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Li W, Liu Z. Advances in glycan-specific biomimetic molecular recognition and its biomedical applications. Chem Commun (Camb) 2025; 61:6739-6754. [PMID: 40243224 DOI: 10.1039/d5cc01003a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2025]
Abstract
Glycan-mediated recognition is critically involved in a variety of pathophysiological events, so strategies targeting unique glycosylation could offer opportunities for novel disease diagnostics and therapeutics. Herein, we survey the current progress in glycan-binding entities and their biomedical applications. Particularly focusing on biologically promising artificial receptors, including boronate affinity-based molecularly imprinted polymers (MIPs) and anti-glycan aptamers, we summarize significant efforts in the recognition of glycans by MIPs and aptamers with high affinity and exquisite specificity. Furthermore, we highlight successful examples in biomedical fields of antiviral treatment, cancer diagnostics and targeted therapeutics. Finally, we briefly sketch the remaining challenges and future perspectives. Collectively, this review provides significant insights for further exploration of glycan-specific biomimetic materials in the broad biomedical area.
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Affiliation(s)
- Wei Li
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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2
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Liaci AM, Chandra N, Vodnala SM, Strebl M, Kumar P, Pfenning V, Bachmann P, Caraballo R, Chai W, Johansson E, Elofsson M, Feizi T, Liu Y, Stehle T, Arnberg N. Extended receptor repertoire of an adenovirus associated with human obesity. PLoS Pathog 2025; 21:e1012892. [PMID: 39883726 PMCID: PMC11813153 DOI: 10.1371/journal.ppat.1012892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2024] [Revised: 02/11/2025] [Accepted: 01/07/2025] [Indexed: 02/01/2025] Open
Abstract
Human adenovirus type 36 (HAdV-D36) has been putatively linked to obesity in animals and has been associated with obesity in humans in some but not all studies. Despite extensive epidemiological research there is limited information about its receptor profile. We investigated the receptor portfolio of HAdV-D36 using a combined structural biology and virology approach. The HAdV-D36 fiber knob domain (FK), which mediates the primary attachment of many HAdVs to host cells, has a significantly elongated DG loop that alters known binding interfaces for established adenovirus receptors such as the coxsackie- and adenovirus receptor (CAR) and CD46. Our data suggest that HAdV-D36 attaches to host cells using a versatile receptor pool comprising sialic acid-containing glycans and CAR. Sialic acids are recognized at the same binding site used by other HAdVs of species D such as HAdV-D37. Using glycan microarrays, we demonstrate that HAdV-D36 displays a binding preference for glycans containing a rare sialic acid variant, 4-O,5-N-diacetylneuraminic acid, over the more common 5-N-acetylneuraminic acid. To date, this sialic acid variant has not been detected in humans, although it can be synthesized by various animal species, including a range of domestic and livestock animals. Taken together, our results indicate that HAdV-D36 has evolved to recognize a specialized set of primary attachment receptors that are different from known HAdV types and coincides with a unique host range and pathogenicity profile.
