1
|
Wu B, Xu Q, Li Z, Wang Q, He D, Jiang X, Cui Y, Feng Q, Tang Y, Diao Y. Evidence of vertical transmission of fowl adenovirus 8b in ducks. Vet Microbiol 2023; 286:109888. [PMID: 37839297 DOI: 10.1016/j.vetmic.2023.109888] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/21/2023] [Accepted: 10/03/2023] [Indexed: 10/17/2023]
Abstract
Fowl adenovirus mainly causes hydropericardium hepatitis syndrome (HHS), inclusion body hepatitis (IBH) and gizzard erosion (GE), etc. In 2015, the first outbreak of HHS was reported in broiler chickens in central China, followed by an outbreak in waterfowl. The first outbreak of HHS in broiler flocks in central China in 2015, followed by outbreaks in waterfowl, has severely restricted the healthy development of the poultry industry. During the investigation, fowl adenovirus was detected in ducklings from a total of seven hatcheries in Shandong, Inner Mongolia and Jiangsu provinces. In addition, the DNA of fowl adenovirus was detected in breeding ducks and their progeny. To test the hypothesis that FAdV can be transmitted vertically, sixty 250-day-old Cherry Valley breeder ducks were divided equally into three groups for experimental infection. FAdV-8b SDLY isolate (duck/Shandong/SDLY/2021, SDLY) preserved in our laboratory was injected intramuscularly into group A and inoculated orally into group B. FAdV-8b DNA was detected in the yolk membranes, embryos and allantoic fluid of duck embryos in the FAdV-infected group after inoculation. In addition, the FAdV-8b hexon gene isolated from yolk membranes, embryos, allantoic fluid and duck eggs was close to 100% nucleotide homology to the FAdV-8b hexon gene isolated from laying duck ovaries, indicating that fowl adenovirus can be transmitted vertically in ducks. These findings provide evidence for the possible vertical transmission of fowl adenovirus from breeder ducks to ducklings.
Collapse
Affiliation(s)
- Bingrong Wu
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Qimin Xu
- Shandong Taishan Shengliyuan Group Co., Ltd, Tai'an, China
| | - Zhenchuan Li
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Qianqian Wang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Dalin He
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Xiaoning Jiang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Yitong Cui
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Qiang Feng
- Taian City Central Hospital, #29 Long Tan Road, Tai'an, Shandong 271000, China.
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China.
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China.
| |
Collapse
|
2
|
Mazboudi R, Mulhall Maasz H, Resch MD, Wen K, Gottlieb P, Alimova A, Khayat R, Collins ND, Kuschner RA, Galarza JM. A recombinant virus-like particle vaccine against adenovirus-7 induces a potent humoral response. NPJ Vaccines 2023; 8:155. [PMID: 37821505 PMCID: PMC10567840 DOI: 10.1038/s41541-023-00754-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023] Open
Abstract
Adenoviruses (AdVs) cause infections in humans that range from mild to severe, and can cause outbreaks particularly in close contact settings. Several human AdV types have been identified, which can cause a wide array of clinical manifestations. AdV types 4 and 7 (AdV-4 and AdV-7), which are among the most commonly circulating types in the United States, are known to cause acute respiratory disease that can result in hospitalization and rarely, death. Currently, the only vaccines approved for use in humans are live virus vaccines against AdV-4 and AdV-7, though these vaccines are only authorized for use in U.S. military personnel. While they are efficacious, use of these live virus vaccines carries considerable risks of vaccine-associated viral shedding and recombination. Here, we present an alternative vaccination strategy against AdV-7 using the virus-like particle platform (AdVLP-7). We describe the production of stable recombinant AdVLP-7, and demonstrate that AdVLP-7 is structurally analogous to wild-type AdV-7 virions (WT AdV-7). Preclinical immunogenicity studies in mice show that AdVLP-7 elicits a potent humoral immune response, comparable to that observed in mice immunized with WT AdV-7. Specifically, AdVLP-7 induces high titers of antibodies against AdV-7-specific antigens that can effectively neutralize AdV-7.
Collapse
Affiliation(s)
- Ryan Mazboudi
- TechnoVax, Inc., 6 Westchester Plaza, Elmsford, NY, 10523, USA
| | | | - Matthew D Resch
- TechnoVax, Inc., 6 Westchester Plaza, Elmsford, NY, 10523, USA
| | - Ke Wen
- TechnoVax, Inc., 6 Westchester Plaza, Elmsford, NY, 10523, USA
| | - Paul Gottlieb
- CUNY School of Medicine, The City College of New York, New York, NY, 10031, USA
| | - Aleksandra Alimova
- CUNY School of Medicine, The City College of New York, New York, NY, 10031, USA
| | - Reza Khayat
- Department of Chemistry and Biochemistry, The City College of New York, New York, NY, 10031, USA
| | - Natalie D Collins
- Viral Diseases Branch, Walter Reed Army Institute for Research, Silver Spring, MD, 20910, USA
| | - Robert A Kuschner
- Viral Diseases Branch, Walter Reed Army Institute for Research, Silver Spring, MD, 20910, USA
| | - Jose M Galarza
- TechnoVax, Inc., 6 Westchester Plaza, Elmsford, NY, 10523, USA.
| |
Collapse
|
3
|
Kuang L, Wang C, Chen H, Li Y, Liang Z, Xu T, Guo M, Zhu B. Seroprevalence of neutralizing antibodies to human mastadenovirus serotypes 3 and 7 in healthy children from guangdong province. Heliyon 2023; 9:e16986. [PMID: 37346335 PMCID: PMC10279900 DOI: 10.1016/j.heliyon.2023.e16986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 04/28/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
Severe adenovirus pneumonia is becoming more common in children infected with human mastadenovirus (HAdV)-3 and HAdV-7 than in those infected with other types of adenoviruses. Recently, there has been a trend toward an increasing prevalence of pneumonia caused by HAdV-7, an important viral pathogen in Pediatric Intensive Care Unit infections. Children infected with HAdV-7 have more serious symptoms of acute respiratory infections and other complications than those infected with HAdV-3. No specific anti-adenovirus drugs or vaccines are available for treatment or prevention. Therefore, we investigated the seroprevalence and titer levels of neutralizing antibodies (NAbs) against HAdV-3 and HAdV-7 in healthy children in Guangdong Province. We found that the seropositivity rates and antibody titers for HAdV-3 NAb were higher than those for HAdV-7 NAb. In children between 6 and 12 months of age, the seropositivity rates and titers were significantly low against HAdV-3 and HAdV-7. The HAdV-7-positive rate was significantly higher in the HAdV-3-positive samples than in the HAdV-3-negative samples. The HAdV-7 NAbs carried by the 0-6-month age group were dominated by low titers. These results reveal a low level of herd immunity against HAdV-3 and HAdV-7 in children, clarifying the importance of monitoring these two highly virulent adenoviruses, developing prophylactic vaccines, and predicting potential outbreaks.
Collapse
Affiliation(s)
- Lu Kuang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Changbing Wang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Haiyang Chen
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Yinghua Li
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Zhuofu Liang
- Clinical Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Tiantian Xu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Min Guo
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Bing Zhu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| |
Collapse
|
4
|
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: 7] [Impact Index Per Article: 3.5] [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.
Collapse
|
5
|
Fresco-Cala B, López-Lorente ÁI, Batista AD, Dinc M, Bansmann J, Behm RJ, Cárdenas S, Mizaikoff B. Icosahedral gold nanoparticles decorated with hexon protein: a surrogate for adenovirus serotype 5. Anal Bioanal Chem 2022; 415:2081-2090. [PMID: 36274111 PMCID: PMC9589707 DOI: 10.1007/s00216-022-04368-x] [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: 06/20/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 11/30/2022]
Abstract
Abstract The development of synthetic particles that emulate real viruses in size, shape, and chemical composition is vital to the development of imprinted polymer-based sorbent materials (molecularly imprinted polymers, MIPs). In this study, we address surrogates for adenovirus type 5 (Adv 5) via the synthesis and subsequent modification of icosahedral gold nanoparticles (iAuNPs) decorated with the most abundant protein of the Adv 5 (i.e., hexon protein) at the surface. CTAB-capped iAuNPs with dimensions in the range of 40–90 nm were synthesized, and then CTAB was replaced by a variety of polyethylene glycols (PEGs) in order to introduce suitable functionalities serving as anchoring points for the attachment of the hexon protein. The latter was achieved by non-covalent linking of the protein to the iAuNP surface using a PEG without reactive termination (i.e., methoxy PEG thiol, mPEG-SH, Mn=800). Alternatively, covalent anchoring points were generated by modifying the iAuNPs with a bifunctional PEG (i.e., thiol PEG amine, SH-PEG-NH2) followed by the addition of glutaraldehyde. X-ray photoelectron spectroscopy (XPS) confirmed the formation of the anchoring points at the iAuNP surface. Next, the amino groups present in the amino acids of the hexon protein interacted with the glutaraldehyde. iAuNPs before and after PEGylation were characterized using dynamic light scattering (DLS), XPS, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV–Vis spectroscopy, confirming the CTAB–PEG exchange. Finally, the distinct red shift obtained in the UV–Vis spectra of the pegylated iAuNPs in the presence of the hexon protein, the increase in the hydrodynamic diameter, the change in the zeta potential, and the selective binding of the hexon-modified iAuNPs towards a hexon-imprinted polymer (HIP) confirmed success in both the covalent and non-covalent attachment at the iAuNP surface. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s00216-022-04368-x.
Collapse
Affiliation(s)
- Beatriz Fresco-Cala
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081, Ulm, Germany. .,Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071, Córdoba, España.
| | - Ángela I López-Lorente
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071, Córdoba, España
| | - Alex D Batista
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081, Ulm, Germany.
| | | | - Joachim Bansmann
- Institute for Surface Chemistry and Catalysis, Ulm University, 89081, Ulm, Germany
| | - R Jürgen Behm
- Institute for Surface Chemistry and Catalysis, Ulm University, 89081, Ulm, Germany.,Institute of Theoretical Chemistry and Catalysis, Ulm University, 89069, Ulm, Germany
| | - Soledad Cárdenas
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071, Córdoba, España
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081, Ulm, Germany.,, Hahn-Schickard, 89077, Ulm, Germany
| |
Collapse
|
6
|
Hsp70 Inhibits the Replication of Fowl Adenovirus Serotype 4 by Suppressing Viral Hexon with the Assistance of DnaJC7. J Virol 2022; 96:e0080722. [PMID: 35852354 PMCID: PMC9364783 DOI: 10.1128/jvi.00807-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) infection results in serious hepatitis-hydropericardium syndrome (HHS) in broilers, which has caused great economic losses to the poultry industry; however, the specific host responses to FAdV-4 remain unknown. In this study, we identified 141 high-confidence protein-protein interactions (PPIs) between the main viral proteins (Hexon, Fiber 1, Fiber 2, and Penton bases) and host proteins via a liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay. We found that heat shock protein 70 (Hsp70), the protein with the highest score, and its cofactor DnaJ heat shock protein 40 family member C7 (DnaJC7) could negatively regulate the replication of FAdV-4. Furthermore, the nucleotide binding domain (NBD) of Hsp70 and the J domain of DnaJC7 were necessary for inhibiting FAdV-4 replication. We verified that DnaJC7 as a bridge could bind to Hsp70 and Hexon, assisting the indirect interaction between Hsp70 and Hexon. In addition, we found that FAdV-4 infection strongly induced the expression of autophagy proteins and cellular Hsp70 in a dose-dependent manner. Blockage of Hexon by Hsp70 overexpression was significantly reduced when the autophagy pathway was blocked by the specific inhibitor chloroquine (CQ). Our results showed that Hsp70 was co-opted by DnaJC7 to interact with viral Hexon and inhibited Hexon through the autophagy pathway, leading to a considerable restriction of FAdV-4 replication. IMPORTANCE FAdV-4, as the main cause of HHS, has quickly spread all over the world in recent years, seriously threatening the poultry industry. The aim of this study was to identify the important host proteins that have the potential to regulate the life cycle of FAdV-4. We found that Hsp70 and DnaJC7 played crucial roles in regulating the amount of viral Hexon and extracellular viral titers. Moreover, we demonstrated that Hsp70 interacted with viral Hexon with the assistance of DnaJC7, followed by suppressing Hexon protein through the autophagy pathway. These results provide new insight into the role of the molecular chaperone complex Hsp70-DnaJC7 in FAdV-4 infection and suggest a novel strategy for anti-FAdV-4 drug development by targeting the specific interactions among Hsp70, DnaJC7 and Hexon.
