1
|
Abukhadra BA, Abd El Rahman S, Soltan MA, Elhafi GE, Mosad SM. Preliminary molecular study for DIVA trial of antigenically characterized circulating bovine herpesvirus subtype 1.1 in Egypt. Virology 2024; 593:110012. [PMID: 38367473 DOI: 10.1016/j.virol.2024.110012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 01/27/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024]
Abstract
Using marker vaccines to control bovine alphaherpesvirus-1 (BoHV-1) is a novel strategy for differentiation between infected and vaccinated animals (DIVA). In this study, multiplex real-time PCR targeting gD and gE genes was applied for BoHV-1 screening on 60 clinical samples from cattle with a history of vaccination, in some cases by US2-deleted marker vaccines, that were suffering from severe respiratory symptoms. Conventional PCR targeting the gC and US2 flanking region was done for molecular characterization and identification of the US2-deleted vaccine strain. Six samples were positive for BoHV-1 by both RT-PCR and conventional PCR. Surprisingly, a conventional PCR DIVA trial based on the US2 gene revealed that only one sample that exhibited the US2 gene was a wild virus, while others that did not exhibit the US2 gene were vaccine viruses. Phylogenetic characterization classifies the samples as BoHV-1.1. This finding reveals the circulation of vaccine virus in field-diseased animals, which threatens the eradication program.
Collapse
Affiliation(s)
- Basel A Abukhadra
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, 35516 El Gomhoria Street, Mansoura, Egypt
| | - Sahar Abd El Rahman
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, 35516 El Gomhoria Street, Mansoura, Egypt.
| | - Mohamed A Soltan
- Department of Veterinary Medicine, Infectious Diseases Division, Faculty of Veterinary Medicine, Suez Canal University, 41522, Ismailia, Egypt
| | - Giuma E Elhafi
- Department of Microbiology, Faculty of Agriculture and Veterinary Medicine, Azzaytuna University, Tarhuna, Libya
| | - Samah M Mosad
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, 35516 El Gomhoria Street, Mansoura, Egypt
| |
Collapse
|
2
|
Justice JL, Reed TJ, Phelan B, Greco TM, Hutton JE, Cristea IM. DNA-PK and ATM drive phosphorylation signatures that antagonistically regulate cytokine responses to herpesvirus infection or DNA damage. Cell Syst 2024; 15:339-361.e8. [PMID: 38593799 DOI: 10.1016/j.cels.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/09/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
The DNA-dependent protein kinase, DNA-PK, is an essential regulator of DNA damage repair. DNA-PK-driven phosphorylation events and the activated DNA damage response (DDR) pathways are also components of antiviral intrinsic and innate immune responses. Yet, it is not clear whether and how the DNA-PK response differs between these two forms of nucleic acid stress-DNA damage and DNA virus infection. Here, we define DNA-PK substrates and the signature cellular phosphoproteome response to DNA damage or infection with the nuclear-replicating DNA herpesvirus, HSV-1. We establish that DNA-PK negatively regulates the ataxia-telangiectasia-mutated (ATM) DDR kinase during viral infection. In turn, ATM blocks the binding of DNA-PK and the nuclear DNA sensor IFI16 to viral DNA, thereby inhibiting cytokine responses. However, following DNA damage, DNA-PK enhances ATM activity, which is required for IFN-β expression. These findings demonstrate that the DDR autoregulates cytokine expression through the opposing modulation of DDR kinases.
Collapse
Affiliation(s)
- Joshua L Justice
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA
| | - Tavis J Reed
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA
| | - Brett Phelan
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA
| | - Todd M Greco
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA
| | - Josiah E Hutton
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA
| | - Ileana M Cristea
- Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA.
| |
Collapse
|
3
|
Wang T, Hu L, Li R, Ren H, Li S, Sun Q, Ding X, Li Y, Wang C, Li L. Hyperoside inhibits EHV-8 infection via alleviating oxidative stress and IFN production through activating JNK/Keap1/Nrf2/HO-1 signaling pathways. J Virol 2024; 98:e0015924. [PMID: 38499512 PMCID: PMC11019850 DOI: 10.1128/jvi.00159-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/29/2024] [Indexed: 03/20/2024] Open
Abstract
Equine herpesvirus type 8 (EHV-8) causes abortion and respiratory disease in horses and donkeys, leading to serious economic losses in the global equine industry. Currently, there is no effective vaccine or drug against EHV-8 infection, underscoring the need for a novel antiviral drug to prevent EHV-8-induced latent infection and decrease the pathogenicity of this virus. The present study demonstrated that hyperoside can exert antiviral effects against EHV-8 infection in RK-13 (rabbit kidney cells), MDBK (Madin-Darby bovine kidney), and NBL-6 cells (E. Derm cells). Mechanistic investigations revealed that hyperoside induces heme oxygenase-1 expression by activating the c-Jun N-terminal kinase/nuclear factor erythroid-2-related factor 2/Kelch-like ECH-associated protein 1 axis, alleviating oxidative stress and triggering a downstream antiviral interferon response. Accordingly, hyperoside inhibits EHV-8 infection. Meanwhile, hyperoside can also mitigate EHV-8-induced injury in the lungs of infected mice. These results indicate that hyperoside may serve as a novel antiviral agent against EHV-8 infection.IMPORTANCEHyperoside has been reported to suppress viral infections, including herpesvirus, hepatitis B virus, infectious bronchitis virus, and severe acute respiratory syndrome coronavirus 2 infection. However, its mechanism of action against equine herpesvirus type 8 (EHV-8) is currently unknown. Here, we demonstrated that hyperoside significantly inhibits EHV-8 adsorption and internalization in susceptible cells. This process induces HO-1 expression via c-Jun N-terminal kinase/nuclear factor erythroid-2-related factor 2/Kelch-like ECH-associated protein 1 axis activation, alleviating oxidative stress and triggering an antiviral interferon response. These findings indicate that hyperoside could be very effective as a drug against EHV-8.
Collapse
Affiliation(s)
- Tongtong Wang
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Leyu Hu
- College of Agronomy, Liaocheng University, Liaocheng, China
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Ruibo Li
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Huiying Ren
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Shuwen Li
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Qi Sun
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Xiangdan Ding
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Yubao Li
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Changfa Wang
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Liangliang Li
- College of Agronomy, Liaocheng University, Liaocheng, China
| |
Collapse
|
4
|
Tsang TK, Du RQR, Fang VJ, Lau EHY, Chan KH, Chu DKW, Ip DKM, Peiris JSM, Leung GM, Cauchemez S, Cowling BJ. Decreased risk of non-influenza respiratory infection after influenza B virus infection in children. Epidemiol Infect 2024; 152:e60. [PMID: 38584132 DOI: 10.1017/s0950268824000542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024] Open
Abstract
Previous studies suggest that influenza virus infection may provide temporary non-specific immunity and hence lower the risk of non-influenza respiratory virus infection. In a randomized controlled trial of influenza vaccination, 1 330 children were followed-up in 2009-2011. Respiratory swabs were collected when they reported acute respiratory illness and tested against influenza and other respiratory viruses. We used Poisson regression to compare the incidence of non-influenza respiratory virus infection before and after influenza virus infection. Based on 52 children with influenza B virus infection, the incidence rate ratio (IRR) of non-influenza respiratory virus infection after influenza virus infection was 0.47 (95% confidence interval: 0.27-0.82) compared with before infection. Simulation suggested that this IRR was 0.87 if the temporary protection did not exist. We identified a decreased risk of non-influenza respiratory virus infection after influenza B virus infection in children. Further investigation is needed to determine if this decreased risk could be attributed to temporary non-specific immunity acquired from influenza virus infection.
Collapse
Affiliation(s)
- Tim K Tsang
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, Hong Kong
| | - Richael Q R Du
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Vicky J Fang
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Eric H Y Lau
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, Hong Kong
| | - Kwok Hung Chan
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Daniel K W Chu
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Dennis K M Ip
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - J S Malik Peiris
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- HKU-Pasteur Research Pole, The University of Hong Kong, Hong Kong
- Centre for Immunology and Infection, Hong Kong Science and Technology Park, Hong Kong
| | - Gabriel M Leung
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, Hong Kong
| | - Simon Cauchemez
- Mathematical Modelling of Infectious Diseases Unit, Institut Pasteur, UMR2000, CNRS, Paris, France
| | - Benjamin J Cowling
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, Hong Kong
| |
Collapse
|
5
|
Haycock J, Maehr T, Dastjerdi A, Steinbach F. Immunostimulation of Asian elephant ( Elephas maximus) blood cells by parapoxvirus ovis and CpG motif-containing bacterial plasmid DNA upregulates innate immune gene expression. Front Immunol 2024; 15:1329820. [PMID: 38590526 PMCID: PMC10999609 DOI: 10.3389/fimmu.2024.1329820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
The immune system of Asian elephants (Elephas maximus) is poorly studied, compared to that of livestock, rodents or humans. The innate immune response has become a focus of interest in relation to Elephant endotheliotropic herpesviruses (EEHVs). EEHVs cause a fatal hemorrhagic disease (EEHV-HD) and are a significant threat to captive Asian elephant populations worldwide. Similar to other herpesvirus infections, nearly all animals become infected, but only some develop disease. As progression to EEHV-HD is often acute, a robust innate immune response is crucial to control EEHV infections. This is invariably true of the host in the first instance, but it can also potentially be modulated by intervention strategies. Here, two immunostimulant veterinary medicinal products, authorized for use in domestic species, were tested for their ability to induce innate anti-viral immune responses in Asian elephant blood cells. Sequence data were obtained for a range of previously unidentified Asian elephant immune genes, including C-X-C motif chemokine ligand 10 (CXCL10), interferon stimulated gene 15 (ISG15) and myxovirus GTPase 1 (Mx1), and were employed in the design of species-specific qPCR assays. These assays were subsequently used in analyses to determine fold changes in gene expression over a period of 24 hours. This study demonstrates that both immunostimulant medications are capable of inducing significant innate anti-viral immune responses which suggests that both could be beneficial in controlling EEHV infections in Asian elephants.
Collapse
Affiliation(s)
- Jonathan Haycock
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
| | - Tanja Maehr
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Akbar Dastjerdi
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
| | - Falko Steinbach
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
| |
Collapse
|
6
|
Chen H, Jian Z, Xu T, Xu L, Deng L, Shao L, Zhang L, He L, Li Y, Zhu L. Advances in the mechanism of inflammasomes activation in herpes virus infection. Front Immunol 2024; 15:1346878. [PMID: 38590522 PMCID: PMC10999540 DOI: 10.3389/fimmu.2024.1346878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/04/2024] [Indexed: 04/10/2024] Open
Abstract
Herpesviruses, prevalent DNA viruses with a double-stranded structure, establish enduring infections and play a part in various diseases. Despite their deployment of multiple tactics to evade the immune system, both localized and systemic inflammatory responses are triggered by the innate immune system's recognition of them. Recent progress has offered more profound understandings of the mechanisms behind the activation of the innate immune system by herpesviruses, specifically through inflammatory signaling. This process encompasses the initiation of an intracellular nucleoprotein complex, the inflammasome associated with inflammation.Following activation, proinflammatory cytokines such as IL-1β and IL-18 are released by the inflammasome, concurrently instigating a programmed pathway for cell death. Despite the structural resemblances between herpesviruses, the distinctive methods of inflammatory activation and the ensuing outcomes in diseases linked to the virus exhibit variations.The objective of this review is to emphasize both the similarities and differences in the mechanisms of inflammatory activation among herpesviruses, elucidating their significance in diseases resulting from these viral infections.Additionally, it identifies areas requiring further research to comprehensively grasp the impact of this crucial innate immune signaling pathway on the pathogenesis of these prevalent viruses.
Collapse
Affiliation(s)
- Hourui Chen
- 4+4 Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhijie Jian
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Tong Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lei Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lishuang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lina Shao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Leyi Zhang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Li He
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Youyou Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ling Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| |
Collapse
|
7
|
Kawasaki H, Hariyama T, Kosugi I, Meguro S, Iwata F, Shimizu K, Magata Y, Iwashita T. Human induced pluripotent stem cells are resistant to human cytomegalovirus infection primarily at the attachment level due to the reduced expression of cell-surface heparan sulfate. J Virol 2024; 98:e0127823. [PMID: 38345384 PMCID: PMC10949504 DOI: 10.1128/jvi.01278-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/16/2024] [Indexed: 03/20/2024] Open
Abstract
Cytomegalovirus (CMV), a type of herpes virus, is the predominant cause of congenital anomalies due to intrauterine infections in humans. Adverse outcomes related to intrauterine infections with human cytomegalovirus (HCMV) vary widely, depending on factors such as fetal infection timing, infection route, and viral virulence. The precise mechanism underlying HCMV susceptibility remains unclear. In this study, we compared the susceptibility of neonatal human dermal fibroblast cells (NHDFCs) and human induced pluripotent stem cells (hiPSCs) derived from NHDFCs, which are genetically identical to HCMV, using immunostaining, microarray, in situ hybridization, quantitative PCR, and scanning electron microscopy. These cells were previously used to compare CMV susceptibility, but the underlying mechanisms were not fully elucidated. HCMV susceptibility of hiPSCs was significantly lower in the earliest phase. No shared gene ontologies were observed immediately post-infection between the two cell types using microarray analysis. Early-stage expression of HCMV antigens and the HCMV genome was minimal in immunostaining and in in situ hybridization in hiPSCs. This strongly suggests that HCMV does not readily bind to hiPSC surfaces. Scanning electron microscopy performed using the NanoSuit method confirmed the scarcity of HCMV particles on hiPSC surfaces. The zeta potential and charge mapping of the charged surface in NHDFCs and hiPSCs exhibited minimal differences when assessed using zeta potential analyzer and scanning ion conductance microscopy; however, the expression of heparan sulfate (HS) was significantly lower in hiPSCs compared with that in NHDFCs. Thus, HS expression could be a primary determinant of HCMV resistance in hiPSCs at the attachment level. IMPORTANCE Numerous factors such as attachment, virus particle entry, transcription, and virus particle egress can affect viral susceptibility. Since 1984, pluripotent cells are known to be CMV resistant; however, the exact mechanism underlying this resistance remains elusive. Some researchers suggest inhibition in the initial phase of HCMV binding, while others have suggested the possibility of a sufficient amount of HCMV entering the cells to establish latency. This study demonstrates that HCMV particles rarely attach to the surfaces of hiPSCs. This is not due to limitations in the electrostatic interactions between the surface of hiPSCs and HCMV particles, but due to HS expression. Therefore, HS expression should be recognized as a key factor in determining the susceptibility of HCMV in congenital infection in vitro and in vivo. In the future, drugs targeting HS may become crucial for the treatment of congenital CMV infections. Thus, further research in this area is warranted.