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Affiliation(s)
- A. Manuel Liaci
- Interfaculty Institute of Biochemistry, University of Tuebingen: Eberhard Karls Universitat Tubingen, Tuebingen, Germany
| | - Naresh Chandra
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | | | - Michael Strebl
- Interfaculty Institute of Biochemistry, University of Tuebingen: Eberhard Karls Universitat Tubingen, Tuebingen, Germany
| | - Pravin Kumar
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Vanessa Pfenning
- Interfaculty Institute of Biochemistry, University of Tuebingen: Eberhard Karls Universitat Tubingen, Tuebingen, Germany
| | - Paul Bachmann
- Interfaculty Institute of Biochemistry, University of Tuebingen: Eberhard Karls Universitat Tubingen, Tuebingen, Germany
| | - Rémi Caraballo
- Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Wengang Chai
- Glycosciences Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Emil Johansson
- Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Mikael Elofsson
- Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Ten Feizi
- Glycosciences Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Yan Liu
- Glycosciences Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tuebingen: Eberhard Karls Universitat Tubingen, Tuebingen, Germany
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Niklas Arnberg
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
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3
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Wu EY, Robertson AM, Zhu H(H, Stasiak C, Murray-Nerger LA, Romanoff E, Woon J, Bromme BA, Smith JG. CD46 Is a Protein Receptor for Human Adenovirus Type 64. Viruses 2024; 16:1827. [PMID: 39772136 PMCID: PMC11680334 DOI: 10.3390/v16121827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2024] [Revised: 11/15/2024] [Accepted: 11/19/2024] [Indexed: 01/11/2025] Open
Abstract
Certain species D human adenoviruses (HAdV-D19, -D37, and -D64) are causative agents of epidemic keratoconjunctivitis. HAdV-D37 has previously been shown to bind CD46 (membrane cofactor protein) and sialic acid as adhesion receptors. HAdV-D64 is genetically highly similar to HAdV-D37, with an identical fiber protein sequence, but differs substantially in its penton base and hexon proteins, two other major capsid components, due to genetic recombination. Here, we demonstrate that, like HAdV-D37, HAdV-D64 virions bind directly to CD46 and that CD46 and sialic acid also function as receptors for HAdV-D64 on multiple cell types. Expression of CD46 on CD46-negative cells conferred susceptibility to HAdV-D64 entry. Specifically blocking HAdV-D64 binding to CD46 on the host cell surface strongly inhibits viral entry and gene delivery into multiple cell lines that represent target tissues. We show that CD46 is expressed on human conjunctival epithelial cells and directly binds to the HAdV-D64 virion. Our results suggest that HAdV-D64 may be used to deliver genes to target conjunctival cells and that interrupting HAdV-D64 entry through its interaction with CD46 may prevent or lessen adenovirus-associated ocular disease.
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Affiliation(s)
- Eugene Y. Wu
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Alexander M. Robertson
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Hanglin (Henry) Zhu
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Corina Stasiak
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Laura A. Murray-Nerger
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Emily Romanoff
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Jesse Woon
- Department of Biology, University of Richmond, Richmond, VA 23173, USA; (A.M.R.); (H.Z.); (E.R.)
| | - Beth A. Bromme
- Department of Microbiology, University of Washington School of Medicine, Seattle, WA 98109, USA (J.G.S.)
| | - Jason G. Smith
- Department of Microbiology, University of Washington School of Medicine, Seattle, WA 98109, USA (J.G.S.)
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4
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Zhang H, Wang H, An Y, Chen Z. Construction and application of adenoviral vectors. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102027. [PMID: 37808925 PMCID: PMC10556817 DOI: 10.1016/j.omtn.2023.09.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Adenoviral vectors have been widely used as vaccine candidates or potential vaccine candidates against infectious diseases due to the convenience of genome manipulation, their ability to accommodate large exogenous gene fragments, easy access of obtaining high-titer of virus, and high efficiency of transduction. At the same time, adenoviral vectors have also been used extensively in clinical research for cancer gene therapy and treatment of diseases caused by a single gene defect. However, application of adenovirus also faces a series of challenges such as poor targeting, strong immune response against the vector itself, and they cannot be used repeatedly. It is believed that these problems will be solved gradually with further research and technological development in related fields. Here, we review the construction methods of adenoviral vectors, including "gutless" adenovirus and discuss application of adenoviral vectors as prophylactic vaccines for infectious pathogens and their application prospects as therapeutic vaccines for cancer and other kinds of chronic infectious disease such as human papillomavirus, hepatitis B virus, and hepatitis C virus.
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Affiliation(s)
- Hongbo Zhang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Hongdan Wang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Youcai An
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Ze Chen
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
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5
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Mundy RM, Baker AT, Bates EA, Cunliffe TG, Teijeira-Crespo A, Moses E, Rizkallah PJ, Parker AL. Broad sialic acid usage amongst species D human adenovirus. NPJ VIRUSES 2023; 1:1. [PMID: 38665237 PMCID: PMC11041768 DOI: 10.1038/s44298-023-00001-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 07/27/2023] [Indexed: 04/28/2024]
Abstract
Human adenoviruses (HAdV) are widespread pathogens causing usually mild infections. The Species D (HAdV-D) cause gastrointestinal tract infections and epidemic keratoconjunctivitis (EKC). Despite being significant pathogens, knowledge around HAdV-D mechanism of cell infection is lacking. Sialic acid (SA) usage has been proposed as a cell infection mechanism for EKC causing HAdV-D. Here we highlight an important role for SA engagement by many HAdV-D. We provide apo state crystal structures of 7 previously undetermined HAdV-D fiber-knob proteins, and structures of HAdV-D25, D29, D30 and D53 fiber-knob proteins in complex with SA. Biologically, we demonstrate that removal of cell surface SA reduced infectivity of HAdV-C5 vectors pseudotyped with HAdV-D fiber-knob proteins, whilst engagement of the classical HAdV receptor CAR was variable. Our data indicates variable usage of SA and CAR across HAdV-D. Better defining these interactions will enable improved development of antivirals and engineering of the viruses into refined therapeutic vectors.