Collapse
|
7
|
New p35 (H3L) Epitope Involved in Vaccinia Virus Neutralization and Its Deimmunization. Viruses 2022; 14:v14061224. [PMID: 35746695 PMCID: PMC9227246 DOI: 10.3390/v14061224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 01/07/2023] Open
Abstract
Vaccinia virus (VACV) is a promising oncolytic agent because it exhibits many characteristic features of an oncolytic virus. However, its effectiveness is limited by the strong antiviral immune response induced by this virus. One possible approach to overcome this limitation is to develop deimmunized recombinant VACV. It is known that VACV p35 is a major protein for B- and T-cell immune response. Despite the relevance of p35, its epitope structure remains insufficiently studied. To determine neutralizing epitopes, a panel of recombinant p35 variants was designed, expressed, and used for mice immunization. Plaque-reduction neutralization tests demonstrated that VACV was only neutralized by sera from mice that were immunized with variants containing both N- and C- terminal regions of p35. This result was confirmed by the depletion of anti-p35 mice sera with recombinant p35 variants. At least nine amino acid residues affecting the immunogenic profile of p35 were identified. Substitutions of seven residues led to disruption of B-cell epitopes, whereas substitutions of two residues resulted in the recognition of the mutant p35 solely by non-neutralizing antibodies.
Collapse
|
8
|
Powers TW, Mullins EK, Zhang K, Binder JJ, Friese O, Runnels HA, Thompson LC. Identification of Recombinant Chimpanzee Adenovirus C68 Degradation Products Detected by AEX-HPLC. Front Bioeng Biotechnol 2022; 10:753481. [PMID: 35449595 PMCID: PMC9017566 DOI: 10.3389/fbioe.2022.753481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/09/2022] [Indexed: 12/01/2022] Open
Abstract
Physicochemical tests represent important tools for the analytical control strategy of biotherapeutics. For adenoviral modalities, anion-exchange high performance liquid chromatography (AEX-HPLC) represents an important methodology, as it is able to simultaneously provide information on viral particle concentration, product purity and surface charge in a high-throughput manner. During product development of an adenoviral-based therapeutic, an accelerated stability study was performed and showed changes in each of the AEX-HPLC reportable attributes. These changes also correlated with a decrease in product infectivity prompting a detailed characterization of the impurity and mechanism of the surface charge change. Characterization experiments identified the impurity to be free hexon trimer, suggesting that capsid degradation could be contributing to both the impurity and reduced particle concentration. Additional mass spectrometry characterization identified deamidation of specific hexon residues to be associated with the external surface charge modification observed upon thermal stress conditions. To demonstrate a causal relationship between deamidation and surface charge changes observed by AEX-HPLC, site-directed mutagenesis experiments were performed. Through this effort, it was concluded that deamidation of asparagine 414 was responsible for the surface charge alteration observed in the AEX-HPLC profile but was not associated with the reduction in infectivity. Overall, this manuscript details critical characterization efforts conducted to enable understanding of a pivotal physicochemical test for adenoviral based therapeutics.
Collapse
Affiliation(s)
- Thomas W. Powers
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
| | - Elise K. Mullins
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
| | - Kun Zhang
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
| | - Joseph J. Binder
- Cancer Vaccines and Immunotherapeutics, Pfizer Inc., San Diego, CA, United States
| | - Olga Friese
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
| | - Herbert A. Runnels
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
| | - Lawrence C. Thompson
- Analytical Research and Development, Biotherapeutic Pharmaceutical Sciences, Pfizer Inc., Chesterfield, MO, United States
- *Correspondence: Lawrence C. Thompson,
| |
Collapse
|
9
|
A multi-epitopes tandem antigen for five types of human adenoviruses and its application in development of multivalent IgM immunochromatographic strip test. Diagn Microbiol Infect Dis 2022; 103:115675. [DOI: 10.1016/j.diagmicrobio.2022.115675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 11/23/2022]
|
10
|
Adel A, Mohamed AAE, Samir M, Hagag NM, Erfan A, Said M, Arafa AES, Hassan WMM, El Zowalaty ME, Shahien MA. Epidemiological and molecular analysis of circulating fowl adenoviruses and emerging of serotypes 1, 3, and 8b in Egypt. Heliyon 2022; 7:e08366. [PMID: 34977398 PMCID: PMC8683735 DOI: 10.1016/j.heliyon.2021.e08366] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/31/2021] [Accepted: 11/08/2021] [Indexed: 12/15/2022] Open
Abstract
Fowl adenoviruses (FAdVs) are a large group of viruses of different serotypes. They are responsible for inclusion body hepatitis, adenoviral gizzard erosion, and hepatitis hydropericardium syndrome. The present study presents a comprehensive overview of FAdVs in Egypt, with a focus on the epidemiological features of virus serotypes across the country. We conducted molecular investigation of multiple FAdV species based on the genetic signature of hypervariable regions 1–4 in the loop1 (L1) region of the hexon gene. Epidemiologically, the Nile Delta governorates showed high positivity of FAdVs, which were more commonly found in broilers than in layers. Genetically, species D and serotype 8a/E dominated, and the findings also revealed the emergence of new FAdV serotypes 1, 3, and 8b. The comparative analysis of hypervariable regions in the L1 region of the hexon gene revealed variables specific to each virus serotype. In silico predictions of L1 region revealed variations in the molecular structure and predicted the antigenic epitopes which may affect the cross-antigenicity between the different FAdV species and serotypes.
Collapse
Affiliation(s)
- Amany Adel
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Ahmed Abd Elhalem Mohamed
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Mahmoud Samir
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Naglaa M Hagag
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Ahmed Erfan
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Mahmoud Said
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Abd El Satar Arafa
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Wafaa M M Hassan
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| | - Mohamed E El Zowalaty
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, SE 75 123, Sweden
| | - Momtaz A Shahien
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, Giza 12618, Egypt
| |
Collapse
|
11
|
Wang Y, Zhang Z, Shang L, Gao H, Du X, Li F, Gao Y, Qi G, Guo W, Qu Z, Dong T. Immunological Study of Reconstructed Common Ancestral Sequence of Adenovirus Hexon Protein. Front Microbiol 2021; 12:717047. [PMID: 34777273 PMCID: PMC8578728 DOI: 10.3389/fmicb.2021.717047] [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: 05/30/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022] Open
Abstract
Aim: To reconstruct the ancestral sequence of human adenoviral hexon protein by combining sequence variations and structural information. And to provide a candidate hexon protein for developing new adenoviral vector capable of escaping the pre-existing immunity in healthy populations. Methods: The sequences of 74 adenovirus-type strains were used to predict the ancestral sequence of human adenovirus hexon protein using FastML and MEGA software. The three-dimensional structure model was built using homology modeling methods. The immunological features of ancestral loop 1 and loop 2 regions of sequences were tested using protein segments expressed in a prokaryotic expression system and polypeptides synthesized with human serum samples. Results: The tower region of the hexon protein had the highest sequence variability, while the neck and base regions remained constant among different types. The modern strains successfully predicted the common ancestral sequence of the human adenovirus hexon. The positive sera against neutralizing epitopes on the common ancestor of adenoviral hexon were relatively rare among healthy adults. Conclusion: The existing strains inferred the common ancestor of human adenoviruses, with epitopes never observed in the current human strains. The predicted common ancestor hexon is a good prospect in the improvement of adenovirus vectors.
Collapse
Affiliation(s)
- Yingchen Wang
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Zhe Zhang
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Lei Shang
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Hong Gao
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Xiqiao Du
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China.,Harbin Center for Disease Control and Prevention, Harbin, China
| | - Falong Li
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Ya Gao
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| | - Guiyun Qi
- The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Weiyuan Guo
- The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Zhangyi Qu
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China.,Department of Natural Focus Disease Control, Institute of Environment-Associated Disease, Sino-Russia Joint Medical Research Center, Harbin Medical University, Harbin, China
| | - Tuo Dong
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
| |
Collapse
|
12
|
Sohaimi NM, Hair-Bejo M. A recent perspective on fiber and hexon genes proteins analyses of fowl adenovirus toward virus infectivity-A review. Open Vet J 2021; 11:569-580. [PMID: 35070851 PMCID: PMC8770197 DOI: 10.5455/ovj.2021.v11.i4.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 09/21/2021] [Indexed: 11/06/2022] Open
Abstract
Fowl adenovirus (FAdV) is a double-stranded DNA virus with a non-enveloped structure comprising three major proteins known as hexon, penton, and fiber. Molecular analysis which emphasizes on hexon and fiber proteins is currently the major focus of curiosity for FAdV antigenicity and pathogenicity. Recently, disease outbreaks associated with FAdV infections such as inclusion body hepatitis, hepatitis hydropericardium syndrome, and gizzard erosion, were commonly reported and continue to increase worldwide. Studies on the virulence gene of the virus were intensively conducted to provide a better understanding on the role of these major capsid proteins in the development of a safe and effective vaccine against the disease in the poultry industry. This paper highlights the variations of the fiber and hexon genes, their importance in genotypes and serotypes differentiation, and infectivity between FAdV strains. It appears that the L1 loop of hexon and the knob of fiber genes are the infectivity markers for FAdV infection. The fiber-2 protein plays a major role in FAdV pathogenicity than the hexon protein, while the fiber-1 protein is important for viral replication and assembly, regardless of virulence capability instead of infectivity. The hexon protein plays a major role in virus infectivity and tissue tropism. These findings could further enhance the knowledge of FAdV strains’ classification and evolution, diagnosis, and strategies to prevent and control FAdV infection and outbreaks in chicken farms.
Collapse
Affiliation(s)
- Norfitriah Mohamed Sohaimi
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Hair-Bejo
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| |
Collapse
|
13
|
Yan Y, Jing S, Feng L, Zhang J, Zeng Z, Li M, Zhao S, Ou J, Lan W, Guan W, Wu X, Wu J, Seto D, Zhang Q. Construction and Characterization of a Novel Recombinant Attenuated and Replication-Deficient Candidate Human Adenovirus Type 3 Vaccine: "Adenovirus Vaccine Within an Adenovirus Vector". Virol Sin 2021; 36:354-364. [PMID: 32458297 PMCID: PMC7248191 DOI: 10.1007/s12250-020-00234-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/13/2020] [Indexed: 01/09/2023] Open
Abstract
Human adenoviruses (HAdVs) are highly contagious and result in large number of acute respiratory disease (ARD) cases with severe morbidity and mortality. Human adenovirus type 3 (HAdV-3) is the most common type that causes ARD outbreaks in Asia, Europe, and the Americas. However, there is currently no vaccine approved for its general use. The hexon protein contains the main neutralizing epitopes, provoking strong and lasting immunogenicity. In this study, a novel recombinant and attenuated adenovirus vaccine candidate against HAdV-3 was constructed based on a commercially-available replication-defective HAdV-5 gene therapy and vaccine vector. The entire HAdV-3 hexon gene was integrated into the E1 region of the vector by homologous recombination using a bacterial system. The resultant recombinants expressing the HAdV-3 hexon protein were rescued in AD293 cells, identified and characterized by RT-PCR, Western blots, indirect immunofluorescence, and electron microscopy. This potential vaccine candidate had a similar replicative efficacy as the wild-type HAdV-3 strain. However, and importantly, the vaccine strain had been rendered replication-defective and was incapable of replication in A549 cells after more than twenty-generation passages in AD293 cells. This represents a significant safety feature. The mice immunized both intranasally and intramuscularly by this vaccine candidate raised significant neutralizing antibodies against HAdV-3. Therefore, this recombinant, attenuated, and safe adenovirus vaccine is a promising HAdV-3 vaccine candidate. The strategy of using a clinically approved and replication-defective HAdV-5 vector provides a novel approach to develop universal adenovirus vaccine candidates against all the other types of adenoviruses causing ARDs and perhaps other adenovirus-associated diseases.