Collapse
Affiliation(s)
- Hideya Kawasaki
- Institute for NanoSuit Research, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Takahiko Hariyama
- Institute for NanoSuit Research, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Isao Kosugi
- Department of Regenerative and Infectious Pathology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shiori Meguro
- Department of Regenerative and Infectious Pathology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Futoshi Iwata
- Research Institute of Electronics, Shizuoka University, Hamamatsu, Shizuoka, Japan
| | - Kosuke Shimizu
- Department of Molecular Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yasuhiro Magata
- Department of Molecular Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Toshihide Iwashita
- Department of Regenerative and Infectious Pathology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| |
Collapse
|
8
|
Sodroski CN, Oh HS, Chou SF, Knipe DM. Sp1 facilitates continued HSV-1 gene expression in the absence of key viral transactivators. mBio 2024; 15:e0347923. [PMID: 38349188 PMCID: PMC10936440 DOI: 10.1128/mbio.03479-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 03/14/2024] Open
Abstract
Productive replication of herpes simplex virus (HSV) relies upon a well-ordered transcriptional cascade flowing from immediate-early (IE) to early (E) to late (L) gene products. While several virus-encoded transcriptional activators are involved in this process, IE and E gene promoters also contain multiple binding sites for the ubiquitously expressed cellular transcription factor Sp1. Sp1 has been previously implicated in activating HSV-1 gene transcription downstream of these sites, but why Sp1-binding sites are maintained in the promoters of genes activated by virus-encoded activators remains unclear. We hypothesized that Sp1 enables continued HSV-1 transcription and replication when viral transactivators are limited. We used a depletion-based approach in human foreskin fibroblasts to investigate the specific contribution of Sp1 to the initiation and progression of the HSV-1 lytic gene cascade. We found that Sp1 increased viral transcript levels, protein expression, and replication following infection with VP16- or ICP0-deficient viruses but had little to no effect on rescued viruses or during wild-type (WT) HSV-1 infection. Moreover, Sp1 promoted WT virus transcription and replication following interferon treatment of fibroblasts and thus may contribute to viral immune evasion. Interestingly, we observed reduced expression of Sp1 and Sp1-family transcription factors in differentiated sensory neurons compared to undifferentiated cells, suggesting that reduced Sp1 levels may also contribute to HSV-1 latent infection. Overall, these findings indicate that Sp1 can promote HSV-1 gene expression in the absence of key viral transactivators; thus, HSV-1 may use Sp1 to maintain its gene expression and replication under adverse conditions.IMPORTANCEHerpes simplex virus (HSV) is a common human pathogen that actively replicates in the epithelia but can persist for the lifetime of the infected host via a stable, latent infection in neurons. A key feature of the HSV replication cycle is a complex transcriptional program in which virus and host-cell factors coordinate to regulate expression of the viral gene products necessary for continued viral replication. Multiple binding sites for the cellular transcription factor Sp1 are located in the promoters of HSV-1 genes, but how Sp1 binding contributes to transcription and replication of wild-type virus is not fully understood. In this study, we identified a specific role for Sp1 in maintaining HSV-1 gene transcription under adverse conditions, as when virus-encoded transcriptional activators were absent or limited. Preservation of Sp1-binding sites in HSV-1 gene promoters may thus benefit the virus as it navigates diverse cell types and host-cell conditions during infection.
Collapse
Affiliation(s)
- Catherine N. Sodroski
- Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts, USA
- Program in Virology, Harvard Medical School, Boston, Massachusetts, USA
| | - Hyung Suk Oh
- Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Shu-Fan Chou
- Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - David M. Knipe
- Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts, USA
- Program in Virology, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
9
|
Dorfman B, Marcos-Hadad E, Tadmor-Levi R, David L. Disease resistance and infectivity of virus susceptible and resistant common carp strains. Sci Rep 2024; 14:4677. [PMID: 38409362 PMCID: PMC10897132 DOI: 10.1038/s41598-024-55133-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/20/2024] [Indexed: 02/28/2024] Open
Abstract
Infectious diseases challenge health and welfare of humans and animals. Unlike for humans, breeding of genetically resistant animals is a sustainable solution, also providing unique research opportunities. Chances to survive a disease are improved by disease resistance, but depend also on chances to get infected and infect others. Considerable knowledge exists on chances of susceptible and resistant animals to survive a disease, yet, almost none on their infectivity and if and how resistance and infectivity correlate. Common carp (Cyprinus carpio) is widely produced in aquaculture, suffering significantly from a disease caused by cyprinid herpes virus type 3 (CyHV-3). Here, the infectivity of disease-resistant and susceptible fish types was tested by playing roles of shedders (infecting) and cohabitants (infected) in all four type-role combinations. Resistant shedders restricted spleen viral load and survived more than susceptible ones. However, mortality of susceptible cohabitants infected by resistant shedders was lower than that of resistant cohabitants infected by susceptible shedders. Virus levels in water were lower in tanks with resistant shedders leading to lower spleen viral loads in cohabitants. Thus, we empirically demonstrated that disease resistant fish survive better and infect less, with implications to epidemiology in general and to the benefit of aquaculture production.
Collapse
Affiliation(s)
- Batya Dorfman
- Department of Animal Sciences, RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Evgeniya Marcos-Hadad
- Department of Animal Sciences, RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Roni Tadmor-Levi
- Department of Animal Sciences, RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Lior David
- Department of Animal Sciences, RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
| |
Collapse
|
10
|
Hogan CH, Owens SM, Reynoso GV, Liao Y, Meyer TJ, Zelazowska MA, Liu B, Li X, Grosskopf AK, Khairallah C, Kirillov V, Reich NC, Sheridan BS, McBride KM, Gewurz BE, Hickman HD, Forrest JC, Krug LT. Multifaceted roles for STAT3 in gammaherpesvirus latency revealed through in vivo B cell knockout models. mBio 2024; 15:e0299823. [PMID: 38170993 PMCID: PMC10870824 DOI: 10.1128/mbio.02998-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024] Open
Abstract
Cancers associated with the oncogenic gammaherpesviruses, Epstein-Barr virus and Kaposi sarcoma herpesvirus, are notable for their constitutive activation of the transcription factor signal transducer and activator of transcription 3 (STAT3). To better understand the role of STAT3 during gammaherpesvirus latency and the B cell response to infection, we used the model pathogen murine gammaherpesvirus 68 (MHV68). Genetic deletion of STAT3 in B cells of CD19cre/+Stat3f/f mice reduced peak MHV68 latency approximately sevenfold. However, infected CD19cre/+Stat3f/f mice exhibited disordered germinal centers and heightened virus-specific CD8 T cell responses compared to wild-type (WT) littermates. To circumvent the systemic immune alterations observed in the B cell-STAT3 knockout mice and more directly evaluate intrinsic roles for STAT3, we generated mixed bone marrow chimeric mice consisting of WT and STAT3 knockout B cells. We discovered a dramatic reduction in latency in STAT3 knockout B cells compared to their WT B cell counterparts in the same lymphoid organ. RNA sequencing of sorted germinal center B cells revealed that MHV68 infection shifts the gene signature toward proliferation and away from type I and type II IFN responses. Loss of STAT3 largely reversed the virus-driven transcriptional shift without impacting the viral gene expression program. STAT3 promoted B cell processes of the germinal center, including IL-21-stimulated downregulation of surface CD23 on B cells infected with MHV68 or EBV. Together, our data provide mechanistic insights into the role of STAT3 as a latency determinant in B cells for oncogenic gammaherpesviruses.IMPORTANCEThere are no directed therapies to the latency program of the human gammaherpesviruses, Epstein-Barr virus and Kaposi sarcoma herpesvirus. Activated host factor signal transducer and activator of transcription 3 (STAT3) is a hallmark of cancers caused by these viruses. We applied the murine gammaherpesvirus pathogen system to explore STAT3 function upon primary B cell infection in the host. Since STAT3 deletion in all CD19+ B cells of infected mice led to altered B and T cell responses, we generated chimeric mice with both normal and STAT3-deleted B cells. B cells lacking STAT3 failed to support virus latency compared to normal B cells from the same infected animal. Loss of STAT3 impaired B cell proliferation and differentiation and led to a striking upregulation of interferon-stimulated genes. These findings expand our understanding of STAT3-dependent processes that are key to its function as a pro-viral latency determinant for oncogenic gammaherpesviruses in B cells and may provide novel therapeutic targets.
Collapse
Affiliation(s)
- Chad H. Hogan
- Graduate Program in Genetics, Stony Brook University, Stony Brook, New York, USA
- HIV & AIDS Malignancy Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Shana M. Owens
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Glennys V. Reynoso
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Yifei Liao
- Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas J. Meyer
- CCR Collaborative Bioinformatics Resource, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Monika A. Zelazowska
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Bin Liu
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaofan Li
- HIV & AIDS Malignancy Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Anna K. Grosskopf
- HIV & AIDS Malignancy Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Camille Khairallah
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Varvara Kirillov
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Nancy C. Reich
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Brian S. Sheridan
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Kevin M. McBride
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Benjamin E. Gewurz
- Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Harvard Program in Virology, Harvard Medical School, Boston, Massachusetts, USA
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Heather D. Hickman
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - J. Craig Forrest
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Laurie T. Krug
- HIV & AIDS Malignancy Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| |
Collapse
|
11
|
López de Cáceres CVB, Sant'Ana MSP, Roman Tager EMJ, Burbano RMR, de Almeida OP, Vargas PA, Fonseca FP. Extracavitary Primary Effusion Lymphoma Affecting the Oral Cavity: A Rare Case Report. Int J Surg Pathol 2024; 32:119-132. [PMID: 37150962 DOI: 10.1177/10668969231167509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Primary effusion lymphoma (PEL) is an aggressive neoplasm often diagnosed in immunosuppressed patients demonstrating peritoneal, pleural, or pericardial effusions. This high-grade lymphoma is strongly associated with human herpesvirus 8 (HHV8) infection and most of the lesions also show the presence of Epstein-Barr virus in tumor cells, which lacks CD20 expression and reveals a plasmablastic morphology and phenotype. The extracavitary or solid variant of PEL is even rarer and usually affects the lymph nodes and is currently considered a clinical manifestation of the classic PEL. In the oral cavity, extracavitary PEL is extremely rare and only a few patients have been previously reported, with no detailed clinicopathological description. The recognition of oral extracavitary PEL is even more important given the occurrence of plasmablastic lymphoma in the oral mucosa, which shares many clinical, microscopic, and phenotypic features with PEL, therefore, demanding from pathologists the search for HHV8, especially in immunosuppressed patients, and an appropriate clinical evaluation. In this report, we aim to describe a very rare extracavitary PEL affecting the palate of a 36-year-old patient and to review the literature regarding the extracavitary presentation of this aggressive lymphoma. This report demonstrates the importance of searching for HHV8 infection in oral lymphomas with plasmablastic features.
Collapse
Affiliation(s)
- Cinthia V B López de Cáceres
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Maria S P Sant'Ana
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Elena M J Roman Tager
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | - Oslei P de Almeida
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo A Vargas
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Felipe P Fonseca
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
12
|
Zhao J, Liu X, Liu J, Ye F, Wei B, Deng M, Li T, Huang P, Wang P. Chemical Synthesis Creates Single Glycoforms of the Ectodomain of Herpes Simplex Virus-1 Glycoprotein D. J Am Chem Soc 2024; 146:2615-2623. [PMID: 38117537 DOI: 10.1021/jacs.3c11543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Herpes simplex virus-1 (HSV-1) utilizes multiple viral surface glycoproteins to trigger virus entry and fusion. Among these glycoproteins, glycoprotein D (gD) functions as a receptor-binding protein, which makes it an attractive target for the development of vaccines against HSV-1 infection. Several recombinant gD subunit vaccines have been investigated in both preclinical and clinical phases with varying degrees of success. It is fundamentally critical to explore the functions of gD glycans. In light of this, we report an efficient synthetic platform to construct glycosylated gDs bearing homogeneous glycans at N94 and N121. The oligosaccharides were prepared by enzymatic synthesis and conjugated to peptidyl sectors. The glycoproteins were constructed via a combination of 7-(piperazin-1-yl)-2-(methyl)quinolinyl (PPZQ)-assisted expressed protein ligation and β-mercapto amino acid-assisted-desulfurization strategies. Biological studies showed that synthetic gDs exhibited potent in vivo activity in mice.
Collapse
Affiliation(s)
- Jie Zhao
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xinliang Liu
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jialin Liu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Farong Ye
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bingcheng Wei
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Minggang Deng
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tiehai Li
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ping Huang
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ping Wang
- Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
- Shenzhen Research Institute of Shanghai Jiao Tong University, Shenzhen 518057, China
| |
Collapse
|
13
|
Rocchigiani AM, Bertoldi L, Coradduzza E, Lostia G, Pintus D, Scivoli R, Cancedda MG, Fiori MS, Bechere R, Murtino AP, Pala G, Cardeti G, Macioccu S, Dettori MA, Pintore A, Ligios C, Puggioni G. Whole-Genome Sequencing of Two Canine Herpesvirus 1 (CaHV-1) Isolates and Clinicopathological Outcomes of Infection in French Bulldog Puppies. Viruses 2024; 16:209. [PMID: 38399985 PMCID: PMC10893542 DOI: 10.3390/v16020209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Canine herpesvirus 1 (CaHV-1) infects dogs, causing neonatal death and ocular, neurological, respiratory, and reproductive problems in adults. Although CaHV-1 is widespread in canine populations, only four studies have focused on the CaHV-1 whole genome. In such context, two CaHV-1 strains from both the kidney and spleen of 20-day-old deceased French Bulldog puppies were recently isolated in Sardinia, Italy. The extracted viral DNA underwent whole-genome sequencing using the Illumina MiSeq platform. The Italian CaHV-1 genomes were nearly identical (>99%), shared the same tree branch, and clustered near the ELAL-1 (MW353125) and BTU-1 (KX828242) strains, enlarging the completely separated clade discussed by Lewin et al., in 2020. This study aims to provide new insights on the evolution of the CaHV-1, based on high-resolution whole-genome phylogenetic analysis, and on its clinicopathological characterization during a fatal outbreak in puppies.
