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Ramesh V, Krishnan J. A unified approach to dissecting biphasic responses in cell signaling. eLife 2023; 13:e86520. [PMID: 38054655 DOI: 10.7554/elife.86520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023] Open
Abstract
Biphasic responses are encountered at all levels in biological systems. At the cellular level, biphasic dose-responses are widely encountered in cell signaling and post-translational modification systems and represent safeguards against overactivation or overexpression of species. In this paper, we provide a unified theoretical synthesis of biphasic responses in cell signaling systems, by assessing signaling systems ranging from basic biochemical building blocks to canonical network structures to well-characterized exemplars on one hand, and examining different types of doses on the other. By using analytical and computational approaches applied to a range of systems across levels (described by broadly employed models), we reveal (i) design principles enabling the presence of biphasic responses, including in almost all instances, an explicit characterization of the parameter space (ii) structural factors which preclude the possibility of biphasic responses (iii) different combinations of the presence or absence of enzyme-biphasic and substrate-biphasic responses, representing safeguards against overactivation and overexpression, respectively (iv) the possibility of broadly robust biphasic responses (v) the complete alteration of signaling behavior in a network due to biphasic interactions between species (biphasic regulation) (vi) the propensity of different co-existing biphasic responses in the Erk signaling network. These results both individually and in totality have a number of important consequences for systems and synthetic biology.
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Affiliation(s)
- Vaidhiswaran Ramesh
- Department of Chemical Engineering, Sargent Centre for Process Systems Engineering, Imperial College London, London, United Kingdom
| | - J Krishnan
- Department of Chemical Engineering, Sargent Centre for Process Systems Engineering, Imperial College London, London, United Kingdom
- Institute for Systems and Synthetic Biology, Imperial College London, South Kensington Campus, London, United Kingdom
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Tan WS, Rong E, Dry I, Lillico SG, Law A, Digard P, Whitelaw B, Dalziel RG. GARP and EARP are required for efficient BoHV-1 replication as identified by a genome wide CRISPR knockout screen. PLoS Pathog 2023; 19:e1011822. [PMID: 38055775 PMCID: PMC10727446 DOI: 10.1371/journal.ppat.1011822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/18/2023] [Accepted: 11/13/2023] [Indexed: 12/08/2023] Open
Abstract
The advances in gene editing bring unprecedented opportunities in high throughput functional genomics to animal research. Here we describe a genome wide CRISPR knockout library, btCRISPRko.v1, targeting all protein coding genes in the cattle genome. Using it, we conducted genome wide screens during Bovine Herpes Virus type 1 (BoHV-1) replication and compiled a list of pro-viral and anti-viral candidates. These candidates might influence multiple aspects of BoHV-1 biology such as viral entry, genome replication and transcription, viral protein trafficking and virion maturation in the cytoplasm. Some of the most intriguing examples are VPS51, VPS52 and VPS53 that code for subunits of two membrane tethering complexes, the endosome-associated recycling protein (EARP) complex and the Golgi-associated retrograde protein (GARP) complex. These complexes mediate endosomal recycling and retrograde trafficking to the trans Golgi Network (TGN). Simultaneous loss of both complexes in MDBKs resulted in greatly reduced production of infectious BoHV-1 virions. We also found that viruses released by these deficient cells severely lack VP8, the most abundant tegument protein of BoHV-1 that are crucial for its virulence. In combination with previous reports, our data suggest vital roles GARP and EARP play during viral protein packaging and capsid re-envelopment in the cytoplasm. It also contributes to evidence that both the TGN and the recycling endosomes are recruited in this process, mediated by these complexes. The btCRISPRko.v1 library generated here has been controlled for quality and shown to be effective in host gene discovery. We hope it will facilitate efforts in the study of other pathogens and various aspects of cell biology in cattle.
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Affiliation(s)
- Wenfang S. Tan
- Division of Infection and Immunity, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Enguang Rong
- Division of Infection and Immunity, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Inga Dry
- Division of Infection and Immunity, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Simon G. Lillico
- Division of Functional Genetics and Development, University of Edinburgh, Edinburgh, Scotland, United Kingdom
- Centre for Tropical Livestock Genetics and Health, the Roslin Institute, Easter Bush Campus, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Andy Law
- Division of Genetics and Genomics, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Paul Digard
- Division of Infection and Immunity, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Bruce Whitelaw
- Division of Functional Genetics and Development, University of Edinburgh, Edinburgh, Scotland, United Kingdom
- Centre for Tropical Livestock Genetics and Health, the Roslin Institute, Easter Bush Campus, University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Robert G. Dalziel
- Division of Infection and Immunity, University of Edinburgh, Edinburgh, Scotland, United Kingdom
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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] [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.
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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
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Liu Y, Zhang Q, Zou M, Cui J, Shi X, Li L, Wu F, Xu X. Cell entry of Bovine herpesvirus-1 through clathrin- and caveolin-mediated endocytosis requires activation of PI3K-Akt-NF-κB and Ras-p38 MAPK pathways as well as the interaction of BoHV-1 gD with cellular receptor nectin-1. Vet Microbiol 2023; 279:109672. [PMID: 36774841 DOI: 10.1016/j.vetmic.2023.109672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
Bovine herpesvirus-1 (BoHV-1) can infect all breeds of cattle and cause severe respiratory organs and genital tract diseases. However, the mechanism of BoHV-1 entering the cells remains unclear. In this study, we explored the mechanism of BoHV-1 entering MDBK cells. We found that the entry of BoHV-1 was blocked by NH4Cl and bafilomycin A1, indicating that BoHV-1 entry is dependent on the acidic environment of endosome. Specific inhibitor dynasore and small interfering RNA (siRNA) knockdown of dynamin-2 inhibited BoHV-1 entry, showing that dynamin is required in BoHV-1 entry. The results of specific inhibitor, siRNA knockdown and co-localization indicating clathrin- and caveolin- mediated endocytosis play a role in BoHV-1 entry. BoHV-1 infection was not affected by EIPA which is a specific inhibitor of macropinocytosis. In addition, we found that BoHV-1 triggered PI3K-Akt-NF-κB and Ras-p38 MAPK signaling pathways to induce clathrin-mediated and caveolin-mediated endocytosis at the early stage of BoHV-1 infection. BoHV-1 binding was sufficient to activate the endocytic signaling pathways and promote viral entry. These two signaling pathways were activated by transfection of viral gD protein, and were inhibited by deletion of viral gD protein and the siRNA knockdown of cellular receptor nectin-1. The results of co-localization indicating the entered BoHV-1 is traced to late endosomes via early endosomes. Our results suggested the interaction of viral gD protein and cellular receptor nectin-1 triggered the PI3K-Akt-NF-κB and Ras-p38 MAPK signaling pathways and induced clathrin-mediated and caveolin-mediated endocytosis to promote BoHV-1 entry into MDBK cells at the early stage of BoHV-1 infection.
