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Zhang H, Wang H, An Y, Chen Z. Construction and application of adenoviral vectors. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102027. [PMID: 37808925 PMCID: PMC10556817 DOI: 10.1016/j.omtn.2023.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Adenoviral vectors have been widely used as vaccine candidates or potential vaccine candidates against infectious diseases due to the convenience of genome manipulation, their ability to accommodate large exogenous gene fragments, easy access of obtaining high-titer of virus, and high efficiency of transduction. At the same time, adenoviral vectors have also been used extensively in clinical research for cancer gene therapy and treatment of diseases caused by a single gene defect. However, application of adenovirus also faces a series of challenges such as poor targeting, strong immune response against the vector itself, and they cannot be used repeatedly. It is believed that these problems will be solved gradually with further research and technological development in related fields. Here, we review the construction methods of adenoviral vectors, including "gutless" adenovirus and discuss application of adenoviral vectors as prophylactic vaccines for infectious pathogens and their application prospects as therapeutic vaccines for cancer and other kinds of chronic infectious disease such as human papillomavirus, hepatitis B virus, and hepatitis C virus.
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Affiliation(s)
- Hongbo Zhang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Hongdan Wang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Youcai An
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Ze Chen
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
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2
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Sayedahmed EE, Elshafie NO, Zhang G, Mohammed SI, Sambhara S, Mittal SK. Enhancement of mucosal innate and adaptive immunity following intranasal immunization of mice with a bovine adenoviral vector. Front Immunol 2023; 14:1305937. [PMID: 38077380 PMCID: PMC10702558 DOI: 10.3389/fimmu.2023.1305937] [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: 10/02/2023] [Accepted: 11/01/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction Nonhuman adenoviral (AdV) gene delivery platforms have significant value due to their ability to elude preexisting AdV vector immunity in most individuals. Previously, we have demonstrated that intranasal (IN) immunization of mice with BAd-H5HA, a bovine AdV type 3 (BAdV3) vector expressing H5N1 influenza virus hemagglutinin (HA), resulted in enhanced humoral and cell-mediated immune responses. The BAd-H5HA IN immunization resulted in complete protection following the challenge with an antigenically distinct H5N1 virus compared to the mouse group similarly immunized with HAd-H5HA, a human AdV type 5 (HAdV5) vector expressing HA. Methods Here, we attempted to determine the activation of innate immune responses in the lungs of mice inoculated intranasally with BAd-H5HA compared to the HAd-H5HA-inoculated group. Results RNA-Seq analyses of the lung tissues revealed differential expression (DE) of genes involved in innate and adaptive immunity in animals immunized with BAd-H5HA. The top ten enhanced genes were verified by RT-PCR. Consistently, there were transient increases in the levels of cytokines (IL-1α, IL-1β, IL-5, TNF- α, LIF, IL-17, G-CSF, MIP-1β, MCP-1, MIP-2, and GM-CSF) and toll-like receptors in the lungs of the group inoculated with BAdV vectors compared to that of the HAdV vector group. Conclusion These results demonstrate that the BAdV vectors induce enhanced innate and adaptive immunity-related factors compared to HAdV vectors in mice. Thus, the BAdV vector platform could be an excellent gene delivery system for recombinant vaccines and cancer immunotherapy.
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Affiliation(s)
- Ekramy E. Sayedahmed
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Diseases, and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Nelly O. Elshafie
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Diseases, and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - GuangJun Zhang
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Diseases, and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Sulma I. Mohammed
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Diseases, and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Suryaprakash Sambhara
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Suresh K. Mittal
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Diseases, and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
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Sayedahmed EE, Araújo MV, Silva-Pereira TT, Chothe SK, Elkashif A, Alhashimi M, Wang WC, Santos AP, Nair MS, Gontu A, Nissly R, Francisco de Souza Filho A, Tavares MS, Ayupe MC, Salgado CL, Donizetti de Oliveira Candido É, Leal Oliveira DB, Durigon EL, Heinemann MB, Morais da Fonseca D, Jagannath C, Sá Guimarães AM, Kuchipudi SV, Mittal SK. Impact of an autophagy-inducing peptide on immunogenicity and protection efficacy of an adenovirus-vectored SARS-CoV-2 vaccine. Mol Ther Methods Clin Dev 2023; 30:194-207. [PMID: 37502665 PMCID: PMC10299838 DOI: 10.1016/j.omtm.2023.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023]
Abstract
Because of continual generation of new variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is critical to design the next generation of vaccines to combat the threat posed by SARS-CoV-2 variants. We developed human adenovirus (HAd) vector-based vaccines (HAd-Spike/C5 and HAd-Spike) that express the whole Spike (S) protein of SARS-CoV-2 with or without autophagy-inducing peptide C5 (AIP-C5), respectively. Mice or golden Syrian hamsters immunized intranasally (i.n.) with HAd-Spike/C5 induced similar levels of S-specific humoral immune responses and significantly higher levels of S-specific cell-mediated immune (CMI) responses compared with HAd-Spike vaccinated groups. These results indicated that inclusion of AIP-C5 induced enhanced S-specific CMI responses and similar levels of virus-neutralizing titers against SARS-CoV-2 variants. To investigate the protection efficacy, golden Syrian hamsters immunized i.n. either with HAd-Spike/C5 or HAd-Spike were challenged with SARS-CoV-2. The lungs and nasal turbinates were collected 3, 5, 7, and 14 days post challenge. Significant reductions in morbidity, virus titers, and lung histopathological scores were observed in immunized groups compared with the mock- or empty vector-inoculated groups. Overall, slightly better protection was seen in the HAd-Spike/C5 group compared with the HAd-Spike group.
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Affiliation(s)
- Ekramy E. Sayedahmed
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marcelo Valdemir Araújo
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Butantan Institute, São Paulo, Brazil
| | - Taiana Tainá Silva-Pereira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Shubhada K. Chothe
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ahmed Elkashif
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marwa Alhashimi
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Wen-Chien Wang
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Andrea P. Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ruth Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | | | - Mariana Silva Tavares
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marina Caçador Ayupe
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Caio Loureiro Salgado
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Edison Luiz Durigon
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcos Bryan Heinemann
- Department of Preventive Veterinary Medicine and Animal Health, College of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Denise Morais da Fonseca
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Center for Infectious Diseases and Translational Medicine, Houston Methodist Research Institute, Houston, TX, USA
- Weill Cornell Medical College, New York, NY, USA
| | - Ana Marcia Sá Guimarães
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Suresh K. Mittal
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
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Wang WC, Sayedahmed EE, Mittal SK. Significance of Preexisting Vector Immunity and Activation of Innate Responses for Adenoviral Vector-Based Therapy. Viruses 2022; 14:v14122727. [PMID: 36560730 PMCID: PMC9787786 DOI: 10.3390/v14122727] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
An adenoviral (AdV)-based vector system is a promising platform for vaccine development and gene therapy applications. Administration of an AdV vector elicits robust innate immunity, leading to the development of humoral and cellular immune responses against the vector and the transgene antigen, if applicable. The use of high doses (1011-1013 virus particles) of an AdV vector, especially for gene therapy applications, could lead to vector toxicity due to excessive levels of innate immune responses, vector interactions with blood factors, or high levels of vector transduction in the liver and spleen. Additionally, the high prevalence of AdV infections in humans or the first inoculation with the AdV vector result in the development of vector-specific immune responses, popularly known as preexisting vector immunity. It significantly reduces the vector efficiency following the use of an AdV vector that is prone to preexisting vector immunity. Several approaches have been developed to overcome this problem. The utilization of rare human AdV types or nonhuman AdVs is the primary strategy to evade preexisting vector immunity. The use of heterologous viral vectors, capsid modification, and vector encapsulation are alternative methods to evade vector immunity. The vectors can be optimized for clinical applications with comprehensive knowledge of AdV vector immunity, toxicity, and circumvention strategies.