Collapse
Affiliation(s)
- Yuqian Yan
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Shuping Jing
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
- Microbiological Laboratory, Zhuhai Center for Disease Control and Prevention, Zhuhai, 519000, China
| | - Liqiang Feng
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jing Zhang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou, 510632, China
| | - Zhiwei Zeng
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Min Li
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Shan Zhao
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Junxian Ou
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Wendong Lan
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Wenyi Guan
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Xiaowei Wu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Jianguo Wu
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou, 510632, China
| | - Donald Seto
- Bioinformatics and Computational Biology Program, School of Systems Biology, George Mason University, Manassas, VA, 20110, USA
| | - Qiwei Zhang
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou, 510632, China.
| |
Collapse
|
14
|
Song K, Viskovska M. Design and Engineering of Deimmunized Vaccinia Viral Vectors. Biomedicines 2020; 8:E491. [PMID: 33187060 PMCID: PMC7697509 DOI: 10.3390/biomedicines8110491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 12/31/2022] Open
Abstract
Vaccinia viral (VV) vectors are increasingly used in oncolytic virus therapy and vaccine development for cancer and infectious diseases. However, their effectiveness is hindered by the strong anti-viral immune response induced by the viral vector. In this review, we discuss the strategies to deimmunize vaccinia viral vector. One approach is to mask the virus from the neutralization antibody responses by mapping and eliminating of B-cell epitopes on the viral membrane proteins. The recombinant VVs contain one or more viral glycoproteins with mutations in the neutralizing antibody epitopes, resulting in viral escape from neutralization. In addition, a regulator of complement activation (e.g., CD55) can be expressed on the surface of the virus particle, leading to increased resistance to complement-mediated neutralization.
Collapse
Affiliation(s)
| | - Mariya Viskovska
- Icell Kealex Therapeutics, 2450 Holcombe Blvd Suite J, JALBS@TMC, Houston, TX 77021, USA;
| |
Collapse
|
15
|
Panda S, Banik U, Adhikary AK. Bioinformatics analysis reveals four major hexon variants of human adenovirus type-3 (HAdV-3) as the potential strains for development of vaccine and siRNA-based therapeutics against HAdV-3 respiratory infections. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2020; 85:104439. [PMID: 32585339 PMCID: PMC7308778 DOI: 10.1016/j.meegid.2020.104439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/24/2020] [Accepted: 06/20/2020] [Indexed: 11/25/2022]
Abstract
Human adenovirus type 3 (HAdV-3) encompasses 15-87% of all adenoviral respiratory infections. The significant morbidity and mortality, especially among the neonates and immunosuppressed patients, demand the need for a vaccine or a targeted antiviral against this type. However, due to the existence of multiple hexon variants (3Hv-1 to 3Hv-25), the selection of vaccine strains of HAdV-3 is challenging. This study was designed to evaluate HAdV-3 hexon variants for the selection of potential vaccine candidates and the use of hexon gene as a target for designing siRNA that can be used as a therapy. Based on the data of worldwide distribution, duration of circulation, co-circulation and their percentage among all the variants, 3Hv-1 to 3Hv-4 were categorized as the major hexon variants. Phylogenetic analysis and the percentage of homology in the hypervariable regions followed by multi-sequence alignment, zPicture analysis and restriction enzyme analysis were carried out. In the phylogram, the variants were arranged in different clusters. The HVR encoding regions of hexon of 3Hv-1 to 3Hv-4 showed 16 point mutations resulting in 12 amino acids substitutions. The homology in HVRs was 81.81-100%. Therefore, the major hexon variants are substantially different from each other which justifies their inclusion as the potential vaccine candidates. Interestingly, despite the significant differences in the DNA sequence, there were many conserved areas in the HVRs, and we have designed functional siRNAs form those locations. We have also designed immunogenic vaccine peptide epitopes from the hexon protein using bioinformatics prediction tool. We hope that our developed siRNAs and immunogenic vaccine peptide epitopes could be used in the future development of siRNA-based therapy and designing a vaccine against HAdV-3.
Collapse
Affiliation(s)
- Somnath Panda
- Unit of Microbiology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, 08100 Bedong, Kedah, Malaysia.
| | - Urmila Banik
- Unit of Pathology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, 08100 Bedong, Kedah, Malaysia
| | - Arun K. Adhikary
- Unit of Microbiology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, 08100 Bedong, Kedah, Malaysia
| |
Collapse
|
16
|
Shen Y, Liu J, Zhang Y, Ma X, Yue H, Tang C. Prevalence and characteristics of a novel bovine adenovirus type 3 with a natural deletion fiber gene. INFECTION GENETICS AND EVOLUTION 2020; 83:104348. [PMID: 32380313 DOI: 10.1016/j.meegid.2020.104348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/29/2022]
Abstract
Bovine adenovirus type 3 (BAdV-3) is an important pathogen causing bovine respiratory disease complex (BRDC). From Jun 2016 to Jun 2018, 108 nose swab samples were collected from cattle with BRDC from 11 farms in five cities, and 78.7% (85/108) samples were detected as BAdV-3 positive by Real-time PCR. Interestingly, the sequences of 7/10 fiber (852 bp) and hexon (785 bp) fragments cloned from 10 positive samples from eight farms were clustered into a single branch of the evolutionary tree. A BAdV-3 strain (BO/YB24/17/CH) was successfully isolated. The isolate caused pathological changes of lung, trachea and spleen in BALB/c mice. Notably, 79 amino acid deletions in the shaft domain and 74 unique amino acid mutations were found in the fiber gene of the isolate compared with the available complete sequences for fiber genes in the GenBank database. These characteristics indicated that the isolate may represent a novel fiber genotype of BAdV-3. A pair of specific primers covering the deletion region in the fiber gene was designed to screen the prevalence of BAdV-3 encoding the novel fiber gene. The results showed that 7 of the 10 strains possessed the novel fiber gene, and these novel fiber strains were detected from six farms in which calves were just imported from five provinces, indicating that this BAdV-3 with the natural deletion fiber gene has a wide geographical distribution in China. In conclusion, our results reveal that BAdV-3 is widespread in China and a pathogenic BAdV-3 strain with a novel fiber gene has been detected at high frequency, which is beneficial to understand the prevalence and genetic evolution of BAdV-3.
Collapse
Affiliation(s)
- Yan Shen
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Jie Liu
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China; Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Chengdu, China
| | - Yinghui Zhang
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Xiaoyu Ma
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Hua Yue
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China; Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Chengdu, China
| | - Cheng Tang
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China; Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Chengdu, China.
| |
Collapse
|
17
|
Lu J, Wang R, Huang Y, Yu Y, Zhou X, Huang P, Yang Z. A novel human monoclonal antibody potently neutralizes human adenovirus serotype 7 by primarily targeting the adenovirus hexon protein. Virology 2020; 543:20-26. [PMID: 32056843 DOI: 10.1016/j.virol.2019.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 11/28/2022]
Abstract
Human adenovirus serotype 7 (HAdV-7), belonging to species B, has caused severe lower respiratory tract diseases and even deaths recently. However, no adenovirus vaccine or therapeutic is available thus far. In this study, a HAdV-7-specific human monoclonal antibody (HMAb), 3-3E, isolated from single plasma cells obtained from the peripheral blood mononuclear cells of HAdV-7-infected patients showed potent HAdV-7 neutralization activity. The results showed HMAb 3-3E only binds to the hexon protein of intact HAdV-7 or the recombinant hexon protein and it does not bind to other intact virion particles. This could mean the antibody recognizes a conformational epitope of the hexon protein. Further, HMAb 3-3E potently neutralized HAdV-7 in vitro at low concentrations. In vivo studies showed HMAb 3-3E protected from HAdV-7 infection in a murine model. Therefore, HMAb 3-3E is promising as a safe and effective prophylactic and therapeutic treatment for HAdV-7 infection.
Collapse
Affiliation(s)
- Jiansheng Lu
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Rong Wang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Ying Huang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Yunzhou Yu
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Xiaowei Zhou
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Peitang Huang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Zhixin Yang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China.
| |
Collapse
|
18
|
Wang R, Lu J, Zhou Q, Chen L, Huang Y, Yu Y, Yang Z. A Murine Monoclonal Antibody With Potent Neutralization Ability Against Human Adenovirus 7. Front Cell Infect Microbiol 2019; 9:417. [PMID: 31867291 PMCID: PMC6904267 DOI: 10.3389/fcimb.2019.00417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 11/21/2019] [Indexed: 12/29/2022] Open
Abstract
B1-type human adenoviruses (HAdVs) HAdV-3, HAdV-7, and HAdV-55 have caused epidemics in North America, Asia, and Europe. However, to date, no adenovirus vaccines or antiviral drugs have been approved for general use. In the present work, a scFv-phage immune library was constructed and mouse monoclonal antibody (MMAb) 10G12 was obtained through selection. 10G12 is specific for HAdV-7 and binds the hexon loop1 and loop2 (LP12), resulting in strong neutralization activity against HAdV-7. Additionally, it is stable in serum and buffer at various pH values. The findings provide insight into adenovirus and antibody responses and may facilitate the design and development of adenovirus vaccines and antiviral drugs.
Collapse
Affiliation(s)
- Rong Wang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Jiansheng Lu
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Quan Zhou
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Lei Chen
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Ying Huang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Yunzhou Yu
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Zhixin Yang
- Laboratory of Protein Engineering, Beijing Institute of Biotechnology, Beijing, China
| |
Collapse
|
19
|
Shaw AR, Suzuki M. Immunology of Adenoviral Vectors in Cancer Therapy. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 15:418-429. [PMID: 31890734 PMCID: PMC6909129 DOI: 10.1016/j.omtm.2019.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Adenoviruses are a commonly utilized virus for gene therapy platforms worldwide. Since adenovirus components are characterized as highly immunogenic, their immunogenicity inhibits the widespread use of adenoviral vectors to treat genetic disorders. However, stimulation of the immune response can be exploited for cancer immunotherapy platforms, and thus adenoviral vectors are used for therapeutic gene transfer, vaccines, and oncolytic agents in the cancer gene therapy field. It is now accepted that the generation of anti-tumor immune responses induced by oncolytic adenovirus treatments is critical for their anti-tumor efficacy. As such, in cancer immunotherapy with adenoviral vectors, a balance must be struck between induction of anti-adenoviral and anti-tumor immune responses. The recent trend in adenoviral-based cancer gene therapy is the development of adenoviral vectors to enhance immune responses and redirect them toward tumors. This review focuses on anti-adenoviral immunity and how adenovirotherapies skew the immune response toward an anti-tumor response.
Collapse
Affiliation(s)
- Amanda Rosewell Shaw
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA.,Baylor College of Medicine, Center for Cell Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, USA
| | - Masataka Suzuki
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA.,Baylor College of Medicine, Center for Cell Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, USA
| |
Collapse
|
20
|
Tian X, Wu H, Zhou R. Molecular evolution of human adenovirus type 16 through multiple recombination events. Virus Genes 2019; 55:769-778. [PMID: 31385187 DOI: 10.1007/s11262-019-01698-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 07/30/2019] [Indexed: 12/14/2022]
Abstract
Human mastadenoviruses (HAdVs) are non-enveloped, double-stranded DNA viruses that are comprised of more than 85 types classified within seven species (A-G) based on genomics. All HAdV prototypes and many newly defined type genomes have been completely sequenced and are available. Computational analyses of the prototypes and newly emergent HAdV strains provide insights into the evolutionary history and molecular adaptation of HAdV. Most types of HAdV-B are important pathogens causing severe respiratory infections or urinary tract infections and are well characterized. However, HAdV-16 of the B1 subspecies has rarely been reported and its genome is poorly characterized. In this study, bioinformatics analysis, based on genome sequences obtained in GenBank, suggested that HAdV-16, a prototype HAdV-B species, evolved from multiple intertypic recombination events. HAdV-16 genome contains the hexon loop 1 to loop 2 region from HAdV-E4, the partial hexon conserved region 4 (C4) from the subspecies HAdV-B2, genome region 30,897-33,384 containing the fiber gene from SAdV-35, and other genomic parts from the subspecies HAdV-B1. Moreover, analysis of sequence similarity with HAdV-E4 LI, LII, and SAdV-36 strains demonstrated the recombination events happened rather early. Further, amino acid sequence alignment indicated that the amino acid variations occurred in hypervariable regions (HVRs). Especially, the major difference in HVR7, which contains the critical neutralization epitope of HAdV-E4, between HAdV-16 and HAdV-E4 might explain the low level of cross-neutralization between these strains. Our findings promote better understanding on HAdV evolution, predicting newly emergent HAdV strains, and developing novel HAdV vectors.