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Affiliation(s)
- Yang Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Animal Biosafety Risk Warning and Control of Ministry of Agriculture and Rural Affairs (South), China Animal Health And Epidemiology Center, Qingdao, Shandong 266032, China
| | - Qi Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Min Zou
- State Key Laboratory of Animal Genetical Engineered Vaccine of Ministry of Science and Technology, Qingdao YeBio Biological Engineering Company Limited, Qingdao, Shandong 266110, China
| | - Jin Cui
- Key Laboratory of Animal Biosafety Risk Warning and Control of Ministry of Agriculture and Rural Affairs (South), China Animal Health And Epidemiology Center, Qingdao, Shandong 266032, China
| | - Xiaojie Shi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Linjie Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Faxing Wu
- Key Laboratory of Animal Biosafety Risk Warning and Control of Ministry of Agriculture and Rural Affairs (South), China Animal Health And Epidemiology Center, Qingdao, Shandong 266032, China.
| | - Xingang Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Suraweera TL, Merlin JPJ, Dellaire G, Xu Z, Rupasinghe HPV. Genistein and Procyanidin B2 Reduce Carcinogen-Induced Reactive Oxygen Species and DNA Damage through the Activation of Nrf2/ARE Cell Signaling in Bronchial Epithelial Cells In Vitro. Int J Mol Sci 2023; 24:ijms24043676. [PMID: 36835090 PMCID: PMC9961944 DOI: 10.3390/ijms24043676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Cancer is one of the leading causes of death worldwide. Chemotherapy and radiation therapy are currently providing the basis for cancer therapies, although both are associated with significant side effects. Thus, cancer prevention through dietary modifications has been receiving growing interest. The potential of selected flavonoids in reducing carcinogen-induced reactive oxygen species (ROS) and DNA damage through the activation of nuclear factor erythroid 2 p45 (NF-E2)-related factor (Nrf2)/antioxidant response element (ARE) pathway was studied in vitro. Dose-dependent effects of pre-incubated flavonoids on pro-carcinogen 4-[(acetoxymethyl)nitrosamino]-1-(3-pyridyl)-1-butanone (NNKAc)-induced ROS and DNA damage in human bronchial epithelial cells were studied in comparison to non-flavonoids. The most effective flavonoids were assessed for the activation of Nrf2/ARE pathway. Genistein, procyanidin B2 (PCB2), and quercetin significantly suppressed the NNKAc-induced ROS and DNA damage. Quercetin significantly upregulated the phosphorylated protein kinase B/Akt. PCB2 significantly upregulated the activation of Nrf2 and Akt through phosphorylation. Genistein and PCB2 significantly upregulated the phospho-Nrf2 nuclear translocation and catalase activity. In summary, genistein and PCB2 reduced the NNKAc-induced ROS and DNA damage through the activation of Nrf2. Further studies are required to understand the role of dietary flavonoids on the regulation of the Nrf2/ARE pathway in relation to carcinogenesis.
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Affiliation(s)
- Tharindu L. Suraweera
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
| | - J. P. Jose Merlin
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
| | - Graham Dellaire
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4H7, Canada
| | - Zhaolin Xu
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4H7, Canada
- QEII Health Sciences Centre, Division of Anatomical Pathology and Cytopathology, Nova Scotia Health Authority, Halifax, NS B3H 1V8, Canada
| | - H. P. Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4H7, Canada
- Correspondence:
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Differential expression profile and in-silico functional analysis of long noncoding RNA and mRNA in duck embryo fibroblasts infected with duck plague virus. BMC Genomics 2022; 23:509. [PMID: 35836133 PMCID: PMC9281093 DOI: 10.1186/s12864-022-08739-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 07/06/2022] [Indexed: 12/04/2022] Open
Abstract
Background Duck plague virus (DPV), belonging to herpesviruses, is a linear double-stranded DNA virus. There are many reports about the outbreak of the duck plague in a variety of countries, which caused huge economic losses. Recently, increasing reports revealed that multiple long non-coding RNAs (lncRNAs) can possess great potential in the regulation of host antiviral immune response. Furthermore, it remains to be determined which specific molecular mechanisms are responsible for the DPV-host interaction in host immunity. Here, lncRNAs and mRNAs in DPV infected duck embryonic fibroblast (DEF) cells were identified by high-throughput RNA-sequencing (RNA-seq). And we predicted target genes of differentially expressed genes (DEGs) and formed a complex regulatory network depending on in-silico analysis and prediction. Result RNA-seq analysis results showed that 2921 lncRNAs were found at 30 h post-infection (hpi). In our study, 218 DE lncRNAs and 2840 DE mRNAs were obtained in DEF after DPV infection. Among these DEGs and target genes, some have been authenticated as immune-related molecules, such as a Macrophage mannose receptor (MR), Anas platyrhynchos toll-like receptor 2 (TLR2), leukocyte differentiation antigen, interleukin family, and their related regulatory factors. Furthermore, according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analysis, we found that the target genes may have important effects on biological development, biosynthesis, signal transduction, cell biological regulation, and cell process. Also, we obtained, the potential targeting relationship existing in DEF cells between host lncRNAs and DPV-encoded miRNAs by software. Conclusions This study revealed not only expression changes, but also the possible biological regulatory relationship of lncRNAs and mRNAs in DPV infected DEF cells. Together, these data and analyses provide additional insight into the role of lncRNAs and mRNAs in the host's immune response to DPV infection. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08739-7.