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Khan A, Sayedahmed EE, Singh VK, Mishra A, Dorta-Estremera S, Nookala S, Canaday DH, Chen M, Wang J, Sastry KJ, Mittal SK, Jagannath C. A recombinant bovine adenoviral mucosal vaccine expressing mycobacterial antigen-85B generates robust protection against tuberculosis in mice. Cell Rep Med 2021; 2:100372. [PMID: 34467249 PMCID: PMC8385328 DOI: 10.1016/j.xcrm.2021.100372] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/16/2021] [Accepted: 07/19/2021] [Indexed: 02/07/2023]
Abstract
Although the BCG vaccine offers partial protection, tuberculosis remains a leading cause of infectious disease death, killing ∼1.5 million people annually. We developed mucosal vaccines expressing the autophagy-inducing peptide C5 and mycobacterial Ag85B-p25 epitope using replication-defective human adenovirus (HAdv85C5) and bovine adenovirus (BAdv85C5) vectors. BAdv85C5-infected dendritic cells (DCs) expressed a robust transcriptome of genes regulating antigen processing compared to HAdv85C5-infected DCs. BAdv85C5-infected DCs showed enhanced galectin-3/8 and autophagy-dependent in vitro Ag85B-p25 epitope presentation to CD4 T cells. BCG-vaccinated mice were intranasally boosted using HAdv85C5 or BAdv85C5 followed by infection using aerosolized Mycobacterium tuberculosis (Mtb). BAdv85C5 protected mice against tuberculosis both as a booster after BCG vaccine (>1.4-log10 reduction in Mtb lung burden) and as a single intranasal dose (>0.5-log10 reduction). Protection was associated with robust CD4 and CD8 effector (TEM), central memory (TCM), and CD103+/CD69+ lung-resident memory (TRM) T cell expansion, revealing BAdv85C5 as a promising mucosal vaccine for tuberculosis.
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Affiliation(s)
- Arshad Khan
- Department of Pathology and Genomic Medicine, Houston Methodist Academic Institute, Houston Methodist Research Institute & Weill Cornell Medical College, Houston, TX, USA
| | - Ekramy E. Sayedahmed
- Department of Comparative Pathobiology and Purdue Institute of Inflammation, Immunology, and Infectious Disease, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Vipul K. Singh
- Department of Pathology and Genomic Medicine, Houston Methodist Academic Institute, Houston Methodist Research Institute & Weill Cornell Medical College, Houston, TX, USA
| | - Abhishek Mishra
- Department of Pathology and Genomic Medicine, Houston Methodist Academic Institute, Houston Methodist Research Institute & Weill Cornell Medical College, Houston, TX, USA
| | | | - Sita Nookala
- Department of Thoracic Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - David H. Canaday
- Department of Medicine, Case Western Reserve University and Cleveland Veterans Affairs, Cleveland, OH, USA
| | - Min Chen
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Jin Wang
- Immunobiology and Transplant Science Center, Houston Methodist Research Institute, and Department of Surgery, Weill Cornell Medical College, Houston, TX, USA
| | - K. Jagannadha Sastry
- Department of Thoracic Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Suresh K. Mittal
- Department of Comparative Pathobiology and Purdue Institute of Inflammation, Immunology, and Infectious Disease, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Houston Methodist Academic Institute, Houston Methodist Research Institute & Weill Cornell Medical College, Houston, TX, USA
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Alhashimi M, Elkashif A, Sayedahmed EE, Mittal SK. Nonhuman Adenoviral Vector-Based Platforms and Their Utility in Designing Next Generation of Vaccines for Infectious Diseases. Viruses 2021; 13:1493. [PMID: 34452358 PMCID: PMC8402644 DOI: 10.3390/v13081493] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 01/01/2023] Open
Abstract
Several human adenoviral (Ad) vectors have been developed for vaccine delivery owing to their numerous advantages, including the feasibility of different vector designs, the robustness of elicited immune responses, safety, and scalability. To expand the repertoire of Ad vectors for receptor usage and circumvention of Ad vector immunity, the use of less prevalent human Ad types or nonhuman Ads were explored for vector design. Notably, many nonhuman Ad vectors have shown great promise in preclinical and clinical studies as vectors for vaccine delivery. This review describes the key features of several nonhuman Ad vector platforms and their implications in developing effective vaccines against infectious diseases.
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Affiliation(s)
| | | | | | - Suresh K. Mittal
- Immunology and Infectious Disease, and Purdue University Center for Cancer Research, Department of Comparative Pathobiology, Purdue Institute for Inflammation, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907-2027, USA; (M.A.); (A.E.); (E.E.S.)
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7
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Mahsoub HM, Yuan L, Pierson FW. Turkey adenovirus 3, a siadenovirus, uses sialic acid on N-linked glycoproteins as a cellular receptor. J Gen Virol 2021; 101:760-771. [PMID: 32459612 DOI: 10.1099/jgv.0.001429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Turkey adenovirus 3 (TAdV-3) is the causative agent of an immune-mediated disease in turkeys, haemorrhagic enteritis, through targeting B lymphocytes. In the present study, we investigated the role of sialic acid in TAdV-3 entry and characterized the structural components of TAdV-3 receptor(s) on RP19, B lymphoblastoid cells. Removal of the cell-surface sialic acids by neuraminidases or blocking of sialic acids by wheat germ agglutinin lectin reduced virus infection. Pre-incubation of cells with Maackia amurensis lectin or Sambucus nigra agglutinin resulted in virus reduction, suggesting that TAdV-3 uses both α2,3-linked and α2,6-linked sialic acids as attachment receptor. Virus infectivity data from RP19 cells treated with sodium periodate, proteases (trypsin or bromelain) or metabolic inhibitors (dl-threo-1-phenyl-2-decanoylamino-3-morpholino-1-propanol, tunicamycin, or benzyl N-acetyl-α-d-galactosaminide) indicated that N-linked, but not O-linked, carbohydrates are part of the sialylated receptor and they are likely based on a membrane glycoprotein, rather than a glycolipid. Furthermore, our data, in conjunction with previous findings, implies that the secondary receptor for TAdV-3 is a protein molecule since the inhibition of glycolipid biosynthesis did not affect the virus infection, which was rather reduced by protease treatment. We can conclude that terminal sialic acids attached to N-linked membrane glycoproteins on B cells are used for virus attachment and are essential for successful virus infection.
