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Su CM, Rowland RRR, Yoo D. Recent Advances in PRRS Virus Receptors and the Targeting of Receptor-Ligand for Control. Vaccines (Basel) 2021; 9:vaccines9040354. [PMID: 33916997 PMCID: PMC8067724 DOI: 10.3390/vaccines9040354] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/02/2021] [Accepted: 04/05/2021] [Indexed: 12/21/2022] Open
Abstract
Cellular receptors play a critical role in viral infection. At least seven cellular molecules have been identified as putative viral entry mediators for porcine reproductive and respiratory syndrome virus (PRRSV). Accumulating data indicate that among these candidates, CD163, a cysteine-rich scavenger receptor on macrophages, is the major receptor for PRRSV. This review discusses the recent advances and understanding of the entry of PRRSV into cells, viral pathogenesis in CD163 gene-edited swine, and CD163 as a potential target of receptor–ligand for the control of PRRS.
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Zhang K, Li H, Dong S, Liu Y, Wang D, Liu H, Su F, Ge L, Jiang Y. Establishment and evaluation of a PRRSV-sensitive porcine endometrial epithelial cell line by transfecting SV40 large T antigen. BMC Vet Res 2019; 15:299. [PMID: 31426793 PMCID: PMC6700808 DOI: 10.1186/s12917-019-2051-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 08/14/2019] [Indexed: 11/10/2022] Open
Abstract
Background PRRSV is an infectious illness causing lung injury and abortion in sows. Cells apoptosis in the interface between the endometrium and fetal placenta is a crucial factor causing abortion. Previous study confirmed PRRSV could cause apoptosis of macrophages but rarely produced an obvious change in porcine endometrial epithelial cells (PECs). Recently, PRRSV-induced abortion was attributed to fetal placental and endometrium epithelial cells (Sn+ and CD163+) apoptosis. However, the mechanism of abortion is still unrevealed because of the limit of porcine endometrium epithelial cells (PEC). The aim of this study was to establish a stable immortalized PECs lines and use it to reveal the abortion mechanism. Results In this study, highly purified primary PECs were harvested through differential digestion, and their characteristics were confirmed by CK18, ERɑ and PR staining. Cells were then immortalized by transfecting a lentiviral vector that expressed SV40 large T antigen. PECs lines were obtained after puromycin screening. Proliferation of cell line was evaluated by cell growth curve and cell cycle assays. Cell lines exhibited faster proliferation capacity than primary cells. Biological characteristics of cell line were assessed by Western blot, karyotype analysis and staining, which confirmed that the cell line retained the endometrium characteristics. Finally, PRRSV sensitivity was assessed; expression of Sn and CD163 indicated that primary PECs and cell lines were all potentially sensitive to PRRSV. PRRSV infection tests showed an obvious increase in apoptotic rate in the infected PEC cell line, which suggested its susceptibility. Conclusion The newly constructed cell line is a useful tool for studying the mechanism of abortion caused by PRRSV.
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Affiliation(s)
- Kang Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China
| | - Houshen Li
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China
| | - Shasha Dong
- Department of Cardiology, Shandong First Medical University and Shandong Academy of Medical Science, Taian, 271000, China
| | - Ying Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China
| | - Dong Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China
| | - Haichang Liu
- Ningbo Defangyuan Biotech Co. Ltd., No.166 of Xinghaibei Road, County of Ninghai, Ningbo, Zhejiang, China
| | - Feng Su
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China.
| | - Lijiang Ge
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China.
| | - Yunliang Jiang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, No. 61 Daizong Street, Taian, Shandong, China.