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Transcriptomic Analysis of MDBK Cells Infected with Cytopathic and Non-Cytopathic Strains of Bovine Viral Diarrhea Virus (BVDV). Viruses 2022; 14:v14061276. [PMID: 35746747 PMCID: PMC9228727 DOI: 10.3390/v14061276] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 02/04/2023] Open
Abstract
Bovine viral diarrhea virus (BVDV) belongs to the Flaviviridae family and the Pestivirus genus. Infection with BVDV causes a disease with a wide spectrum of clinical symptoms, most often mild, although infections with this virus constitute a serious economic problem all over the world. The virus is characterized by a high genetic variability, while the accumulation of single mutations leads to the formation of its new variants. The aim of this study was to better understand the complicated pathogenesis of this disease at the molecular level via the analysis of the transcriptome of cells infected with this virus. The bovine kidney cell line (MDBK), the cytopathic (cp) reference strain, and two non-cytopathic (ncp) BVD virus field strains were used in transcriptomic studies. The cell transcriptome was tested 24 and 72 h after infection. The results of the microarray analysis revealed changes in the expression levels of numerous genes. Genes with changed expression as a result of infection with the cp strain caused changes in the expression levels of a large number of genes and enriched a number of pathways. Genes with increased expression levels were enriched among other pathways involved in the cell cycle, while genes with reduced expression levels enriched pathways mostly related to metabolism. Genes with increased expression levels as a result of infection with ncp strains enriched a much smaller number of pathways, among them, pathways related to signaling activity 24 h post-infection and serine biosynthetic pathways both 24 and 72 h post-infection. Pathways enriched by genes with reduced expression levels were related to the innate immune response (72 h post-infection) or metabolism (24 and 72 h post-infection). The results of microarray studies can help us to better understand the host’s response to BVDV infection.
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Ferreira HCC, de Araújo EN, Rosado NCL, Fietto JLR, Santos MR, Gomes LL, Silva LMN, Bressan GC, Martins GF, Sreevatsan S, Silva-Júnior A. Apoptosis in the late replication phase of Bovine alphaherpesvirus 1 in experimentally infected calves. Braz J Microbiol 2021; 52:2529-2534. [PMID: 34355356 DOI: 10.1007/s42770-021-00546-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 06/21/2021] [Indexed: 10/20/2022] Open
Abstract
Bovine alphaherpesvirus 1 (BoHV-1) is a pathogen causing respiratory and reproductive clinical signs in cattle. Infected animals may develop rhinotracheitis, vulvovaginitis, balanoposthitis, and abortion. Viral latency is generally established in neuronal ganglia simultaneously to a decrease in both genes or genome expression and viral replication. Under stressful conditions, infection is reactivated leading to viral replication and the manifestation of clinical signs. In this study, we evaluated both viral reactivation and apoptosis in trigeminal ganglia cells as BoHV-1 progressed from the latent to the acute phase of infection after dexamethasone administration in experimentally infected calves. To test ganglia cell death as a consequence of BoHV-1 infection, we stained the BoHV-1 samples with TUNEL after the viral shedding by the calves. RT-qPCR of apoptotic genes was also performed, showing the upregulation of the caspase 8 gene in the trigeminal ganglia from cattle experimentally infected with BoHV-1. These results showed the occurrence of apoptosis in ganglion cells of calves infected by BoHV-1.
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Affiliation(s)
- Hanna Carolina Campos Ferreira
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Elaine Nery de Araújo
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Nívia Carolina Lopes Rosado
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Juliana Lopes Rangel Fietto
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Marcus Rebouças Santos
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Lidiany Lopes Gomes
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Laura Morais Nascimento Silva
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Gustavo Costa Bressan
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Gustavo Ferreira Martins
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil
| | - Srinand Sreevatsan
- College of Veterinary Medicine, Michigan State University, F130G Veterinary Medical Center, 784 Wilson RD, Room 784 Wilson Road, Room F130G, East Lansing, MI, 48824, USA
| | - Abelardo Silva-Júnior
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36570-000, Brazil.