Collapse
Affiliation(s)
- Angela Maria Rocchigiani
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | | | - Elisabetta Coradduzza
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Giada Lostia
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Davide Pintus
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Rosario Scivoli
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Maria Giovanna Cancedda
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Mariangela Stefania Fiori
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Roberto Bechere
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Anna Pina Murtino
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Giovanni Pala
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Giusy Cardeti
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana M. Aleandri, 00178 Roma, Italy;
| | - Simona Macioccu
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Maria Antonietta Dettori
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Antonio Pintore
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Ciriaco Ligios
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| | - Giantonella Puggioni
- Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy; (A.M.R.); (G.L.); (D.P.); (R.S.); (M.G.C.); (M.S.F.); (R.B.); (A.P.M.); (G.P.); (S.M.); (M.A.D.); (A.P.); (C.L.); (G.P.)
| |
Collapse
|
14
|
El-mayet FS, Jones C. Specificity protein 1 (Sp1) and glucocorticoid receptor (GR) stimulate bovine alphaherpesvirus 1 (BoHV-1) replication and cooperatively transactivate the immediate early transcription unit 1 promoter. J Virol 2024; 98:e0143623. [PMID: 38084958 PMCID: PMC10804982 DOI: 10.1128/jvi.01436-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/22/2023] [Indexed: 01/24/2024] Open
Abstract
Bovine alphaherpesvirus 1 (BoHV-1) infections cause respiratory tract disorders and suppress immune responses, which can culminate in bacterial pneumonia. Following acute infection, BoHV-1 establishes lifelong latency in sensory neurons present in trigeminal ganglia (TG) and unknown cells in pharyngeal tonsil. Latently infected calves consistently reactivate from latency after an intravenous injection of the synthetic corticosteroid dexamethasone (DEX), which mimics the effects of stress. The immediate early transcription unit 1 (IEtu1) promoter drives expression of infected cell protein 0 (bICP0) and bICP4, two key viral transcriptional regulators. The IEtu1 promoter contains two functional glucocorticoid receptor (GR) response elements (GREs), and this promoter is transactivated by GR, DEX, and certain Krüppel transcription factors that interact with GC-rich motifs, including consensus specificity protein 1 (Sp1) binding sites. Based on these observations, we hypothesized that Sp1 stimulates productive infection and transactivates key BoHV-1 promoters. DEX treatment of latently infected calves increased the number of Sp1+ TG neurons and cells in pharyngeal tonsil indicating that Sp1 expression is induced by stress. Silencing Sp1 protein expression with siRNA or mithramycin A, a drug that preferentially binds GC-rich DNA, significantly reduced BoHV-1 replication. Moreover, BoHV-1 infection of permissive cells increased Sp1 steady-state protein levels. In transient transfection studies, GR and Sp1 cooperatively transactivate IEtu1 promoter activity unless both GREs are mutated. Co-immunoprecipitation studies revealed that GR and Sp1 interact in mouse neuroblastoma cells (Neuro-2A) suggesting this interaction stimulates IEtu1 promoter activity. Collectively, these studies suggested that the cellular transcription factor Sp1 enhances productive infection and stress-induced BoHV-1 reactivation from latency.IMPORTANCEFollowing acute infection, bovine alphaherpesvirus 1 (BoHV-1) establishes lifelong latency in sensory neurons in trigeminal ganglia (TG) and pharyngeal tonsil. The synthetic corticosteroid dexamethasone consistently induces BoHV-1 reactivation from latency. The number of TG neurons and cells in pharyngeal tonsil expressing the cellular transcription factor specificity protein 1 (Sp1) protein increases during early stages of dexamethasone-induced reactivation from latency. Silencing Sp1 expression impairs BoHV-1 replication in permissive cells. Interestingly, mithramycin A, a neuroprotective antibiotic that preferentially binds GC-rich DNA, impairs Sp1 functions and reduces BoHV-1 replication suggesting that it is a potential antiviral drug. The glucocorticoid receptor (GR) and Sp1 cooperatively transactivate the BoHV-1 immediate early transcript unit 1 (IEtu1) promoter, which drives expression of infected cell protein 0 (bICP0) and bICP4. Mithramycin A also reduced Sp1- and GR-mediated transactivation of the IEtu1 promoter. These studies revealed that GR and Sp1 trigger viral gene expression and replication following stressful stimuli.
Collapse
Affiliation(s)
- Fouad S. El-mayet
- Department of Veterinary Pathobiology, Oklahoma State University, College of Veterinary Medicine, Stillwater, Oklahoma, USA
- Department of Virology, Benha University, Faculty of Veterinary Medicine, Benha, Egypt
| | - Clinton Jones
- Department of Veterinary Pathobiology, Oklahoma State University, College of Veterinary Medicine, Stillwater, Oklahoma, USA
| |
Collapse
|
15
|
Mao S, Wu L, Shi W. Calcium, phosphorus, magnesium levels in frequent respiratory tract infections. Ann Med 2024; 55:2304661. [PMID: 38233369 PMCID: PMC10798295 DOI: 10.1080/07853890.2024.2304661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/16/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND It was well documented that calcium (Ca), phosphorus (P), and magnesium (Mg) participate in many physiological processes. We aimed to study the changing trend of serum levels of Ca, P, and Mg in frequent respiratory tract infections (FRTI) in children. METHODS A retrospective study was performed in our centre. A total of 213 FRTI cases and 33 controls were enrolled in our study. We analyzed the correlation between serum Ca/P/Mg levels and inflammatory indexes by using Spearman correlation analysis. Standard mean difference (SMD) was applied to test the differences of serum Ca/P/Mg levels between FRTI subgroups and controls. In terms of the findings of SMD between Ca/P/Mg status between FRTI subgroups and controls, receiver operating characteristics (ROC) curve analysis was further applied to test the association between serum Ca level and bronchitis, parainfluenza virus infection, influenza B virus infection and cytomegalovirus infection. RESULTS Serum Ca level was significantly associated with white blood cell (WBC), platelet (PLT) and procalcitonin (PCT) (p = 0.006; p < 10-4; p = 0.004). Serum P level was markedly associated with eryhtrocyte sedimentation rate (ESR) and PCT (p = 0.018; p < 10-4). Controls showed significantly lower serum Ca level than that among bronchitis (p = 0.001), parainfluenza virus infection (p = 0.027), influenza B virus infection (p = 0.017), cytomegalovirus infection (p = 0.029), and two pathogens infected (p = 0.020). ROC curve analysis showed that serum Ca level was significantly associated with bronchitis (p = 0.047) and influenza B virus infection (p = 0.049). CONCLUSIONS Serum levels of Ca and P may reflect the inflammatory status in children with FRTI. Alteration of serum Ca level may predict the risk of bronchitis and influenza B virus infection. Keeping the homeostasis of Ca, P, and Mg may be important for the prevention and treatment of FRTI.
Collapse
Affiliation(s)
- Song Mao
- Department of Pediatrics, Shanghai Sixth People’s Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liangxia Wu
- Department of Pediatrics, Shanghai Sixth People’s Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjing Shi
- Department of Pediatrics, Shanghai Sixth People’s Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
16
|
Beros S, Pernas L. Sleeping monsters: chronic infections in COVID-19 pathogenesis. Trends Microbiol 2024; 32:10-12. [PMID: 37793974 DOI: 10.1016/j.tim.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/06/2023]
Abstract
We each harbor several chronic infections that can reactivate in response to various stressors and cause serious disease. In this forum article, we consider the reactivation of chronic microbial infections in the context of COVID-19.
Collapse
Affiliation(s)
- Sara Beros
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Lena Pernas
- Max Planck Institute for Biology of Ageing, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA, USA.
| |
Collapse
|
17
|
Hanif A, Thanos A. Retinopathy Associated With Coxsackie B Virus Infection. JAMA Ophthalmol 2024; 142:e234721. [PMID: 38236264 DOI: 10.1001/jamaophthalmol.2023.4721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
This case report describes a diagnosis of unilateral retinopathy secondary to coxsackie B virus in a male patient aged 41 years who presented with a central scotoma and blistering rash of the hands, feet, and mouth for 4 days.
Collapse
Affiliation(s)
- Adam Hanif
- Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland
| | | |
Collapse
|
18
|
Alinger JB, Mace EM, Porter JR, Mah-Som AY, Daugherty AL, Li S, Throm AA, Pingel JT, Saucier N, Yao A, Chinn IK, Lupski JR, Ehlayel M, Keller M, Bowman GR, Cooper MA, Orange JS, French AR. Human PLCG2 haploinsufficiency results in a novel natural killer cell immunodeficiency. J Allergy Clin Immunol 2024; 153:216-229. [PMID: 37714437 DOI: 10.1016/j.jaci.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Although most individuals effectively control herpesvirus infections, some suffer from severe and/or recurrent infections. A subset of these patients possess defects in natural killer (NK) cells, lymphocytes that recognize and lyse herpesvirus-infected cells; however, the genetic etiology is rarely diagnosed. PLCG2 encodes a signaling protein in NK-cell and B-cell signaling. Dominant-negative or gain-of-function variants in PLCG2 cause cold urticaria, antibody deficiency, and autoinflammation. However, loss-of-function variants and haploinsufficiency have not been reported to date. OBJECTIVES The investigators aimed to identify the genetic cause of NK-cell immunodeficiency in 2 families and herein describe the functional consequences of 2 novel loss-of-function variants in PLCG2. METHODS The investigators employed whole-exome sequencing in conjunction with mass cytometry, microscopy, functional assays, and a mouse model of PLCG2 haploinsufficiency to investigate 2 families with NK-cell immunodeficiency. RESULTS The investigators identified novel heterozygous variants in PLCG2 in 2 families with severe and/or recurrent herpesvirus infections. In vitro studies demonstrated that these variants were loss of function due to haploinsufficiency with impaired NK-cell calcium flux and cytotoxicity. In contrast to previous PLCG2 variants, B-cell function remained intact. Plcg2+/- mice also displayed impaired NK-cell function with preserved B-cell function, phenocopying human disease. CONCLUSIONS PLCG2 haploinsufficiency represents a distinct syndrome from previous variants characterized by NK-cell immunodeficiency with herpesvirus susceptibility, expanding the spectrum of PLCG2-related disease.
Collapse
Affiliation(s)
- Joshua B Alinger
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Emily M Mace
- Departments of Pediatrics, Baylor College of Medicine, Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex; Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex; Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Justin R Porter
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Mo
| | - Annelise Y Mah-Som
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Allyssa L Daugherty
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Stephanie Li
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Allison A Throm
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Jeanette T Pingel
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Nermina Saucier
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Albert Yao
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Ivan K Chinn
- Departments of Pediatrics, Baylor College of Medicine, Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex; Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex
| | - James R Lupski
- Departments of Molecular and Human Genetics, Baylor College of Medicine, Texas Children's Hospital, Houston, Tex
| | | | | | - Greg R Bowman
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Mo
| | - Megan A Cooper
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo
| | - Jordan S Orange
- Departments of Pediatrics, Baylor College of Medicine, Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex; Center for Human Immunobiology, Texas Children's Hospital, Houston, Tex; Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Anthony R French
- Division of Rheumatology, Department of Pediatrics, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Mo.
| |
Collapse
|
19
|
Schütz M, Cordsmeier A, Wangen C, Horn AHC, Wyler E, Ensser A, Sticht H, Marschall M. The Interactive Complex between Cytomegalovirus Kinase vCDK/pUL97 and Host Factors CDK7-Cyclin H Determines Individual Patterns of Transcription in Infected Cells. Int J Mol Sci 2023; 24:17421. [PMID: 38139252 PMCID: PMC10744309 DOI: 10.3390/ijms242417421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/06/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
The infection of human cytomegalovirus (HCMV) is strongly determined by the host-cell interaction in a way that the efficiency of HCMV lytic replication is dependent on the regulatory interplay between viral and cellular proteins. In particular, the activities of protein kinases, such as cyclin-dependent kinases (CDKs) and the viral CDK ortholog (vCDK/pUL97), play an important role in both viral reproduction and virus-host interaction. Very recently, we reported on the complexes formed between vCDK/pUL97, human cyclin H, and CDK7. Major hallmarks of this interplay are the interaction between cyclin H and vCDK/pUL97, which is consistently detectable across various conditions and host cell types of infection, the decrease or increase in pUL97 kinase activity resulting from cyclin H knock-down or elevated levels, respectively, and significant trans-stimulation of human CDK7 activity by pUL97 in vitro. Due to the fact that even a ternary complex of vCDK/pUL97-cyclin H-CDK7 can be detected by coimmunoprecipitation and visualized by bioinformatic structural modeling, we postulated a putative impact of the respective kinase activities on the patterns of transcription in HCMV-infected cells. Here, we undertook a first vCDK/pUL97-specific transcriptomic analysis, which combined conditions of fully lytic HCMV replication with those under specific vCDK/pUL97 or CDK7 drug-mediated inhibition or transient cyclin H knockout. The novel results were further strengthened using bioinformatic modeling of the involved multi-protein complexes. Our data underline the importance of these kinase activities for the C-terminal domain (CTD) phosphorylation-driven activation of host RNA polymerase in HCMV-infected cells. The impact of the individual experimental conditions on differentially expressed gene profiles is described in detail and discussed.