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Affiliation(s)
- Rosie M. Mundy
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Alexander T. Baker
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Emily A. Bates
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Tabitha G. Cunliffe
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Alicia Teijeira-Crespo
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Elise Moses
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Pierre J. Rizkallah
- Division of Infection & Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
| | - Alan L. Parker
- Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
- Systems Immunity University Research Institute, Cardiff University School of Medicine, Cardiff, CF14 4XN UK
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6
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dos Santos Natividade R, Koehler M, Gomes PSFC, Simpson JD, Smith SC, Gomes DEB, de Lhoneux J, Yang J, Ray A, Dermody TS, Bernardi RC, Ogden KM, Alsteens D. Deciphering molecular mechanisms stabilizing the reovirus-binding complex. Proc Natl Acad Sci U S A 2023; 120:e2220741120. [PMID: 37186838 PMCID: PMC10214207 DOI: 10.1073/pnas.2220741120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Mammalian orthoreoviruses (reoviruses) serve as potential triggers of celiac disease and have oncolytic properties, making these viruses potential cancer therapeutics. Primary attachment of reovirus to host cells is mainly mediated by the trimeric viral protein, σ1, which engages cell-surface glycans, followed by high-affinity binding to junctional adhesion molecule-A (JAM-A). This multistep process is thought to be accompanied by major conformational changes in σ1, but direct evidence is lacking. By combining biophysical, molecular, and simulation approaches, we define how viral capsid protein mechanics influence virus-binding capacity and infectivity. Single-virus force spectroscopy experiments corroborated by in silico simulations show that GM2 increases the affinity of σ1 for JAM-A by providing a more stable contact interface. We demonstrate that conformational changes in σ1 that lead to an extended rigid conformation also significantly increase avidity for JAM-A. Although its associated lower flexibility impairs multivalent cell attachment, our findings suggest that diminished σ1 flexibility enhances infectivity, indicating that fine-tuning of σ1 conformational changes is required to successfully initiate infection. Understanding properties underlying the nanomechanics of viral attachment proteins offers perspectives in the development of antiviral drugs and improved oncolytic vectors.
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Affiliation(s)
- Rita dos Santos Natividade
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
| | - Melanie Koehler
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
- Leibniz Institute for Food Systems Biology at the Technical University of Munich, 85354Freising, Germany
| | | | - Joshua D. Simpson
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
| | - Sydni Caet Smith
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, 37232Nashville, TN
| | | | - Juliette de Lhoneux
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
| | - Jinsung Yang
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
| | - Ankita Ray
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
| | - Terence S. Dermody
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA15213
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA15213
- Institute of Infection, Inflammation, and Immunity, University of Pittsburgh Medical Center, Children’s Hospital of Pittsburgh, Pittsburgh, PA15213
| | | | - Kristen M. Ogden
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, 37232Nashville, TN
- Department of Pediatrics, Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN37232
| | - David Alsteens
- Louvain Institute of Biomolecular Science and Technology, NanoBiophysics lab, Université catholique de Louvain, 1348Louvain-la-Neuve, Belgium
- Walloon Excellence in Life sciences and Biotechnology, Walloon Excellence Research Institute, 1300Wavre, Belgium
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7
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Schröer K, Alshawabkeh M, Schellhorn S, Bronder K, Zhang W, Ehrhardt A. Influence of Heparan Sulfate Proteoglycans and Factor X on species D Human Adenovirus Uptake and Transduction. Viruses 2022; 15:55. [PMID: 36680095 PMCID: PMC9866072 DOI: 10.3390/v15010055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