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Affiliation(s)
- Hassan M Mahsoub
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA.,Poultry Production Department, Faculty of Agriculture, Alexandria University, El-Shatby, Alexandria 21545, Egypt
| | - Lijuan Yuan
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA
| | - F William Pierson
- Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA
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Aguilar-Hernández N, Meyer L, López S, DuBois RM, Arias CF. Protein Disulfide Isomerase A4 Is Involved in Genome Uncoating during Human Astrovirus Cell Entry. Viruses 2020; 13:v13010053. [PMID: 33396308 PMCID: PMC7824429 DOI: 10.3390/v13010053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
Although human astroviruses (HAstVs) are important agents of gastroenteritis in young children, the studies aimed at characterizing their biology have been limited, in particular regarding their cell entry process. It has been shown that HAstV serotype 8 enters human cells by a classical clathrin-mediated endocytosis pathway; however, the cell receptor or other cell entry factors that may be relevant for an efficient viral infection are unknown. In this work we used a far-Western blotting approach to identify cellular proteins that interact with the recombinant capsid spike proteins of HAstV serotypes 1, 2, and 8, synthesized in Escherichia coli. We identified the 72 kDa protein disulfide isomerase A4 (PDIA4) as a binding partner for HAstV-1 and -8 spikes, but not for the HAstV-2 spike. In agreement with this observation, the PDI inhibitor 16F16 strongly blocked infection by HAstV serotypes 1 and 8, but not serotype 2. RNA interference of PDIA4 expression selectively blocked HAstV-8 infectivity. We also showed that the PDI activity does not affect virus binding or internalization but is required for uncoating of the viral genome.
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Affiliation(s)
- Nayeli Aguilar-Hernández
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca CP 62210, Mexico; (N.A.-H.); (S.L.)
| | - Lena Meyer
- Department of Biomolecular Engineering, University of California, Santa Cruz, CA 95064, USA; (L.M.); (R.M.D.)
| | - Susana López
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca CP 62210, Mexico; (N.A.-H.); (S.L.)
| | - Rebecca M. DuBois
- Department of Biomolecular Engineering, University of California, Santa Cruz, CA 95064, USA; (L.M.); (R.M.D.)
| | - Carlos F. Arias
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca CP 62210, Mexico; (N.A.-H.); (S.L.)
- Correspondence:
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9
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Khosa S, Bravo Araya M, Griebel P, Arsic N, Tikoo SK. Bovine Adenovirus-3 Tropism for Bovine Leukocyte Sub-Populations. Viruses 2020; 12:E1431. [PMID: 33322850 PMCID: PMC7763465 DOI: 10.3390/v12121431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 11/20/2022] Open
Abstract
A number of characteristics including lack of virulence and the ability to grow to high titers, have made bovine adenovirus-3 (BAdV-3) a vector of choice for further development as a vaccine-delivery vehicle for cattle. Despite the importance of blood leukocytes, including dendritic cells (DC), in the induction of protective immune responses, little is known about the interaction between BAdV-3 and bovine blood leukocytes. Here, we demonstrate that compared to other leukocytes, bovine blood monocytes and neutrophils are significantly transduced by BAdV404a (BAdV-3, expressing enhanced yellow green fluorescent protein [EYFP]) at a MOI of 1-5 without a significant difference in the mean fluorescence of EYFP expression. Moreover, though expression of some BAdV-3-specific proteins was observed, no progeny virions were detected in the transduced monocytes or neutrophils. Interestingly, addition of the "RGD" motif at the C-terminus of BAdV-3 minor capsid protein pIX (BAV888) enhanced the ability of the virus to enter the monocytes without altering the tropism of BAdV-3. The increased uptake of BAV888 by monocytes was associated with a significant increase in viral genome copies and the abundance of EYFP and BAdV-3 19K transcripts compared to BAdV404a-transduced monocytes. Our results suggest that BAdV-3 efficiently transduces monocytes and neutrophils in the absence of viral replication. Moreover, RGD-modified capsid significantly increases vector uptake without affecting the initial interaction with monocytes.
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Affiliation(s)
- Sugandhika Khosa
- VIDO-InterVac., 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (S.K.); (M.B.A.); (P.G.); (N.A.)
- Vaccinology & Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
| | - Maria Bravo Araya
- VIDO-InterVac., 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (S.K.); (M.B.A.); (P.G.); (N.A.)
- Vaccinology & Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
| | - Philip Griebel
- VIDO-InterVac., 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (S.K.); (M.B.A.); (P.G.); (N.A.)
- Vaccinology & Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
| | - Natasa Arsic
- VIDO-InterVac., 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (S.K.); (M.B.A.); (P.G.); (N.A.)
| | - Suresh K. Tikoo
- VIDO-InterVac., 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (S.K.); (M.B.A.); (P.G.); (N.A.)
- Vaccinology & Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
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Sayedahmed EE, Mittal SK. A potential approach for assessing the quality of human and nonhuman adenoviral vector preparations. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2020; 84:314-318. [PMID: 33012981 PMCID: PMC7491003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/22/2019] [Indexed: 06/11/2023]
Abstract
Various types of human and nonhuman adenoviral (AdV) vectors are being used as gene delivery vectors in preclinical and clinical investigations. The objective of this study was to determine the ratio between the 2 best assays that would effectively address the variability in the titration of various AdV vectors in different cell lines and help obtain consistent results in preclinical and clinical studies using different AdV vectors. Here, we compared plaque-forming units, tissue culture infectious dose 50, focus-forming units (FFU), virus particle (VP) count, and genome copy number (GCN) of purified preparations of human AdV type C5, bovine AdV type 3, and porcine AdV type 3 to determine a correlation between infectious and noninfectious virus particles. Our results suggest that a VP:FFU or a VP:GCN ratio could accurately reflect the quality of an AdV preparation and could serve as an indicator to control batch-to-batch variability.
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Affiliation(s)
- Ekramy E Sayedahmed
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907, USA
| | - Suresh K Mittal
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease and Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907, USA
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11
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Sayedahmed EE, Elkashif A, Alhashimi M, Sambhara S, Mittal SK. Adenoviral Vector-Based Vaccine Platforms for Developing the Next Generation of Influenza Vaccines. Vaccines (Basel) 2020; 8:vaccines8040574. [PMID: 33019589 PMCID: PMC7712206 DOI: 10.3390/vaccines8040574] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/06/2020] [Accepted: 09/17/2020] [Indexed: 12/20/2022] Open
Abstract
Ever since the discovery of vaccines, many deadly diseases have been contained worldwide, ultimately culminating in the eradication of smallpox and polio, which represented significant medical achievements in human health. However, this does not account for the threat influenza poses on public health. The currently licensed seasonal influenza vaccines primarily confer excellent strain-specific protection. In addition to the seasonal influenza viruses, the emergence and spread of avian influenza pandemic viruses such as H5N1, H7N9, H7N7, and H9N2 to humans have highlighted the urgent need to adopt a new global preparedness for an influenza pandemic. It is vital to explore new strategies for the development of effective vaccines for pandemic and seasonal influenza viruses. The new vaccine approaches should provide durable and broad protection with the capability of large-scale vaccine production within a short time. The adenoviral (Ad) vector-based vaccine platform offers a robust egg-independent production system for manufacturing large numbers of influenza vaccines inexpensively in a short timeframe. In this review, we discuss the progress in the development of Ad vector-based influenza vaccines and their potential in designing a universal influenza vaccine.