Collapse
Affiliation(s)
- Martin Schütz
- Institute for Clinical and Molecular Virology, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Arne Cordsmeier
- Institute for Clinical and Molecular Virology, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Christina Wangen
- Institute for Clinical and Molecular Virology, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Anselm H. C. Horn
- Division of Bioinformatics, Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Emanuel Wyler
- Max-Delbrück-Center for Molecular Medicine (MDC), 13125 Berlin, Germany
| | - Armin Ensser
- Institute for Clinical and Molecular Virology, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Heinrich Sticht
- Division of Bioinformatics, Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Manfred Marschall
- Institute for Clinical and Molecular Virology, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| |
Collapse
|
20
|
Burgess HM, Grande R, Riccio S, Dinesh I, Winkler GS, Depledge DP, Mohr I. CCR4-NOT differentially controls host versus virus poly(a)-tail length and regulates HCMV infection. EMBO Rep 2023; 24:e56327. [PMID: 37846490 PMCID: PMC10702830 DOI: 10.15252/embr.202256327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/18/2023] Open
Abstract
Unlike most RNA and DNA viruses that broadly stimulate mRNA decay and interfere with host gene expression, human cytomegalovirus (HCMV) extensively remodels the host translatome without producing an mRNA decay enzyme. By performing a targeted loss-of-function screen in primary human fibroblasts, we here identify the host CCR4-NOT deadenylase complex members CNOT1 and CNOT3 as unexpected pro-viral host factors that selectively regulate HCMV reproduction. We find that the scaffold subunit CNOT1 is specifically required for late viral gene expression and genome-wide host responses in CCR4-NOT-disrupted cells. By profiling poly(A)-tail lengths of individual HCMV and host mRNAs using nanopore direct RNA sequencing, we reveal poly(A)-tails of viral messages to be markedly longer than those of cellular mRNAs and significantly less sensitive to CCR4-NOT disruption. Our data establish that mRNA deadenylation by host CCR4-NOT is critical for productive HCMV replication and define a new mechanism whereby herpesvirus infection subverts cellular mRNA metabolism to remodel the gene expression landscape of the infected cell. Moreover, we expose an unanticipated host factor with potential to become a therapeutic anti-HCMV target.
Collapse
Affiliation(s)
- Hannah M Burgess
- Department of Microbial SciencesUniversity of SurreyGuildfordUK
- Department of Microbiology, School of MedicineNew York UniversityNew YorkNYUSA
| | - Rebecca Grande
- Department of Microbiology, School of MedicineNew York UniversityNew YorkNYUSA
| | - Sofia Riccio
- Department of Microbial SciencesUniversity of SurreyGuildfordUK
| | - Ikshitaa Dinesh
- Department of Microbial SciencesUniversity of SurreyGuildfordUK
| | | | - Daniel P Depledge
- Department of Microbiology, School of MedicineNew York UniversityNew YorkNYUSA
- Institute of VirologyHannover Medical SchoolHannoverGermany
- German Center for Infection Research (DZIF), partner site Hannover‐BraunschweigHannoverGermany
| | - Ian Mohr
- Department of Microbiology, School of MedicineNew York UniversityNew YorkNYUSA
- Laura and Isaac Perlmutter Cancer Institute, School of MedicineNew York UniversityNew YorkNYUSA
| |
Collapse
|
21
|
Zhou YP, Li P, Zhang Y, Wang XZ, Yang B, Mei MJ, Chen S, Cheng H, Zhang W, Luo MH. A case of congenital human cytomegalovirus infection with placental and pulmonary calcification despite presence of intrauterine IgG. J Med Virol 2023; 95:e29327. [PMID: 38112155 DOI: 10.1002/jmv.29327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023]
Affiliation(s)
- Yue-Peng Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
| | - Ping Li
- Xiangya Hospital, Central South University, Changsha, China
| | - Youming Zhang
- Xiangya Hospital, Central South University, Changsha, China
| | - Xian-Zhang Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Bo Yang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Meng-Jie Mei
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shizhen Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
| | - Han Cheng
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Weishe Zhang
- Xiangya Hospital, Central South University, Changsha, China
| | - Min-Hua Luo
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| |
Collapse
|
22
|
Gupta A, Lawrence SM, Fraley SI. A broad-based probe-free qPCR assay for detection and discrimination of three human herpes viruses. J Virol Methods 2023; 322:114824. [PMID: 37778538 DOI: 10.1016/j.jviromet.2023.114824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/04/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
Primary infection or reactivation of latent human cytomegalovirus (HCMV) or herpes simplex viruses (HSV) 1 or 2 during pregnancy can transmit the virus in utero or during natural childbirth to the fetus. The majority of these infections are asymptomatic at birth but may present later with potentially lethal disseminated infection or meningitis (HSV), or long-term neurodevelopmental sequelae including sensorineural hearing loss or neurodevelopmental impairments (HCMV). Unfortunately, early signs and symptoms of disseminated viral infections may be misdiagnosed as bacterial sepsis. Therefore, immediate testing for viral etiologies may not be ordered or even considered by skilled clinicians. In asymptomatic HCMV infections, early detection is necessary to monitor for and treat future neurologic sequelae. In acutely ill-appearing infants, specific detection of viruses against other disease-causing agents is vital to inform correct patient management, including early administration of the correct antimicrobial(s). An ideal test should be rapid, inexpensive, require low sample volumes, and demonstrate efficacy in multiple tissue matrices to aid in timely clinical decision-making for neonatal infections. This work discusses the development of a rapid probe-free qPCR assay for HSV and HCMV that enables early and specific detection of these viruses in neonates. The assay's probe free chemistry would allow easier extension to a broad-based multiplexed pathogenic panel as compared to assays utilizing sequence-specific probes or nested PCR.
Collapse
Affiliation(s)
- Anshu Gupta
- Jacobs School of Engineering, Department of Bioengineering, University of California San Diego, La Jolla, CA, USA
| | - Shelley M Lawrence
- Department of Pediatrics, Division of Neonatology, University of Utah, Salt Lake City, UT, USA.
| | - Stephanie I Fraley
- Jacobs School of Engineering, Department of Bioengineering, University of California San Diego, La Jolla, CA, USA.
| |
Collapse
|
23
|
Lee SC, Naik NG, Tombácz D, Gulyás G, Kakuk B, Boldogkői Z, Hall K, Papp B, Boulant S, Toth Z. Hypoxia and HIF-1α promote lytic de novo KSHV infection. J Virol 2023; 97:e0097223. [PMID: 37909728 PMCID: PMC10688315 DOI: 10.1128/jvi.00972-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023] Open
Abstract
IMPORTANCE The current view is that the default pathway of Kaposi's sarcoma-associated herpesvirus (KSHV) infection is the establishment of latency, which is a prerequisite for lifelong infection and viral oncogenesis. This view about KSHV infection is supported by the observations that KSHV latently infects most of the cell lines cultured in vitro in the absence of any environmental stresses that may occur in vivo. The goal of this study was to determine the effect of hypoxia, a natural stress stimulus, on primary KSHV infection. Our data indicate that hypoxia promotes euchromatin formation on the KSHV genome following infection and supports lytic de novo KSHV infection. We also discovered that hypoxia-inducible factor-1α is required and sufficient for allowing lytic KSHV infection. Based on our results, we propose that hypoxia promotes lytic de novo infection in cells that otherwise support latent infection under normoxia; that is, the environmental conditions can determine the outcome of KSHV primary infection.
Collapse
Affiliation(s)
- See-Chi Lee
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Nenavath Gopal Naik
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Dóra Tombácz
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Gábor Gulyás
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Balázs Kakuk
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Zsolt Boldogkői
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Kevin Hall
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Bernadett Papp
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
- UF Genetics Institute, Gainesville, Florida, USA
- UF Health Cancer Center, Gainesville, Florida, USA
- UF Center for Orphaned Autoimmune Disorders, Gainesville, Florida, USA
- UF Informatics Institute, Gainesville, Florida, USA
| | - Steeve Boulant
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Zsolt Toth
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
- UF Genetics Institute, Gainesville, Florida, USA
- UF Health Cancer Center, Gainesville, Florida, USA
| |
Collapse
|
24
|
Lu J, Long Y, Sun J, Gong L. Towards a comprehensive view of the herpes B virus. Front Immunol 2023; 14:1281384. [PMID: 38035092 PMCID: PMC10687423 DOI: 10.3389/fimmu.2023.1281384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
Herpes B virus is a biosafety level 4 pathogen and widespread in its natural host species, macaques. Although most infected monkeys show asymptomatic or mild symptoms, human infections with this virus can cause serious neurological symptoms or fatal encephalomyelitis with a high mortality rate. Herpes B virus can be latent in the sensory ganglia of monkeys and humans, often leading to missed diagnoses. Furthermore, the herpes B virus has extensive antigen crossover with HSV, SA8, and HVP-2, causing false-positive results frequently. Timely diagnosis, along with methods with sensitivity and specificity, are urgent for research on the herpes B virus. The lack of a clear understanding of the host invasion and life cycle of the herpes B virus has led to slow progress in the development of effective vaccines and drugs. This review discusses the research progress and problems of the epidemiology of herpes B virus, detection methods and therapy, hoping to inspire further investigation into important factors associated with transmission of herpes B virus in macaques and humans, and arouse the development of effective vaccines or drugs, to promote the establishment of specific pathogen-free (SPF) monkeys and protect humans to effectively avoid herpes B virus infection.
Collapse
Affiliation(s)
- Jiangling Lu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| | - Yiru Long
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jianhua Sun
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| | - Likun Gong
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| |
Collapse
|
25
|
Holt EA, Waytashek CM, Sessions KJ, Asarian L, Lahue KG, Usherwood EJ, Teuscher C, Krementsov DN. Host Genetic Variation Has a Profound Impact on Immune Responses Mediating Control of Viral Load in Chronic Gammaherpesvirus Infection. J Immunol 2023; 211:1526-1539. [PMID: 37819784 PMCID: PMC10841120 DOI: 10.4049/jimmunol.2300294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023]
Abstract
Chronic infection with the gammaherpesvirus EBV is a risk factor for several autoimmune diseases, and poor control of EBV viral load and enhanced anti-EBV responses elevate this risk further. However, the role of host genetic variation in the regulation of immune responses to chronic gammaherpesvirus infection and control of viral replication remains unclear. To address this question, we infected C57BL/6J (B6) and genetically divergent wild-derived inbred PWD/PhJ (PWD) mice with murine gammaherpesvirus-68 (MHV-68), a gammaherpesvirus similar to EBV, and determined the effect of latent gammaherpesvirus infection on the CD4 T cell transcriptome. Chronic MHV-68 infection of B6 mice resulted in a dramatic upregulation of genes characteristic of a cytotoxic Th cell phenotype, including Gzmb, Cx3cr1, Klrg1, and Nkg7, a response that was highly muted in PWD mice. Flow cytometric analyses revealed an expansion of CX3CR1+KLRG1+ cytotoxic Th cell-like cells in B6 but not PWD mice. Analysis of MHV-68 replication demonstrated that in spite of muted adaptive responses, PWD mice had superior control of viral load in lymphoid tissue, despite an absence of a defect in MHV-68 in vitro replication in PWD macrophages. Depletion of NK cells in PWD mice, but not B6 mice, resulted in elevated viral load, suggesting genotype-dependent NK cell involvement in MHV-68 control. Taken together, our findings demonstrate that host genetic variation can regulate control of gammaherpesvirus replication through disparate immunological mechanisms, resulting in divergent long-term immunological sequelae during chronic infection.
Collapse
Affiliation(s)
- Emily A. Holt
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Courtney M. Waytashek
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Katherine J. Sessions
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Loredana Asarian
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, Larner College of Medicine, The University of Vermont, Burlington, VT 05405, USA
| | - Karolyn G Lahue
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Edward J. Usherwood
- Department of Microbiology and Immunology, The Geisel School of Medicine at Dartmouth College, Lebanon, NH 03756, USA
| | - Cory Teuscher
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, Larner College of Medicine, The University of Vermont, Burlington, VT 05405, USA
| | - Dimitry N. Krementsov
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| |
Collapse
|
26
|
Jiang X, Ren W, Tian L, Ge Y, Li C, Hu X, Shi L, Jia Z. IRF9 inhibits CyHV-3 replication by regulating the PI3K-AKT signalling pathway in common carp (Cyprinus carpio) epithelial cells. Dev Comp Immunol 2023; 148:104905. [PMID: 37549834 DOI: 10.1016/j.dci.2023.104905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/27/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Interferon regulatory factor 9 (IRF9) is an important transcriptional regulator involved in innate and adaptive immunity. Cyprinid herpesvirus-3 (CyHV-3) is a virus causing widespread death and great economic loss in farmed common carp (Cyprinus carpio). However, the effect of IRF9 on CyHV-3 infection in common carp has not been reported. In this study, during CyHV-3 infection, IRF9 overexpression in common carp fin epithelial (CCF) cells significantly reduced the expression of viral factor thymidine kinase (TK) and open reading frame 72 (ORF72), and knockdown of IRF9 produced the opposite results (p < 0.05). In CCF cells. The IRF9 protein was expression in the nucleus and was rapidly induced in CCF cells by CyHV-3 infection. In addition, several genes associated with virus infection, including type I interferon (IFNI), IFN-stimulated gene 15 (ISG15), myxovirus resistance 1 (Mx1) and Viperin were induced in CCF cells overexpressing IRF9 upon CyHV-3 infection. IRF9 overexpression induced by CyHV-3 infection significantly increased the gene expression of Mx1 and phosphoinositide 3-kinase (PI3K) and the protein expression of protein kinase B (AKT) (p < 0.01). Interestingly, IRF9 did not significantly affect Mx1 gene expression when AKT protein levels remained unchanged during CyHV-3 infection of CCF cells. Furthermore, a significant resistance-related locus was found in the IRF9 sequence in "Longke-11" mirror carp (M11) and Yellow River carp (p < 0.05). These results indicated that IRF9 inhibited viral replication by upregulating the expression of Mx1 via the PI3K-AKT signalling pathway during CyHV-3 infection in CCF cells and provide some basis for the study of the antiviral molecular mechanisms of common carp.