More than 100 human adenovirus (Ad) types were identified, of which species D comprises the largest group. Heparan sulfate proteoglycans (HSPGs) were shown to function as cell surface receptors for cell binding and uptake of some Ads, but a systematic analysis of species D Ads is lacking. Previous research focused on Ad5 and blood coagulation factor X (FX) complexes, which revealed that Ad5 can transduce cells with low expression levels of its main coxsackievirus-adenovirus receptor in the presence of high HSPG expression levels in a FX dependent manner. Based on our reporter gene-tagged Ad-library, we explored for the first time a broad spectrum of species D Ads to study the role of HSPG on their cellular uptake. This study was performed on three Chinese Hamster Ovary (CHO) cell lines with different forms of HSPG (only proteoglycan (745), non-sulfated HSPG (606) or sulfated HSPG (K1)). The effect of Ad:FX complexes on Ad uptake was explored in the presence of physiological levels of FX in blood (6-10 µg/mL). We found that sulfation of HSPG plays an important role in cellular uptake and transduction of FX-bound Ad5 but neither HSPG nor FX influenced uptake of all tested species D Ads. Because FX has no influence on transduction efficiencies of species D Ads and therefore may not bind to them, these Ads may not be protected from attack by neutralizing IgM antibodies or the complement pathway, which may have implications for species D Ads used as vaccine and gene therapy vectors.
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Affiliation(s)
- Katrin Schröer
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Montaha Alshawabkeh
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Sebastian Schellhorn
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Katrin Bronder
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Wenli Zhang
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Anja Ehrhardt
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Witten/Herdecke University, 58453 Witten, Germany
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8
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Wang WC, Sayedahmed EE, Mittal SK. Significance of Preexisting Vector Immunity and Activation of Innate Responses for Adenoviral Vector-Based Therapy. Viruses 2022; 14:v14122727. [PMID: 36560730 PMCID: PMC9787786 DOI: 10.3390/v14122727] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
An adenoviral (AdV)-based vector system is a promising platform for vaccine development and gene therapy applications. Administration of an AdV vector elicits robust innate immunity, leading to the development of humoral and cellular immune responses against the vector and the transgene antigen, if applicable. The use of high doses (1011-1013 virus particles) of an AdV vector, especially for gene therapy applications, could lead to vector toxicity due to excessive levels of innate immune responses, vector interactions with blood factors, or high levels of vector transduction in the liver and spleen. Additionally, the high prevalence of AdV infections in humans or the first inoculation with the AdV vector result in the development of vector-specific immune responses, popularly known as preexisting vector immunity. It significantly reduces the vector efficiency following the use of an AdV vector that is prone to preexisting vector immunity. Several approaches have been developed to overcome this problem. The utilization of rare human AdV types or nonhuman AdVs is the primary strategy to evade preexisting vector immunity. The use of heterologous viral vectors, capsid modification, and vector encapsulation are alternative methods to evade vector immunity. The vectors can be optimized for clinical applications with comprehensive knowledge of AdV vector immunity, toxicity, and circumvention strategies.
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9
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Urata R, Ikeda K, Yamazaki E, Ueno D, Katayama A, Shin-Ya M, Ohgitani E, Mazda O, Matoba S. Senescent endothelial cells are predisposed to SARS-CoV-2 infection and subsequent endothelial dysfunction. Sci Rep 2022; 12:11855. [PMID: 35879338 PMCID: PMC9314328 DOI: 10.1038/s41598-022-15976-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 07/01/2022] [Indexed: 12/11/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19), caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), remains to spread worldwide. COVID-19 is characterized by the striking high mortality in elderly; however, its mechanistic insights remain unclear. Systemic thrombosis has been highlighted in the pathogenesis of COVID-19, and lung microangiopathy in association with endothelial cells (ECs) injury has been reported by post-mortem analysis of the lungs. Here, we experimentally investigated the SARS-CoV-2 infection in cultured human ECs, and performed a comparative analysis for post-infection molecular events using early passage and replicative senescent ECs. We found that; (1) SARS-CoV-2 infects ECs but does not replicate and disappears in 72 hours without causing severe cell damage, (2) Senescent ECs are highly susceptible to SARS-CoV-2 infection, (3) SARS-CoV-2 infection alters various genes expression, which could cause EC dysfunctions, (4) More genes expression is affected in senescent ECs by SARS-CoV-2 infection than in early passage ECs, which might causes further exacerbated dysfunction in senescent ECs. These data suggest that sustained EC dysfunctions due to SARS-CoV-2 infection may contribute to the microangiopathy in the lungs, leading to deteriorated inflammation and thrombosis in COVID-19. Our data also suggest a possible causative role of EC senescence in the aggravated disease in elder COVID-19 patients.