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Su W, Chen P, Yang Z, Zhong N, Ma Q, Zeng X, Zhang J, Wang Y, Li P. Network pharmacology integrated molecular docking reveals the potential of Hypericum japonicum Thunb. ex Murray against COVID-19. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1886873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Weiwei Su
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Pan Chen
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Zifeng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China
| | - Qinhai Ma
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China
| | - Xuan Zeng
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Jiashuo Zhang
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Yonggang Wang
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Peibo Li
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
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Chang L, Zhu L. Dewormer drug fenbendazole has antiviral effects on BoHV-1 productive infection in cell cultures. J Vet Sci 2020; 21:e72. [PMID: 33016019 PMCID: PMC7533386 DOI: 10.4142/jvs.2020.21.e72] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/22/2020] [Accepted: 07/21/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Fenbendazole, a dewormer drug, is used widely in the clinical treatment of parasite infections in animals. Recent studies have shown that fenbendazole has substantial effects on tumor growth, immune responses, and inflammatory responses, suggesting that fenbendazole is a pluripotent drug. Nevertheless, the antiviral effects have not been reported. Fenbendazole can disrupt microtubules, which are essential for multiple viruses infections, suggesting that fenbendazole might have antiviral effects. OBJECTIVES This study examined whether fenbendazole could inhibit bovine herpesvirus 1 (BoHV-1) productive infection in cell cultures. METHODS The effects of fenbendazole on viral production, transcription of the immediate early (IE) genes, viron-associated protein expression, and the cellular signaling PLC-γ1/Akt pathway were assessed using distinct methods. RESULTS Fenbendazole could inhibit BoHV-1 productive infections significantly in MDBK cells in a dose-dependent manner. A time-of-addition assay indicated that fenbendazole affected both the early and late stages in the virus replication cycles. The transcription of IE genes, including BoHV-1 infected cell protein 0 (bICP0), bCP4, and bICP22, as well as the synthesis of viron-associated proteins, were disrupted differentially by the fenbendazole treatment. The treatment did not affect the cellular signaling pathway of PLC-γ1/Akt, a known cascade playing important roles in virus infection. CONCLUSIONS Overall, fenbendazole has antiviral effects on BoHV-1 replication.
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Affiliation(s)
- Long Chang
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Liqian Zhu
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China.
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The Role of Epidermal Growth Factor Receptor Signaling Pathway during Bovine Herpesvirus 1 Productive Infection in Cell Culture. Viruses 2020; 12:v12090927. [PMID: 32846937 PMCID: PMC7552022 DOI: 10.3390/v12090927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 12/17/2022] Open
Abstract
Accumulating studies have shown that the epidermal growth factor receptor (EGFR) signaling pathway plays an essential role in mediating cellular entry of numerous viruses. In this study, we report that bovine herpesvirus 1 (BoHV-1) productive infection in both the human lung carcinoma cell line A549 and bovine kidney (MDBK) cells leads to activation of EGFR, as demonstrated by the increased phosphorylation of EGFR at Tyr1068 (Y1068), which in turn plays important roles in virus infection. A time-of-addition assay supported that virus replication at post-entry stages was affected by the EGFR specific inhibitor Gefitinib. Interestingly, both phospholipase C-γ1 (PLC-γ1) and Akt, canonical downstream effectors of EGFR, were activated following virus infection in A549 cells, while Gefitinib could inhibit the activation of PLC-γ1 but not Akt. In addition, virus titers in A549 cells was inhibited by chemical inhibition of PLC-γ1, but not by the inhibition of Akt. However, the Akt specific inhibitor Ly294002 could significantly reduce the virus titer in MDBK cells. Taken together, our data suggest that PLC-γ1 is stimulated in part through EGFR for efficient replication in A549 cells, whereas Akt can be stimulated by virus infection independent of EGFR, and is not essential for virus productive infection, indicating that Akt modulates BoHV-1 replication in a cell type-dependent manner. This study provides novel insights on how BoHV-1 infection activates EGFR signaling transduction to facilitate virus replication.
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12
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Hoang HD, Neault S, Pelin A, Alain T. Emerging translation strategies during virus-host interaction. WILEY INTERDISCIPLINARY REVIEWS-RNA 2020; 12:e1619. [PMID: 32757266 PMCID: PMC7435527 DOI: 10.1002/wrna.1619] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 01/02/2023]
Abstract
Translation control is crucial during virus-host interaction. On one hand, viruses completely rely on the protein synthesis machinery of host cells to propagate and have evolved various mechanisms to redirect the host's ribosomes toward their viral mRNAs. On the other hand, the host rewires its translation program in an attempt to contain and suppress the virus early on during infection; the antiviral program includes specific control on protein synthesis to translate several antiviral mRNAs involved in quenching the infection. As the infection progresses, host translation is in turn inhibited in order to limit viral propagation. We have learnt of very diverse strategies that both parties utilize to gain or retain control over the protein synthesis machinery. Yet novel strategies continue to be discovered, attesting for the importance of mRNA translation in virus-host interaction. This review focuses on recently described translation strategies employed by both hosts and viruses. These discoveries provide additional pieces in the understanding of the complex virus-host translation landscape. This article is categorized under: Translation > Translation Mechanisms Translation > Translation Regulation.
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Affiliation(s)
- Huy-Dung Hoang
- Children's Hospital of Eastern Ontario Research Institute, Apoptosis Research Centre, Ottawa, Ontario, K1H8L1, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Serge Neault
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Adrian Pelin
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Tommy Alain
- Children's Hospital of Eastern Ontario Research Institute, Apoptosis Research Centre, Ottawa, Ontario, K1H8L1, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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13
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Chen X, Zhu G, Zhu L. The Antiviral Effects of Sodium Phenylbutyrate Against BoHV-1 Infection In Vitro. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666190222155958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction:
The alteration of histone acetylation is a known mechanism to regulate gene
expression, and thereby affecting various cellular processes. Histone deacetylases (HDACs) are
known to regulate histone acetylation by removal of the acetyl group from lysines. HDAC inhibitor
such as Sodium Phenylbutyrate (PB) and Valproic Acid (VPA) have been reported to affect multiple
virus infection while whether they affect BoHV-1 infection is unknown.
Objective:
The aim of the study is to investigate whether PB and VPA effects BoHV-1 infection and
the virus induced inflammation related signaling including Erk1/2 and p38MAPK signaling.
Methods:
To assess the antiviral effects of PB and VPA on BoHV-1 infection, MDBK cells were
treated with these inhibitors at different concentrations. Then time addition was performed to pinpoint
which stages of virus infection was affected by the chemicals. In order to assess whether PB
affect viral gene expression, we detected the viral IE genes such as bICP0, bICP4 and bICP22 using
real-time PCR assay. The effects of PB had on the activation of inflammation related signaling including
Erk1/2 and p38MAPK in response to the virus infection were also detected.