Collapse
Affiliation(s)
- Xiaona Jiang
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Wanying Ren
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Lijing Tian
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Yanlong Ge
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Chitao Li
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Xuesong Hu
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Lianyu Shi
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Zhiying Jia
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China; Key Laboratory of Freshwater Aquatic Biotechnology and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.
| |
Collapse
|
27
|
Julius P, Kang G, Siyumbwa S, Musumali J, Tso FY, Ngalamika O, Kaile T, Maate F, Moonga P, West JT, Angeletti P, Wood C. Co-infection and co-localization of Kaposi sarcoma-associated herpesvirus and Epstein-Barr virus in HIV-associated Kaposi sarcoma: a case report. Front Cell Infect Microbiol 2023; 13:1270935. [PMID: 37928187 PMCID: PMC10623342 DOI: 10.3389/fcimb.2023.1270935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/04/2023] [Indexed: 11/07/2023] Open
Abstract
Kaposi sarcoma (KS), a multifocal vascular neoplasm frequently observed in HIV-positive individuals, primarily affects the skin, mucous membranes, visceral organs, and lymph nodes. KS is associated primarily with Kaposi sarcoma-associated herpesvirus (KSHV) infection. In this case report, we present a rare occurrence of co-infection and co-localization of KSHV and Epstein-Barr virus (EBV) in KS arising from the conjunctiva, which, to our knowledge, has not been reported previously. Immunohistochemistry (IHC), DNA polymerase chain reaction (PCR), and EBV-encoded RNA in situ hybridization (EBER-ISH) were utilized to demonstrate the presence of KSHV and EBV infection in the ocular KS lesion. Nearly all KSHV-positive cells displayed co-infection with EBV. In addition, the KS lesion revealed co-localization of KSHV Latency-Associated Nuclear Antigen (LANA) and EBV Epstein Barr virus Nuclear Antigen-1 (EBNA1) by multi-colored immunofluorescence staining with different anti-EBNA1 antibodies, indicating the possibility of interactions between these two gamma herpesviruses within the same lesion. Additional study is needed to determine whether EBV co-infection in KS is a common or an opportunistic event that might contribute to KS development and progression.
Collapse
Affiliation(s)
- Peter Julius
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Guobin Kang
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Stepfanie Siyumbwa
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Jane Musumali
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Owen Ngalamika
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Trevor Kaile
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Fred Maate
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Phyllis Moonga
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - John T. West
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Peter Angeletti
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Charles Wood
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| |
Collapse
|
28
|
Lawton K, Runk D, Hankin S, Mendonsa E, Hull D, Barnum S, Pusterla N. Detection of Selected Equine Respiratory Pathogens in Stall Samples Collected at a Multi-Week Equestrian Show during the Winter Months. Viruses 2023; 15:2078. [PMID: 37896855 PMCID: PMC10612055 DOI: 10.3390/v15102078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/02/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this study was to use environmental sampling to determine the frequency of detection of selected equine respiratory viruses and bacteria in horses attending a multi-week equestrian show during the winter months. At four time points during showing, environmental sponge samples were collected from all stalls on the property and tested for the presence of equine herpesvirus-1 (EHV-1), EHV-2, EHV-4, equine influenza virus (EIV), equine rhinitis B virus (ERBV), Streptococcus equi ss. equi (S. equi), and S. equi ss. zooepidemicus (S. zooepidemicus) using real-time PCR (PCR). Environmental sponges were collected from all 53 barns by using one sponge for up to 10 stalls. Further, 2/53 barns were randomly selected for individual stall sampling in order to compare the results between individual and pooled stall samples. A total of 333/948 (35.13%, 95% CI 32.09-38.26%) pooled environmental stall sponges tested PCR-positive for at least one of the selected respiratory pathogens. Streptococcus zooepidemicus was the most commonly detected pathogen in pooled samples (28.69%, 95% CI 25.83-31.69%), followed by EHV-2 (14.45%, 95% CI 12.27-16.85%), EHV-4 (1.37%, 95% CI 0.73-2.33%), and a very small percentage of pooled stall sponges tested PCR-positive for EHV-1, ERBV, EIV, and S. equi. In individual samples, 171/464 (36.85%, 95% CI 32.45-41.42%) environmental stall sponges tested PCR-positive for at least one of the selected pathogens, following a similar frequency of pathogen detection as pooled samples. The detection frequency of true respiratory pathogens from environmental samples was higher during the winter months compared to previous studies performed during spring and summer, and this testing highlights that such pathogens circulate with greater frequency during the colder months of the year. The strategy of monitoring environmental stall samples for respiratory pathogens circumvents the often labor-intensive collection of respiratory secretions from healthy horses and allows for a more efficient assessment of pathogen buildup over time. However, environmental stall testing for respiratory pathogens should not replace proper biosecurity protocols, but it should instead be considered as an additional tool to monitor the silent circulation of respiratory pathogens in at-risk horses.
Collapse
Affiliation(s)
- Kaila Lawton
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (K.L.); (S.B.)
| | - David Runk
- Desert International Horse Park, Thermal, CA 92274, USA; (D.R.); (S.H.)
| | - Steve Hankin
- Desert International Horse Park, Thermal, CA 92274, USA; (D.R.); (S.H.)
| | | | - Dale Hull
- Fluxergy, Irvine, CA 92618, USA; (E.M.); (D.H.)
| | - Samantha Barnum
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (K.L.); (S.B.)
| | - Nicola Pusterla
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (K.L.); (S.B.)
| |
Collapse
|
29
|
Han X, Clark JJ, Sharma P, Bentley EG, Kipar A, Alsayer M, Ren X, Robinson A, Alaidarous S, Mu Y, Sun Y, Hiscox JA, Zhou EM, Stewart JP, Zhao Q. Amino acids 1811-1960 of myosin heavy chain 9 is involved in murine gammaherpesvirus 68 infection. Virology 2023; 587:109849. [PMID: 37515945 DOI: 10.1016/j.virol.2023.109849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
Myosin heavy chain 9 (MYH9) has been identified as a crucial factor in gammaherpesvirus infection. Murine gammaherpesvirus 68 (MHV-68) was used as an appropriate viral model for investigating gammaherpesviruses in vivo and developing antiviral treatments. However, the roles of MYH9 in MHV-68 infection have not been documented. In the study, the relationship between the expression of MYH9 and MHV-68 infection and MYH9 as the antiviral target were analyzed. The results revealed that MYH9 was enriched on the cell surface and co-localized with MHV-68 upon viral infection. Knocking down MYH9 with siRNA or using the specific inhibitor of MYH9 activity, Blebbistatin, resulted in the decreasing of MHV-68 infection. Furthermore, polyclonal antibodies against MYH9 reduced infection by approximately 74% at a dose of 100 μg/ml. The study determined that MYH9 contributes to MHV-68 infection by interacting with viral glycoprotein 150 (gp150) in the BHK-21 cell membrane. The specific region of MYH9, amino acids 1811-1960 (C-150), was identified as the key domain involved in the interaction with MHV-68 gp150 and was found to inhibit MHV-68 infection. Moreover, C-150 was also shown to decrease HSV-1 infection in Vero cells by approximately 73%. Both C-150 and Blebbistatin were found to inhibit MHV-68 replication and reduce histopathological lesions in vivo in C57BL/6J mice. Taken together, these findings suggested that MYH9 is crucial for MHV-68 infection through its interaction with viral gp150 and that C-150 may be a promising antiviral target for inhibiting MHV-68 infection in vitro and in vivo.
Collapse
Affiliation(s)
- Ximeng Han
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China; Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Jordan J Clark
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Parul Sharma
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Eleanor G Bentley
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Anja Kipar
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom; Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Switzerland
| | - Mohammed Alsayer
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Xiaolei Ren
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Amy Robinson
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Sondus Alaidarous
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Yang Mu
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Yani Sun
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Julian A Hiscox
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - En-Min Zhou
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China.
| | - James P Stewart
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom.
| | - Qin Zhao
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China.
| |
Collapse
|
30
|
Ivanišević V, Žilić L, Čunko M, Fadiga H, Munitić I, Jurak I. RNA Editing-Dependent and -Independent Roles of Adenosine Deaminases Acting on RNA Proteins in Herpesvirus Infection-Hints on Another Layer of Complexity. Viruses 2023; 15:2007. [PMID: 37896783 PMCID: PMC10611208 DOI: 10.3390/v15102007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/24/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The Adenosine Deaminases Acting on RNA (ADAR) catalyze the posttranscriptional deamination of adenosine residues to inosine in double-stranded RNAs (dsRNAs, A-to-I editing), preventing the overactivation of dsRNA sensor molecules and interferons. RNA editing is the cornerstone of innate immunity that distinguishes between self and non-self (virus), and it is essential for normal regulation of cellular homeostasis. Although much is already known about the role of ADAR proteins in RNA virus infection, the role of ADAR proteins in herpesvirus infection remains largely unexplored. In this review, we provide several lines of evidence from studies of different herpesviruses for another level of complexity in regulating the already intricate biphasic life cycle of herpesviruses.
Collapse
Affiliation(s)
| | | | | | | | | | - Igor Jurak
- Department of Biotechnology, University of Rijeka, 51000 Rijeka, Croatia (L.Ž.)
| |
Collapse
|
31
|
Jefferson VA, Bostick H, Oldenburg D, Meyer F. Evidence of a Protein-Coding Gene Antisense to the U L5 Gene in Bovine Herpesvirus I. Viruses 2023; 15:1977. [PMID: 37896756 PMCID: PMC10610667 DOI: 10.3390/v15101977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
Bovine herpesvirus type 1 (BoHV-1) is an important agricultural pathogen that infects cattle and other ruminants worldwide. Though it was first sequenced and annotated over twenty years ago, the Cooper strain, used in this study, was sequenced as recently as 2012 and is currently said to encode 72 unique proteins. However, tandem mass spectrometry has identified several peptides produced during active infection that align with the BoHV-1 genome in unannotated regions. One of these abundant peptides, "ORF M", aligned antisense to the DNA helicase/primase protein UL5. This study characterizes the novel transcript and its protein product and provides evidence to support the existence of homolog protein-coding genes in other Herpesviruses.
Collapse
Affiliation(s)
- Victoria A. Jefferson
- Department of Biochemistry, Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 32 Creelman St., Starkville, MS 39762, USA; (V.A.J.); (H.B.)
| | - Hannah Bostick
- Department of Biochemistry, Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 32 Creelman St., Starkville, MS 39762, USA; (V.A.J.); (H.B.)
| | - Darby Oldenburg
- Gundersen Medical Foundation, 1900 South Ave., La Crosse, WI 54601, USA;
| | - Florencia Meyer
- Department of Biochemistry, Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 32 Creelman St., Starkville, MS 39762, USA; (V.A.J.); (H.B.)
| |
Collapse
|
32
|
Yadavalli T, Singh SK, Date AA, Shukla D. Tolerability, pharmacokinetics, and anti-herpetic activity of orally administered BX795. Biomed Pharmacother 2023; 165:115056. [PMID: 37406507 DOI: 10.1016/j.biopha.2023.115056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/07/2023] [Accepted: 06/21/2023] [Indexed: 07/07/2023] Open
Abstract
Herpes simplex viruses type-1 (HSV-1) and type-2 (HSV-2) are ubiquitous human pathogens causing serious pathologies in the ocular, orofacial and anogenital regions. While current treatments such as nucleoside analogs are effective in most cases, the emergence of drug resistance necessitates the development of newer antivirals with different mechanisms of action. In this regard, BX795, a small molecule inhibitor has shown significant benefit in the treatment of herpesvirus infections previously when dosed topically. However, the efficacy of BX795's systemic dosage remains to be tested. In this study, we evaluated acute and short-term toxicity of orally administered BX795 at a concentration of 400 and 100 mg/kg respectively in mice. This was followed by an evaluation of pharmacokinetics and tissue distribution of BX795 on intravenous and oral administration. Based on these studies, we performed an in vivo antiviral study using murine models of ocular HSV-1 and genital HSV-2 infection. Our results indicate that orally administered BX795 is very well tolerated, had oral bioavailability of 56%, and reached ocular and genital tissues within the first 15 min of dosing. Our studies indicate that BX795 administered orally can significantly reduce herpesvirus replication in the ocular and genital tissue.
Collapse
Affiliation(s)
- Tejabhiram Yadavalli
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Sudhanshu Kumar Singh
- Department of Ophthalmology and Visual Sciences, Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, USA.
| | - Abhijit A Date
- Department of Pharmacology and Toxicology, Department of Ophthalmology and Vision Science, BIO5 Institute, The University of Arizona, Tucson, AZ, USA.
| | - Deepak Shukla
- Department of Ophthalmology and Visual Sciences, Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, USA.
| |
Collapse
|
33
|
Fanunza E, Cheng AZ, Auerbach AA, Stefanovska B, Moraes SN, Lokensgard JR, Biolatti M, Dell'Oste V, Bierle CJ, Bresnahan WA, Harris RS. Human cytomegalovirus mediates APOBEC3B relocalization early during infection through a ribonucleotide reductase-independent mechanism. J Virol 2023; 97:e0078123. [PMID: 37565748 PMCID: PMC10506462 DOI: 10.1128/jvi.00781-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 06/21/2023] [Indexed: 08/12/2023] Open
Abstract
The APOBEC3 family of DNA cytosine deaminases comprises an important arm of the innate antiviral defense system. The gamma-herpesviruses Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus and the alpha-herpesviruses herpes simplex virus (HSV)-1 and HSV-2 have evolved an efficient mechanism to avoid APOBEC3 restriction by directly binding to APOBEC3B and facilitating its exclusion from the nuclear compartment. The only viral protein required for APOBEC3B relocalization is the large subunit of the ribonucleotide reductase (RNR). Here, we ask whether this APOBEC3B relocalization mechanism is conserved with the beta-herpesvirus human cytomegalovirus (HCMV). Although HCMV infection causes APOBEC3B relocalization from the nucleus to the cytoplasm in multiple cell types, the viral RNR (UL45) is not required. APOBEC3B relocalization occurs rapidly following infection suggesting the involvement of an immediate early or early (IE/E) viral protein. In support of this possibility, genetic (IE1 mutant) and pharmacologic (cycloheximide) strategies that prevent the expression of IE/E viral proteins also block APOBEC3B relocalization. In comparison, the treatment of infected cells with phosphonoacetic acid, which interferes with viral late protein expression, still permits A3B relocalization. These results combine to indicate that the beta-herpesvirus HCMV uses an RNR-independent, yet phenotypically similar, molecular mechanism to antagonize APOBEC3B. IMPORTANCE Human cytomegalovirus (HCMV) infections can range from asymptomatic to severe, particularly in neonates and immunocompromised patients. HCMV has evolved strategies to overcome host-encoded antiviral defenses to achieve lytic viral DNA replication and dissemination and, under some conditions, latency and long-term persistence. Here, we show that HCMV infection causes the antiviral factor, APOBEC3B, to relocalize from the nuclear compartment to the cytoplasm. This overall strategy resembles that used by related herpesviruses. However, the HCMV relocalization mechanism utilizes a different viral factor(s) and available evidence suggests the involvement of at least one protein expressed at the early stages of infection. This knowledge is important because a greater understanding of this mechanism could lead to novel antiviral strategies that enable APOBEC3B to naturally restrict HCMV infection.