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Affiliation(s)
- Ekramy E. Sayedahmed
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease, Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA; (E.E.S.); (A.E.); (M.A.)
| | - Ahmed Elkashif
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease, Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA; (E.E.S.); (A.E.); (M.A.)
| | - Marwa Alhashimi
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease, Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA; (E.E.S.); (A.E.); (M.A.)
| | - Suryaprakash Sambhara
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
- Correspondence: (S.S.); (S.K.M.)
| | - Suresh K. Mittal
- Department of Comparative Pathobiology, Purdue Institute for Immunology, Inflammation and Infectious Disease, Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA; (E.E.S.); (A.E.); (M.A.)
- Correspondence: (S.S.); (S.K.M.)
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12
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Pan Q, Wang J, Gao Y, Wang Q, Cui H, Liu C, Qi X, Zhang Y, Wang Y, Li K, Gao L, Liu A, Wang X. Identification of chicken CAR homology as a cellular receptor for the emerging highly pathogenic fowl adenovirus 4 via unique binding mechanism. Emerg Microbes Infect 2020; 9:586-596. [PMID: 32174269 PMCID: PMC7144210 DOI: 10.1080/22221751.2020.1736954] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since 2015, the prevalence of severe hepatitis-hydropericardium syndrome, which is caused by the novel genotype fowl adenovirus serotype 4 (FAdV-4), has increased in China and led to considerable economic losses. The replication cycle of FAdV-4, especially the emerging highly pathogenic novel genotype FAdV-4, remains largely unknown. The adenovirus fibre interacts with the cellular receptor as the initial step in adenovirus (AdV) infection. In our previous studies, the complete genome sequence showed that the fibre patterns of FAdV-4 were distinct from all other AdVs. Here, protein-blockage and antibody-neutralization assays were performed to confirm that the novel FAdV-4 short fibre was critical for binding to susceptible leghorn male hepatocellular (LMH) cells. Subsequently, fibre 1 was used as bait to investigate the receptor on LMH cells via mass spectrometry. The chicken coxsackie and adenovirus receptor (CAR) protein was confirmed as the novel FAdV-4 receptor in competition assays. We further identified the D2 domain of CAR (D2-CAR) as the active domain responsible for binding to the short fibre of the novel FAdV-4. Taken together, these findings demonstrate for the first time that the chicken CAR homolog is a cellular receptor for the novel FAdV-4, which facilitates viral entry by interacting with the viral short fibre through the D2 domain. Collectively, these findings provide an in-depth understanding of the mechanisms of the emerging novel genotype FAdV-4 invasion and pathogenesis.
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Affiliation(s)
- Qing Pan
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Jing Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Yulong Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Qi Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Hongyu Cui
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Changjun Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Xiaole Qi
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Yanping Zhang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Yongqiang Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Kai Li
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Li Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Aijing Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China
| | - Xiaomei Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China.,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, People's Republic of China
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13
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Thompson AJ, de Vries RP, Paulson JC. Virus recognition of glycan receptors. Curr Opin Virol 2019; 34:117-129. [PMID: 30849709 PMCID: PMC6476673 DOI: 10.1016/j.coviro.2019.01.004] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/24/2019] [Indexed: 01/17/2023]
Abstract
Attachment of viruses to cell-surface receptors is the initial step in infection. Many mammalian viruses have evolved to recognize receptors that are glycans on cell-surface glycoproteins or glycolipids. Although glycans are a ubiquitous component of mammalian cells, the types of terminal structures expressed vary among different cell-types and tissues, and even between comparable cells and tissues from different species, frequently leading to specific tissue and species tropisms as a direct consequence of glycan receptor recognition. Covering the majority of known virus families, this review provides an overview of mammalian viruses that use glycans as receptors, and their roles in determining in host recognition and tropism.
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Affiliation(s)
- Andrew J Thompson
- Departments of Molecular Medicine, Immunology & Microbiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Robert P de Vries
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - James C Paulson
- Departments of Molecular Medicine, Immunology & Microbiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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14
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Characterization of a novel species of adenovirus from Japanese microbat and role of CXADR as its entry factor. Sci Rep 2019; 9:573. [PMID: 30679679 PMCID: PMC6345744 DOI: 10.1038/s41598-018-37224-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 12/04/2018] [Indexed: 01/16/2023] Open
Abstract
Recently, bat adenoviruses (BtAdVs) of genus Mastadenovirus have been isolated from various bat species, some of them displaying a wide host range in cell culture. In this study, we isolated two BtAdVs from Japanese wild microbats. While one isolate was classified as Bat mastadenovirus A, the other was phylogenetically independent of other BtAdVs. It was rather related to, but serologically different from, canine adenoviruses. We propose that the latter, isolated from Asian parti-colored bat, should be assigned to a novel species of Bat mastadenovirus. Both isolates replicated in various mammalian cell lines, implying their wide cell tropism. To gain insight into cell tropism of these BtAdVs, we investigated the coxsackievirus and adenovirus receptor (CXADR) for virus entry to the cells. We prepared CXADR-knockout canine kidney cells and found that replication of BtAdVs was significantly hampered in these cells. For confirmation, their replication in canine CXADR-addback cells was rescued to the levels with the original cells. We also found that viral replication was corrected in human or bat CXADR-transduced cells to similar levels as in canine CXADR-addback cells. These results suggest that BtAdVs were able to use several mammalian-derived CXADRs as entry factors.
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Abstract
Various adenovirus (AdV) vector systems have proven to be lucrative options for gene delivery. They can serve as potential vaccine candidates for prevention of several common infectious diseases and hold the promise for gene therapy, especially for cancer. Several AdV vector-based therapies are currently at various stages of clinical trials worldwide, which make an immense interest of both the clinicians and researchers. Since these vectors are easy to manipulate, have broad tropism, and have the capability to yield high titers, this delivery system has a wide range of applications for different clinical settings. This chapter emphasizes on some of the current usages of AdV vectors and their production methods.
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Affiliation(s)
- Ekramy E Sayedahmed
- Department of Comparative Pathobiology, Purdue Institute for Inflammation, Immunology, and Infectious Disease, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Rashmi Kumari
- Department of Comparative Pathobiology, Purdue Institute for Inflammation, Immunology, and Infectious Disease, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Suresh K Mittal
- Department of Comparative Pathobiology, Purdue Institute for Inflammation, Immunology, and Infectious Disease, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
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16
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A Bovine Adenoviral Vector-Based H5N1 Influenza -Vaccine Provides Enhanced Immunogenicity and Protection at a Significantly Low Dose. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 10:210-222. [PMID: 30101154 PMCID: PMC6082999 DOI: 10.1016/j.omtm.2018.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 11/26/2022]
Abstract
Several human and nonhuman adenovirus (AdV) vectors including bovine AdV type 3 (BAdV-3) were developed as gene delivery vectors to supplement and/or elude human AdV (HAdV)-specific neutralizing antibodies (vector immunity). Here we evaluated the vaccine immunogenicity and efficacy of BAdV-3 vector (BAd-H5HA) expressing hemagglutinin (HA) of a H5N1 influenza virus in a dose escalation study in mice with the intranasal (IN) or intramuscular (IM) route of inoculation in comparison with the HAdV type C5 (HAdV-C5) vector (HAd-H5HA) expressing HA of a H5N1 influenza virus. Dose-related increases in the immune responses were clearly noticeable. A single IM inoculation with BAd-H5HA resulted in enhanced cellular immune responses compared with that of HAd-H5HA and conferred complete protection following challenge with a heterologous H5N1 virus at the dose of 3 × 107 plaque-forming units (PFUs), whereas a significant amount of influenza virus was detected in the lungs of mice immunized with 1 × 108 PFUs of HAd-H5HA. Similarly, compared with that of HAd-H5HA, a single IN inoculation with BAd-H5HA produced significantly enhanced humoral (HA-specific immunoglobulin [IgG] and its subclasses, as well as HA-specific IgA) and cellular immune responses, and conferred complete protection following challenge with a heterologous H5N1 virus. Complete protection with BAd-H5HA was observed with the lowest vaccine dose (1 × 106 PFUs), but similar protection with HAd-H5HA was observed at the highest vaccine dose (1 × 108 PFUs). These results suggest that at least 30-fold dose sparing can be achieved with BAd-H5HA vector compared with HAd-H5HA vaccine vector.