Results:
Here, for the first time we reveals that PB but not VPA affects BoHV-1 infection at late
stages of infection. It affected the expression of IE genes such as bICP0, bICP4 and bICP22. Interestingly,
PB enhanced the activation of both Erk1/2 and p38MAPK signaling stimulated by BoHV-1
infection.
Conclusion:
HDAC inhibitor PB significantly inhibited BoHV-1 infection partially through the interruption
of certain viral IE gene expression. Though PB has been reported to have antiinflammatory
effects, we found that it enhanced the activation of inflammation pertinent signaling of
both Erk1/2 and p38MAPK stimulated by BoHV-1 infection.
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Affiliation(s)
- Xinye Chen
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China
| | - Liqian Zhu
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China
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14
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Comprehensive analysis of circRNAs expression profiles in different periods of MDBK cells infected with bovine viral diarrhea virus. Res Vet Sci 2019; 125:52-60. [PMID: 31146221 DOI: 10.1016/j.rvsc.2019.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 12/24/2018] [Accepted: 05/03/2019] [Indexed: 02/07/2023]
Abstract
CircRNAs play an important regulatory role in the regulation of disease. However, we have a limited understanding of the role of circRNAs in the host's complex protective and pathological mechanisms of BVDV infection. Transcriptome analysis of circRNAs in host cells after BVDV infection may allow us to understand the biological functions of circRNAs in the regulation of BVDV infection. Here, we identified a total of 19,118 circRNAs from the MBDK cells (at 12 h, 24 h, and 48 h post-infection) infected with BVDV by using RNA-seq technology. We confirmed several circRNAs using RT-PCR and DNA sequencing, and qRT-PCR analysis was performed to identify several circRNAs expression and circRNAs resistance to RNase R digestion. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) enrichment analysis showed that the host genes of differentially expressed circRNAs were involved in the regulation of cell proliferation, apoptosis, cycle and viral infection related signaling pathways. These results indicate that circRNA in host cells plays a broad regulatory role after BVDV infection and provides a valuable resource for studying circRNA biology in host cells after BVDV infection.
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15
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Liu J, Ma C, Zhang X, You J, Dong M, Chen L, Jiang P, Yun S. Molecular detection of Hsp90 inhibitor suppressing PCV2 replication in host cells. Microb Pathog 2019; 132:51-58. [PMID: 31028862 DOI: 10.1016/j.micpath.2019.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/15/2019] [Accepted: 04/23/2019] [Indexed: 11/19/2022]
Abstract
Porcine Circovirus Type 2 (PCV2) is a pathogen that has the ability to cause devastating disease manifestations in pig populations with major economic implications. Our previous research found that Hsp90 is required for PCV2 production in PK-15 and 3D4/31 cells. The aim of this study was to evaluate the effect of Hsp90 inhibitor regulating PCV2 replication and to explore its underlying mechanism. In PK-15 and 3D4/31 cells treated with 17-AAG after viral adsorption, replication of PCV2 was attenuated as assessed by quantitating the expression of viral protein. Following NF-κB activation it was observed that 24hpi with PCV2 was significantly inhibited in the presence of 17-AAG. The expression of Hsp90 associated client proteins in PCV2-infected cells were also reduced in the presence of 17-AAG. However, treatment with MG-132 failed to rescue 17-AAG mediated reduction of PCV2 production in host cells. Thus, Hsp90 regulates PCV2 by modulating cellular signaling proteins. These results highlight the importance of cellular proteins during PCV2 infection and the possibility of targeting cellular chaperones for developing new anti-rotaviral strategies.
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Affiliation(s)
- Jie Liu
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Chang Ma
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Xuliang Zhang
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Jinwei You
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Min Dong
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Li Chen
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Shifeng Yun
- Department of Comparative Medicine, Jinling Hospital, No.305 East Zhongshan Road, Nanjing, 210002, PR China.
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16
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Zhang F, Lv HZ, Liu JM, Ye XY, Wang CC. UNBS5162 inhibits colon cancer growth via suppression of PI3K/Akt signaling pathway. Med Sci (Paris) 2018; 34 Focus issue F1:99-104. [PMID: 30403183 DOI: 10.1051/medsci/201834f117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Colon cancer is a common cause of cancer-related death worldwide. However, the underlying mechanism of tumor progression of colon cancer remains far from being elucidated. In the present study, we report the role of UNBS5162 in colon cancer. UNBS5162 is a naphthalimide that can intercalate into DNA and suppress the expression level of CXCL chemokines. Here, we investigated its effect on cell proliferation, mobility and apoptosis in HCT116 cells, and explored the underlying mechanism. A CCK8 assay revealed that UNBS5162 can block the proliferation of colon cancer cells. Base on a Transwell assay, we showed that cell migration and invasion ability of HCT116 cells are inhibited by UNBS5162. In addition, Annexin V-FITC/PI assay and Western blot analysis were performed to detect whether UNBS5162 could induce cell apoptosis. The results indicated that UNBS5162 increases the number of apoptotic cells remarkably. Furthermore, Western blot analysis demonstrated that UNBS5162 down-regulates the expression level of Bcl2, and up-regulates that of Bax as well as the level of activated Caspase-3. Moreover, we examined the impact of UNBS5162 on PI3K/Akt signaling pathway. UNBS5162 substantially inhibited the phosphorylation of Akt and its downstream effector mTOR, and reduced the expression of p-70. Taken together, these results suggest that UNBS5162 should be considered as a potent therapeutic anticancer agent that targets the PI3K/AKT signaling pathway.