Collapse
Affiliation(s)
- Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Hongkai Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
| |
Collapse
|
21
|
Niemann J, Woller N, Brooks J, Fleischmann-Mundt B, Martin NT, Kloos A, Knocke S, Ernst AM, Manns MP, Kubicka S, Wirth TC, Gerardy-Schahn R, Kühnel F. Molecular retargeting of antibodies converts immune defense against oncolytic viruses into cancer immunotherapy. Nat Commun 2019; 10:3236. [PMID: 31324774 PMCID: PMC6642145 DOI: 10.1038/s41467-019-11137-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 06/18/2019] [Indexed: 01/06/2023] Open
Abstract
Virus-neutralizing antibodies are a severe obstacle in oncolytic virotherapy. Here, we present a strategy to convert this unfavorable immune response into an anticancer immunotherapy via molecular retargeting. Application of a bifunctional adapter harboring a tumor-specific ligand and the adenovirus hexon domain DE1 for engaging antiadenoviral antibodies, attenuates tumor growth and prolongs survival in adenovirus-immunized mice. The therapeutic benefit achieved by tumor retargeting of antiviral antibodies is largely due to NK cell-mediated triggering of tumor-directed CD8 T-cells. We further demonstrate that antibody-retargeting (Ab-retargeting) is a feasible method to sensitize tumors to PD-1 immune checkpoint blockade. In therapeutic settings, Ab-retargeting greatly improves the outcome of intratumor application of an oncolytic adenovirus and facilitates long-term survival in treated animals when combined with PD-1 checkpoint inhibition. Tumor-directed retargeting of preexisting or virotherapy-induced antiviral antibodies therefore represents a promising strategy to fully exploit the immunotherapeutic potential of oncolytic virotherapy and checkpoint inhibition.
Collapse
Affiliation(s)
- Julia Niemann
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Norman Woller
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Jennifer Brooks
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Bettina Fleischmann-Mundt
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Nikolas T Martin
- Institute for Clinical Biochemistry, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, Ottawa, K1H 8L6, Canada
| | - Arnold Kloos
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
- Department of Experimental Hemato-Oncology, Hannover Medical School, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Sarah Knocke
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Amanda M Ernst
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Michael P Manns
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Stefan Kubicka
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
- Cancer Center Reutlingen, District Hospital, Reutlingen, Germany
| | - Thomas C Wirth
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Rita Gerardy-Schahn
- Institute for Clinical Biochemistry, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany
| | - Florian Kühnel
- Department of Gastroenterology, Hepatology and Endocrinology, Medical School Hannover, Carl Neuberg Str. 1, 30625, Hannover, Germany.
| |
Collapse
|
22
|
Shen Z, Xiang B, Li S, Ren X, Hong Y, Liao J, Yu D, Ren T, Liao M, Xu C. Genetic characterization of fowl adenovirus serotype 4 isolates in Southern China reveals potential cross-species transmission. INFECTION GENETICS AND EVOLUTION 2019; 75:103928. [PMID: 31226331 DOI: 10.1016/j.meegid.2019.103928] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/10/2019] [Accepted: 06/17/2019] [Indexed: 12/11/2022]
Abstract
Increasing numbers of hepatitis-hydropericardium syndrome (HHS) outbreaks associated with Fowl adenovirus 4 (FAdV-4) have been confirmed in several provinces of China since 2015, mainly affecting 3-5-week-old broiler chicks, resulting in significant losses to the poultry industry. However, little is currently known regarding the molecular epidemiology and host specificity of FAdV-4 associated with HHS in Southern China. In the present study, we isolated 37 FAdV-4 strains from 52 suspected cases of HHS (33 from broilers, one from a layer, two from ducks, and one from a mandarin duck) from Guangdong province during 2016 to 2017. All 37 FAdV-4 strains obtained showed 100% identity of hexon genes at the nucleotide level, and also showed 100% nucleotide sequence identities with strains obtained from other provinces such as Shandong, Zhejiang, and Anhui, which grouped into a FAdV-C cluster. To our knowledge, this represents the first report of an FAdV-4 strain (GZ1) from a mandarin duck with HHS. Experimental infection of the GZ1 strain via intramuscular injection led to a 100% mortality rate in 21-day-old specific pathogen-free chickens. These data indicate the possibility of the cross-species transmission of FAdV-4, highlighting the need for implementing strict biosecurity measures to avoid the mixing of different bird species.
Collapse
Affiliation(s)
- Zujie Shen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Bin Xiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Shibin Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Xingxing Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Yanfen Hong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Jiayu Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Deshui Yu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Tao Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China
| | - Chenggang Xu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, PR China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, PR China; Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, PR China.
| |
Collapse
|
23
|
Ye X, Xiao L, Zheng X, Wang J, Shu T, Feng Y, Liu X, Su W, Wang Q, Li C, Chen L, Feng L. Seroprevalence of Neutralizing Antibodies to Human Adenovirus Type 4 and 7 in Healthy Populations From Southern China. Front Microbiol 2018; 9:3040. [PMID: 30619131 PMCID: PMC6295555 DOI: 10.3389/fmicb.2018.03040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/26/2018] [Indexed: 12/22/2022] Open
Abstract
Human adenoviruses type 4 (HAdV4) and 7 (HAdV7) are two major respiratory pathogens and sporadically cause outbreaks of acute respiratory diseases. The neutralizing antibody (nAb) response to these two adenoviruses in civilian populations, which is important for dissecting previous circulations and predicting potential outbreaks, remains largely unknown. In this study, we generated replication-competent HAdV4 and HAdV7 reporter viruses expressing secreted-alkaline-phosphatase (SEAP), and established neutralization assays to investigate the seroprevalence of pre-existing nAb in healthy volunteers from Hunan Province, southern China. The seropositivity rates are 58.4 and 63.8% for anti-HAdV4 nAb and anti-HAdV7 nAb, respectively. High nAb titers (> 1000) were frequently detected in HAdV4-seropositive individuals, whereas most HAdV7-seropositive volunteers had moderate nAb titers (201-1000). The seropositivity rates of anti-HAdV4 nAb and anti-HAdV7 nAb increase with age, with individuals younger than 20 exhibiting the lowest seropositivity rates. Both seropositivity rates and nAb titers are comparable between different sex groups. Notably, HAdV4-seropositive individuals tend to be HAdV7-seropositive and vice versa. Because HAdV4 antisera showed no neutralizing activity to HAdV7 whereas HAdV7 antisera cannot neutralize HAdV4, a subgroup of individuals might be susceptible to infection by HAdV4 and HAdV7 and thus generate nAb to both of them. These results revealed the continuous circulation of HAdV4 and HAdV7 and the lack of protective immunity in more than 35% of people, which emphasized the surveillance of these two HAdVs and the development of prophylactic vaccines.
Collapse
Affiliation(s)
- Xianmiao Ye
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Lijun Xiao
- Center for Disease Control and Prevention of Chenzhou, Chenzhou, China
| | - Xuehua Zheng
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Jinlin Wang
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Tao Shu
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Ying Feng
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xinglong Liu
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Wan Su
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,School of Biomedical Sciences, Huaqiao University, Quanzhou, China
| | - Qian Wang
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Chufang Li
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ling Chen
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Liqiang Feng
- State Key Laboratories of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| |
Collapse
|
24
|
Tian X, Fan Y, Liu Z, Zhang L, Liao J, Zhou Z, Li X, Liu T, Liu W, Qiu H, Zhou R. Broadly neutralizing monoclonal antibodies against human adenovirus types 55, 14p, 7, and 11 generated with recombinant type 11 fiber knob. Emerg Microbes Infect 2018; 7:206. [PMID: 30531794 PMCID: PMC6286715 DOI: 10.1038/s41426-018-0197-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/07/2018] [Accepted: 10/31/2018] [Indexed: 12/02/2022]
Abstract
The re-emerging human adenovirus types HAdV7, HAdV14, and HAdV55 of species B have caused severe lower respiratory tract diseases and even deaths during recent outbreaks. However, no adenovirus vaccine or therapeutic has been approved for general use. These adenoviruses attach to host cells via the knob domain of the fiber, using human desmoglein 2 as the primary cellular receptor. In this study, a recombinant HAdV11 fiber knob trimer (HAdV11FK) expressed in E. coli was shown to induce broadly neutralizing antibodies against HAdV11, -7, -14p1, and -55 in mice. Using HAdV11FK as an antigen, three monoclonal antibodies, 6A7, 3F11, and 3D8, with high neutralizing activity were generated. More importantly, the results of in vitro neutralization assays demonstrated that 3F11 and 3D8 cross-neutralized HAdV11, -7, and -55, but not HAdV14p1. The amino acids 251KE252 within the F-G loop may be the crucial amino acids in the conformational epitope recognized by 3F11, which is common to HAdV11, -7, -14p, and -55, but is not present in HAdV14p1 and HAdV3. A two-amino-acid deletion in the HAdV14p1 structure breaks the short alpha helix (248SREKE252) that is present in the HAdV7, -11, -55, and -14p fiber knob structures. Our findings add to the knowledge of adenovirus fiber structure and antibody responses and are important for the design of adenovirus vaccines and antiviral drugs with broad activity.
Collapse
Affiliation(s)
- Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Ye Fan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Zhenwei Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Ling Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Department of Medical Genetics, Liuzhou Maternal and Child Health Hospital, Liuzhou, Guangxi, China
| | - Jiayi Liao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Zhichao Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Xiao Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Tiantian Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Wenkuan Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Hongling Qiu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
| |
Collapse
|
25
|
Deep analysis of Loop L1 HVRs1-4 region of the hexon gene of adenovirus field strains isolated in Poland. PLoS One 2018; 13:e0207668. [PMID: 30481218 PMCID: PMC6258537 DOI: 10.1371/journal.pone.0207668] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/05/2018] [Indexed: 01/20/2023] Open
Abstract
Background To date, studies on loop L1 HVRs1-4 region of the hexon gene in fowl adenovirus genome (FAdVs) lack comprehensive molecular data. In this study detailed prospectively obtained sequences from field adenovirus strains, NVRI, Poland have been analyzed. Methods Overall hundred and thirty seven adenovirus strains were collected, evaluated, and examined of hyper variable loop L1 region HVRs1-4 of the hexon gene for the presence of similarity, mutations, tertiary structure, and spinal conformation. Results Sequences were characterized, and divided for five species and seven types, FAdV-A-E/FAdV-1/2/4/5/7/8a/8b/11. The presence of predicted tertiary structure depending on type/species were determined. Analysis of specific selected sequences: GQMTN 1/A, 7/E, and 8b/E, GQMTT 2/11/D, GQLSN 4/C, GQMTH 5/B, and GQMSN 8a/E in examined HVRs1-4 Loop L1 region of hexon gene compared to tertiary structure indicated that this visibly conservative region represents the antigenic binging activity. Conclusion This is the first molecular study on tertiary structure on HVRs1-4 region in adenovirus genome conducted in Poland. Analysis indicated specific sequence in Loop L1 HVR1-4 region which is strictly responsible for antibodies binding. This information could assist during the process connected with specific preventive strategies based on their molecular genome investigation and new facilitate studies. This study will help to better understand the mechanisms of pathogenicity of adenovirus strains provide a guide for disease control in birds.
Collapse
|
26
|
Liu T, Fan Y, Li X, Gu S, Zhou Z, Xu D, Qiu S, Li C, Zhou R, Tian X. Identification of adenovirus neutralizing antigens using capsid chimeric viruses. Virus Res 2018; 256:100-106. [PMID: 30096411 DOI: 10.1016/j.virusres.2018.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 08/04/2018] [Accepted: 08/05/2018] [Indexed: 01/07/2023]
Abstract
Human adenoviruses (HAdV) 3 and 7 can cause acute respiratory disease epidemics and outbreaks. Identification of neutralizing epitopes is vital for surveillance and vaccine development. In this study, we generated the recombinant capsid-chimeric human adenoviruses rAd3E-Fk7, containing the Ad3E backbone and the HAdV-7 fiber knob, and rAd3E-H7Fk7, which contain an Ad3E backbone but HAdV-7 hexon and fiber knob. In vitro neutralization tests with these chimeric adenoviruses using both mouse and human antisera indicated that hexon and fiber knob are the major targets recognized by neutralizing antibodies against HAdV-3 or HAdV-7, and other capsid proteins including the penton base and fiber shaft may not contribute to neutralizing antibody responses. In conclusion, both hexon and fiber knob structures in HAdV-3 and HAdV-7 may be the proteins which induce neutralizing antibody responses and thus may be important for adenovirus vaccine and drug development.