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Lasswitz L, Chandra N, Arnberg N, Gerold G. Glycomics and Proteomics Approaches to Investigate Early Adenovirus-Host Cell Interactions. J Mol Biol 2018; 430:1863-1882. [PMID: 29746851 PMCID: PMC7094377 DOI: 10.1016/j.jmb.2018.04.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/24/2018] [Accepted: 04/30/2018] [Indexed: 12/14/2022]
Abstract
Adenoviruses as most viruses rely on glycan and protein interactions to attach to and enter susceptible host cells. The Adenoviridae family comprises more than 80 human types and they differ in their attachment factor and receptor usage, which likely contributes to the diverse tropism of the different types. In the past years, methods to systematically identify glycan and protein interactions have advanced. In particular sensitivity, speed and coverage of mass spectrometric analyses allow for high-throughput identification of glycans and peptides separated by liquid chromatography. Also, developments in glycan microarray technologies have led to targeted, high-throughput screening and identification of glycan-based receptors. The mapping of cell surface interactions of the diverse adenovirus types has implications for cell, tissue, and species tropism as well as drug development. Here we review known adenovirus interactions with glycan- and protein-based receptors, as well as glycomics and proteomics strategies to identify yet elusive virus receptors and attachment factors. We finally discuss challenges, bottlenecks, and future research directions in the field of non-enveloped virus entry into host cells.
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Affiliation(s)
- Lisa Lasswitz
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Medical School Hannover and the Helmholtz Centre for Infection Research, 30625 Hannover, Germany
| | - Naresh Chandra
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90185 Umea, Sweden
| | - Niklas Arnberg
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90185 Umea, Sweden.
| | - Gisa Gerold
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Medical School Hannover and the Helmholtz Centre for Infection Research, 30625 Hannover, Germany; Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-90185 Umea, Sweden.
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18
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Deng X, Dai P, Yu M, Chen L, Zhu C, You X, Li L, Zeng Y. Cyclophilin A is the potential receptor of the Mycoplasma genitalium adhesion protein. Int J Med Microbiol 2018; 308:405-412. [DOI: 10.1016/j.ijmm.2018.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/16/2018] [Accepted: 03/05/2018] [Indexed: 11/29/2022] Open
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19
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Chi J, You L, Li P, Teng M, Zhang G, Luo J, Wang A. Surface IgM λ light chain is involved in the binding and infection of infectious bursal disease virus (IBDV) to DT40 cells. Virus Genes 2018; 54:236-245. [PMID: 29372383 DOI: 10.1007/s11262-018-1535-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 01/18/2018] [Indexed: 01/22/2023]
Abstract
Infectious bursal disease virus (IBDV) is an important immunosuppressive virus in chickens. Surface immunoglobulin M (sIgM)-bearing B lymphocytes act as the major targets of IBDV in the bursa of Fabricius, and sIgM may function as one of the membrane binding sites responsible for IBDV infection. Recently, using the virus overlay protein binding assay, the chicken λ light chain of sIgM was identified to specifically interact with IBDV in a virulence-independent manner in vitro. To further investigate sIgM λ light chain-mediated IBDV binding and infection in pre-B cells, the cell line DT40, which is susceptible to both pathogenic and attenuated IBDV, was used. Based on the RNA interference strategy, the DT40 cell line whose λ light chain of sIgM was stably knocked down, herein termed DT40LKD, was generated by the genomic integration of a specific small hairpin RNA and a green fluorescence protein co-expression construct. Flow cytometry analysis indicated that the binding of IBDV to DT40LKD cells was significantly reduced due to the loss of sIgM λ light chain. In particular, reduced viral replication was observed in IBDV-incubated DT40LKD cells, and no viral release into cell culture medium was detected by the IBDV rapid diagnostic strips. In addition, the rescue of sIgM λ light chain expression restored viral binding and replication in DT40LKD cells. These results show that sIgM λ light chain appears to be beneficial for IBDV attachment and infection, suggesting that sIgM acts as a binding site involved in IBDV infection.
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Affiliation(s)
- Jiaqi Chi
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, People's Republic of China
| | - Leiming You
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Peipei Li
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, No. 116 Huayuan Road, Zhengzhou, 450002, People's Republic of China
| | - Man Teng
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, No. 116 Huayuan Road, Zhengzhou, 450002, People's Republic of China
| | - Gaiping Zhang
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, No. 116 Huayuan Road, Zhengzhou, 450002, People's Republic of China
| | - Jun Luo
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, No. 116 Huayuan Road, Zhengzhou, 450002, People's Republic of China.
| | - Aiping Wang
- School of Life Sciences, Zhengzhou University, No. 100 Kexue Road, Zhengzhou, 450002, People's Republic of China.
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20
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Hassan AO, Vemula SV, Sharma A, Bangari DS, Mishra KK, Mittal SK. 155R is a novel structural protein of bovine adenovirus type 3, but it is not essential for virus replication. J Gen Virol 2017; 98:749-753. [PMID: 28086071 DOI: 10.1099/jgv.0.000707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bovine adenovirus (AdV) type 3 (BAdV-3) E1 region shares functional homology with E1 of human AdV type C5. Sequence analysis of the BAdV-3 E1 region revealed the presence of a novel 155R ORF that is not observed in other AdVs, on the lower strand antiparallel to a portion of the E1B region. The 155R gene products in BAdV-3-infected cells were identified by Northern blot, reverse transcriptase PCR followed by sequencing and Western blot analysis using the155R-specific antibody. 155R seems to be a late protein and is present in purified BAdV-3 particles. Replication kinetics of BAdV mutants with either one (BAdV/155R/mt1) or two (BAdV/155R/mt2) stop codons in the 155R ORF were comparable to those of BAdV-3, indicating that 155R is not essential for virus replication in cell culture. These results suggest that 155R-deleted BAdV-3 vectors could be generated in a cell line that fully complements BAdV-3 E1 functions.