Collapse
Affiliation(s)
- Elisa Fanunza
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, USA
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Cagilari, Italy
| | - Adam Z. Cheng
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Ashley A. Auerbach
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, USA
| | - Bojana Stefanovska
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, USA
- Howard Hughes Medical Institute, University of Texas Health San Antonio, San Antonio, Texas, USA
| | - Sofia N. Moraes
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - James R. Lokensgard
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Matteo Biolatti
- Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Valentina Dell'Oste
- Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Craig J. Bierle
- Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Wade A. Bresnahan
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Reuben S. Harris
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, USA
- Howard Hughes Medical Institute, University of Texas Health San Antonio, San Antonio, Texas, USA
| |
Collapse
|
34
|
Li C, Wang M, Cheng A, Wu Y, Tian B, Yang Q, Gao Q, Sun D, Zhang S, Ou X, He Y, Huang J, Zhao X, Chen S, Zhu D, Liu M, Jia R. N-Linked Glycosylation and Expression of Duck Plague Virus pUL10 Promoted by pUL49.5. Microbiol Spectr 2023; 11:e0162523. [PMID: 37378543 PMCID: PMC10434065 DOI: 10.1128/spectrum.01625-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Duck plague virus (DPV) is a member of the alphaherpesvirus subfamily, and its genome encodes a conserved envelope protein, protein UL10 (pUL10). pUL10 plays complex roles in viral fusion, assembly, cell-to-cell spread, and immune evasion, which are closely related to its protein characteristics and partners. Few studies have been conducted on DPV pUL10. In this study, we identified the characteristics of pUL10, such as the type of glycosylation modification and subcellular localization. The characteristic differences in pUL10 in transfection and infection suggest that there are other viral proteins that participate in pUL10 modification and localization. Therefore, pUL49.5, the interaction partner of pUL10, was explored. We found that pUL10 interacts with pUL49.5 during transfection and infection. Their interaction entailed multiple interaction sites, including noncovalent forces in the pUL49.5 N-terminal domains and C-terminal domains and a covalent disulfide bond between two conserved cysteines. pUL49.5 promoted pUL10 expression and mature N-linked glycosylation modification. Moreover, deletion of UL49.5 in DPV caused the molecular mass of pUL10 to decrease by approximately3 to 10 kDa, which suggested that pUL49.5 was the main factor affecting the N-linked glycosylation of DPV pUL10 during infection. This study provides a basis for future exploration of the effect of pUL10 glycosylation on virus proliferation. IMPORTANCE Duck plague is a disease with high morbidity and mortality rates, and it causes great losses for the duck breeding industry. Duck plague virus (DPV) is the causative agent of duck plague, and DPV UL10 protein (pUL10) is a homolog of glycoprotein M (gM), which is conserved in herpesviruses. pUL10 plays complex roles in viral fusion, assembly, cell-to-cell spread, and immune evasion, which are closely related to its protein characteristics and partners. In this study, we systematically explored whether pUL49.5 (a partner of pUL10) plays roles in the localization, modification, and expression of pUL10.
Collapse
Affiliation(s)
- Chunmei Li
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Mingshu Wang
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Anchun Cheng
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Ying Wu
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Bin Tian
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Qiao Yang
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Qun Gao
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Di Sun
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Shaqiu Zhang
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Xumin Ou
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Yu He
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Juan Huang
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Xinxin Zhao
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Shun Chen
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Dekang Zhu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Mafeng Liu
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| | - Renyong Jia
- Institute of Veterinary Medicine and Immunology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan, China
- Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the People's Republic of China, Chengdu City, Sichuan, China
| |
Collapse
|
35
|
Liu C, Lin J, Yang H, Li N, Tang L, Neumann D, Ding X, Zhu L. NFAT5 Restricts Bovine Herpesvirus 1 Productive Infection in MDBK Cell Cultures. Microbiol Spectr 2023; 11:e0011723. [PMID: 37227295 PMCID: PMC10434061 DOI: 10.1128/spectrum.00117-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/04/2023] [Indexed: 05/26/2023] Open
Abstract
Bovine herpesvirus 1 (BoHV-1), an important bovine viral pathogen, causes severe disease in the upper respiratory tract and reproductive system. Tonicity-responsive enhancer-binding protein (TonEBP), also known as nuclear factor of activated T cells 5 (NFAT5), is a pleiotropic stress protein involved in a range of cellular processes. In this study, we showed that the knockdown of NFAT5 by siRNA increased BoHV-1 productive infection and overexpression of NFAT5 via plasmid transfection decreased virus production in bovine kidney (MDBK) cells. Virus productive infection at later stages significantly increased transcription of NFAT5 but not appreciably alter measurable NFAT5 protein levels. Virus infection relocalized NFAT5 protein and decreased the cytosol accumulation. Importantly, we found a subset of NFAT5 resides in mitochondria, and virus infection led to the depletion of mitochondrial NFAT5. In addition to full-length NFAT5, another two isoforms with distinct molecular weights were exclusively detected in the nucleus, where the accumulation was differentially affected following virus infection. In addition, virus infection differentially altered mRNA levels of PGK1, SMIT, and BGT-1, the canonical downstream targets regulated by NFAT5. Taken together, NFAT5 is a potential host factor that restricts BoHV-1 productive infection, and virus infection hijacks NFAT5 signaling transduction by relocalization of NFAT5 molecules in cytoplasm, nucleus, and mitochondria, as well as altered expression of its downstream targets. IMPORTANCE Accumulating studies have revealed that NFAT5 regulates disease development due to infection of numerous viruses, underlying the importance of the host factor in virus pathogenesis. Here, we report that NFAT5 has capacity to restrict BoHV-1 productive infection in vitro. And virus productive infection at later stages may alter NFAT5 signaling pathway as observed by relocalization of NFAT5 protein, reduced accumulation of NFAT5 in cytosol, and differential expression of NFAT5 downstream targets. Importantly, for the first time, we found that a subset of NFAT5 resides in mitochondria, implying that NFAT5 may regulate mitochondrial functions, which will extend our knowledge on NFAT5 biological activities. Moreover, we found two NFAT5 isoforms with distinct molecular weights were exclusively detected in the nucleus, where the accumulation was differentially affected following virus infection, representing a novel regulation mechanism on NFAT5 function in response to BoHV-1infection.
Collapse
Affiliation(s)
- Chang Liu
- College of Life Sciences, Hebei University, Baoding, China
| | - Jiayu Lin
- College of Life Sciences, Hebei University, Baoding, China
| | - Hao Yang
- College of Life Sciences, Hebei University, Baoding, China
| | - Ningxi Li
- College of Life Sciences, Hebei University, Baoding, China
| | - Linke Tang
- College of Life Sciences, Hebei University, Baoding, China
| | - Donna Neumann
- Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Xiuyan Ding
- College of Life Sciences, Hebei University, Baoding, China
| | - Liqian Zhu
- College of Life Sciences, Hebei University, Baoding, China
- Key Laboratory of Microbial Diversity Research and Application of Hebei Province, College of Life Science, Hebei University, Baoding, China
| |
Collapse
|
36
|
Shafiee A, Amini MJ, Arabzadeh Bahri R, Jafarabady K, Salehi SA, Hajishah H, Mozhgani SH. Herpesviruses reactivation following COVID-19 vaccination: a systematic review and meta-analysis. Eur J Med Res 2023; 28:278. [PMID: 37559096 PMCID: PMC10413536 DOI: 10.1186/s40001-023-01238-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 07/19/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND The reactivation of herpesviruses (HHV) in COVID-19 patients is evident in the literature. Several reports have been published regarding the reactivation of these viruses (HSV, VZV, EBV, and CMV) among those who got COVID-19 vaccines. In this study, we aimed to review the current evidence to assess whether HHVs reactivation has any association with the prior administration of COVID-19 vaccines. METHODS A systematic search was conducted on 25 September 2022 in PubMed/MEDLINE, Web of Science, and EMBASE. We included all observational studies, case reports, and case series which reported the reactivation of human herpesviruses following administration of COVID-19 vaccines. RESULTS Our systematic search showed 80 articles that meet the eligibility criteria. Among the evaluated COVID-19 vaccines, most of the vaccines were mRNA based. Evidence from observational studies showed the possible relation between COVID-19 vaccine administration and VZV and HSV reactivation. The results of our proportion meta-analysis showed that the rate of VZV reactivation among those who received the COVID-19 vaccine was 14 persons per 1000 vaccinations (95% CI 2.97-32.80). Moreover, our meta-analysis for HSV reactivation showed the rate of 16 persons per 1000 vaccinations (95% CI 1.06-46.4). Furthermore, the evidence from case reports/series showed 149 cases of HHV reactivation. There were several vaccines that caused reactivation including BNT162b2 mRNA or Pfizer-BioNTech (n = 76), Oxford-AstraZeneca (n = 22), mRNA-1273 or Moderna (n = 17), Sinovac (n = 4), BBIBP-CorV or Sinopharm (n = 3), Covaxin (n = 3), Covishield (n = 3), and Johnson and Johnson (n = 1). Reactivated HHVs included varicella-zoster virus (VZV) (n = 114), cytomegalovirus (CMV) (n = 15), herpes simplex virus (HSV) (n = 14), Epstein-Barr virus (EBV) (n = 6), and HHV-6 (n = 2). Most cases reported their disease after the first dose of the vaccine. Many patients reported having comorbidities, of which hypertension, diabetes mellitus, dyslipidemia, chicken pox, and atrial fibrillation were common. CONCLUSION In conclusion, our study showed the possible association between COVID-19 vaccination and herpesvirus reactivation. The evidence for VZV and HSV was supported by observational studies. However, regarding other herpesviruses (EBV and CMV), further research especially from observational studies and clinical trials is required to elucidate the interaction between COVID-19 vaccination and their reactivation.
Collapse
Affiliation(s)
- Arman Shafiee
- Clinical Research Development Unit, Alborz University of Medical Sciences, Karaj, Iran
- Student Research Committee, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Mohammad Javad Amini
- Student Research Committee, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Kyana Jafarabady
- Student Research Committee, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Seyyed Amirhossein Salehi
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Hajishah
- Student Research Committee, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Sayed-Hamidreza Mozhgani
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
- Non-Communicable Diseases Research Center, Alborz University of Medical, Sciences, Karaj, Iran
| |
Collapse
|
37
|
Steer B, Adler B, Adler H. Open reading frames M12/M13 jointly contribute to MHV-68 latency. J Gen Virol 2023; 104. [PMID: 37552062 DOI: 10.1099/jgv.0.001880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
Abstract
Murine gammaherpesvirus 68 (MHV-68), a widely used small-animal model for the analysis of gammaherpesvirus pathogenesis, encodes the MHV-68-specific ORFs M12 and M13. The function of M12 and M13 has not been investigated so far. Therefore, we constructed and analysed recombinant MHV-68 with mutations in either M12, M13 or M12/M13. Both the M12 and M13 mutants did not display any phenotype in vitro or in vivo. However, although the M12/13 double mutant showed similar lytic growth in fibroblasts in vitro and in the lungs of infected mice as wild-type MHV-68, it was significantly attenuated in vivo during latency. This phenotype was completely restored in a revertant of the M12/13 double mutant. Thus, it appears that M12 and M13 might have redundant functions that are only revealed if both genes are lacking. The observation that M12/13 have a function during latency not only contributes to the further understanding of the pathogenesis of MHV-68 infection but might also be of interest considering that M12/13 are located at a genomic position similar to that of LMP2A and K15. The latter are important proteins of their respective human gammaherpesviruses EBV and KSHV that contribute to cellular survival, cell activation and proliferation, which was deduced from in vitro studies.
Collapse
Affiliation(s)
- Beatrix Steer
- Institute of Asthma and Allergy Prevention, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Barbara Adler
- Max von Pettenkofer-Institute and Gene Center, Virology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Heiko Adler
- Institute of Asthma and Allergy Prevention, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Member of the German Center of Lung Research (DZL), Munich, Germany
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-University Munich, Member of the German Center of Lung Research (DZL), Munich, Germany
| |
Collapse
|
38
|
Palmer WH, Norman PJ. The impact of HLA polymorphism on herpesvirus infection and disease. Immunogenetics 2023; 75:231-247. [PMID: 36595060 PMCID: PMC10205880 DOI: 10.1007/s00251-022-01288-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/24/2022] [Indexed: 01/04/2023]
Abstract
Human Leukocyte Antigens (HLA) are cell surface molecules, central in coordinating innate and adaptive immune responses, that are targets of strong diversifying natural selection by pathogens. Of these pathogens, human herpesviruses have a uniquely ancient relationship with our species, where coevolution likely has reciprocating impact on HLA and viral genomic diversity. Consistent with this notion, genetic variation at multiple HLA loci is strongly associated with modulating immunity to herpesvirus infection. Here, we synthesize published genetic associations of HLA with herpesvirus infection and disease, both from case/control and genome-wide association studies. We analyze genetic associations across the eight human herpesviruses and identify HLA alleles that are associated with diverse herpesvirus-related phenotypes. We find that whereas most HLA genetic associations are virus- or disease-specific, HLA-A*01 and HLA-A*02 allotypes may be more generally associated with immune susceptibility and control, respectively, across multiple herpesviruses. Connecting genetic association data with functional corroboration, we discuss mechanisms by which diverse HLA and cognate receptor allotypes direct variable immune responses during herpesvirus infection and pathogenesis. Together, this review examines the complexity of HLA-herpesvirus interactions driven by differential T cell and Natural Killer cell immune responses.
