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Emad A, El-Kenawy AA, El-Tholoth M. Molecular characterization of Marek's Disease virus reveals reticuloendotheliosis virus-long terminal repeat integration in the genome of the field isolates in Egypt. Poult Sci 2024; 103:103722. [PMID: 38626691 PMCID: PMC11036097 DOI: 10.1016/j.psj.2024.103722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/02/2024] [Accepted: 03/31/2024] [Indexed: 04/18/2024] Open
Abstract
The highly contagious, immunosuppressive, and cancer-causing Marek's disease virus (MDV) infects chickens. The financial costs of Marek's disease (MD) are significant for the chicken industry. In this study, a total of 180 samples from chicken farms suspected to be MDV-infected were collected. The chickens were sampled during the period between the months of October 2016 and February 2018 at Dakahlia and Damietta Governorates, Egypt. A total of 36 pooled samples were created. The prepared samples were inoculated into embryonated chicken eggs (ECEs). Indirect fluorescent antibody technique (IFAT) and ICP4 gene-based polymerase chain reaction (PCR) were used for MDV identification. For the genetic characterization of the identified virus, The ICP4 gene sequence was identified and compared with the sequences available from various regions of the world. Furthermore, the genomes of all detected MDVs were screened for the long terminal repeat (LTR) region of reticuloendotheliosis (REV) in their genomes. The results showed that 31 out of 36 pooled samples (86.1%) inoculated into ECEs displayed the characteristic pock lesions. By using IFAT and PCR to identify MDV in ECEs, positive results were found in 27 samples (75%). The Egyptian virus is thought to be genetically closely related to MDVs circulating in Ethiopia, China, and India. REV-LTR was amplified from 6 out of 27 field isolates genomes (22.2 %) while MDV vaccine strains were free from REV-LTR insertion. The integrated REV-LTRs depicted a close genetic relationship with those integrated in fowl poxvirus (FWPV) circulating in Egypt as well as those integrated in FWPVs and MDVs from China, USA, South Africa, and Australia. To the best of our knowledge, this investigation represents the first identification and characterization of REV-LTR insertions in Egyptian MDV field isolates. Given the findings above, additional research in the future seems crucial to determine how the REV-LTR insertions affect MDV pathogenesis, virulence, and insufficient vaccination protection.
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Affiliation(s)
- Aya Emad
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ali A. El-Kenawy
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed El-Tholoth
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
- Veterinary Science Program, Faculty of Health Sciences, Al Ain Men's Campus, Higher Colleges of Technology, 17155, UAE
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Xue J, Zhou D, Zhou J, Du X, Zhang X, Liu X, Ding L, Cheng Z. miR-155 facilitates the synergistic replication between avian leukosis virus subgroup J and reticuloendotheliosis virus by targeting a dual pathway. J Virol 2023; 97:e0093723. [PMID: 37909729 PMCID: PMC10688374 DOI: 10.1128/jvi.00937-23] [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: 06/25/2023] [Accepted: 10/01/2023] [Indexed: 11/03/2023] Open
Abstract
IMPORTANCE The synergy of two oncogenic retroviruses is an essential phenomenon in nature. The synergistic replication of ALV-J and REV in poultry flocks increases immunosuppression and pathogenicity, extends the tumor spectrum, and accelerates viral evolution, causing substantial economic losses to the poultry industry. However, the mechanism of synergistic replication between ALV-J and REV is still incompletely elusive. We observed that microRNA-155 targets a dual pathway, PRKCI-MAPK8 and TIMP3-MMP2, interacting with the U3 region of ALV-J and REV, enabling synergistic replication. This work gives us new targets to modulate ALV-J and REV's synergistic replication, guiding future research on the mechanism.