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Affiliation(s)
- Ahmed O Hassan
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue Institute for Immunology, Inflammation and Infectious Diseases, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Sai V Vemula
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Present address: Merck Sharp and Dohme, West Point, PA, USA
| | - Anurag Sharma
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Present address: Department of Pediatrics, Weill Cornell Medical College, New York, NY, USA
| | - Dinesh S Bangari
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Present address: Department of Pathology, Sanofi Genzyme, 5 Mountain Road, Framingham, MA, USA
| | - Krishna K Mishra
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Present address: Department of Biology, Ivy Tech Community College, Lafayette, IN, USA
| | - Suresh K Mittal
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue Institute for Immunology, Inflammation and Infectious Diseases, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
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21
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Zhao X, Tikoo SK. Deletion of pV affects integrity of capsid causing defect in the infectivity of bovine adenovirus-3. J Gen Virol 2016; 97:2657-2667. [PMID: 27521148 DOI: 10.1099/jgv.0.000570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Members of the genus Mastadenovirus including bovine adenovirus 3 (BAdV-3) encode a genus-specific unique protein named pV. The pV encoded by BAdV-3 is a protein of 423 aa showing 40.9 % identity to pV of human adenovirus 2. Here, we report the construction and analysis of recombinant BAdV-3 (BAV.dV) containing deletion of pV. The BAV.dV could only be isolated in CRL.pV cells expressing pV, suggesting that pV appears essential for the infection of BAdV-3. Analysis of BAV.dV suggested that despite affecting some late gene expression in virus-infected cells, there was no significant difference in the incorporation of viral proteins in the mature virions. Moreover, analysis of mature virions revealed degraded capsids leading to change in morphology and infectivity of BAV.dV. Furthermore, analysis of the genome sequence of different clones of BAV.dV passaged in different cell lines revealed no mutations in core proteins pVII and pX\Mu suggesting that the replication defect may not be rescued. Our results suggest that pV is required for proper viral assembly of BAdV-3 as lack of pV produces aberrant capsids. Moreover, altered capsids lead to the production of non-infectious BAV.dV virions.
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Affiliation(s)
- Xin Zhao
- VIDO-InterVac, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada.,Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
| | - Suresh K Tikoo
- Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada.,Vaccinology & Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada.,VIDO-InterVac, University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada
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22
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Abstract
Many nonhuman adenoviruses (AdVs) of simian, bovine, porcine, canine, ovine, murine, and fowl origin are being developed as gene delivery systems for recombinant vaccines and gene therapy applications. In addition to circumventing preexisting human AdV (HAdV) immunity, nonhuman AdV vectors utilize coxsackievirus-adenovirus receptor or other receptors for vector internalization, thereby expanding the range of cell types that can be targeted. Nonhuman AdV vectors also provide excellent platforms for veterinary vaccines. A specific nonhuman AdV vector when used in its species of origin could provide an excellent animal model for evaluating the vector efficacy and pathogenesis. These vectors are useful in prime–boost approaches with other AdV vectors or with other gene delivery systems including DNA immunization and viral or bacterial vectors. When multiple vector inoculations are required, nonhuman AdV vectors could supplement HAdV or other viral vectors.
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Development of Novel Adenoviral Vectors to Overcome Challenges Observed With HAdV-5-based Constructs. Mol Ther 2015; 24:6-16. [PMID: 26478249 PMCID: PMC4754553 DOI: 10.1038/mt.2015.194] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/07/2015] [Indexed: 12/23/2022] Open
Abstract
Recombinant vectors based on human adenovirus serotype 5 (HAdV-5) have been extensively studied in preclinical models and clinical trials over the past two decades. However, the thorough understanding of the HAdV-5 interaction with human subjects has uncovered major concerns about its product applicability. High vector-associated toxicity and widespread preexisting immunity have been shown to significantly impede the effectiveness of HAdV-5–mediated gene transfer. It is therefore that the in-depth knowledge attained working on HAdV-5 is currently being used to develop alternative vectors. Here, we provide a comprehensive overview of data obtained in recent years disqualifying the HAdV-5 vector for systemic gene delivery as well as novel strategies being pursued to overcome the limitations observed with particular emphasis on the ongoing vectorization efforts to obtain vectors based on alternative serotypes.
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Abstract
UNLABELLED Nervous necrosis virus (NNV) is a devastating pathogen of cultured marine fish and has affected more than 40 fish species. NNV belongs to the betanodaviruses of Nodaviridae and is a nonenveloped icosahedral particle with 2 single-stranded positive-sense RNAs. To date, knowledge regarding NNV entry into the host cell remains limited, and no NNV-specific receptor protein has been published. Using grouper fin cell line GF-1 and purified NNV capsid protein in a virus overlay protein binding assay (VOPBA), grouper heat shock cognate protein 70 (GHSC70) and grouper voltage-dependent anion selective channel protein 2 (GVDAC2) were investigated as NNV receptor protein candidates. We cloned and sequenced the genes for GHSC70 and GVDAC2 and expressed them in Escherichia coli for antiserum preparation. Knockdown of the expression of GHSC70 and GVDAC2 genes with specific short interfering RNAs (siRNAs) significantly downregulated viral RNA expression in NNV-infected GF-1 cells. By performing an immunoprecipitation assay, we confirmed that GHSC70 interacted with NNV capsid protein, while VDAC2 did not. Immunofluorescence staining and flow cytometry analysis revealed the presence of the GHSC70 protein on the cell surface. After a blocking assay, we detected the NNV RNA2 levels after 1 h of adsorption to GF-1 cells; the level was significantly lower in the cells pretreated with the GHSC70 antiserum than in nontreated cells. Therefore, we suggest that GHSC70 participates in the NNV entry of GF-1 cells, likely functioning as an NNV receptor or coreceptor protein. IMPORTANCE Fish nodavirus has caused mass mortality of more than 40 fish species worldwide and resulted in huge economic losses in the past 20 years. Among the four genotypes of fish nodaviruses, the red-spotted grouper nervous necrosis virus (RGNNV) genotype exhibits the widest host range. In our previous study, we developed monoclonal antibodies with high neutralizing efficiency against grouper NNV in GF-1 cells, indicating that NNV-specific receptor(s) may exist on the GF-1 cell membrane. However, no NNV receptor protein has been published. In this study, we found GHSC70 to be an NNV receptor (or coreceptor) candidate through VOBPA and provided several lines of evidence demonstrating that GHSC70 protein has a role in the NNV entry step of GF-1 cells. To the best of our knowledge, this is the first report identifying grouper HSC70 and its role in NNV entry into GF-1 cells.
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Lopez-Gordo E, Podgorski II, Downes N, Alemany R. Circumventing antivector immunity: potential use of nonhuman adenoviral vectors. Hum Gene Ther 2014; 25:285-300. [PMID: 24499174 DOI: 10.1089/hum.2013.228] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Adenoviruses are efficient gene delivery vectors based on their ability to transduce a wide variety of cell types and drive high-level transient transgene expression. While there have been advances in modifying human adenoviral (HAdV) vectors to increase their safety profile, there are still pitfalls that need to be further addressed. Preexisting humoral and cellular immunity against common HAdV serotypes limits the efficacy of gene transfer and duration of transgene expression. As an alternative, nonhuman AdV (NHAdV) vectors can circumvent neutralizing antibodies against HAdVs in immunized mice and monkeys and in human sera, suggesting that NHAdV vectors could circumvent preexisting humoral immunity against HAdVs in a clinical setting. Consequently, there has been an increased interest in developing NHAdV vectors for gene delivery in humans. In this review, we outline the recent advances and limitations of HAdV vectors for gene therapy and describe examples of NHAdV vectors focusing on their immunogenicity, tropism, and potential as effective gene therapy vehicles.
