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Yao Y, Li S, Zhu Y, Xu Y, Hao S, Guo S, Feng WH. miR-204 suppresses porcine reproductive and respiratory syndrome virus (PRRSV) replication via inhibiting LC3B-mediated autophagy. Virol Sin 2023; 38:690-698. [PMID: 37454810 PMCID: PMC10590697 DOI: 10.1016/j.virs.2023.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) caused by PRRS virus (PRRSV) has been regarded as a persistent challenge for the swine farms worldwide. microRNAs (miRNAs) play key roles in regulating almost every important biological process, including virus-host interaction. In this study, we found that miR-204 was highly expressed in cells that were not permissive to PRRSV infection compared with cells susceptible to PRRSV infection. Subsequently, we demonstrated that overexpression of miR-204 significantly inhibited PRRSV replication in porcine alveolar macrophages (PAMs). Through bioinformatic analysis, we found that there existed a potential binding site of miR-204 on the 3'UTR of microtubule associated protein 1 light chain 3B (MAP1LC3B, LC3B), a hallmark of autophagy. Applying experiments including luciferase reporter assay and UV cross-linking and immunoprecipitation (CLIP) assay, we demonstrated that miR-204 directly targeted LC3B, thereby downregulating autophagy. Meanwhile, we investigated the interplay between autophagy and PRRSV replication in PAMs, confirming that PRRSV infection induces autophagy, which in turn facilitates viral replication. Overall, we verify that miR-204 suppresses PRRSV replication via inhibiting LC3B-mediated autophagy in PAMs. These findings will provide a novel potential approach for us to develop antiviral therapeutic agents and controlling measures for future PRRSV outbreaks.
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Affiliation(s)
- Yao Yao
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Sihan Li
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yingqi Zhu
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yangyang Xu
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Siyuan Hao
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuyuan Guo
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Wen-Hai Feng
- State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, Ministry of Agriculture Key Laboratory of Soil Microbiology, and Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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Signaling Lymphocytic Activation Molecule Family Member 1 Inhibits Porcine Reproductive and Respiratory Syndrome Virus Replication. Animals (Basel) 2022; 12:ani12243542. [PMID: 36552462 PMCID: PMC9774311 DOI: 10.3390/ani12243542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
The porcine reproductive and respiratory syndrome virus (PRRSV) causes a highly contagious disease in domestic swine. Signaling lymphocytic activation molecule family member 1 (SLAMF1) is a costimulatory factor that is involved in innate immunity, inflammation, and infection. Here, we demonstrate that overexpression of the SLAMF1 gene inhibited PRRSV replication significantly and reduced the levels of key signaling pathways, including MyD88, RIG-I, TLR2, TRIF, and inflammatory factors IL-6, IL-1β, IL-8, TNF-β, TNF-α, and IFN-α in vitro. However, the knockdown of the SLAMF1 gene could enhance replication of the PRRSV and the levels of key signaling pathways and inflammatory factors. Overall, our results identify a new, to our knowledge, antagonist of the PRRSV, as well as a novel antagonistic mechanism evolved by inhibiting innate immunity and inflammation, providing a new reference and direction for PRRSV disease resistance breeding.
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Li J, Sang ER, Adeyemi O, Miller LC, Sang Y. Comparative transcriptomics reveals small RNA composition and differential microRNA responses underlying interferon-mediated antiviral regulation in porcine alveolar macrophages. Front Immunol 2022; 13:1016268. [PMID: 36389683 PMCID: PMC9651005 DOI: 10.3389/fimmu.2022.1016268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/03/2022] [Indexed: 09/12/2023] Open
Abstract
Previous studies have shown that interferon-mediated antiviral activity is subtype-dependent. Using a whole transcriptome procedure, we aimed to characterize the small RNA transcriptome (sRNA-Seq) and specifically the differential microRNA (miRNA) responses in porcine alveolar macrophages (PAMs) upon antiviral activation during viral infection and interferon (IFN) stimulation. Data showed that near 90% of the qualified reads of sRNA were miRNAs, and about 10% of the other sRNAs included rRNA, snoRNA, snRNA, and tRNA in order of enrichment. As the majority of sRNA (>98%) were commonly detected in all PAM samples under different treatments, about 2% sRNA were differentially expressed between the different antiviral treatments. Focusing on miRNA, 386 miRNA were profiled, including 331 known and 55 novel miRNA sequences, of which most were ascribed to miRNA families conserved among vertebrates, particularly mammalian species. Of the miRNA profiles comparably generated across the different treatments, in general, significantly differentially expressed miRNA (SEM) demonstrated that: (1) the wild-type and vaccine strains of a porcine arterivirus (a.k.a., PRRSV) induced nearly reversed patterns of up- or down-regulated SEMs; (2) similar SEM patterns were found among the treatments by the vaccine strain and antiviral IFN-α1/-ω5 subtypes; and (3) the weak antiviral IFN-ω1, however, remarked a suppressive SEM pattern as to SEMs upregulated in the antiviral treatments by the vaccine and IFN-α1/-ω5 subtypes. Further articulation identified SEMs commonly or uniquely expressed in different treatments, and experimentally validated that some SEMs including miR-10b and particularly miR-9-1 acted significantly in regulation of differential antiviral reactions stimulated by different IFN subtypes. Therefore, this study provides a general picture of porcine sRNA composition and pinpoints key SEMs underlying antiviral regulation in PAMs correlated to a typical respiratory RNA virus in pigs.
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Affiliation(s)
- Jiuyi Li
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, United States
| | - Eric R. Sang
- USDA, Agricultural Research Service, National Animal Disease Center, Virus and Prion Research Unit, Ames, IA, United States
| | - Oluwaseun Adeyemi
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, United States
| | - Laura C. Miller
- USDA, Agricultural Research Service, National Animal Disease Center, Virus and Prion Research Unit, Ames, IA, United States
| | - Yongming Sang
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, United States
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Zhang X, Guo C. Recent advances in inhibition of porcine reproductive and respiratory syndrome virus through targeting CD163. Front Microbiol 2022; 13:1006464. [PMID: 36187992 PMCID: PMC9522899 DOI: 10.3389/fmicb.2022.1006464] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) has plagued the pig industry for more than 30 years and causes great economic losses. At present different commercial vaccines are available but limited tools. Until now at least six potential host factors are identified as the key receptors for PRRSV infection. Among them, CD163 molecule is the most important and critical in PRRSV life cycle responsible for mediating virus uncoating and genome release. It determines the susceptibility of target cells to the virus. Several PRRSV non-permissive cells (such as PK-15, 3D4/21, and BHK-21) are demonstrated to become completely susceptible to PRRSV infection in the presence of expression of porcine CD163 protein. Therefore, CD163 has become the target for the design of novel antiviral molecules disrupting the interaction between CD163 and viral glycoproteins, or the breeding of gene-modified animals against PRRSV infection. In this review, we comprehensively summarize the recent progress in inhibition of PRRSV replication via targeting CD163 receptor. In addition, whether there are other potential molecules interacting with CD163 in the process of uncoating of virus life cycle is also discussed.
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Affiliation(s)
- Xiaoxiao Zhang
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong, China
| | - Chunhe Guo
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong, China
- *Correspondence: Chunhe Guo,
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miR-142-3p Suppresses Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) Infection by Directly Targeting Rac1. Vet Microbiol 2022; 269:109434. [DOI: 10.1016/j.vetmic.2022.109434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/23/2022] [Accepted: 04/10/2022] [Indexed: 11/20/2022]
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