1
|
Zhang M, Xu W, Yang N, Li Z, Zhou S, Liu X, Wang J, Li H. PCV2 Induced Endothelial Derived IL-8 Affects MoDCs Maturation Mainly via NF-κB Signaling Pathway. Viruses 2024; 16:646. [PMID: 38675986 PMCID: PMC11053600 DOI: 10.3390/v16040646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Porcine circovirus type 2 (PCV2) infection can cause immunosuppressive diseases in pigs. Vascular endothelial cells (VECs), as the target cells for PCV2, play an important role in the immune response and inflammatory regulation. Endothelial IL-8, which is produced by porcine hip artery endothelial cells (PIECs) infected with PCV2, can inhibit the maturation of monocyte-derived dendritic cells (MoDCs). Here, we established a co-culture system of MoDCs and different groups of PIECs to further investigate the PCV2-induced endothelial IL-8 signaling pathway that drives the inhibition of MoDC maturation. The differentially expressed genes related to MoDC maturation were mainly enriched in the NF-κB and JAK2-STAT3 signaling pathways. Both the NF-κB related factor RELA and JAK2-STAT3 signaling pathway related factors (IL2RA, JAK, STAT2, STAT5, IL23A, IL7, etc.) decreased significantly in the IL-8 up-regulated group, and increased significantly in the down-regulated group. The expression of NF-κB p65 in the IL-8 up-regulated group was reduced significantly, and the expression of IκBα was increased significantly. Nuclear translocation of NF-κB p65 was inhibited, while the nuclear translocation of p-STAT3 was increased in MoDCs in the PCV2-induced endothelial IL-8 group. The results of treatment with NF-κB signaling pathway inhibitors showed that the maturation of MoDCs was inhibited and the expression of IL-12 and GM-CSF at mRNA level were lower. Inhibition of the JAK2-STAT3 signaling pathway had no significant effect on maturation, and the expression of IL-12 and GM-CSF at mRNA level produced no significant change. In summary, the NF-κB signaling pathway is the main signaling pathway of MoDC maturation, and is inhibited by the PCV2-induced up-regulation of endothelial-derived IL-8.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Jianfang Wang
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing 102206, China; (M.Z.); (W.X.); (N.Y.); (Z.L.); (S.Z.); (X.L.)
| | - Huanrong Li
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing 102206, China; (M.Z.); (W.X.); (N.Y.); (Z.L.); (S.Z.); (X.L.)
| |
Collapse
|
2
|
Shi F, Li Q, Liu S, Liu F, Wang J, Cui D, Hou X, Zhou S, Zhang Y, Li H. Porcine circovirus type 2 upregulates endothelial-derived IL-8 production in porcine iliac artery endothelial cells via the RIG-I/MDA-5/MAVS/JNK signaling pathway. BMC Vet Res 2020; 16:265. [PMID: 32727484 PMCID: PMC7392700 DOI: 10.1186/s12917-020-02486-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 07/22/2020] [Indexed: 12/11/2022] Open
Abstract
Background Dysfunction of endothelial cells and vascular system is one of the most important pathological changes of porcine circovirus disease (PCVD) caused by porcine circovirus type 2 (PCV2). PCV2-infected endothelial cells can upregulate the production of endothelial-derived IL-8, which can inhibit the maturation of dendritic cells. Endothelial-derived IL-8 has different structural and biological characteristics compared with monocyte-derived IL-8. However, the mechanism of endothelial-derived IL-8 production is still unclear. Results Key molecules of RIG-I-like signaling pathway RIG-I, MDA-5, MAVS and a key molecule of JNK signaling pathway c-Jun in PCV2-infected porcine iliac artery endothelial cells (PIECs) were upregulated significantly detected with quantitative PCR, Western blot and fluorescence confocal microscopy, while no significant changes were found in NF-κB signaling pathway. Meanwhile, the expression of endothelial-derived IL-8 was downregulated after RIG-I, MDA-5, or MAVS genes in PIECs were knocked down and PIECs were treated by JNK inhibitor. Conclusions PCV2 can activate RIG-I/MDA-5/MAVS/JNK signaling pathway to induce the production of endothelial-derived IL-8 in PIECs, which provides an insight into the further study of endothelial dysfunction and vascular system disorder caused by PCV2.