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Affiliation(s)
- Ryota Urata
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Koji Ikeda
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan. .,Department of Epidemiology for Longevity and Regional Health, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan.
| | - Ekura Yamazaki
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Daisuke Ueno
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Akiko Katayama
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Masaharu Shin-Ya
- Department of Immunology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Eriko Ohgitani
- Department of Immunology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Osam Mazda
- Department of Immunology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan
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10
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Freitas MVD, Frâncio L, Haleva L, Matte UDS. Protection is not always a good thing: The immune system's impact on gene therapy. Genet Mol Biol 2022; 45:e20220046. [PMID: 35852088 PMCID: PMC9295005 DOI: 10.1590/1678-4685-gmb-2022-0046] [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: 02/17/2022] [Accepted: 05/18/2022] [Indexed: 11/22/2022] Open
Abstract
There are many clinical trials underway for the development of gene therapies, and some have resulted in gene therapy products being commercially approved already. Significant progress was made to develop safer and more effective strategies to deliver and regulate genetic products. An unsolved aspect is the immune system, which can affect the efficiency of gene therapy in different ways. Here we present an overview of approved gene therapy products and the immune response elicited by gene delivery systems. These include responses against the vector or its content after delivery and against the product of the corrected gene. Strategies to overcome the hurdles include hiding the vector or/and the transgene product from the immune system and hiding the immune system from the vector/transgene product. Combining different strategies, such as patient screening and intelligent vector design, gene therapy is set to make a difference in the life of patients with severe genetic diseases.
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Affiliation(s)
- Martiela Vaz de Freitas
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório Células Tecidos e Genes, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil.,Hospital de Clínicas de Porto Alegre, Núcleo de Bioinformática Centro de Pesquisa Experimental, Porto Alegre, RS, Brazil
| | - Lariane Frâncio
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório Células Tecidos e Genes, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Laura Haleva
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Porto Alegre, RS, Brazil
| | - Ursula da Silveira Matte
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório Células Tecidos e Genes, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil.,Hospital de Clínicas de Porto Alegre, Núcleo de Bioinformática Centro de Pesquisa Experimental, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Departamento de Genética, Porto Alegre, RS, Brazil
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11
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Hemsath JR, Liaci AM, Rubin JD, Parrett BJ, Lu SC, Nguyen TV, Turner MA, Chen CY, Cupelli K, Reddy VS, Stehle T, Liszewski MK, Atkinson JP, Barry MA. Ex Vivo and In Vivo CD46 Receptor Utilization by Species D Human Adenovirus Serotype 26 (HAdV26). J Virol 2022; 96:e0082621. [PMID: 34787457 PMCID: PMC8826919 DOI: 10.1128/jvi.00826-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/09/2021] [Indexed: 12/14/2022] Open
Abstract
Human adenovirus serotype 26 (Ad26) is used as a gene-based vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and HIV-1. However, its primary receptor portfolio remains controversial, potentially including sialic acid, coxsackie and adenovirus receptor (CAR), integrins, and CD46. We and others have shown that Ad26 can use CD46, but these observations were questioned on the basis of the inability to cocrystallize Ad26 fiber with CD46. Recent work demonstrated that Ad26 binds CD46 with its hexon protein rather than its fiber. We examined the functional consequences of Ad26 for infection in vitro and in vivo. Ectopic expression of human CD46 on Chinese hamster ovary cells increased Ad26 infection significantly. Deletion of the complement control protein domain CCP1 or CCP2 or the serine-threonine-proline (STP) region of CD46 reduced infection. Comparing wild-type and sialic acid-deficient CHO cells, we show that the usage of CD46 is independent of its sialylation status. Ad26 transduction was