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Affiliation(s)
- Jingwen Xue
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
- College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Defang Zhou
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
| | - Jing Zhou
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
| | - Xusheng Du
- College of Agronomy and Agricultural Engineering, Liaocheng University, Liaocheng, Shandong, China
| | - Xinyue Zhang
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
| | - Xiaoyang Liu
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
| | - Longying Ding
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
| | - Ziqiang Cheng
- College of Veterinary Medicine, Shandong Agricultural University, Taian City, Shandong, China
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Jones BD, Kaufman EJ, Peel AJ. Viral Co-Infection in Bats: A Systematic Review. Viruses 2023; 15:1860. [PMID: 37766267 PMCID: PMC10535902 DOI: 10.3390/v15091860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Co-infection is an underappreciated phenomenon in contemporary disease ecology despite its ubiquity and importance in nature. Viruses, and other co-infecting agents, can interact in ways that shape host and agent communities, influence infection dynamics, and drive evolutionary selective pressures. Bats are host to many viruses of zoonotic potential and have drawn increasing attention in their role as wildlife reservoirs for human spillover. However, the role of co-infection in driving viral transmission dynamics within bats is unknown. Here, we systematically review peer-reviewed literature reporting viral co-infections in bats. We show that viral co-infection is common in bats but is often only reported as an incidental finding. Biases identified in our study database related to virus and host species were pre-existing in virus studies of bats generally. Studies largely speculated on the role co-infection plays in viral recombination and few investigated potential drivers or impacts of co-infection. Our results demonstrate that current knowledge of co-infection in bats is an ad hoc by-product of viral discovery efforts, and that future targeted co-infection studies will improve our understanding of the role it plays. Adding to the broader context of co-infection studies in other wildlife species, we anticipate our review will inform future co-infection study design and reporting in bats. Consideration of detection strategy, including potential viral targets, and appropriate analysis methodology will provide more robust results and facilitate further investigation of the role of viral co-infection in bat reservoirs.
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Affiliation(s)
- Brent D. Jones
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD 4111, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | | | - Alison J. Peel
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD 4111, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
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Dou J, Wang Z, Li L, Lu Q, Jin X, Ling X, Cheng Z, Zhang T, Shao H, Zhai X, Luo Q. A Multiplex Quantitative Polymerase Chain Reaction for the Rapid Differential Detection of Subgroups A, B, J, and K Avian Leukosis Viruses. Viruses 2023; 15:1789. [PMID: 37766196 PMCID: PMC10535029 DOI: 10.3390/v15091789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Avian leukosis (AL), caused by avian leukosis virus (ALV), is a contagious tumor disease that results in significant economic losses for the poultry industry. Currently, ALV-A, B, J, and K subgroups are the most common in commercial poultry and cause possible coinfections. Therefore, close monitoring is necessary to avoid greater economic losses. In this study, a novel multiplex quantitative polymerase chain reaction (qPCR) assay was developed to detect ALV-A, ALV-B, ALV-J, and ALV-K with limits of detection of 40, 11, 13.7, and 96 copies/µL, respectively, and no cross-reactivity with other ALV subtypes and avian pathogens. We detected 852 cell cultures inoculated with clinical samples using this method, showing good consistency with conventional PCR and ELISA. The most prevalent ALV strain in Hubei Province, China, was still ALV-J (11.74%). Although single infections with ALV-A, ALV-B, and ALV-K were not found, coinfections with different subgroup strains were identified: 0.7% for ALV-A/J, 0.35% for ALV-B/J, 0.25% for ALV-J/K, and 0.12% for ALV-A/B/K and ALV-A/B/J. Therefore, our novel multiplex qPCR may be a useful tool for molecular epidemiology, clinical detection of ALV, and ALV eradication programs.
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Affiliation(s)
- Junfeng Dou
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
- Department of Animal Medicine, College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - Zui Wang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Li Li
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Qin Lu
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Xinxin Jin
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Xiaochun Ling
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Zhengyu Cheng
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Tengfei Zhang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Huabin Shao
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Xinguo Zhai
- Department of Animal Medicine, College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - Qingping Luo
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Special One, Nanhuyaoyuan, Hongshan District, Wuhan 430064, China; (J.D.); (Z.W.); (L.L.); (Q.L.); (X.J.); (X.L.); (H.S.)