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Affiliation(s)
- Fan Zhang
- Gastrointestinal Surgery Department, the First Affiliated Hospital of Jinan University, 613 Huangpu Avenue West, Guangzhou, 510630 PR China
| | - Hui-Zeng Lv
- Department 1 of General Surgery, the 5th Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Ji-Ming Liu
- Department 1 of General Surgery, the 5th Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Xiao-Yong Ye
- Department 1 of General Surgery, the 5th Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Cun-Chuan Wang
- Gastrointestinal Surgery Department, the First Affiliated Hospital of Jinan University, 613 Huangpu Avenue West, Guangzhou, 510630 PR China
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17
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Shakeri A, Cicero AFG, Panahi Y, Mohajeri M, Sahebkar A. Curcumin: A naturally occurring autophagy modulator. J Cell Physiol 2018; 234:5643-5654. [PMID: 30239005 DOI: 10.1002/jcp.27404] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 08/21/2018] [Indexed: 12/21/2022]
Abstract
Autophagy is a self-degradative process that plays a pivotal role in several medical conditions associated with infection, cancer, neurodegeneration, aging, and metabolic disorders. Its interplay with cancer development and treatment resistance is complicated and paramount for drug design since an autophagic response can lead to tumor suppression by enhancing cellular integrity and tumorigenesis by improving tumor cell survival. In addition, autophagy denotes the cellular ability of adapting to stress though it may end up in apoptosis activation when cells are exposed to a very powerful stress. Induction of autophagy is a therapeutic option in cancer and many anticancer drugs have been developed to this aim. Curcumin as a hydrophobic polyphenol compound extracted from the known spice turmeric has different pharmacological effects in both in vitro and in vivo models. Many reports exist reporting that curcumin is capable of triggering autophagy in several cancer cells. In this review, we will focus on how curcumin can target autophagy in different cellular settings that may extend our understanding of new pharmacological agents to overcome relevant diseases.
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Affiliation(s)
- Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arrigo F G Cicero
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Yunes Panahi
- Chemical Injuries Research Center, System Biology and Poisoning Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohammad Mohajeri
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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18
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Battling for Ribosomes: Translational Control at the Forefront of the Antiviral Response. J Mol Biol 2018; 430:1965-1992. [PMID: 29746850 DOI: 10.1016/j.jmb.2018.04.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/24/2018] [Accepted: 04/27/2018] [Indexed: 01/05/2023]
Abstract
In the early stages of infection, gaining control of the cellular protein synthesis machinery including its ribosomes is the ultimate combat objective for a virus. To successfully replicate, viruses unequivocally need to usurp and redeploy this machinery for translation of their own mRNA. In response, the host triggers global shutdown of translation while paradoxically allowing swift synthesis of antiviral proteins as a strategy to limit collateral damage. This fundamental conflict at the level of translational control defines the outcome of infection. As part of this special issue on molecular mechanisms of early virus-host cell interactions, we review the current state of knowledge regarding translational control during viral infection with specific emphasis on protein kinase RNA-activated and mammalian target of rapamycin-mediated mechanisms. We also describe recent technological advances that will allow unprecedented insight into how viruses and host cells battle for ribosomes.
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19
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Tao J, Li B, Chen J, Zhang C, Ma Y, Zhu G, Liu H. N pro His49 and E rns Lys412 mutations in pig bovine viral diarrhea virus type 2 synergistically enhance the cellular antiviral response. Virus Genes 2017; 54:57-66. [PMID: 28852929 DOI: 10.1007/s11262-017-1506-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 08/17/2017] [Indexed: 01/01/2023]
Abstract
Type I interferons are major components of the innate immune response of hosts, and accordingly, many viruses have evolved mechanisms to modulate the host response during infection. Bovine viral diarrhea virus (BVDV) nonstructural protein Npro and structural protein Erns play important roles in inhibiting type I interferon. The aim of this study was to explore the epistatic effects of amino acid mutations in Npro and Erns in porcine ST cells to characterize the immune response induced by BVDV-2. Plasmids with mutant amino acids His49 (H49), Glu22 (E22) in Npro, and His300 (H300), Lys412 (K412) in Erns which had been changed to Alanine (A) had similar effects on type I interferon production in MDBK and ST cells, but resulted in much greater ISG15, OAS, and Mx production in ST cells. The rescued vASH/NproH49ErnsK412 virus showed the best efficiency with respect to modulating antiviral cytokines, indicating that the amino acids Npro H49 and Erns K412 had highly synergistic effects in abolishing the ability to inhibit type I interferon. These findings have importance practical implications owing to the increasing prevalence of BVDV infections, including persistent infections, in domestic pigs.
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Affiliation(s)
- Jie Tao
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China.,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China
| | - Benqiang Li
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China.,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China
| | - Jinghua Chen
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China.,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China
| | - Chunling Zhang
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China.,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China
| | - Yufei Ma
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China.,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Huili Liu
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Center of Breeding Pig, BeiDi Rd 2901, Shanghai, 201106, China. .,Municipal Key Laboratory of Agri-Genetics and Breedings, Shanghai, 201106, China.
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20
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Zhu L, Yuan C, Huang L, Ding X, Wang J, Zhang D, Zhu G. The activation of p38MAPK and JNK pathways in bovine herpesvirus 1 infected MDBK cells. Vet Res 2016; 47:91. [PMID: 27590675 PMCID: PMC5010765 DOI: 10.1186/s13567-016-0377-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/28/2016] [Indexed: 12/31/2022] Open
Abstract
We have shown previously that BHV-1 infection activates Erk1/2 signaling. Here, we show that BHV-1 provoked an early-stage transient and late-stage sustained activation of JNK, p38MAPK and c-Jun signaling in MDBK cells. C-Jun phosphorylation was dependent on JNK. These early events were partially due to the viral entry process. Unexpectedly, reactive oxygen species were not involved in the later activation phase. Interestingly, only activated JNK facilitated the viral multiplication identified through both chemical inhibitor and siRNA. Collectively, this study provides insight into our understanding of early stages of BHV-1 infection.