Collapse
Affiliation(s)
- Tiantian Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China; School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510310, China
| | - Ye Fan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Xiao Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Shujun Gu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Zhichao Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Duo Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Shuyan Qiu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Chi Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
| | - Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
| |
Collapse
|
27
|
Li PH, Zheng PP, Zhang TF, Wen GY, Shao HB, Luo QP. Fowl adenovirus serotype 4: Epidemiology, pathogenesis, diagnostic detection, and vaccine strategies. Poult Sci 2018; 96:2630-2640. [PMID: 28498980 DOI: 10.3382/ps/pex087] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/20/2017] [Indexed: 12/13/2022] Open
Abstract
Fowl adenovirus (FAdV) serotype-4 is highly pathogenic for chickens, especially for broilers aged 3 to 5 wk, and it has emerged as one of the foremost causes of economic losses to the poultry industry in the last 30 years. The liver is a major target organ of FAdV-4 infections, and virus-infected chickens usually show symptoms of hydropericardium syndrome. The virus is very contagious, and it is spread both vertically and horizontally. It can be isolated from infected liver homogenates and detected by several laboratory diagnostic methods (including an agar gel immunodiffusion test, indirect immunofluorescence assays, counterimmunoelectrophoresis, enzyme-linked immunosorbent assays, restriction endonuclease analyses, polymerase chain reaction (PCR), real-time PCR, and high-resolution melting-curve analyses). Although inactivated vaccines have been deployed widely to control the disease, attenuated live vaccines and subunit vaccines also have been developed, and they are more attractive vaccine candidates. This article provides a comprehensive review of FAdV-4, including its epidemiology, pathogenesis, diagnostic detection, and vaccine strategies.
Collapse
Affiliation(s)
- P H Li
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Science, Wuhan, China
| | - P P Zheng
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - T F Zhang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - G Y Wen
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - H B Shao
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - Q P Luo
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| |
Collapse
|
28
|
Nguyen TV, Crosby CM, Heller GJ, Mendel ZI, Barry ME, Barry MA. Oncolytic adenovirus Ad657 for systemic virotherapy against prostate cancer. Oncolytic Virother 2018; 7:43-51. [PMID: 29765912 PMCID: PMC5939883 DOI: 10.2147/ov.s155946] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background Human species C adenovirus serotype 5 (Ad5) is the archetype oncolytic adenovirus and has been used in the vast majority of preclinical and clinical tests. While Ad5 can be robust, species C Ad6 has lower seroprevalence, side effects, and appears to be more potent as a systemic therapy against a number of tumors than Ad5. Historically, there have only been four species C human adenoviruses: serotypes 1, 2, 5, and 6. More recently a new species C adenovirus, Ad57, was identified. Ad57 is most similar to Ad6 with virtually all variation in their capsid proteins occurring in the hypervariable regions (HVRs) of their hexon proteins. Most adenovirus neutralizing antibodies target the HVRs on adenoviruses. This led us to replace the hexon HVRs in Ad6 with those from Ad57 to create a new virus called Ad657 and explore this novel species C platform’s utility as an oncolytic virus. Methods The HVR region from Ad57 was synthesized and used to replace the Ad6 HVR region by homologous recombination in bacteria generating a new viral platform that we call Ad657. Replication-competent Ad5, Ad6, and Ad657 were compared in vitro and in vivo for liver damage and oncolytic efficacy against prostate cancers after single intravenous treatment in mice. Results Ad5, Ad6, and Ad657 had similar in vitro oncolytic activity against human prostate cancer cells. Ad5 provoked the highest level of liver toxicity after intravenous injection and Ad657 caused the least damage in mice. Previous data demonstrated that Ad6 was superior to Ad5 at killing distant subcutaneous prostate cancer tumors in mouse models after a intravenous injection. Given this, Ad657 was compared to the Ad6 benchmark virus by single intravenous injection into mice bearing subcutaneous human DU145 prostate cancers. Under these conditions, Ad657 first infected the liver and then reached distant tumors. Both Ad6 and Ad657 mediated significant delays in tumor growth and extension of survival with Ad6 mediating higher efficacy. Conclusions These data suggest that Ad657 may have utility as a local or systemic oncolytic virotherapy for prostate cancers. These data also lay the foundation for serotype-switching with oncolytic species C Ads.
Collapse
Affiliation(s)
- Tien V Nguyen
- Department of Internal Medicine, Division of Infectious Diseases
| | - Catherine M Crosby
- Virology and Gene Therapy Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences
| | - Gregory J Heller
- Postbaccalaureate Research Education Program, Mayo Clinic Graduate School of Biomedical Sciences
| | - Zachary I Mendel
- Postbaccalaureate Research Education Program, Mayo Clinic Graduate School of Biomedical Sciences
| | - Mary E Barry
- Department of Internal Medicine, Division of Infectious Diseases
| | - Michael A Barry
- Department of Internal Medicine, Division of Infectious Diseases.,Department of Immunology.,Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
29
|
Haque E, Banik U, Monowar T, Anthony L, Adhikary AK. Worldwide increased prevalence of human adenovirus type 3 (HAdV-3) respiratory infections is well correlated with heterogeneous hypervariable regions (HVRs) of hexon. PLoS One 2018; 13:e0194516. [PMID: 29590206 PMCID: PMC5874027 DOI: 10.1371/journal.pone.0194516] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 03/05/2018] [Indexed: 12/21/2022] Open
Abstract
Human adenovirus type 3 (HAdV-3) respiratory infections occurs worldwide in both children and adults, leading to severe morbidity and mortality, particularly in the paediatric age group and especially in neonates. During HAdV infection, neutralizing antibodies are formed against the epitopes located in the hyper variable regions (HVRs) of the hexon protein. These neutralizing antibodies provide protection against reinfection by viruses of the same type. Therefore it is reasonable to speculate that variations of HAdV-3 in the HVRs could impair the immunity acquired by previous infection with a different strain with variation in its HVRs. HAdV-3 has recently become the major agent of acute respiratory infection worldwide, being responsible for 15% to 87% of all adenoviral respiratory infections. However, despite the increased prevalence of HAdV-3 as respiratory pathogen, the diversity of hexon proteins in circulating strains remains unexplored. This study was designed to explore the variation in HVRs of hexon among globally distributed strains of HAdV-3 as well as to discover possible relationship among them, thus possibly shedding light on the cause for the increased prevalence of HAdV-3. In this study, for the first time we analysed the hexon proteins of all 248 available strains of HAdV-3 from the NCBI database and compared them with those of the HAdV-3 prototype (GB stain). We found that the HVRs of HAdV-3 strains circulating worldwide were highly heterogeneous and have been mutating continuously since -their original isolation. Based on their immense heterogeneity, the strains can be categorized into 25 hexon variants (3Hv-1 to 3Hv-25), 4 of which (3Hv-1 to 3Hv-4) comprises 80% of the strains. This heterogeneity may explain why HAdV-3 has become the most prevalent HAdVs type worldwide. The heterogeneity of hexon proteins also shows that the development of a vaccine against HAdV-3 might be challenging. The data on hexon variants provided here may be useful for the future epidemiological study of HAdV-3 infection.
Collapse
Affiliation(s)
- Ezazul Haque
- Unit of Microbiology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, Bedong, Kedah, Malaysia
| | - Urmila Banik
- Unit of Pathology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, Bedong, Kedah, Malaysia
| | - Tahmina Monowar
- Unit of Microbiology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, Bedong, Kedah, Malaysia
| | - Leela Anthony
- Unit of Community Medicine, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, Bedong, Kedah, Malaysia
| | - Arun Kumar Adhikary
- Unit of Microbiology, AIMST University, Faculty of Medicine, Jalan Bedong Semeling, Bedong, Kedah, Malaysia
| |
Collapse
|
30
|
Feng Y, Sun X, Ye X, Feng Y, Wang J, Zheng X, Liu X, Yi C, Hao M, Wang Q, Li F, Xu W, Li L, Li C, Zhou R, Chen L, Feng L. Hexon and fiber of adenovirus type 14 and 55 are major targets of neutralizing antibody but only fiber-specific antibody contributes to cross-neutralizing activity. Virology 2018; 518:272-283. [PMID: 29550678 DOI: 10.1016/j.virol.2018.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 03/02/2018] [Accepted: 03/05/2018] [Indexed: 12/19/2022]
Abstract
Re-emerging human adenoviruses type 14 (HAdV14) and 55 (HAdV55) represent two highly virulent adenoviruses. The neutralizing antibody (nAb) responses elicited by infection or immunization remain largely unknown. Herein, we generated hexon-chimeric HAdV14 viruses harboring each single or entire hexon hyper-variable-regions (HVR) from HAdV55, and determined the neutralizing epitopes of human and mouse nAbs. In human sera, hexon-targeting nAbs are type-specific and mainly recognize HVR2, 5, and 7. Fiber-targeting nAbs are only detectable in sera cross-neutralizing HAdV14 and HAdV55 and contribute substantially to cross-neutralization. Penton-binding antibodies, however, show no significant neutralizing activities. In mice immunized with HAdV14 or HAdV55, a single immunization mainly elicited hexon-specific nAbs, which recognized HAdV14 HVR1, 2, and 7 and HAdV55 HVR1 and 2, respectively. After a booster immunization, cross-neutralizing fiber-specific nAbs became detectable. These results indicated that hexon elicits type-specific nAbs whereas fiber induces cross-neutralizing nAbs to HAdV14 and HAdV55, which are of significance in vaccine development.
Collapse
Affiliation(s)
- Ying Feng
- State Key Laboratories of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiang West Road, Guangzhou 510230, China; Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Xikui Sun
- School of Biomedical Sciences, Huaqiao University, No. 269 Chenghua North Road, Quanzhou 362021, China
| | - Xianmiao Ye
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Yupeng Feng
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Jinlin Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Xuehua Zheng
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Xinglong Liu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Changhua Yi
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Mingli Hao
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China; School of Biomedical Sciences, Huaqiao University, No. 269 Chenghua North Road, Quanzhou 362021, China
| | - Qian Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China
| | - Feng Li
- Institute of Infectious Diseases, Guangzhou Eighth people's Hospital, Guangzhou Medical University, No. 627 Dongfeng East Road, Guangzhou 510060, China
| | - Wei Xu
- Institute of Infectious Diseases, Guangzhou Eighth people's Hospital, Guangzhou Medical University, No. 627 Dongfeng East Road, Guangzhou 510060, China
| | - Liang Li
- State Key Laboratories of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiang West Road, Guangzhou 510230, China
| | - Chufang Li
- State Key Laboratories of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiang West Road, Guangzhou 510230, China
| | - Rong Zhou
- State Key Laboratories of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiang West Road, Guangzhou 510230, China
| | - Ling Chen
- State Key Laboratories of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiang West Road, Guangzhou 510230, China; Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China.
| | - Liqiang Feng
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai Yuan Avenue, Guangzhou 510530, China.
| |
Collapse
|
31
|
Interaction of Human Enterochromaffin Cells with Human Enteric Adenovirus 41 Leads to Serotonin Release and Subsequent Activation of Enteric Glia Cells. J Virol 2018; 92:JVI.00026-18. [PMID: 29367250 DOI: 10.1128/jvi.00026-18] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 01/09/2018] [Indexed: 01/17/2023] Open
Abstract
Human adenovirus 41 (HAdV-41) causes acute gastroenteritis in young children. The main characteristics of HAdV-41 infection are diarrhea and vomiting. Nevertheless, the precise mechanism of HAdV-41-induced diarrhea is unknown, as a suitable small-animal model has not been described. In this study, we used the human midgut carcinoid cell line GOT1 to investigate the effect of HAdV-41 infection and the individual HAdV-41 capsid proteins on serotonin release by enterochromaffin cells and on enteric glia cell (EGC) activation. We first determined that HAdV-41 could infect the enterochromaffin cells. Immunofluorescence staining revealed that the cells expressed HAdV-41-specific coxsackievirus and adenovirus receptor (CAR); flow cytometry analysis supported these findings. HAdV-41 infection of the enterochromaffin cells induced serotonin secretion dose dependently. In contrast, control infection with HAdV-5 did not induce serotonin secretion in the cells. Confocal microscopy studies of enterochromaffin cells infected with HAdV-41 revealed decreased serotonin immunofluorescence compared to that in uninfected cells. Incubation of the enterochromaffin cells with purified HAdV-41 short fiber knob and hexon proteins increased the serotonin levels in the harvested cell supernatant significantly. HAdV-41 infection could also activate EGCs, as shown in the significantly altered expression of glia fibrillary acidic protein (GFAP) in EGCs incubated with HAdV-41. The EGCs were also activated by serotonin alone, as shown in the significantly increased GFAP staining intensity. Likewise, EGCs were activated by the cell supernatant of HAdV-41-infected enterochromaffin cells.IMPORTANCE The nonenveloped human adenovirus 41 causes diarrhea, vomiting, dehydration, and low-grade fever mainly in children under 2 years of age. Even though acute gastroenteritis is well described, how human adenovirus 41 causes diarrhea is unknown. In our study, we analyzed the effect of human adenovirus 41 infection on human enterochromaffin cells and found it stimulates serotonin secretion in the cells, which is involved in regulation of intestinal secretion and gut motility and can also activate enteric glia cells, which are found in close proximity to enterochromaffin cells in vivo This disruption of gut barrier homeostasis as maintained by these cells following human adenovirus 41 infection might be a mechanism in enteric adenovirus pathogenesis in humans and could indicate a possible serotonin-dependent cross talk between human adenovirus 41, enterochromaffin cells, and enteric glia cells.