Collapse
Affiliation(s)
- William H. Palmer
- Department of Biomedical Informatics, University of Colorado, Aurora, CO USA
- Department of Immunology & Microbiology, University of Colorado, Aurora, CO USA
| | - Paul J. Norman
- Department of Biomedical Informatics, University of Colorado, Aurora, CO USA
- Department of Immunology & Microbiology, University of Colorado, Aurora, CO USA
| |
Collapse
|
39
|
Semmes EC, Permar SR. Human Cytomegalovirus Infection Primes Fetal Natural Killer Cells for Fc-Mediated Antiviral Defense. J Infect Dis 2023; 227:739-741. [PMID: 35876548 DOI: 10.1093/infdis/jiac308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Eleanor C Semmes
- Medical Scientist Training Program, Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Sallie R Permar
- Department of Pediatrics, Weill Cornell Medicine, New York City, New York, USA
| |
Collapse
|
40
|
Lam AK, Roshan R, Miley W, Labo N, Zhen J, Kurland AP, Cheng C, Huang H, Teng PL, Harelson C, Gong D, Tam YK, Radu CG, Epeldegui M, Johnson JR, Zhou ZH, Whitby D, Wu TT. Immunization of Mice with Virus-Like Vesicles of Kaposi Sarcoma-Associated Herpesvirus Reveals a Role for Antibodies Targeting ORF4 in Activating Complement-Mediated Neutralization. J Virol 2023; 97:e0160022. [PMID: 36757205 PMCID: PMC9972917 DOI: 10.1128/jvi.01600-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023] Open
Abstract
Infection by Kaposi sarcoma-associated herpesvirus (KSHV) can cause severe consequences, such as cancers and lymphoproliferative diseases. Whole inactivated viruses (WIV) with chemically destroyed genetic materials have been used as antigens in several licensed vaccines. During KSHV productive replication, virus-like vesicles (VLVs) that lack capsids and viral genomes are generated along with virions. Here, we investigated the immunogenicity of KSHV VLVs produced from a viral mutant that was defective in capsid formation and DNA packaging. Mice immunized with adjuvanted VLVs generated KSHV-specific T cell and antibody responses. Neutralization of KSHV infection by the VLV immune serum was low but was markedly enhanced in the presence of the complement system. Complement-enhanced neutralization and complement deposition on KSHV-infected cells was dependent on antibodies targeting viral open reading frame 4 (ORF4). However, limited complement-mediated enhancement was detected in the sera of a small cohort of KSHV-infected humans which contained few neutralizing antibodies. Therefore, vaccination that induces antibody effector functions can potentially improve infection-induced humoral immunity. Overall, our study highlights a potential benefit of engaging complement-mediated antibody functions in future KSHV vaccine development. IMPORTANCE KSHV is a virus that can lead to cancer after infection. A vaccine that prevents KSHV infection or transmission would be helpful in preventing the development of these cancers. We investigated KSHV VLV as an immunogen for vaccination. We determined that antibodies targeting the viral protein ORF4 induced by VLV immunization could engage the complement system and neutralize viral infection. However, ORF4-specific antibodies were seldom detected in the sera of KSHV-infected humans. Moreover, these human sera did not potently trigger complement-mediated neutralization, indicating an improvement that immunization can confer. Our study suggests a new antibody-mediated mechanism to control KSHV infection and underscores the benefit of activating the complement system in a future KSHV vaccine.
Collapse
Affiliation(s)
- Alex K. Lam
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Romin Roshan
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Wendell Miley
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Nazzarena Labo
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - James Zhen
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Andrew P. Kurland
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Celine Cheng
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Haigen Huang
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Pu-Lin Teng
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Claire Harelson
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Danyang Gong
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Ying K. Tam
- Acuitas Therapeutics, Vancouver, British Columbia, Canada
| | - Caius G. Radu
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Marta Epeldegui
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Jeffrey R. Johnson
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Z. Hong Zhou
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Denise Whitby
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Ting-Ting Wu
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| |
Collapse
|
41
|
Liu S, Matsuo T, Abe T. Revisiting Cryptocyanine Dye, NK-4, as an Old and New Drug: Review and Future Perspectives. Int J Mol Sci 2023; 24:4411. [PMID: 36901839 PMCID: PMC10002675 DOI: 10.3390/ijms24054411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/25/2023] Open
Abstract
NK-4 plays a key role in the treatment of various diseases, such as in hay fever to expect anti-allergic effects, in bacterial infections and gum abscesses to expect anti-inflammatory effects, in scratches, cuts, and mouth sores from bites inside the mouth for enhanced wound healing, in herpes simplex virus (HSV)-1 infections for antiviral effects, and in peripheral nerve disease that causes tingling pain and numbness in hands and feet, while NK-4 is used also to expect antioxidative and neuroprotective effects. We review all therapeutic directions for the cyanine dye NK-4, as well as the pharmacological mechanism of NK-4 in animal models of related diseases. Currently, NK-4, which is sold as an over-the-counter drug in drugstores, is approved for treating allergic diseases, loss of appetite, sleepiness, anemia, peripheral neuropathy, acute suppurative diseases, wounds, heat injuries, frostbite, and tinea pedis in Japan. The therapeutic effects of NK-4's antioxidative and neuroprotective properties in animal models are now under development, and we hope to apply these pharmacological effects of NK-4 to the treatment of more diseases. All experimental data suggest that different kinds of utility of NK-4 in the treatment of diseases can be developed based on the various pharmacological properties of NK-4. It is expected that NK-4 could be developed in more therapeutic strategies to treat many types of diseases, such as neurodegenerative and retinal degenerative diseases.
Collapse
Affiliation(s)
- Shihui Liu
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8558, Japan
| | - Toshihiko Matsuo
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8558, Japan
- Department of Ophthalmology, Okayama University Hospital, Okayama 700-8558, Japan
| | - Takumi Abe
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan
| |
Collapse
|
42
|
Dai C, Zheng J, Qi L, Deng P, Wu M, Li L, Yuan J. Chronic stress boosts systemic inflammation and compromises antiviral innate immunity in Carassius gibel. Front Immunol 2023; 14:1105156. [PMID: 36814911 PMCID: PMC9939519 DOI: 10.3389/fimmu.2023.1105156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 01/26/2023] [Indexed: 02/08/2023] Open
Abstract
It is generally considered that stress causes decreased immune function and render fish vulnerable to infection and diseases. However, the molecular mechanisms between stress responses and susceptibility to infections, especially viral diseases, in fish remain unknown. Understanding and monitoring the biological consequences and mechanisms underlying stress responses in fish may contribute to the improvement of animal welfare and production efficiency. In this study, long-term exposure to a variety of stressors, including chasing, overcrowding, restraint stress, and air exposure mimicking chronic stresses, in aquaculture practices was conducted in Carassius gibel to investigate the consequences of chronic stress on inflammation and antiviral capability. With the continuation of stimulation, experimental fish gradually became insensitive to the stress of net chasing and feeding with the accompaniment of upregulated gene expressed in the HPI axis and elevated levels of stress hormones. As expected, stress-induced hyperglycaemia with a decrease in the insulin signaling pathway and altered gene expression in glycolysis and gluconeogenesis, suggesting the disturbance of glycometabolism. Importantly, a link between intestinal homoeostasis and systemic low-grade inflammation in stressed C. gibel was observed, implying crosstalk among the brain, intestine, and other organs. Furthermore, the compromised antiviral capability with impaired antiviral innate immunity in stressed fish was confirmed by RNA sequencing and infection with Cyprinid herpesvirus 2 (CyHV-2), promoting the understanding of enhanced susceptibility to viral infection in stressed fish.
Collapse
Affiliation(s)
- Caijiao Dai
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
| | - Jianduo Zheng
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Huazhong Agricultural University, Wuhan, China
| | - Lin Qi
- Department of Consultation, Tianbin Ruicheng Environmental Technology Engineering Co., LTD, Tianjin, China
| | - Ping Deng
- Fisheries Science Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan, China
| | - Mengke Wu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Lijuan Li
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
| | - Junfa Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
- Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Huazhong Agricultural University, Wuhan, China
| |
Collapse
|
43
|
Li X, Wang F, Zhang X, Sun Q, Kuang E. Suppression of KSHV lytic replication and primary effusion lymphoma by selective RNF5 inhibition. PLoS Pathog 2023; 19:e1011103. [PMID: 36656913 PMCID: PMC9888681 DOI: 10.1371/journal.ppat.1011103] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/31/2023] [Accepted: 01/06/2023] [Indexed: 01/20/2023] Open
Abstract
Primary effusion lymphoma (PEL), a rare aggressive B-cell lymphoma in immunosuppressed patients, is etiologically associated with oncogenic γ-herpesvirus infection. Chemotherapy is commonly used to treat PEL but usually results in poor prognosis and survival; thus, novel therapies and drug development are urgently needed for PEL treatment. Here, we demonstrated that inhibition of Ring finger protein 5 (RNF5), an ER-localized E3 ligase, suppresses multiple cellular pathways and lytic replication of Kaposi sarcoma-associated herpesvirus (KSHV) in PEL cells. RNF5 interacts with and induces Ephrin receptors A3 (EphA3) and EphA4 ubiquitination and degradation. RNF5 inhibition increases the levels of EphA3 and EphA4, thereby reducing ERK and Akt activation and KSHV lytic replication. RNF5 inhibition decreased PEL xenograft tumor growth and downregulated viral gene expression, cell cycle gene expression, and hedgehog signaling in xenograft tumors. Our study suggests that RNF5 plays the critical roles in KSHV lytic infection and tumorigenesis of primary effusion lymphoma.
Collapse
Affiliation(s)
- Xiaojuan Li
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- College of Clinical Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Fan Wang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xiaolin Zhang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Qinqin Sun
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Ersheng Kuang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, China
- * E-mail:
| |
Collapse
|
44
|
Bulegon JS, Weber ADAP, de Souza MD, Viero FT, Pillat MM, Gonçalves TDL. Oxidative profile, inflammatory responses and δ-aminolevulinate dehydratase enzyme activity in influenza B virus infection. Pathog Dis 2023; 81:ftad028. [PMID: 37816669 DOI: 10.1093/femspd/ftad028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/19/2023] [Accepted: 10/09/2023] [Indexed: 10/12/2023] Open
Abstract
The aim of the current study was to determine the activity of the delta-aminolevulinate dehydratase (δ-ALA-D) enzyme, oxidative stress biomarkers and the expression of cytokines in those infected with influenza B virus (IBV). To evaluate the activity of the δ-ALA-D enzyme, lipid peroxidation was estimated as levels of thiobarbituric acid reactive substances, protein and non-protein thiol groups, ferric-reducing antioxidant power (FRAP), vitamin C concentration and cytokine levels in IBV-infected individuals (n = 50) and a control group (n = 30). δ-ALA-D activity was significantly lower in IBV-infected individuals compared with controls, as well as levels of thiols, vitamin C and FRAP. Lipid peroxidation and cytokine levels of IL-6, IL-10, IL-17A and IFN-y were statistically higher in the IBV group. In conclusion, we found evidence of the generation of oxidants, the depletion of the antioxidant system, decrease in the activity of the δ-ALA-D enzyme and an increase in the synthesis of cytokines, thus contributing to a better understanding of oxidative and inflammatory pathways during IBV infection.
Collapse
Affiliation(s)
- Jovana Simonetti Bulegon
- Programa de Pós-graduação em Ciências Farmacêuticas, Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, RS, Brasil
| | - Andressa de Azambuja Pias Weber
- Programa de Pós-graduação em Ciências Farmacêuticas, Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, RS, Brasil
| | - Manoela Dias de Souza
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade Federal de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, Brasil
| | - Fernanda Tibolla Viero
- Programa de Pós-graduação em Farmacologia, Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Prédio 20, Universidade Federal de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, Brasil
| | - Micheli Mainardi Pillat
- Programa de Pós-graduação em Ciências Farmacêuticas, Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Farmacologia, Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Prédio 20, Universidade Federal de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, Brasil
| | - Thissiane de Lima Gonçalves
- Programa de Pós-graduação em Ciências Farmacêuticas, Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, RS, Brasil
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Prédio 26, Universidade Federal de Santa Maria, UFSM, Av. Roraima, n° 1000, Cidade Universitária, Bairro Camobi, CEP: 97105-900, Santa Maria, Brasil
| |
Collapse
|
45
|
Seah A, Loo LH, Jamali N, Maiwald M, Aik J. The influence of air quality and meteorological variations on influenza A and B virus infections in a paediatric population in Singapore. Environ Res 2023; 216:114453. [PMID: 36183790 DOI: 10.1016/j.envres.2022.114453] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 09/11/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Influenza is an important cause of paediatric illness across the globe. However, information about the relationships between air pollution, meteorological variability and paediatric influenza A and B infections in tropical settings is limited. METHODS We analysed all daily reports of influenza A and B infections in children <5 years old obtained from the largest specialist women and children's hospital in Singapore. In separate negative binomial regression models, we assessed the dependence of paediatric influenza A and B infections on air quality and meteorological variability, using multivariable fractional polynomial modelling and adjusting for time-varying confounders. RESULTS Approximately 80% of 7329 laboratory-confirmed reports were caused by influenza A. We observed positive associations between sulphur dioxide (SO2) exposure and the subsequent risk of infection with both influenza types. We observed evidence of a harvesting effect of SO2 on Influenza A but not Influenza B. Ambient temperature was associated with a decline in influenza A reports (Relative Risk at lag 5 [RRlag5]: 0.949, 95% CI: 0.916-0.983). Rainfall was positively associated with a subsequent increase in influenza A reports (RRlag3: 1.044, 95% CI: 1.017-1.071). Nitrogen dioxide (NO2) concentration was positively associated with influenza B reports (RRlag5: 1.015, 95% CI: 1.005-1.025). There was a non-linear association between CO and influenza B reports. Absolute humidity increased the ensuing risk of influenza B (RRlag5: 4.799, 95% CI: 2.277-10.118). Influenza A and B infections displayed dissimilar but predictable within-year seasonal patterns. CONCLUSIONS We observed different independent associations between air quality and meteorological variability with paediatric influenza A and B infections. Anticipated seasonal infection peaks and variations in air quality and meteorological parameters can inform the timing of community measures aimed at reducing influenza infection risk.