increased in CD46 transgenic mice after intramuscular (i.m.) injection but not after intranasal (i.n.) administration. Ad26 transduction was 10-fold lower than Ad5 transduction after intratumoral (i.t.) injection of CD46-expressing tumors. Ad26 transduction of liver was 1,000-fold lower than that ofAd5 after intravenous (i.v.) injection. These data demonstrate the use of CD46 by Ad26 in certain situations but also show that the receptor has little consequence by other routes of administration. Finally, i.v. injection of high doses of Ad26 into CD46 mice induced release of liver enzymes into the bloodstream and reduced white blood cell counts but did not induce thrombocytopenia. This suggests that Ad26 virions do not induce direct clotting side effects seen during coronavirus disease 2019 (COVID-19) vaccination with this serotype of adenovirus. IMPORTANCE The human species D Ad26 is being investigated as a low-seroprevalence vector for oncolytic virotherapy and gene-based vaccination against HIV-1 and SARS-CoV-2. However, there is debate in the literature about its tropism and receptor utilization, which directly influence its efficiency for certain applications. This work was aimed at determining which receptor(s) this virus uses for infection and its role in virus biology, vaccine efficacy, and, importantly, vaccine safety.
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Affiliation(s)
- Jack R. Hemsath
- Graduate Research Employee Program, Mayo Clinic, Rochester, Minnesota, USA
| | - A. Manuel Liaci
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
- Structural Biochemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, Utrecht, The Netherlands
| | - Jeffrey D. Rubin
- Virology and Gene Therapy Graduate Program, Mayo Clinic, Rochester, Minnesota, USA
| | - Brian J. Parrett
- Virology and Gene Therapy Graduate Program, Mayo Clinic, Rochester, Minnesota, USA
| | - Shao-Chia Lu
- Virology and Gene Therapy Graduate Program, Mayo Clinic, Rochester, Minnesota, USA
| | - Tien V. Nguyen
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Mallory A. Turner
- Virology and Gene Therapy Graduate Program, Mayo Clinic, Rochester, Minnesota, USA
| | - Christopher Y. Chen
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Karolina Cupelli
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Vijay S. Reddy
- Department of Integrative Structural and Molecular Biology, The Scripps Research Institute, La Jolla, California, USA
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - M. Kathryn Liszewski
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - John P. Atkinson
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael A. Barry
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
- Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
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12
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Sakurai F, Tachibana M, Mizuguchi H. Adenovirus vector-based vaccine for infectious diseases. Drug Metab Pharmacokinet 2022; 42:100432. [PMID: 34974335 PMCID: PMC8585960 DOI: 10.1016/j.dmpk.2021.100432] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 01/10/2023]
Abstract
Replication-incompetent adenovirus (Ad) vectors have been widely used as gene delivery vehicles in both gene therapy studies and basic studies for gene function analysis due to their highly advantageous properties, which include high transduction efficiencies, relatively large capacities for transgenes, and high titer production. In addition, Ad vectors induce moderate levels of innate immunity and have relatively high thermostability, making them very attractive as potential vaccine vectors. Accordingly, it is anticipated that Ad vectors will be used in vaccines for the prevention of infectious diseases, including Ebola virus disease and acquired immune deficiency syndrome (AIDS). Much attention is currently focused on the potential use of an Ad vector vaccine for coronavirus disease 2019 (COVID-19). In this review, we describe the basic properties of an Ad vector, Ad vector-induced innate immunity and immune responses to Ad vector-produced transgene products. Development of novel Ad vectors which can overcome the drawbacks of conventional Ad vector vaccines and clinical application of Ad vector vaccines to several infectious diseases are also discussed.
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Affiliation(s)
- Fuminori Sakurai
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.
| | - Masashi Tachibana
- Project for Vaccine and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan; Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan; Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan; Laboratory of Hepatocyte Regulation, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan.