- Hubei Hongshan Laboratory, Wuhan 430064, China
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Yang J, Yang K, Wang K, Zhou D, Zhou J, Du X, Liu S, Cheng Z. Serum amyloid A regulates TLR2/4-mediated IFN-β signaling pathway against Marek's disease virus. Virus Res 2023; 326:199044. [PMID: 36652973 DOI: 10.1016/j.virusres.2023.199044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/16/2023]
Abstract
Serum amyloid A (SAA), an acute response phase protein (APP), is crucial for the innate immune response during pathogenic microorganisms' invasion. Marek's disease virus (MDV) is a highly oncogenic alphaherpesvirus that activates multiple innate immune molecules, including SAA, in the host during infection. However, the pathway through which SAA participates in MDV-induced host innate immunity remains unknown. The present study aimed to elucidate the pathway through which SAA exerts its anti-MDV function. We observed that MDV infection in vivo and in vitro significantly elevated SAA expression. Furthermore, through SAA overexpression and knockdown experiments, we demonstrated that SAA could inhibit MDV replication. Subsequently, we found that SAA activated Toll-Like Receptor 2/4 (TLR2/4) -mediated Interferon Beta (IFN-β) promoter activity and IFN regulatory factor 7 (IRF7) promoter activity. During MDV infection, SAA enhanced TLR2/4-mediated IFN-β signal transduction and messenger RNAs (mRNAs) expression of type I IFN (IFN-I) and interferon-stimulated genes (ISGs). Finally, TLR2/4 inhibitor OxPAPC inhibits the anti-MDV activity of SAA. These results demonstrated that SAA inhibits MDV replication and enhancing TLR2/4-mediated IFN-β signal transduction to promote IFNs and ISGs expression. This finding is the first to demonstrate the signaling pathway by which SAA exerts its anti-MDV function. It also provides new insights into the control of oncogenic herpesviruses from the perspective of acute response phase proteins.
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Affiliation(s)
- Jianhao Yang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Kunmei Yang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Kang Wang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Defang Zhou
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Jing Zhou
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Xusheng Du
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Shenglong Liu
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China
| | - Ziqiang Cheng
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China.
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Viral Coinfections. Viruses 2022; 14:v14122645. [PMID: 36560647 PMCID: PMC9784482 DOI: 10.3390/v14122645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
In nature, viral coinfection is as widespread as viral infection alone. Viral coinfections often cause altered viral pathogenicity, disrupted host defense, and mixed-up clinical symptoms, all of which result in more difficult diagnosis and treatment of a disease. There are three major virus-virus interactions in coinfection cases: viral interference, viral synergy, and viral noninterference. We analyzed virus-virus interactions in both aspects of viruses and hosts and elucidated their possible mechanisms. Finally, we summarized the protocol of viral coinfection studies and key points in the process of virus separation and purification.
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Du X, Zhou D, Zhou J, Xue J, Cheng Z. RIOK3-mediated Akt phosphorylation facilitates synergistic replication of Marek's disease and reticuloendotheliosis viruses. Virulence 2022; 13:1184-1198. [PMID: 35795905 PMCID: PMC9331201 DOI: 10.1080/21505594.2022.2096247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Co-infection of Marek’s disease virus (MDV) and reticuloendotheliosis virus (REV) synergistically drives disease progression, yet little is known about the mechanism of the synergism. Here, we found that co-infection of REV and MDV increased their replication via the RIOK3-Akt pathway. Initially, we noticed that the viral titres of MDV and REV significantly increased in REV and MDV co-infected cells compared with single-infected cells. Furthermore, tandem mass tag peptide labelling coupled with LC/MS analysis showed that Akt was upregulated in REV and MDV co-infected cells. Overexpression of Akt promoted synergistic replication of MDV and REV. Conversely, inhibition of Akt suppressed synergistic replication of MDV and REV. However, PI3K inhibition did not affect synergistic replication of MDV and REV, suggesting that the PI3K/Akt pathway is not involved in the synergism of MDV and REV. In addition, we revealed that RIOK3 was recruited to regulate Akt in REV and MDV co-infected cells. Moreover, wild-type RIOK3, but not kinase-dead RIOK3, mediated Akt phosphorylation and promoted synergistic replication of MDV and REV. Our results illustrate that MDV and REV activated a novel RIOK3-Akt signalling pathway to facilitate their synergistic replication.
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Affiliation(s)
- Xusheng Du
- College of Veterinary Medicine, Shandong Agricultural University, China
| | - Defang Zhou
- College of Veterinary Medicine, Shandong Agricultural University, China
| | - Jing Zhou
- College of Veterinary Medicine, Shandong Agricultural University, China
| | - Jingwen Xue
- College of Veterinary Medicine, Shandong Agricultural University, China
| | - Ziqiang Cheng
- College of Veterinary Medicine, Shandong Agricultural University, China
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