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Affiliation(s)
- Liqian Zhu
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Chen Yuan
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Liyuan Huang
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Xiuyan Ding
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China.,The Test Center of Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Jianye Wang
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Dong Zhang
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China.
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21
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Zhu L, Yuan C, Zhang D, Ma Y, Ding X, Zhu G. BHV-1 induced oxidative stress contributes to mitochondrial dysfunction in MDBK cells. Vet Res 2016; 47:47. [PMID: 27000063 PMCID: PMC4802597 DOI: 10.1186/s13567-016-0332-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 03/04/2016] [Indexed: 12/31/2022] Open
Abstract
The levels of cellular reactive oxygen species (ROS) and ATP as well as the mitochondrial membrane potential (MMP) in response to bovine herpesvirus 1 (BHV-1) infection of MDBK cells were measured, respectively. BHV-1 infection increased ROS production which depended on viral entry, and de novo protein expression and/or DNA replication. Vice versa, excessive ROS was required for efficient viral replication. Levels of both ATP and MMP were significantly decreased after BHV-1 infection. Interestingly, the loss of MMP was ameliorated by ROS depression. Collectively, ROS dependent mitochondrial damage and ultimately disruption of energy metabolism (ATP depletion) are a potential pathogenic mechanism for BHV-1 infection.
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Affiliation(s)
- Liqian Zhu
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Chen Yuan
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Dong Zhang
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Yan Ma
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Xiuyan Ding
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China.,The Test Center of Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009, China.
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22
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Zhu L, Yuan C, Ma Y, Ding X, Zhu G, Zhu Q. Anti-inflammatory activities of phospholipase C inhibitor U73122: Inhibition of monocyte-to-macrophage transformation and LPS-induced pro-inflammatory cytokine expression. Int Immunopharmacol 2015; 29:622-627. [PMID: 26428848 DOI: 10.1016/j.intimp.2015.09.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 09/13/2015] [Accepted: 09/23/2015] [Indexed: 11/16/2022]
Abstract
A wide range of biological processes are controlled by phospholipase C (PLC)/Ca(2+) signaling, which could be blocked by PLC-specific inhibitor U73122. Whether inhibition of PLC with chemical inhibitor U73122 affects the inflammatory response in monocytes/macrophages is currently unknown. In this study, we demonstrated that U73122 inhibited PMA-induced in vitro differentiation of human promonocytic U937 cells into macrophages as reflected by the reduction of cell adherence and the decreased expression of macrophage specific marker CD163. It is possible that U73122 blocked PMA-induced adhesion of U937 cells partially by down regulation and inactivation of both Pyk2 and paxillin signaling. Furthermore, the expression of LPS-induced pro-inflammatory cytokines TNF-α and IL-1β was significantly blocked by U73122 in both dU937 cells and mouse primary peritoneal macrophages. These results suggest that PLC is involved in the sophisticated inflammatory response by monocytes/macrophages, and thereby chemical antagonists of PLC may be potential agents for the suppression of inflammatory response.
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Affiliation(s)
- Liqian Zhu
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Chen Yuan
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Yan Ma
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Xiuyan Ding
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 48 Wenhui East Road, Yangzhou 225009, China
| | - Qiyun Zhu
- The State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Chengguan District, Lanzhou 730046, Gansu, China.
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23
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Cuddington BP, Mossman KL. Oncolytic bovine herpesvirus type 1 as a broad spectrum cancer therapeutic. Curr Opin Virol 2015; 13:11-6. [PMID: 25846987 DOI: 10.1016/j.coviro.2015.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
Abstract
Oncolytic viruses selectively replicate in tumor cells and elicit antitumor effects in vivo by both direct and indirect methods. They are attractive avenues of cancer therapy due to the absence of toxic side effects often seen in current treatment modalities. Bovine herpesvirus type 1 (BHV-1) holds promise as a broad-spectrum oncolytic vector that is able to infect and kill human tumor cells from a variety of histological origins, including cancer-initiating cells. In the majority of cases, BHV-1 elicits tumor cell death in the absence of a productive infection. In vivo, BHV-1 affects the incidence of secondary lesions in cotton rats bearing subcutaneous breast adenocarcinomas. These recent studies contribute to the characterization of BHV-1 as an oncolytic virus.
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Affiliation(s)
- Breanne P Cuddington
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
| | - Karen L Mossman
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.
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Cheng K, Escalon BL, Robert J, Chinchar VG, Garcia-Reyero N. Differential transcription of fathead minnow immune-related genes following infection with frog virus 3, an emerging pathogen of ectothermic vertebrates. Virology 2014; 456-457:77-86. [PMID: 24889227 DOI: 10.1016/j.virol.2014.03.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/03/2014] [Accepted: 03/13/2014] [Indexed: 12/24/2022]
Abstract
Frog virus 3 (FV3) and other ranaviruses are responsible for die-offs involving wild, farmed, and captive amphibians, fish, and reptiles. To ascertain which elements of the immune system respond to infection, we explored transcriptional responses following infection of fathead minnow cells with either wild type (wt) FV3 or a knock out (KO) mutant targeting the 18 kDa immediate early gene (18K). At 8h post infection we observed marked upregulation of multiple transcripts encoding proteins affecting innate and acquired immunity. Sequences expressed 4-fold or higher in wt-infected cells included transcripts encoding interferon (IFN), IFN regulatory factors (IRFs), IFN stimulated genes (ISGs) such as Mx and MHC class I, and interleukins IL-1β, IL-8, IL-17C and IL-12. Cells infected with the 18K KO mutant (∆18K) showed qualitative differences and lower levels of induction. Collectively, these results indicate that ranavirus infection induced expression of multiple cellular genes affecting both innate and acquired immunity.