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Affiliation(s)
- Estrella Lopez-Gordo
- 1 Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow , Glasgow G12 8TA, United Kingdom
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26
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Zhang W, Hua X, Shen Q, Yang S, Yin H, Cui L. Identification of genotype 4 Hepatitis E virus binding proteins on swine liver cells. Virol J 2011; 8:482. [PMID: 22029540 PMCID: PMC3219747 DOI: 10.1186/1743-422x-8-482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Accepted: 10/27/2011] [Indexed: 11/10/2022] Open
Abstract
Hepatitis E virus (HEV) is a zoonotic pathogen of which several species of animal were reported as reservoirs. Swine stands out as the major reservoir for HEV infection in humans, as suggested by the close genetic relationship of swine and human virus and cross-species infection of HEV. Up to now, the mechanism of cross-species infection of HEV from swine to humans is still unclear. This study sought to identify receptor element for genotype 4 HEV on swine liver cells using the viral overlay protein binding assay (VOPBA) technique and Mass Spectrometry fingerprinting. A single virus binding band with natural molecular weight about 55 kDa was observed, and mass spectrometry revealed that this virus binding band contained 31 different proteins. Infection inhibition assay suggested that this 55 kDa protein could prevent HEV from infecting its susceptible A549 cell line, which was further confirmed by the HEV genome detecting in the inoculated cells. Further research should be performed to elucidate the accurate receptor of HEV on the swine liver cells.
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Affiliation(s)
- Wen Zhang
- School of Agriculture and Biology, Shanghai JiaoTong University, 800 Dongchuan Road, Shanghai 200240, China
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27
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Sequential administration of bovine and human adenovirus vectors to overcome vector immunity in an immunocompetent mouse model of breast cancer. Virus Res 2011; 163:202-11. [PMID: 21971215 DOI: 10.1016/j.virusres.2011.09.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 09/20/2011] [Accepted: 09/20/2011] [Indexed: 11/24/2022]
Abstract
The potential of a bovine adenovirus serotype 3 (BAd3)-based vector to bypass the human adenoviral serotype 5 (HAd5)-specific neutralizing immune response was evaluated in an immunocompetent mouse model of breast cancer. Initially we monitored vector biodistribution, genome persistence, transgene expression, and potential toxicity of HAd-GFP [HAd5 vector expressing green fluorescent protein (GFP)] or BAd-GFP (BAd3 vector expressing GFP) in FVB/n mice bearing tumors. A comparable biodistribution pattern for BAd-GFP and HAd-GFP was evident. In addition, following the development of vector-specific immune responses, animals were inoculated intratumorally (i.t.) with HAd-GFP or BAd-GFP. HAd-GFP immunity did not hamper the transduction and persistence of BAd-GFP into the tumors and other organs, and, similarly, BAd-GFP immunity did not hamper the transduction and persistence of HAd-GFP. Both BAd3 and HAd5 vectors showed relatively higher transgene expression in the presence of heterologous vector immunity. In contrast, the homologous vector immunity was associated with a rapid vector clearance and decline in transgene expression levels. Histopathological changes in BAd-GFP inoculated animals were generally mild with some acute but recoverable hepatic perturbations. Overall, the data suggest the importance of BAd3 vectors for sequential vector administration in overcoming the vector immunity for cancer gene therapy.
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28
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Yi L, Lu J, Kung HF, He ML. The virology and developments toward control of human enterovirus 71. Crit Rev Microbiol 2011; 37:313-27. [PMID: 21651436 DOI: 10.3109/1040841x.2011.580723] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Enterovirus 71 (EV71), a member of the Enterovirus genus in the Picornaviridae family, was first recognized as a dermotrophic virus that usually cause mild, self-limiting hand-foot-and-mouth disease (HFMD). However, EV71 infection can sometimes induce a variety of severe neurological complications and even death. Current large outbreaks of EV71 make this virus being a major public health issue. Intense effort has been made to address its underlying pathogenesis and to develop effective means for combating EV71 infections. Here, we aimed to provide an overview of cellular mechanisms underlying EV71 infection and to assess potential agents for prevention and treatment of EV71 infections.
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Affiliation(s)
- Lina Yi
- Stanley Ho Center for Emerging Infectious Diseases, School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
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29
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Henaff D, Salinas S, Kremer EJ. An adenovirus traffic update: from receptor engagement to the nuclear pore. Future Microbiol 2011; 6:179-92. [PMID: 21366418 DOI: 10.2217/fmb.10.162] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Adenoviruses have a bipolar nature: they are ubiquitous pathogens that occasionally cause life-threatening diseases or they can be engineered into powerful gene transfer vectors. The goal of this article is to summarize the most recent advances in adenovirus receptor engagement, internalization, endosomal maturation, endosomal escape and trafficking to the nuclear pore. A better understanding of this initial part of the adenovirus lifecycle may identify new mechanistic-based treatments for adenovirus-induced diseases and help in the engineering of more efficient vectors.
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Affiliation(s)
- Daniel Henaff
- Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535, 34293 Montpellier, France
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30
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Paltrinieri S, Rossi G, Meregalli A, Stefanello D, Pecile A, Moretti P, Rondena M. Sialic acid and sialyltransferase activity in serum and tissues of dogs with mammary tumors. Vet Pathol 2011; 49:669-81. [PMID: 21427240 DOI: 10.1177/0300985811402842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In humans, the glycosylation pattern of serum and of membrane glycoproteins is associated with invasiveness of tumors: specifically, α2,6-sialylation and α2,3-sialylation are associated with metastasizing and nonmetastasizing tumors, respectively. In turn, the type of sialylation depends on the activity of α2,6 or α2,3 sialyltransferase (ST) enzymes. Because of the high prevalence of metastasizing tumors with biological behavior similar to the human counterpart, female dogs with metastasizing neoplasms could provide a good animal model for investigating the potential roles of sialic acid (Sia) and ST enzymes in the pathogenesis of metastatic tumors. The aims of this study were (1) to validate a solid-phase method based on lectin staining of serum and tissue homogenates to investigate sialylation and ST activity and (2) to compare the results obtained with this method and with lectin staining and to collect preliminary information on sialylation and ST activity in dogs with (n = 8) and without (n = 8) mammary tumors. The data recorded in healthy dogs revealed that serum and tissue glycoproteins are prevalently characterized by a α2,6 sialylation, but ST-α2,3 seems to be the most active enzyme in both samples. Sia-α2,3 and ST-α2,3 activity decreases in serum and tissues of dogs with tumors, especially in a dog with metastasis, suggesting that the equilibrium between ST-α2,6 and ST-α2,3 activity shifts toward the former, as reported in humans.
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Affiliation(s)
- S Paltrinieri
- Department of Veterinary Pathology, Hygiene and Public Health, University of Milan, Italy.