Collapse
|
32
|
Identification of a Critical and Conformational Neutralizing Epitope in Human Adenovirus Type 4 Hexon. J Virol 2018; 92:JVI.01643-17. [PMID: 29093098 PMCID: PMC5752955 DOI: 10.1128/jvi.01643-17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 10/23/2017] [Indexed: 01/24/2023] Open
Abstract
Human adenovirus type 4 (HAdV-4) is an epidemic virus that contributes to serious acute respiratory disease (ARD) in both pediatric and adult patients. However, no licensed drug or vaccine is currently available to the civilian population. The identification of neutralizing epitopes of HAdV-4 should allow the development of a novel antiviral vaccine and a novel gene transfer vector, and an effective neutralizing monoclonal antibody (MAb) will be useful in developing appropriate antiviral drugs. In this study, we report that MAb MN4b shows strong neutralizing activity against HAdV-4. MN4b recognizes a conformational epitope (418AGSEK422) within hypervariable region 7 (HVR7). Mutations within this site permitted HAdV-4 mutants to escape neutralization by MN4b and to resist neutralization by animal and human anti-HAdV-4 sera. A recombinant virus, rAd3-A4R7-1, containing the identified neutralizing epitope in the HVR7 region of HAdV-3 hexon, successfully induced antiserum that inhibited HAdV-4 infection. These results indicate that a small surface loop of HAdV-4 hexon is a critical neutralization epitope for this virus. The generation of MN4b and the identification of this neutralizing epitope may be useful in developing therapeutic treatment, a subunit vaccine, and a novel vector that can escape preexisting neutralization for HAdV-4. IMPORTANCE Neutralizing antibodies are considered good tools for the prevention of human adenovirus type 4 (HAdV-4) infections. The identification of the epitopes recognized by such neutralizing antibodies is important for the generation of recombinant antiviral vaccines. However, until now, no neutralizing epitope has been reported for HAdV-4. Here, we developed a serotype-specific neutralizing MAb directed against HAdV-4, MN4b. We provide evidence that MN4b recognizes a conformational epitope within HVR7 of HAdV-4 hexon. Antisera generated to this conformational epitope displayed on HAdV-3 hexon inhibited infection of AD293 cells by HAdV-4. Our findings are very important for the development of therapeutic treatment, a subunit vaccine, and a novel vector for HAdV-4.
Collapse
|
33
|
Pacesa M, Hendrickx R, Bieri M, Flatt JW, Greber UF, Hemmi S. Small-size recombinant adenoviral hexon protein fragments for the production of virus-type specific antibodies. Virol J 2017; 14:158. [PMID: 28821267 PMCID: PMC5563037 DOI: 10.1186/s12985-017-0822-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 08/08/2017] [Indexed: 12/30/2022] Open
Abstract
Background Adenoviruses are common pathogens infecting animals and humans. They are classified based on serology, or genome sequence information. These methods have limitations due to lengthy procedures or lack of infectivity data. Adenoviruses are easy to produce and amenable to genetic and biochemical modifications, which makes them a powerful tool for biological studies, and clinical gene-delivery and vaccine applications. Antibodies directed against adenoviral proteins are important diagnostic tools for virus identification in vivo and in vitro, and are used to elucidate infection mechanisms, often in combination with genomic sequencing and type specific information from hyper-variable regions of structural proteins. Results Here we describe a novel and readily useable method for cloning, expressing and purifying small fragments of hyper-variable regions 1-6 of the adenoviral hexon protein. We used these polypeptides as antigens for generating polyclonal rabbit antibodies against human adenovirus 3 (HAdV-B3), mouse adenovirus 1 (MAdV-1) and MAdV-2 hexon. In Western immunoblots with lysates from cells infected from thirteen human and three mouse viruses, these antibodies bound to homologous full-length hexon protein and revealed variable levels of cross-reactivity to heterologous hexons. Results from immuno-fluorescence and electron microscopy studies indicated that HAdV-B3 and MAdV-2 hexon antibodies recognized native forms of hexon. Conclusions The procedure described here can in principle be applied to any adenovirus for which genome sequence information is available. It provides a basis for generating novel type-specific tools in diagnostics and research, and extends beyond the commonly used anti-viral antibodies raised against purified viruses or subviral components. Electronic supplementary material The online version of this article (doi:10.1186/s12985-017-0822-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Martin Pacesa
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland
| | - Rodinde Hendrickx
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland.,Molecular Life Sciences Graduate School, Eidgenössische Technische Hochschule and University of Zurich, CH-8057, Zurich, Switzerland
| | - Manuela Bieri
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland.,Molecular Life Sciences Graduate School, Eidgenössische Technische Hochschule and University of Zurich, CH-8057, Zurich, Switzerland
| | - Justin W Flatt
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland
| | - Urs F Greber
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland
| | - Silvio Hemmi
- Institute of Molecular Life Sciences, University of Zurich, CH-8057, Zurich, Switzerland.
| |
Collapse
|
34
|
Paulini I, Siqueira-Silva J, Thomaz L, Rocha L, Harsi C, Bellei N, Granato C. Development of a prototype immunochromatographic test for rapid diagnosis of respiratory adenovirus infection. Braz J Infect Dis 2017. [PMID: 28623675 PMCID: PMC9425546 DOI: 10.1016/j.bjid.2017.03.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Human adenoviruses comprise an important group of etiologic agents that are responsible for various diseases in adults and children, such as respiratory, ocular, gastroenteric, and urinary infections. In immunocompromised and organ-transplanted individuals, these agents can cause generalized infections. Rapid diagnostic methods for detecting these infectious agents are not widely available. The aim of this work was to produce monoclonal and polyclonal anti-adenovirus antibodies to be used in a rapid diagnostic test for respiratory infections. Adenovirus hexons were satisfactorily purified by ultracentrifugation and chromatography. After virus purification, anti-hexon monoclonal antibodies were produced and characterized, following classical methods. Antibodies were specific for adenoviruses 2, 3, 5, and 41. The proposed immunochromatographic test was standardized using colloidal gold. The standardization of the rapid test was sufficient to detect adenovirus antigens (in nasopharyngeal lavage samples) with sensitivity of 100% and specificity of 85% when compared to direct immunofluorescence. The immunochromatographic assay prototype was sufficiently sensitive to detect B (3), C (2 and 5), and F (41) adenovirus samples. Although based on preliminary data, the test demonstrated the same performance as direct immunofluorescence, but with the advantage of being a point-of-care test. Further studies are still needed to confirm its effectiveness in clinical practice.
Collapse
Affiliation(s)
- Inarei Paulini
- Universidade Federal de São Paulo, Departamento de Medicina, Laboratório de Virologia, Disciplina de Infectologia, São Paulo, SP, Brazil.
| | - Joselma Siqueira-Silva
- Universidade de São Paulo, Instituto de Biociências, Departamento de Microbiologia, Laboratório de Adenovírus, São Paulo, SP, Brazil
| | - Luciana Thomaz
- Instituto de Biociências, Departamento de Microbiologia, Laboratório de Micologia, São Paulo, SP, Brazil
| | - Leticia Rocha
- Instituto Butantan, Laboratório de Bacteriologia, São Paulo, SP, Brazil
| | - Charlotte Harsi
- Universidade de São Paulo, Instituto de Biociências, Departamento de Microbiologia, Laboratório de Adenovírus, São Paulo, SP, Brazil
| | - Nancy Bellei
- Universidade Federal de São Paulo, Departamento de Medicina, Laboratório de Virologia, Disciplina de Infectologia, São Paulo, SP, Brazil
| | - Celso Granato
- Universidade Federal de São Paulo, Departamento de Medicina, Laboratório de Virologia, Disciplina de Infectologia, São Paulo, SP, Brazil
| |
Collapse
|
35
|
Niczyporuk JS. Molecular characterisation of fowl adenovirus type 7 isolated from poultry associated with inclusion body hepatitis in Poland. Arch Virol 2017; 162:1325-1333. [PMID: 28160143 PMCID: PMC5387021 DOI: 10.1007/s00705-017-3240-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/04/2017] [Indexed: 11/28/2022]
Abstract
The fowl adenovirus field strain FAdV-JSN-5/10j (GenBank accession number KP879219) was isolated from the intestine of a 7-week-old chicken diagnosed with inclusion body hepatitis and simultaneously with Marek’s disease, and for that reason, it was chosen for molecular study. It was identified as fowl adenovirus genotype 7 (species Fowl aviadenovirus E) based on nucleotide sequence analysis of the loop L1 region of the hexon gene. Nucleotide sequence alignment of this strain, FAdV-7 reference strains B-3A ATCC VR-832 (AF339922) and YR36 (AF508955), and eight additional FAdV-7 field strains confirmed its classification as FAdV-JS-5/10j and showed that these viruses are very similar to each other. Additionally, we described mutations and their influence on the amino acid sequence, nucleotide composition, and relative synonymous codon usage. Immunofluorescence of cell cultures infected with 104.5 TCID 50 per 0.1-ml dose of the FAdV-JSN-5/10j strain demonstrated the presence of a cytopathic effect. Infection of fowl with adenoviruses raises concerns for poultry production, and thus, the efficient detection of adenovirus infection is crucial. This is the first attempt to describe the molecular characteristics of FadV-7 strains isolated in Poland.
Collapse
Affiliation(s)
- Jowita Samanta Niczyporuk
- Department of Poultry Viral Disease, National Veterinary Research Institute, Partyzantów 57 Avenue, 24-100, Pulawy, Poland.
| |
Collapse
|
36
|
Zhang T, Jin Q, Ding P, Wang Y, Chai Y, Li Y, Liu X, Luo J, Zhang G. Molecular epidemiology of hydropericardium syndrome outbreak-associated serotype 4 fowl adenovirus isolates in central China. Virol J 2016; 13:188. [PMID: 27863494 PMCID: PMC5116161 DOI: 10.1186/s12985-016-0644-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 11/04/2016] [Indexed: 01/31/2023] Open
Abstract
In several parts of China, there have been a large number of hydropericardium syndrome (HPS) outbreaks caused by serotype 4 fowl adenovirus (FAdV-4) in broiler chickens since 2015. These outbreak-associated FAdV-4 strains were distinct from previous circulating strains which did not lead to severe HPS outbreaks. To better understand the molecular epidemiology of the currently circulating FAdV strains for effective diagnosis and treatment of HPS, we isolated 12 HPS outbreak-associated FAdV-4 strains from different regions in central China and investigated their molecular characteristics by performing phylogenetic analyses based on the hexon genes. Our results indicated the FAdV-4 strains in this study all belonged to serotype FAdV-4, species FAdV-C. And in comparison with ON1, KR5, MX-SHP95, PK-01, PJ-06 strains within the cluster where outbreak-associated FAdV-4 strains were located, the nucleotide sequence divergence were 1.31, 1.10, 1.42, 2.77 and 2.84%, respectively. Phylogenetic analyses revealed the hexon genes of the 12 outbreak-associated strains clustered to a relatively independent branch of the tree, and evolved from the same ancestor and we suggested that these outbreak-associated FAdV-4 strains originate from earlier strains in India.