Collapse
Affiliation(s)
- Fengyang Shi
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Qiuming Li
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Shiyu Liu
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Fengying Liu
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Jianfang Wang
- Beijing Key Laboratory of TCVM, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Defeng Cui
- Beijing Key Laboratory of TCVM, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Xiaolin Hou
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Shuanghai Zhou
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China
| | - Yonghong Zhang
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China.
| | - Huanrong Li
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Beijing, 102206, Changping District, China.
| |
Collapse
|
3
|
Liu S, Li Q, Qiao J, Wang J, Cui D, Gu K, Zhou S, Li H. Endothelial IL-8 induced by porcine circovirus type 2 affects dendritic cell maturation and antigen-presenting function. Virol J 2019; 16:154. [PMID: 31831027 PMCID: PMC6909562 DOI: 10.1186/s12985-019-1256-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/21/2019] [Indexed: 02/04/2023] Open
Abstract
Background Porcine circovirus (PCV) disease caused by PCV type 2 (PCV2) is mainly attributed to immunosuppression and immune damage. PCV2 can infect vascular endothelial cells and induce high expression of endothelial IL-8. Dendritic cells (DCs), as professional antigen-presenting cells, can not only present antigens but also activate naïve T-cells, causing an immune response. Methods To demonstrate whether endothelial IL-8 is the main factor inhibiting the maturation and related functions of dendritic cells during PCV2 infection, monocyte-derived DCs (MoDCs) and porcine iliac artery endothelial cells (PIECs) processed by different methods were co-cultured in two ways. Flow cytometry, molecular probe labeling, fluorescence quantitative PCR, and the MTS assay were used to detect the changes in related functions and molecules of MoDCs. Results Compared to those in the PIEC-DC group, the endothelial IL-8 upregulation co-culture group showed significantly lower double-positive rates for CD80/86 and MHC-II of MoDCs and significantly increased endocytosis of MoDCs. Meanwhile, the adhesion rate and average fluorescence intensity of MoDCs were significantly downregulated in migration and adhesion experiments. Furthermore, the MHC-I and LAMP7 mRNA levels in MoDCs and the proliferation of MoDC-stimulated T-cells were markedly reduced. However, the changes in MoDCs of the endothelial IL-8 downregulation co-culture group were the opposite. Conclusions PCV2-induced endothelial IL-8 reduces the adhesion and migration ability of MoDCs, resulting in a decreased maturation rate of MoDCs, and further inhibits antigen presentation by DCs. These results may explain the immunosuppressive mechanism of PCV2 from the perspective of the interaction between endothelial cells and DCs in vitro.
Collapse
Affiliation(s)
- Shiyu Liu
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Qiuming Li
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Jinzeng Qiao
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Jianfang Wang
- Beijing Key Laboratory of TCVM, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Defeng Cui
- Beijing Key Laboratory of TCVM, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Kewei Gu
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China
| | - Shuanghai Zhou
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China.
| | - Huanrong Li
- College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China.
| |
Collapse
|
4
|
Porcine Dendritic Cells and Viruses: An Update. Viruses 2019; 11:v11050445. [PMID: 31100880 PMCID: PMC6563313 DOI: 10.3390/v11050445] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 12/13/2022] Open
Abstract
Several viral infections of swine are responsible for major economic losses and represent a threat to the swine industry worldwide. New tools are needed to prevent and control endemic, emerging, and re-emerging viral diseases. Dendritic cells (DC) play a central role in linking the innate and adaptive arms of the immune system, so knowledge regarding their interaction with pathogens is necessary to understand the mechanisms underlying diseases pathogenesis and protection. In the first part of this review, we provide an update on the heterogeneous cell subsets that comprise the porcine DC family. In the second part of this review, we provide an overview of how three viruses, affecting pork production at a global level, African swine fever virus (ASFV), classical swine fever virus (CSFV), and porcine circovirus 2 (PCV2), modulate DC function.
Collapse
|
5
|
Qi W, Zhu R, Bao C, Xiao J, Liu B, Sun M, Feng X, Gu J, Li Y, Lei L. Porcine circovirus type 2 promotes Actinobacillus pleuropneumoniae survival during coinfection of porcine alveolar macrophages by inhibiting ROS production. Vet Microbiol 2019; 233:93-101. [PMID: 31176418 DOI: 10.1016/j.vetmic.2019.04.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 12/14/2022]
Abstract
Actinobacillus pleuropneumoniae (APP) and porcine circovirus type 2 (PCV2) are both important pathogens of the porcine respiratory disease complex (PRDC), which results in significant worldwide economic losses. Recently, PCV2 and APP coinfection has been described in the worldwide pork industry, and represents an extremely complex situation in veterinary medicine. However, the mechanism of their coinfection has not been investigated. In this study, we found that PCV2 promoted APP adhesion to and invasion of porcine alveolar macrophages (PAMs) during coinfection. Additionally, PCV2 suppressed reactive oxygen species (ROS) production by inhibiting cytomembrane NADPH oxidase activity, which was beneficial for APP survival in PAMs in vitro. During coinfection, PCV2 weakened the inflammatory response and macrophage antigen presentation by decreasing TNF-α, IFN-γ and IL-4 expression, and reduced clearance of the invading bacteria. The host-cell experimental results were verified in a mouse model. The findings provide a deeper and novel understanding of porcine coinfection, and will be extremely helpful for the design of strategies for PRDC control.