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Tonsil conventional dendritic cells are not infected by porcine reproductive and respiratory syndrome virus. Virology 2019; 529:65-72. [PMID: 30665099 DOI: 10.1016/j.virol.2019.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/24/2022]
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) infects monocyte-derived DCs, and previous reports have shown that PRRSV does not infect conventional DCs (cDCs) in vitro, but the effects on cDCs from lymphoid tissues are unknown. This study analyzed the response and susceptibility of tonsil DEC205+cDCs from infected pigs. We confirmed the phenotype and lineage of bona fide tonsil cDCs with the mRNA expression of FLT3+ and the phenotype MHCII+CADM1highDEC205+ (DEC205+cDCs). These cells were not infected by PRRSV, whereas CD163+ tonsil cells were infected. The numbers of tonsil cDCs and CD163+ cells were not affected by PRRSV, in contrast to the reduction in alveolar macrophage numbers. DEC205+cDCs exhibited an increase in the expression of IL-12 at 5 days postinfection, suggesting a proinflammatory response by these cells to the virus. In summary, this study confirms that, in vitro and in vivo, cDCs are not susceptible to PRRSV but can respond against it.
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Shi P, Zhang L, Wang J, Lu D, Li Y, Ren J, Shen M, Zhang L, Huang J. Porcine FcεRI Mediates Porcine Reproductive and Respiratory Syndrome Virus Multiplication and Regulates the Inflammatory Reaction. Virol Sin 2018; 33:249-260. [PMID: 29761267 PMCID: PMC6178556 DOI: 10.1007/s12250-018-0032-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 04/02/2018] [Indexed: 12/11/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) shows characteristic antibody-dependent enhancement (ADE) of infection and causes porcine systemic inflammation, which is similar to a type I allergic reaction; however, the role of porcine FcεRI in ADE is still unclear. In this study, the expression of different Fc receptors (FcRs) on macrophages was investigated in a PRRSV 3D4/21 cell infection model in the presence or absence of PRRSV antibody. The transcription level of FcγII and FcεRI was significantly up-regulated under PRRSV-antibody complex infection. Internalization and proliferation of PRRSV were promoted by the ADE mechanism when FcεRI was expressed in permissive 3D4/21 cells and the non-permissive cell line HEK 293T. Transcriptome sequencing data showed that the expression levels of AKT, ERK and other signal molecules in the anti-inflammatory pathway were significantly increased, especially in the cells infected with the PRRSV-antibody immune complex. Inflammatory regulatory molecules such as PLA2G6, LOX, TRPM8 and TRPM4 were significantly up-regulated following PRRSV infection but significantly down-regulated in the cells infected with the PRRSV-antibody immune complex. Our results demonstrated that FcεRI could be involved in PRRSV ADE, the antigen presenting process and regulation of the inflammatory response during PRRSV infection, which provides new insights into PRRSV infection mediated by FcεRI and the PRRSV-antibody immune complex.
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Affiliation(s)
- Peidian Shi
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Lilin Zhang
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Jiashun Wang
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Dong Lu
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Yi Li
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Jie Ren
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Menglu Shen
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Lei Zhang
- School of Life Sciences, Tianjin University, 300072, Tianjin, China.
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, 300072, Tianjin, China.
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Fernández-Caballero T, Álvarez B, Alonso F, Revilla C, Martínez-Lobo J, Prieto C, Ezquerra Á, Domínguez J. Interaction of PRRS virus with bone marrow monocyte subsets. Vet Microbiol 2018; 219:123-127. [PMID: 29778184 DOI: 10.1016/j.vetmic.2018.04.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/16/2018] [Accepted: 04/16/2018] [Indexed: 11/29/2022]
Abstract
PRRSV can replicate for months in lymphoid organs leading to persistent host infections. Porcine bone marrow comprises two major monocyte subsets, one of which expresses CD163 and CD169, two receptors involved in the entry of PRRSV in macrophages. In this study, we investigate the permissiveness of these subsets to PRRSV infection. PRRSV replicates efficiently in BM CD163+ monocytes reaching titers similar to those obtained in alveolar macrophages, but with a delayed kinetics. Infection of BM CD163- monocytes was variable and yielded lower titers. This may be related with the capacity of BM CD163- monocytes to differentiate into CD163+ CD169+ cells after culture in presence of M-CSF. Both subsets secreted IL-8 in response to virus but CD163+ cells tended to produce higher amounts. The infection of BM monocytes by PRRSV may contribute to persistence of the virus in this compartment and to hematological disorders found in infected animals such as the reduction in the number of peripheral blood monocytes.