Collapse
Affiliation(s)
- Teng Zhang
- College of Life Science, Henan Agricultural University, Wenhua Road No. 95, Zhengzhou, 450002, People's Republic of China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China
| | - Qianyue Jin
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, People's Republic of China
| | - Peiyang Ding
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China.,College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, 712100, Shaanxi, China
| | - Yinbiao Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, People's Republic of China
| | - Yongxiao Chai
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China.,College of Animal Husbandry and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Yafei Li
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China.,College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, 712100, Shaanxi, China
| | - Xiao Liu
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China.,College of Animal Husbandry and Veterinary Medicine, Henan Agricultural University, 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, Huayuan Road No.116, 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, Huayuan Road No.116, Zhengzhou, 450002, People's Republic of China. .,College of Animal Husbandry and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, People's Republic of China.
| |
Collapse
|
37
|
Li H, Wang J, Qiu L, Han Z, Liu S. Fowl adenovirus species C serotype 4 is attributed to the emergence of hepatitis-hydropericardium syndrome in chickens in China. INFECTION GENETICS AND EVOLUTION 2016; 45:230-241. [PMID: 27615553 DOI: 10.1016/j.meegid.2016.09.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/09/2016] [Accepted: 09/06/2016] [Indexed: 01/14/2023]
Abstract
Since July in 2015, an emerging infectious disease of Hepatitis-Hydropericardium syndrome (HHS) was prevalent in chicken flocks in China. To confirm the causative agent and investigate the epidemiology of the disease, a total of 38 chicken flocks including 187 samples from Jilin, Liaoning, Heilongjiang, Henan, Anhui, Hubei, Jiangxi, Xinjiang, Shandong and Hunan provinces in China were collected and determined by PCR detection, sequencing, phylogenetic analysis and virus isolation. 81 samples (positive rate of samples, 81/187, 43.3%) distributed in 33 chicken flocks (positive rate of chicken flocks, 33/38, 86.8%) were detected to be positive for fowl adenovirus (FAdV) by PCR method, of which 30 were determined as FAdV species C, 41 were species D, 9 were species E and 1 was uncertain for the viral species by phylogenetic analysis, implicating that at least three species (C, D and E) of FAdVs were prevalent in China and the species C and D were predominantly the prevalent viral strains. Interestingly, our results indicated that two types of FAdVs (C and D) co-existed in one flock, resulting in complex condition for the prevalence of the disease. In addition, 13 viral strains of FAdV-C were isolated from different geographic areas and one of the isolates from Henan province, designated HN/151025 strain, was inoculated into 40-day-old specific pathogen free chickens via intramuscular or oral route to evaluate the pathogenicity. It was found that 90% (9/10) chickens died in the intramuscular injection group and 30% (3/10) birds died in the oral route infection group after challenge. Histopathology examination displayed that the pathology confined to liver, kidney, spleen, and heart. These results indicated that the virus was a highly virulent strain.
Collapse
Affiliation(s)
- Huixin Li
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China; College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Juan Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China; College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Liye Qiu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China; College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Zongxi Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China; College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Shengwang Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China; College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China.
| |
Collapse
|
38
|
Zhang C, Zhou D. Adenoviral vector-based strategies against infectious disease and cancer. Hum Vaccin Immunother 2016; 12:2064-2074. [PMID: 27105067 PMCID: PMC4994731 DOI: 10.1080/21645515.2016.1165908] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Adenoviral vectors are widely employed against infectious diseases or cancers, as they can elicit specific antibody responses and T cell responses when they are armed with foreign genes as vaccine carriers, and induce apoptosis of the cancer cells when they are genetically modified for cancer therapy. In this review, we summarize the biological characteristics of adenovirus (Ad) and the latest development of Ad vector-based strategies for the prevention and control of emerging infectious diseases or cancers. Strategies to circumvent the pre-existing neutralizing antibodies which dampen the immunogenicity of Ad-based vaccines are also discussed.
Collapse
Affiliation(s)
- Chao Zhang
- a Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China
| | - Dongming Zhou
- a Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China
| |
Collapse
|
39
|
Yan J, Dong J, Wu J, Zhu R, Wang Z, Wang B, Wang L, Wang Z, Zhang H, Wu H, Yu B, Kong W, Yu X. Interaction between hexon and L4-100K determines virus rescue and growth of hexon-chimeric recombinant Ad5 vectors. Sci Rep 2016; 6:22464. [PMID: 26934960 PMCID: PMC4776158 DOI: 10.1038/srep22464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 02/11/2016] [Indexed: 11/23/2022] Open
Abstract
The immunogenicity of recombinant adenovirus serotype 5 (rAd5) vectors has been shown to be suppressed by neutralizing antibodies (NAbs) directed primarily against hexon hypervariable regions (HVRs). Preexisting immunity can be circumvented by replacing HVRs of rAd5 hexon with those derived from alternate adenovirus serotypes. However, chimeric modification of rAd5 hexon HVRs tends to cause low packaging efficiency or low proliferation of rAd5 vectors, but the related mechanism remains unclear. In this study, several Ad5-based vectors with precise replacement of HVRs with those derived from Ad37 and Ad43 were generated. We first observed that a HVR-exchanged rAd5 vector displayed a higher efficacy of the recombinant virus rescue and growth improvement compared with the rAd5 vector, although most hexon-chimeric rAd5 vectors constructed by us and other groups have proven to be nonviable or growth defective. We therefore evaluated the structural stability of the chimeric hexons and their interactions with the L4-100K chaperone. We showed that the viability of hexon-chimeric Ad5 vectors was not attributed to the structural stability of the chimeric hexon, but rather to the hexon maturation which was assisted by L4-100K. Our results suggested that the intricate interaction between hexon and L4-100K would determine the virus rescue and proliferation efficiency of hexon-chimeric rAd5 vectors.
Collapse
Affiliation(s)
- Jingyi Yan
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Jianing Dong
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Jiaxin Wu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Rui Zhu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Zhen Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Baoming Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Lizheng Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Zixuan Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Haihong Zhang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Hui Wu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Bin Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Wei Kong
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| | - Xianghui Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, China
| |
Collapse
|
40
|
Adenoviral Vector Vaccines Antigen Transgene. ADENOVIRAL VECTORS FOR GENE THERAPY 2016. [PMCID: PMC7150117 DOI: 10.1016/b978-0-12-800276-6.00021-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In the past decade adenovirus-based vaccines have progressed from preclinical studies, which universally showed the vectors’ high immunogenicity, to testing in humans. Clinical trials showed that adenovirus vectors are well tolerated by humans. They induce robust immune responses that can be expanded by booster immunization. The effect of preexisting neutralizing antibodies on vectors’ immunogenicity appears to be less severe than was observed in experimental animals and can readily be circumvented by using vectors to which most humans lack neutralizing antibodies. Additional clinical studies are needed to firmly establish the efficacy of adenoviral vector vaccines.
Collapse
|
41
|
Ma Q, Tian X, Jiang Z, Huang J, Liu Q, Lu X, Luo Q, Zhou R. Neutralizing epitopes mapping of human adenovirus type 14 hexon. Vaccine 2015; 33:6659-65. [PMID: 26546264 DOI: 10.1016/j.vaccine.2015.10.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 10/16/2015] [Accepted: 10/19/2015] [Indexed: 11/16/2022]
Abstract
Human adenoviruses 14 (HAdV-14) caused several clusters of acute respiratory disease (ARD) outbreaks in both civilian and military settings. The identification of the neutralizing epitopes of HAdV-14 is important for the surveillance and control of infection. Since the previous studies had indicated that the adenoviruses neutralizing epitopes were likely to be exposed on the surface of the hexon, four epitope peptides, A14R1 (residues 141-157), A14R2 (residues 181-189), A14R4 (residues 252-260) and A14R7 (residues 430-442) were predicted and mapped onto the 3D structures of hexon by homology modeling approach. Then the four peptides were synthesized, and all the four putative epitopes were identified as neutralizing epitopes by enzyme-linked immunosorbent assay (ELISA) and neutralization tests (NT). Finally we incorporated the four epitopes into human adenoviruses 3 (HAdV-3) vectors using the "antigen capsid-incorporation" strategy, and two chimeric adenoviruses, A14R2A3 and A14R4A3, were successfully obtained which displayed A14R2 and A14R4 respectively on the hexon surface of HAdV-3 virions. Further analysis showed that the two chimeric viruses antiserum could neutralize both HAdV-14 and HAdV-3 infection. The neutralization titers of anti-A14R4A3 group were significantly higher than the anti-KLH-A14R4 group (P=0.0442). These findings have important implications for the development of peptide-based broadly protective HAdV-14 and HAdV-3 bivalent vaccine.
Collapse
Affiliation(s)
- Qiang Ma
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, China; Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Xingui Tian
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, China; Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Zaixue Jiang
- Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Junfeng Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Qian Liu
- Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Xiaomei Lu
- Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Qingming Luo
- Dongguan Institute of Pediatrics, Dongguan Children's Hospital, Dongguan 523325, China.
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, China.
| |
Collapse
|
42
|
Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein. Viruses 2015; 7:5632-42. [PMID: 26516903 PMCID: PMC4632404 DOI: 10.3390/v7102896] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/10/2015] [Accepted: 10/20/2015] [Indexed: 01/19/2023] Open
Abstract
Human adenovirus type 55 (HAdV55) is a newly identified re-emergent acute respiratory disease (ARD) pathogen with a proposed recombination of hexon gene between HAdV11 and HAdV14 strains. The identification of the neutralizing epitopes is important for the surveillance and vaccine development against HAdV55 infection. In this study, four type-specific epitope peptides of HAdV55 hexon protein, A55R1 (residues 138 to 152), A55R2 (residues 179 to 187), A55R4 (residues 247 to 259) and A55R7 (residues 429 to 443), were predicted by multiple sequence alignment and homology modeling methods, and then confirmed with synthetic peptides by enzyme-linked immunosorbent assay (ELISA) and neutralization tests (NT). Finally, the A55R2 was incorporated into human adenoviruses 3 (HAdV3) and a chimeric adenovirus rAd3A55R2 was successfully obtained. The chimeric rAd3A55R2 could induce neutralizing antibodies against both HAdV3 and HAdV55. This current study will contribute to the development of novel adenovirus vaccine candidate and adenovirus structural analysis.
Collapse
|
43
|
Niczyporuk JS. Phylogenetic and geographic analysis of fowl adenovirus field strains isolated from poultry in Poland. Arch Virol 2015; 161:33-42. [DOI: 10.1007/s00705-015-2635-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 09/30/2015] [Indexed: 11/29/2022]
|
44
|
Fausther-Bovendo H, Kobinger GP. Pre-existing immunity against Ad vectors: humoral, cellular, and innate response, what's important? Hum Vaccin Immunother 2015; 10:2875-84. [PMID: 25483662 PMCID: PMC5443060 DOI: 10.4161/hv.29594] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pre-existing immunity against human adenovirus (HAd) serotype 5 derived vector in the human population is widespread, thus hampering its clinical use. Various components of the immune system, including neutralizing antibodies (nAbs), Ad specific T cells and type I IFN activated NK cells, contribute to dampening the efficacy of Ad vectors in individuals with pre-existing Ad immunity. In order to circumvent pre-existing immunity to adenovirus, numerous strategies, such as developing alternative Ad serotypes, varying immunization routes and utilizing prime-boost regimens, are under pre-clinical or clinical phases of development. However, these strategies mainly focus on one arm of pre-existing immunity. Selection of alternative serotypes has been largely driven by the absence in the human population of nAbs against them with little attention paid to cross-reactive Ad specific T cells. Conversely, varying the route of immunization appears to mainly rely on avoiding Ad specific tissue-resident T cells. Finally, prime-boost regimens do not actually circumvent pre-existing immunity but instead generate immune responses of sufficient magnitude to confer protection despite pre-existing immunity. Combining the above strategies and thus taking into account all components regulating pre-existing Ad immunity will help further improve the development of Ad vectors for animal and human use.