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31
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Du E, Tikoo SK. Efficient replication and generation of recombinant bovine adenovirus-3 in nonbovine cotton rat lung cells expressing I-SceI endonuclease. J Gene Med 2011; 12:840-7. [PMID: 20963806 DOI: 10.1002/jgm.1505] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The rigorous evaluation of recombinant bovine adenovirus (BAdV)-3 as a gene delivery vector requires quick and efficient method of isolating recombinants. This requires both a suitable cell line and an efficient method of rescuing recombinant BAdV-3. To facilitate rapid isolation of recombinant BAdV-3, we have developed an efficient system for generating recombinants using newly identified nonbovine cell line permissive for replication of BAdV-3. METHODS Nonbovine cotton rat lung (CRL) cells in comparison to Madin-Darby bovine kidney cells and VIDO R2 cells were analyzed for the production of progeny virus and DNA transfection efficiency. In addition, lentiviral expression system was used to generate stable nonbovine CRL cell line expressing endonuclease I-SceI as examined by western blotting. Transfection of this cell line with circular or linear plasmid containing full-length BAdV-3 genome was used to generate recombinant BAdV-3. RESULTS We demonstrate that nonbovine CRL cells are permissive for replication of BAdV-3 and can be efficiently transfected with plasmid DNA. Second, we constructed CRL cell line (VIDO DT1) expressing an intron-encoding endonuclease I-SceI. Finally, we demonstrate that transfection of VIDO DT1 cells with a circular plasmid containing recombinant BAdV-3 genome flanked by I-SceI recognition sites can efficiently rescue recombinant virus. CONCLUSIONS The use of circular molecular clones together with I-SceI endonuclease expressing, BAdV-3 permissive CRL cell line not only increased the viral genome transfection efficiency, but also reduced the viral rescue time and amount of DNA required for rescuing recombinant BAdV-3s.
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Affiliation(s)
- Enqi Du
- Vaccine and Infectious Disease Organization, University of Saskatchewan Saskatoon, Saskatchewan, Canada
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32
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Sharma A, Bangari DS, Tandon M, Hogenesch H, Mittal SK. Evaluation of innate immunity and vector toxicity following inoculation of bovine, porcine or human adenoviral vectors in a mouse model. Virus Res 2010; 153:134-42. [PMID: 20659505 DOI: 10.1016/j.virusres.2010.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 07/15/2010] [Accepted: 07/17/2010] [Indexed: 01/16/2023]
Abstract
Nonhuman adenovirus (Ad) vectors derived from bovine Ad serotype 3 (BAd3) or porcine Ad serotype 3 (PAd3) can circumvent pre-existing immunity against human Ad (HAd). We have previously reported differential transduction of human and nonhuman cells by these Ad vectors, and their distinct receptor usage and biodistribution. To compare the induction of innate immunity, vector toxicity and vector uptake by Kupffer cells (KCs) following intravenous administration of PAd3, BAd3, or HAd5 vectors in mice, we determined mRNA expression levels of proinflammatory chemokines and cytokines, and Toll-like receptors (TLRs) in the liver and spleen. Tissue toxicity of these vectors was assessed by comparing serum levels of liver-specific enzymes, histopathology and Kupffer cell (KC) depletion. Compared to the HAd5 vector, PAd3 and BAd3 vectors were more potent stimulators of innate immune responses as indicated by enhanced mRNA expression of TLRs and proinflammatory chemokines and cytokine genes. Histopathological changes in the liver were most pronounced in HAd5-inoculated mice while BAd3- or PAd3-inoculated mice revealed mild histologic changes that were confined to early time points. Inoculation with HAd5 or PAd3 vectors resulted in a significant (P<0.05) decline of the number of KCs in the liver. Together, these results extend our previous observations regarding distinct in vivo biology of nonhuman and human Ad vectors.
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Affiliation(s)
- Anurag Sharma
- Department of Comparative Pathobiology, School of Veterinary Medicine, and Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907, USA
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Liang Y, Cheng JJ, Yang B, Huang J. The role of F1 ATP synthase beta subunit in WSSV infection in the shrimp, Litopenaeus vannamei. Virol J 2010; 7:144. [PMID: 20591132 PMCID: PMC2906456 DOI: 10.1186/1743-422x-7-144] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Accepted: 06/30/2010] [Indexed: 11/23/2022] Open
Abstract
Background Knowledge of the virus-host cell interaction could inform us of the molecular pathways exploited by the virus. Studies on viral attachment proteins (VAPs) and candidate receptor proteins involved in WSSV infection, allow a better understanding of how these proteins interact in the viral life cycle. In this study, our aim was to find some host cellular membrane proteins that could bind with white spot syndrome virus (WSSV). Results Two proteins were evident by using a virus overlay protein binding assay (VOPBA) with WSSV. A protein with molecular weight 53 kDa, named BP53, was analyzed in this study, which was homologous with the F1-ATP synthase beta subunit by mass spectrometry analysis. Rapid amplification of cDNA ends (RACE) PCR was performed to identify the full-length cDNA of the bp53 gene. The resulting full-length gene consisted of 1836 bp, encoding 525 amino acids with a calculated molecular mass of 55.98 kDa. The deduced amino acid sequence contained three conserved domains of the F1-ATP synthase beta subunit. BP53 was therefore designated the F1-ATP synthase beta subunit of L. vannamei. The binding of WSSV to BP53 were also confirmed by competitive ELISA binding assay and co-immunoprecipitation on magnetic beads. To investigate the function of BP53 in WSSV infection, it was mixed with WSSV before the mixture was injected intramuscularly into shrimp. The resulting mortality curves showed that recombinant (r) BP53 could attenuate WSSV infection. Conclusions The results revealed that BP53 is involved in WSSV infection. Here is the first time showed the role of shrimp F1-ATP synthase beta subunit in WSSV infection.
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Affiliation(s)
- Yan Liang
- Key Laboratory of Sustainable Utilization of Marine Fisheries Resources, the Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
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Evaluation of cross-reactive cell-mediated immune responses among human, bovine and porcine adenoviruses. Gene Ther 2010; 17:634-42. [PMID: 20164856 PMCID: PMC2869393 DOI: 10.1038/gt.2010.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The absence of preexisting immunity against porcine adenovirus (Ad) serotype 3 (PAd3) and bovine Ad serotype 3 (BAd3) in humans makes them attractive alternatives to human Ad serotype 5 (HAd5) vectors. To determine whether there is significant cross-reactivity among HAd5, BAd3, and PAd3 at the level of cell-mediated immune responses, BALB/c mice were inoculated intraperitoneally with wild type (WT) or replication-defective (RD) HAd5, BAd3, or PAd3. Thirty-five days after the first inoculation, cross-reactive CD8+ cytotoxic T cells, as well as CD4+ Th1- and Th2-helper T cells, in the spleen were analyzed by ELISPOT, flow cytometry and cytotoxic T lymphocyte (CTL) assays. Virus neutralization assays were used to evaluate humoral cross-reactivity. CD8+ or CD4+ T cells primed with WT or RD HAd5, PAd3, or BAd3 demonstrated significant (P <0.005) reactivity with homologous Ad antigens, whereas, only minimal cross-reactivity was observed upon stimulation with heterologous Ad antigens. Ad-neutralizing antibodies were found to be homologous Ad-specific. Overall, these results suggest that there is no significant immunological cross-reactivity among HAd5, BAd3, and PAd3, thereby supporting the rationale for the use of BAd3 and PAd3 as alternative HAd vectors to circumvent anti-HAd immunity in humans.
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