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Affiliation(s)
- Kwang Cheng
- Department of Microbiology, University of Mississippi Medical Center, Jackson, MS 39211, USA
| | - B Lynn Escalon
- US Army Corps of Engineers, Engineering Research and Development Center, Vicksburg, MS 39180, USA
| | - Jacques Robert
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - V Gregory Chinchar
- Department of Microbiology, University of Mississippi Medical Center, Jackson, MS 39211, USA.
| | - Natàlia Garcia-Reyero
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Starkville, MS 39759, USA
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Montagnaro S, Ciarcia R, Pagnini F, De Martino L, Puzio MV, Granato GE, Avino F, Pagnini U, Iovane G, Giordano A. Bovine herpesvirus type 4 infection modulates autophagy in a permissive cell line. J Cell Biochem 2013; 114:1529-35. [PMID: 23297091 DOI: 10.1002/jcb.24494] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 12/18/2012] [Indexed: 12/19/2022]
Abstract
Bovine herpesvirus type 4 (BoHV-4), like other herpesviruses, induces a series of alterations in the host cell that modify the intracellular environment in favor of viral replication, survival and spread. This research examined the impact of BoHV-4 infection on autophagy in BoHV-4 infected Madin Darby bovine kidney (MDBK) cells. Protein extracts of BoHV-4 infected and control MDBK cells were subjected to Western blot. The concentrations of the autophagy and apoptosis-related proteins Beclin 1, p21, PI3 kinase, Akt1/2, mTOR, phospho mTOR, p62 and the light chain three (LC3) were normalized to the actin level and expressed as the densitometric ratio. Western blot analysis of virus-infected cells revealed that autophagic degradation pathway was induced in the late phase of BoHV-4 infection. After 48 h post-infection the protein LC3II, which is essential for autophagy was found to be markedly increased, while infection of MDBK cells with BoHV-4 resulted in a depletion of p62 levels. Becline 1, PI3 kinase, Akt1/2 and p21 expression increased between 24 and 48 h post-infection. Surprisingly, mTOR and its phosphorylated form, which are negative regulators of autophagy, also increased after 24 h post-infection. In conclusion, our findings suggest that BoHV-4 has developed mechanisms for modulation of autophagy that are probably part of a strategy designed to enhance viral replication and to evade the immune system. Additional studies on the relationship between autophagy and BoHV-4 replication and survival, in both lytic and latent replication phases, are needed to understand the role of autophagy in BoHV-4 pathogenesis.
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Affiliation(s)
- Serena Montagnaro
- Department of Pathology and Animal Health, School of Veterinary Medicine, University of Naples, Naples, Italy
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Control of the PI3K/Akt pathway by porcine reproductive and respiratory syndrome virus. Arch Virol 2013; 158:1227-34. [PMID: 23381397 PMCID: PMC7087347 DOI: 10.1007/s00705-013-1620-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 12/14/2012] [Indexed: 12/19/2022]
Abstract
Phosphatidylinositol-3-kinase (PI3K)/Akt is an important cellular pathway that has been shown to participate in various replication steps of multiple viruses. In the present study, we compared the phosphorylation status of Akt during infection of MARC-145 cells and porcine alveolar macrophages (PAMs) with highly pathogenic PRRSV (HP-PRRSV) strain HuN4. We observed that biphasic activation of Akt was induced in at both the early stage (5, 15 and 30 min postinfection) and the late stage (12 and 24 h postinfection) of HP-PRRSV infection of MARC-145 cells, while an early-phase activation of Akt was found exclusively in virus-infected PAMs in vitro. Analysis with the PI3K-specific inhibitor LY294002 confirmed that PI3K acted as the upstream activator for the virus-induced activation of Akt. UV-irradiation-inactivated virus still induced the early event in PAMs but not in MARC-145 cells, suggesting that different mechanisms are employed for the early-stage induction of phosphorylated Akt within different cell cultures. We further demonstrated that FoxO1 and Bad, which serve as downstream targets of Akt, were phosphorylated in virus-infected MARC-145 cells. Moreover, the suppression of phosphorylated Akt with LY294002 significantly inhibited the virus-induced cytopathic effect (CPE) on MARC-145 cells, but it had a negligible effect on virus propagation. Collectively, our data provide new evidence of a novel role for the PI3K/Akt pathway in PRRSV infection of MARC-145 cells.
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Activation of the phosphatidylinositol 3-kinase/Akt signaling pathway during porcine circovirus type 2 infection facilitates cell survival and viral replication. J Virol 2012; 86:13589-97. [PMID: 23035228 DOI: 10.1128/jvi.01697-12] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Virus infection activates host cellular signaling pathways, including the phosphatidylinositol 3-kinase (PI3K)/Akt pathway, which regulates diverse cellular activities related to cell growth, survival, and apoptosis. The present study demonstrated for the first time that porcine circovirus type 2 (PCV2), a major causative agent of postweaning multisystemic wasting syndrome, which is an emerging and important swine disease, can transiently induce the PI3K/Akt pathway in cultured cells at an early step during PCV2 infection. Activation of the PI3K/Akt signal was also induced by UV-irradiated PCV2, indicating that virus replication was not required for this induction. Inhibition of PI3K activation leads to reduced virus yield, which is associated with decreased viral DNA replication and lower virus protein expression. However, inhibition of PI3K activation greatly enhanced apoptotic responses as evidenced by the cleavage of poly-ADP ribose polymerase and caspase-3 as well as DNA fragmentation using terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end-labeling staining during the early stage of PCV2 infection. Furthermore, the pancaspase inhibitor zVAD.fmk alleviated the reduction in Akt phosphorylation levels by inhibiting PI3K activation, indicating that the signaling promotes cell survival and thereby favors viral replication. These results reveal that an antiapoptotic role for the PI3K/Akt pathway induced by PCV2 infection to suppress premature apoptosis for improved virus growth after infection, extending our understanding of the molecular mechanism of PCV2 infection.
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