Collapse
Affiliation(s)
- Annabel Seah
- Environmental Epidemiology and Toxicology Division, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, 228231, Singapore.
| | - Liat Hui Loo
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899, Singapore; Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore.
| | - Natasha Jamali
- Environmental Monitoring and Modelling Division, National Environment Agency, 40 Scotts Road, #13-00, 228231, Singapore.
| | - Matthias Maiwald
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899, Singapore; Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore; Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, NUHS Tower Block, 1E Kent Ridge Road Level 11, 119228, Singapore.
| | - Joel Aik
- Environmental Epidemiology and Toxicology Division, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, 228231, Singapore; Pre-Hospital & Emergency Research Centre, Duke-NUS Medical School, 8 College Road, 169857, Singapore.
| |
Collapse
|
46
|
Panigrahy N, Bakhru S, Lingappa L, Chirla D. Aicardi-Goutières syndrome (AGS): recurrent fetal cardiomyopathy and pseudo-TORCH syndrome. BMJ Case Rep 2022; 15:15/12/e249192. [PMID: 36581356 PMCID: PMC9806047 DOI: 10.1136/bcr-2022-249192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Aicardi-Goutières syndrome (AGS) induces innate immune activation. It can present with cerebral calcifications and hepatosplenomegaly mimicking congenital infections. The present case report discusses the diagnosis and treatment of a case of fetal cardiomyopathy whose postnatal symptoms resembled TORCH (toxoplasmosis, other agents, rubella, cytomegalovirus, herpes and syphilis) infection. The mother had a history of two lost pregnancies due to fetal cardiomyopathy and the same was identified in the current pregnancy. At 34 weeks of gestation, the mother delivered a late preterm male neonate due to intrauterine growth restriction weighing 1590 g with respiratory distress and cardiomyopathy at birth. The neonate had cerebral calcifications, hepatosplenomegaly and thrombocytopenia. As the infant's TORCH IgM titre was negative, pseudo-TORCH syndrome similar to AGS was suspected. Clinical exome sequencing of the parents and fetus identified no genes for hydrops fetalis or fetal cardiomyopathy; however, the AGS TREX1 gene was identified in the neonate, while additional symptoms resembled TORCH infection. The neonate was discharged and has shown improvement with oral baricitinib treatment for the last 9 months.
Collapse
Affiliation(s)
| | - Shweta Bakhru
- Pediatric Cardiology, Rainbow Children's Heart Institute, Hyderabad, Telengana, India
| | - Lokesh Lingappa
- Pediatric Neurology, Rainbow Children's Hospital Banjara Hills, Hyderabad, Telangana, India
| | - Dinesh Chirla
- Intensive Care, Rainbow Children's Hospital, Hyderabad, Andhra Pradesh, India
| |
Collapse
|
47
|
Wu Y, Tan S, He Q, Wang M, Chen S, Jia R, Yang Q, Zhu D, Liu M, Zhao X, Zhang S, Huang J, Ou X, Mao S, Gao Q, Sun D, Tian B, Cheng A. Deletion of Double Copies of the US1 Gene Reduces the Infectivity of Recombinant Duck Plague Virus In Vitro and In Vivo. Microbiol Spectr 2022; 10:e0114022. [PMID: 36377937 PMCID: PMC9784771 DOI: 10.1128/spectrum.01140-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
Abstract
Duck plague caused by duck plague virus (DPV) is one of the main diseases that seriously endangers the production of waterfowl. DPV possesses a large genome consisting of 78 open reading frames (ORFs), and understanding the function and mechanism of each encoded protein in viral replication and pathogenesis is the key to controlling duck plague outbreaks. US1 is one of the two genes located in the repeat regions of the DPV genome, but the function of its encoded protein in DPV replication and pathogenesis remains unclear. Previous studies found that the US1 gene or its homologs exist in almost all alphaherpesviruses, but the loci, functions, and pathogenesis of their encoded proteins vary among different viruses. Here, we aimed to define the roles of US1 genes in DPV infection and pathogenesis by generating a double US1 gene deletion mutant and its revertant without any mini-F cassette retention. In vitro and in vivo studies found that deletion of both copies of the US1 gene significantly impaired the replication, gene expression, and virulence of DPV, which could represent a potential candidate vaccine strain for the prevention of duck plague. IMPORTANCE Duck plague virus contains nearly 80 genes, but the functions and mechanisms of most of the genes have not yet been elucidated, including those of the newly identified immediate early gene US1. Here, we found that US1 deletion reduces viral gene expression, replication, and virus production both in vitro and in vivo. This insight defines a fundamental role of the US1 gene in DPV infection and indicates its involvement in DPV transcription. These results provide clues for the study of the pathogenesis of the US1 gene and the development of attenuated vaccines targeting this gene.
Collapse
Affiliation(s)
- Ying Wu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Silun Tan
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Qing He
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Mingshu Wang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Shun Chen
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Renyong Jia
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Qiao Yang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Dekang Zhu
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Mafeng Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Xinxin Zhao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Shaqiu Zhang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Juan Huang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Xumin Ou
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Sai Mao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Qun Gao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Di Sun
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Bin Tian
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| | - Anchun Cheng
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang, China
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, China
| |
Collapse
|
48
|
Tabtieng T, Lent RC, Kaku M, Monago Sanchez A, Gaglia MM. Caspase-Mediated Regulation and Cellular Heterogeneity of the cGAS/STING Pathway in Kaposi's Sarcoma-Associated Herpesvirus Infection. mBio 2022; 13:e0244622. [PMID: 36255240 PMCID: PMC9765453 DOI: 10.1128/mbio.02446-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 09/19/2022] [Indexed: 11/20/2022] Open
Abstract
As a result of the ongoing virus-host arms race, viruses have evolved numerous immune subversion strategies, many of which are aimed at suppressing the production of type I interferons (IFNs). Apoptotic caspases have recently emerged as important regulators of type I IFN signaling both in noninfectious contexts and during viral infection. Despite being widely considered antiviral factors since they can trigger cell death, several apoptotic caspases promote viral replication by suppressing innate immune response. Indeed, we previously discovered that the AIDS-associated oncogenic gammaherpesvirus Kaposi's sarcoma-associated herpesvirus (KSHV) exploits caspase activity to suppress the antiviral type I IFN response and promote viral replication. However, the mechanism of this novel viral immune evasion strategy is poorly understood, particularly with regard to how caspases antagonize IFN signaling during KSHV infection. Here, we show that caspase activity inhibits the DNA sensor cGAS during KSHV lytic replication to block type I IFN induction. Furthermore, we used single-cell RNA sequencing to reveal that the potent antiviral state conferred by caspase inhibition is mediated by an exceptionally small percentage of IFN-β-producing cells, thus uncovering further complexity of IFN regulation during viral infection. Collectively, these results provide insight into multiple levels of cellular type I IFN regulation that viruses co-opt for immune evasion. Unraveling these mechanisms can inform targeted therapeutic strategies for viral infections and reveal cellular mechanisms of regulating interferon signaling in the context of cancer and chronic inflammatory diseases. IMPORTANCE Type I interferons are key factors that dictate the outcome of infectious and inflammatory diseases. Thus, intricate cellular regulatory mechanisms are in place to control IFN responses. While viruses encode their own immune-regulatory proteins, they can also usurp existing cellular interferon regulatory functions. We found that caspase activity during lytic infection with the AIDS-associated oncogenic gammaherpesvirus Kaposi's sarcoma-associated herpesvirus inhibits the DNA sensor cGAS to block the antiviral type I IFN response. Moreover, single-cell RNA sequencing analyses unexpectedly revealed that an exceptionally small subset of infected cells (<5%) produce IFN, yet this is sufficient to confer a potent antiviral state. These findings reveal new aspects of type I IFN regulation and highlight caspases as a druggable target to modulate cGAS activity.
Collapse
Affiliation(s)
- Tate Tabtieng
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Program in Biochemistry, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
| | - Rachel C. Lent
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Program in Molecular Microbiology, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
| | - Machika Kaku
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Program in Immunology, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
| | - Alvaro Monago Sanchez
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Madrid, Spain
| | - Marta Maria Gaglia
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Program in Biochemistry, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
- Program in Molecular Microbiology, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
- Program in Immunology, Tufts University Graduate School of Biomedical Sciences, Boston, Massachusetts, USA
- Institute for Molecular Virology and Department of Medical Microbiology and Immunology, University of Wisconsin—Madison, Wisconsin, USA
| |
Collapse
|
49
|
Toomer G, Workman A, Harrison KS, Stayton E, Hoyt PR, Jones C. Stress Triggers Expression of Bovine Herpesvirus 1 Infected Cell Protein 4 (bICP4) RNA during Early Stages of Reactivation from Latency in Pharyngeal Tonsil. J Virol 2022; 96:e0101022. [PMID: 36416585 PMCID: PMC9749472 DOI: 10.1128/jvi.01010-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/31/2022] [Indexed: 11/24/2022] Open
Abstract
Bovine herpesvirus 1 (BoHV-1), an important pathogen of cattle, establishes lifelong latency in sensory neurons within trigeminal ganglia (TG) after acute infection. The BoHV-1 latency-reactivation cycle, like other alphaherpesvirinae subfamily members, is essential for viral persistence and transmission. Notably, cells within pharyngeal tonsil (PT) also support a quiescent or latent BoHV-1 infection. The synthetic corticosteroid dexamethasone, which mimics the effects of stress, consistently induces BoHV-1 reactivation from latency allowing early stages of viral reactivation to be examined in the natural host. Based on previous studies, we hypothesized that stress-induced cellular factors trigger expression of key viral transcriptional regulatory genes. To explore this hypothesis, RNA-sequencing studies compared viral gene expression in PT during early stages of dexamethasone-induced reactivation from latency. Strikingly, RNA encoding infected cell protein 4 (bICP4), which is translated into an essential viral transcriptional regulatory protein, was detected 30 min after dexamethasone treatment. Ninety minutes after dexamethasone treatment bICP4 and, to a lesser extent, bICP0 RNA were detected in PT. All lytic cycle viral transcripts were detected within 3 h after dexamethasone treatment. Surprisingly, the latency related (LR) gene, the only viral gene abundantly expressed in latently infected TG neurons, was not detected in PT during latency. In TG neurons, bICP0 and the viral tegument protein VP16 are expressed before bICP4 during reactivation, suggesting distinct viral regulatory genes mediate reactivation from latency in PT versus TG neurons. Finally, these studies confirm PT is a biologically relevant site for BoHV-1 latency, reactivation from latency, and virus transmission. IMPORTANCE BoHV-1, a neurotropic herpesvirus, establishes, maintains, and reactivates from latency in neurons. BoHV-1 DNA is also detected in pharyngeal tonsil (PT) from latently infected calves. RNA-sequencing studies revealed the viral infected cell protein 4 (bICP4) RNA was expressed in PT of latently infected calves within 30 min after dexamethasone was used to initiate reactivation. As expected, bICP4 RNA was not detected during latency. All lytic cycle viral genes were expressed within 3 h after dexamethasone treatment. Conversely, bICP0 and the viral tegument protein VP16 are expressed prior to bICP4 in trigeminal ganglionic neurons during reactivation. The viral latency related gene, which is abundantly expressed in latently infected neurons, was not abundantly expressed in PT during latency. These studies provide new evidence PT is a biologically relevant site for BoHV-1 latency and reactivation. Finally, we predict other alphaherpesvirinae subfamily members utilize PT as a site for latency and reactivation.
Collapse
Affiliation(s)
- Gabriela Toomer
- Oklahoma State University, College of Veterinary Medicine, Department of Veterinary Pathobiology, Stillwater, Oklahoma, USA
| | - Aspen Workman
- United States Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, Clay Center, Nebraska, USA
| | - Kelly S. Harrison
- Oklahoma State University, College of Veterinary Medicine, Department of Veterinary Pathobiology, Stillwater, Oklahoma, USA
| | - Erin Stayton
- Oklahoma State University, College of Veterinary Medicine, Department of Veterinary Pathobiology, Stillwater, Oklahoma, USA
| | - Peter R. Hoyt
- Oklahoma State University, Department of Biochemistry and Molecular Biology, Stillwater, Oklahoma, USA
| | - Clinton Jones
- Oklahoma State University, College of Veterinary Medicine, Department of Veterinary Pathobiology, Stillwater, Oklahoma, USA
| |
Collapse
|
50
|
Ahmed S, van Zalm P, Rudmann EA, Leone M, Keller K, Branda JA, Steen J, Mukerji SS, Steen H. Using CSF Proteomics to Investigate Herpesvirus Infections of the Central Nervous System. Viruses 2022; 14:2757. [PMID: 36560759 PMCID: PMC9780940 DOI: 10.3390/v14122757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022] Open
Abstract
Herpesviruses have complex mechanisms enabling infection of the human CNS and evasion of the immune system, allowing for indefinite latency in the host. Herpesvirus infections can cause severe complications of the central nervous system (CNS). Here, we provide a novel characterization of cerebrospinal fluid (CSF) proteomes from patients with meningitis or encephalitis caused by human herpes simplex virus 1 (HSV-1), which is the most prevalent human herpesvirus associated with the most severe morbidity. The CSF proteome was compared with those from patients with meningitis or encephalitis due to human herpes simplex virus 2 (HSV-2) or varicella-zoster virus (VZV, also known as human herpesvirus 3) infections. Virus-specific differences in CSF proteomes, most notably elevated 14-3-3 family proteins and calprotectin (i.e., S100-A8 and S100-A9), were observed in HSV-1 compared to HSV-2 and VZV samples, while metabolic pathways related to cellular and small molecule metabolism were downregulated in HSV-1 infection. Our analyses show the feasibility of developing CNS proteomic signatures of the host response in alpha herpes infections, which is paramount for targeted studies investigating the pathophysiology driving virus-associated neurological disorders, developing biomarkers of morbidity, and generating personalized therapeutic strategies.
Collapse
Affiliation(s)
- Saima Ahmed
- Department of Pathology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Patrick van Zalm
- Department of Pathology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Emily A. Rudmann
- Neuroimmunology and Neuro-Infectious Diseases Division, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Michael Leone
- Neuroimmunology and Neuro-Infectious Diseases Division, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Kiana Keller
- Neuroimmunology and Neuro-Infectious Diseases Division, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - John A. Branda
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Judith Steen
- F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Shibani S. Mukerji
- Neuroimmunology and Neuro-Infectious Diseases Division, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Hanno Steen
- Department of Pathology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Precision Vaccines Program and Neurobiology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|