Collapse
|
45
|
Zhang C, Yang Y, Chi Y, Yin J, Yan L, Ku Z, Liu Q, Huang Z, Zhou D. Hexon-modified recombinant E1-deleted adenoviral vectors as bivalent vaccine carriers for Coxsackievirus A16 and Enterovirus 71. Vaccine 2015; 33:5087-94. [PMID: 26296491 DOI: 10.1016/j.vaccine.2015.08.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/31/2015] [Accepted: 08/06/2015] [Indexed: 02/03/2023]
Abstract
Hand, foot and mouth disease (HFMD) is a major public health concern in Asia; more efficient vaccines against HFMD are urgently required. Adenoviral (Ad) capsids have been used widely for the presentation of foreign antigens to induce specific immune responses in the host. Here, we describe a novel bivalent vaccine for HFMD based on the hexon-modified, E1-deleted chimpanzee adenovirus serotype 68 (AdC68). The novel vaccine candidate was generated by incorporating the neutralising epitope of Coxsackievirus A16 (CA16), PEP71, into hypervariable region 1 (HVR1), and a shortened neutralising epitope of Enterovirus 71 (EV71), sSP70, into HVR2 of the AdC68 hexon. In order to enhance the immunogenicity of EV71, VP1 of EV71 was cloned into the E1-region of the AdC68 vectors. The results demonstrated that these two epitopes were well presented on the virion surface and had high affinity towards specific antibodies, and VP1 of EV71 was also significantly expressed. In pre-clinical mouse models, the hexon-modified AdC68 elicited neutralising antibodies against both CA16 and EV71, which conferred protection to suckling mice against a lethal challenge of CA16 and EV71. In summary, this study demonstrates that the hexon-modified AdC68 may represent a promising bivalent vaccine carrier against EV71 and CA16 and an epitope-display platform for other pathogens.
Collapse
Affiliation(s)
- Chao Zhang
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yong Yang
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yudan Chi
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jieyun Yin
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lijun Yan
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Zhiqiang Ku
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qingwei Liu
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Zhong Huang
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Dongming Zhou
- Vaccine Research Center, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.
| |
Collapse
|
46
|
Green CA, Scarselli E, Sande CJ, Thompson AJ, de Lara CM, Taylor KS, Haworth K, Del Sorbo M, Angus B, Siani L, Di Marco S, Traboni C, Folgori A, Colloca S, Capone S, Vitelli A, Cortese R, Klenerman P, Nicosia A, Pollard AJ. Chimpanzee adenovirus- and MVA-vectored respiratory syncytial virus vaccine is safe and immunogenic in adults. Sci Transl Med 2015; 7:300ra126. [PMID: 26268313 PMCID: PMC4669850 DOI: 10.1126/scitranslmed.aac5745] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Respiratory syncytial virus (RSV) causes respiratory infection in annual epidemics, with infants and the elderly at particular risk of developing severe disease and death. However, despite its importance, no vaccine exists. The chimpanzee adenovirus, PanAd3-RSV, and modified vaccinia virus Ankara, MVA-RSV, are replication-defective viral vectors encoding the RSV fusion (F), nucleocapsid (N), and matrix (M2-1) proteins for the induction of humoral and cellular responses. We performed an open-label, dose escalation, phase 1 clinical trial in 42 healthy adults in which four different combinations of prime/boost vaccinations were investigated for safety and immunogenicity, including both intramuscular (IM) and intranasal (IN) administration of the adenovirus-vectored vaccine. The vaccines were safe and well tolerated, with the most common reported adverse events being mild injection site reactions. No vaccine-related serious adverse events occurred. RSV neutralizing antibody titers rose in response to IM prime with PanAd3-RSV and after IM boost for individuals primed by the IN route. Circulating anti-F immunoglobulin G (IgG) and IgA antibody-secreting cells (ASCs) were observed after the IM prime and IM boost. RSV-specific T cell responses were increased after the IM PanAd3-RSV prime and were most efficiently boosted by IM MVA-RSV. Interferon-γ (IFN-γ) secretion after boost was from both CD4(+) and CD8(+) T cells, without detectable T helper cell 2 (TH2) cytokines that have been previously associated with immune pathogenesis following exposure to RSV after the formalin-inactivated RSV vaccine. In conclusion, PanAd3-RSV and MVA-RSV are safe and immunogenic in healthy adults. These vaccine candidates warrant further clinical evaluation of efficacy to assess their potential to reduce the burden of RSV disease.
Collapse
Affiliation(s)
- Christopher A Green
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK.
| | - Elisa Scarselli
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Charles J Sande
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| | - Amber J Thompson
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| | - Catherine M de Lara
- Experimental Medicine Division, Nuffield Department of Medicine, Peter Medawar Building, University of Oxford, Oxford OX1 3SY, UK
| | - Kathryn S Taylor
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| | - Kathryn Haworth
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| | | | - Brian Angus
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| | - Loredana Siani
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Stefania Di Marco
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Cinzia Traboni
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Antonella Folgori
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Stefano Colloca
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Stefania Capone
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | - Alessandra Vitelli
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy
| | | | - Paul Klenerman
- Experimental Medicine Division, Nuffield Department of Medicine, Peter Medawar Building, University of Oxford, Oxford OX1 3SY, UK
| | - Alfredo Nicosia
- ReiThera SRL (formerly Okairos SRL), Viale Città d'Europa 679, 00144 Rome, Italy. CEINGE, Via Gaetano Salvatore 486, 80145 Naples, Italy. Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
| | - Andrew J Pollard
- Oxford Vaccine Group, Department of Paediatrics, and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford OX3 7LE, UK
| |
Collapse
|
47
|
Adhikary AK, Banik U. Human adenovirus type 8: the major agent of epidemic keratoconjunctivitis (EKC). J Clin Virol 2014; 61:477-86. [PMID: 25464969 DOI: 10.1016/j.jcv.2014.10.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 10/20/2014] [Accepted: 10/25/2014] [Indexed: 11/25/2022]
Abstract
Human adenovirus type 8 (HAdV-8) is the most common causative agent of a highly contagious eye disease known as epidemic keratoconjunctivitis (EKC). HAdV-8 strains have been classified into genome types HAdV-8A to 8K and HAdV/D1 to D12 according to restriction endonuclease analysis. This review focuses on the significance of HAdV-8 as an agent of EKC. Molecular analysis of HAdV-8 genome types HAdV-53 and HAdV-54 was performed to reveal potential genetic variation in the hexon and fiber, which might affect the antigenicity and tropism of the virus, respectively. On the basis of the published data, three patterns of HAdV-8 genome type distribution were observed worldwide: (1) genome types restricted to a microenvironment, (2) genome types distributed within a country, and (3) globally dispersed genome types. Simplot and zPicture showed that the HAdV-8 genome types were nearly identical to each other. HAdV-54 is very close to the HAdV-8P, B and E genomes, except in the hexon. In a restriction map, HAdV-8P, B, and E share a very high percentage of restriction sites with each other. Hypervariable regions (HVRs) of the hexon were conserved and were 100% identical among the genome types. The fiber knob of HAdV-8P, A, E, J and HAdV-53 were 100% identical. In phylogeny, HVRs of the hexon and fiber knob of the HAdV-8 genome types segregated into monophyletic clusters. Neutralizing antibodies against one genome type will provide protection against other genome types, and the selection of future vaccine strains would be simple due to the stable HVRs. Molecular analysis of whole genomes, particularly of the capsid proteins of the remaining genome types, would be useful to substantiate our observations.
Collapse
Affiliation(s)
- Arun Kumar Adhikary
- Unit of Microbiology, Faculty of Medicine, AIMST University, 08100 Bedong, Semeling, Kedah Darul Aman, Malaysia.
| | - Urmila Banik
- Unit of Pathology, Faculty of Medicine, AIMST University, 08100 Bedong, Semeling, Kedah Darul Aman, Malaysia
| |
Collapse
|
48
|
Dörrie J, Krug C, Hofmann C, Müller I, Wellner V, Knippertz I, Schierer S, Thomas S, Zipperer E, Printz D, Fritsch G, Schuler G, Schaft N, Geyeregger R. Human adenovirus-specific γ/δ and CD8+ T cells generated by T-cell receptor transfection to treat adenovirus infection after allogeneic stem cell transplantation. PLoS One 2014; 9:e109944. [PMID: 25289687 PMCID: PMC4188623 DOI: 10.1371/journal.pone.0109944] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 09/05/2014] [Indexed: 12/01/2022] Open
Abstract
Human adenovirus infection is life threatening after allogeneic haematopoietic stem cell transplantation (HSCT). Immunotherapy with donor-derived adenovirus-specific T cells is promising; however, 20% of all donors lack adenovirus-specific T cells. To overcome this, we transfected α/β T cells with mRNA encoding a T-cell receptor (TCR) specific for the HLA-A*0101-restricted peptide LTDLGQNLLY from the adenovirus hexon protein. Furthermore, since allo-reactive endogenous TCR of donor T lymphocytes would induce graft-versus-host disease (GvHD) in a mismatched patient, we transferred the TCR into γ/δ T cells, which are not allo-reactive. TCR-transfected γ/δ T cells secreted low quantities of cytokines after antigen-specific stimulation, which were increased dramatically after co-transfection of CD8α-encoding mRNA. In direct comparison with TCR-transfected α/β T cells, TCR-CD8α-co-transfected γ/δ T cells produced more tumor necrosis factor (TNF), and lysed peptide-loaded target cells as efficiently. Most importantly, TCR-transfected α/β T cells and TCR-CD8α-co-transfected γ/δ T cells efficiently lysed adenovirus-infected target cells. We show here, for the first time, that not only α/β T cells but also γ/δ T cells can be equipped with an adenovirus specificity by TCR-RNA electroporation. Thus, our strategy offers a new means for the immunotherapy of adenovirus infection after allogeneic HSCT.
Collapse
MESH Headings
- Adenoviridae Infections/etiology
- Adenoviridae Infections/immunology
- Adenoviridae Infections/prevention & control
- Adenoviruses, Human/immunology
- Amino Acid Sequence
- Antigens, Viral/chemistry
- Antigens, Viral/genetics
- Antigens, Viral/immunology
- CD8 Antigens/chemistry
- CD8 Antigens/genetics
- CD8 Antigens/immunology
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/virology
- Cloning, Molecular
- Cytokines/biosynthesis
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- Electroporation
- Gene Expression
- Hematopoietic Stem Cell Transplantation/adverse effects
- Humans
- Jurkat Cells
- Molecular Sequence Data
- Peptides/chemistry
- Peptides/genetics
- Peptides/immunology
- Peptides/pharmacology
- Primary Cell Culture
- RNA/genetics
- RNA/immunology
- Receptors, Antigen, T-Cell, alpha-beta/chemistry
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/chemistry
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Transfection
- Transplantation, Homologous
- Unrelated Donors
Collapse
Affiliation(s)
- Jan Dörrie
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christian Krug
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Hofmann
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ina Müller
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Verena Wellner
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ilka Knippertz
- Department of Immune Modulation at the Dept. of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Stephan Schierer
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Simone Thomas
- Department of Internal Medicine III, University Hospital of Regensburg, Regensburg, Germany
| | - Elke Zipperer
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Vienna, Austria
| | - Dieter Printz
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Vienna, Austria
| | - Gerhard Fritsch
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Vienna, Austria
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Gerold Schuler
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Niels Schaft
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- * E-mail:
| | - Rene Geyeregger
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Vienna, Austria
| |
Collapse
|
49
|
Majhen D, Calderon H, Chandra N, Fajardo CA, Rajan A, Alemany R, Custers J. Adenovirus-based vaccines for fighting infectious diseases and cancer: progress in the field. Hum Gene Ther 2014; 25:301-17. [PMID: 24580050 DOI: 10.1089/hum.2013.235] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The field of adenovirology is undergoing rapid change in response to increasing appreciation of the potential advantages of adenoviruses as the basis for new vaccines and as vectors for gene and cancer therapy. Substantial knowledge and understanding of adenoviruses at a molecular level has made their manipulation for use as vaccines and therapeutics relatively straightforward in comparison with other viral vectors. In this review we summarize the structure and life cycle of the adenovirus and focus on the use of adenovirus-based vectors in vaccines against infectious diseases and cancers. Strategies to overcome the problem of preexisting antiadenovirus immunity, which can hamper the immunogenicity of adenovirus-based vaccines, are discussed. When armed with tumor-associated antigens, replication-deficient and oncolytic adenoviruses can efficiently activate an antitumor immune response. We present concepts on how to use adenoviruses as therapeutic cancer vaccines and consider some of the strategies used to further improve antitumor immune responses. Studies that explore the prospect of adenoviruses as vaccines against infectious diseases and cancer are underway, and here we give an overview of the latest developments.
Collapse
|
50
|
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.
Collapse
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
| | | | | | | |
Collapse
|