Collapse
Affiliation(s)
- Wenxi Qi
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Rining Zhu
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Chuntong Bao
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Jiameng Xiao
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Baijun Liu
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Ming Sun
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Xin Feng
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Jingmin Gu
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China
| | - Yang Li
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China.
| | - Liancheng Lei
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, Jilin, 130062, PR China; College of Animal Science, Yangtze University, Jingzhou, Hubei, 434023, PR China.
| |
Collapse
|
6
|
Gao M, Zhang B, He Y, Yang Q, Deng L, Zhu Y, Lai E, Wang M, Wang L, Yang G, Liao G, Bao J, Bu H. Efficient Generation of an Fah/Rag2 Dual-Gene Knockout Porcine Cell Line Using CRISPR/Cas9 and Adenovirus. DNA Cell Biol 2019; 38:314-321. [PMID: 30762444 DOI: 10.1089/dna.2018.4493] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Mengyu Gao
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
| | - Bingqi Zhang
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
| | - Yuting He
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
| | - Qing Yang
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
| | - Lihong Deng
- Laboratory of Pathology, West China School of Medicine, Sichuan University, Chengdu, China
| | - Yuqi Zhu
- Laboratory of Pathology, West China School of Medicine, Sichuan University, Chengdu, China
| | - Enjiang Lai
- Laboratory of Pathology, West China School of Medicine, Sichuan University, Chengdu, China
| | - Menghua Wang
- Laboratory of Pathology, West China School of Medicine, Sichuan University, Chengdu, China
| | - Laduona Wang
- Laboratory of Pathology, West China School of Medicine, Sichuan University, Chengdu, China
| | - Guang Yang
- Department of Experimental Animal Center, West China Hospital, Sichuan University, Chengdu, China
| | - Guangneng Liao
- Department of Experimental Animal Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ji Bao
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Bu
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
7
|
Xie X, Gan Y, Pang M, Shao G, Zhang L, Liu B, Xu Q, Wang H, Feng Y, Yu Y, Chen R, Wu M, Zhang Z, Hua L, Xiong Q, Liu M, Feng Z. Establishment and characterization of a telomerase-immortalized porcine bronchial epithelial cell line. J Cell Physiol 2018; 233:9763-9776. [PMID: 30078190 DOI: 10.1002/jcp.26942] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 06/12/2018] [Indexed: 01/03/2023]
Abstract
Primary porcine bronchial epithelial cells (PBECs) are an ideal model to study the molecular and pathogenic mechanisms of various porcine respiratory pathogens. However, the short lifespan of primary PBECs greatly limit their application. Here, we isolated and cultured primary PBECs and established immortalized PBECs by transfecting primary PBECs with the pEGFP-hTERT recombinant plasmid containing human telomerase reverse transcriptase (hTERT). Immortalized PBECs (hTERT-PBECs) retained the morphological and functional features of primary PBECs as indicated by cytokeratin 18 expression, telomerase activity assay, proliferation assays, karyotype analysis, and quantitative reverse-transcriptase polymerase chain reaction. Compared to primary PBECs, hTERT-PBECs had higher telomerase activity, extended replicative lifespan, and displayed enhanced proliferative activity. Moreover, this cell line is not transformed in vitro and does not exhibit a malignant phenotype in vivo, suggesting that it can be safely used in further studies. Besides, hTERT-PBECs were susceptible to swine influenza virus of H3N2 subtype and porcine circovirus type 2. In conclusion, the immortalized hTERT-PBECs represent a valuable in vitro model, which can be widely used in the study of porcine respiratory pathogenic infections.
Collapse
Affiliation(s)
- Xing Xie
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yuan Gan
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Maoda Pang
- Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Guoqing Shao
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Lei Zhang
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Beibei Liu
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Qi Xu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Haiyan Wang
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yanyan Feng
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China.,College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yanfei Yu
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Rong Chen
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Meng Wu
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Zhenzhen Zhang
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Lizhong Hua
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Qiyan Xiong
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Maojun Liu
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Zhixin Feng
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| |
Collapse
|
8
|
Yang N, Li J, Yang Q, Qiao J, Cui D, Liu F, Li H, Zhou S. Reduced antigen presentation capability and modified inflammatory/immunosuppressive cytokine expression of induced monocyte-derived dendritic cells from peripheral blood of piglets infected with porcine circovirus type 2. Arch Virol 2018; 163:1231-1239. [DOI: 10.1007/s00705-018-3735-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 01/06/2018] [Indexed: 12/01/2022]
|