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Affiliation(s)
- Teresa Fernández-Caballero
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Belén Álvarez
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Fernando Alonso
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Concepción Revilla
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Javier Martínez-Lobo
- Dpto. Sanidad Animal. Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), 28040, Madrid, Spain
| | - Cinta Prieto
- Dpto. Sanidad Animal. Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), 28040, Madrid, Spain
| | - Ángel Ezquerra
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Javier Domínguez
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain.
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Xie J, Christiaens I, Yang B, Breedam WV, Cui T, Nauwynck HJ. Molecular cloning of porcine Siglec-3, Siglec-5 and Siglec-10, and identification of Siglec-10 as an alternative receptor for porcine reproductive and respiratory syndrome virus (PRRSV). J Gen Virol 2017; 98:2030-2042. [PMID: 28742001 PMCID: PMC5656783 DOI: 10.1099/jgv.0.000859] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
In recent years, several entry mediators have been characterized for porcine
reproductive and respiratory syndrome virus (PRRSV). Porcine sialoadhesin [pSn,
also known as sialic acid-binding immunoglobulin-type lectin (Siglec-1)] and
porcine CD163 (pCD163) have been identified as the most important host entry
mediators that can fully coordinate PRRSV infection into macrophages. However,
recent isolates have not only shown a tropism for sialoadhesin-positive cells,
but also for sialoadhesin-negative cells. This observation might be partly
explained by the existence of additional receptors that can support PRRSV
binding and entry. In the search for new receptors, recently identified porcine
Siglecs (Siglec-3, Siglec-5 and Siglec-10), members of the same family as
sialoadhesin, were cloned and characterized. Only Siglec-10 was able to
significantly improve PRRSV infection and production in a CD163-transfected cell
line. Compared with sialoadhesin, Siglec-10 performed equally effectively as a
receptor for PRRSV type 2 strain MN-184, but it was less capable of supporting
infection with PRRSV type 1 strain LV (Lelystad virus). Siglec-10 was
demonstrated to be involved in the endocytosis of PRRSV, confirming the
important role of Siglec-10 in the entry process of PRRSV. In conclusion, it can
be stated that PRRSV may use several Siglecs to enter macrophages, which may
explain the strain differences in the pathogenesis.
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Affiliation(s)
- Jiexiong Xie
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Isaura Christiaens
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Bo Yang
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Wander Van Breedam
- Unit for Medical Biotechnology, Medical Biotechnology Center, VIB, Technologiepark 927, B-9052 Ghent, Belgium
| | - Tingting Cui
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Hans J Nauwynck
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
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Advanced Role of Neutrophils in Common Respiratory Diseases. J Immunol Res 2017; 2017:6710278. [PMID: 28589151 PMCID: PMC5447318 DOI: 10.1155/2017/6710278] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/22/2017] [Accepted: 04/16/2017] [Indexed: 12/18/2022] Open
Abstract
Respiratory diseases, always being a threat towards the health of people all over the world, are most tightly associated with immune system. Neutrophils serve as an important component of immune defense barrier linking innate and adaptive immunity. They participate in the clearance of exogenous pathogens and endogenous cell debris and play an essential role in the pathogenesis of many respiratory diseases. However, the pathological mechanism of neutrophils remains complex and obscure. The traditional roles of neutrophils in severe asthma, chronic obstructive pulmonary diseases (COPD), pneumonia, lung cancer, pulmonary fibrosis, bronchitis, and bronchiolitis had already been reviewed. With the development of scientific research, the involvement of neutrophils in respiratory diseases is being brought to light with emerging data on neutrophil subsets, trafficking, and cell death mechanism (e.g., NETosis, apoptosis) in diseases. We reviewed all these recent studies here to provide you with the latest advances about the role of neutrophils in respiratory diseases.
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