mimics and inhibitors, hsa-miR-107 was demonstrated to not only inhibit PTEN’s expression but also negatively regulate the antiviral immune response. Knockdown of LINC02605 led to the reduction of PTEN expression both in mRNA and protein levels. Overexpression of LINC02605 had an opposite impact. Moreover, LINC02605 attenuated the serine 97 phosphorylation level of interferon regulatory factor 3 (IRF3) by promoting PTEN expression. Nucleoplasmic fragmentation assay showed that knocking down LINC02605 inhibited the nuclear translocation of IRF3, rendering the host cells more susceptible to viral invasion, while overexpression showed opposite effects. Therefore, LINC02605 is an induced lncRNA by viral infection and plays a positive feedback in antiviral immune response through modulating the nuclear translocation of IRF3.
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Affiliation(s)
- Rui Xu
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Shuang-Shuang Yu
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Ran-Ran Yao
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Rong-Chun Tang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Jia-Wei Liang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Xuewen Pang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
| | - Jun Zhang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing, China
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Kesheh MM, Mahmoudvand S, Shokri S. Long noncoding RNAs in respiratory viruses: A review. Rev Med Virol 2021; 32:e2275. [PMID: 34252234 PMCID: PMC8420315 DOI: 10.1002/rmv.2275] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 06/26/2021] [Accepted: 06/29/2021] [Indexed: 12/27/2022]
Abstract
Long noncoding RNAs (lncRNAs) are defined as RNA molecules longer than 200 nucleotides that can regulate gene expression at the transcriptional or post‐transcriptional levels. Both human lncRNAs and lncRNAs encoded by viruses can modulate the expression of host genes which are critical for viral replication, latency, activation of signalling pathways, cytokine and chemokine production, RNAi processing, expression of interferons (IFNs) and interferon‐stimulated genes (ISGs). Studies on lncRNAs as key regulators of host‐virus interactions may give new insights into therapeutic strategies for the treatment of related diseases. This current review focuses on the role of lncRNAs, and their interactions with respiratory viruses including influenza A virus (IAV), respiratory syncytial virus (RSV) and severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2).
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Affiliation(s)
- Mina Mobini Kesheh
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shahab Mahmoudvand
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Somayeh Shokri
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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