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13
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Rojas JM, Sevilla N, Martín V. A New Look at Vaccine Strategies Against PPRV Focused on Adenoviral Candidates. Front Vet Sci 2021; 8:729879. [PMID: 34568477 PMCID: PMC8455998 DOI: 10.3389/fvets.2021.729879] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/09/2021] [Indexed: 11/28/2022] Open
Abstract
Peste des petits ruminants virus (PPRV) is a virus that mainly infects goats and sheep causing significant economic loss in Africa and Asia, but also posing a serious threat to Europe, as recent outbreaks in Georgia (2016) and Bulgaria (2018) have been reported. In order to carry out the eradication of PPRV, an objective set for 2030 by the Office International des Epizooties (OIE) and the Food and Agriculture Organization of the United Nations (FAO), close collaboration between governments, pharmaceutical companies, farmers and researchers, among others, is needed. Today, more than ever, as seen in the response to the SARS-CoV2 pandemic that we are currently experiencing, these goals are feasible. We summarize in this review the current vaccination approaches against PPRV in the field, discussing their advantages and shortfalls, as well as the development and generation of new vaccination strategies, focusing on the potential use of adenovirus as vaccine platform against PPRV and more broadly against other ruminant pathogens.
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Affiliation(s)
| | | | - Verónica Martín
- Centro de Investigación en Sanidad Animal (CISA-INIA-CSIC), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas, Madrid, Spain
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14
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Mindler K, Ostertag E, Stehle T. The polyfunctional polysialic acid: A structural view. Carbohydr Res 2021; 507:108376. [PMID: 34273862 DOI: 10.1016/j.carres.2021.108376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 12/15/2022]
Abstract
Polysialic acid (polySia), a homopolymer of α2,8-linked sialic acid residues, modifies a small number of proteins and has central functions in vertebrate signalling. Here, we review the regulatory functions of polySia in signalling processes and the immune system of adult humans, as well as functions based on their chemical properties. The main focus will be on the structure-function relationship of polySia with its interaction partners in humans. Recent studies have indicated that the degree of polymerisation is an important parameter that can guide the regulatory effect of polySia in addition to its binding to target proteins. Therefore, the structures of polySia in solution and bound to interaction partners are compared in order to identify the key factors that define binding specificity.
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Affiliation(s)
- Katja Mindler
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076, Tübingen, Germany
| | - Elena Ostertag
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076, Tübingen, Germany
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076, Tübingen, Germany.
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15
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Bates EA, Counsell JR, Alizert S, Baker AT, Suff N, Boyle A, Bradshaw AC, Waddington SN, Nicklin SA, Baker AH, Parker AL. In Vitro and In Vivo Evaluation of Human Adenovirus Type 49 as a Vector for Therapeutic Applications. Viruses 2021; 13:1483. [PMID: 34452348 PMCID: PMC8402785 DOI: 10.3390/v13081483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 01/14/2023] Open
Abstract
The human adenovirus phylogenetic tree is split across seven species (A-G). Species D adenoviruses offer potential advantages for gene therapy applications, with low rates of pre-existing immunity detected across screened populations. However, many aspects of the basic virology of species D-such as their cellular tropism, receptor usage, and in vivo biodistribution profile-remain unknown. Here, we have characterized human adenovirus type 49 (HAdV-D49)-a relatively understudied species D member. We report that HAdV-D49 does not appear to use a single pathway to gain cell entry, but appears able to interact with various surface molecules for entry. As such, HAdV-D49 can transduce a broad range of cell types in vitro, with variable engagement of blood coagulation FX. Interestingly, when comparing in vivo biodistribution to adenovirus type 5, HAdV-D49 vectors show reduced liver targeting, whilst maintaining transduction of lung and spleen. Overall, this presents HAdV-D49 as a robust viral vector platform for ex vivo manipulation of human cells, and for in vivo applications where the therapeutic goal is to target the lung or gain access to immune cells in the spleen, whilst avoiding liver interactions, such as intravascular vaccine applications.
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Affiliation(s)
- Emily A. Bates
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (E.A.B.); (A.T.B.)
| | - John R. Counsell
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK;
- NIHR Great Ormond Street Hospital Biomedical Research Centre, 30 Guilford Street, London WC1N 1EH, UK
| | - Sophie Alizert
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK; (S.A.); (A.C.B.); (S.A.N.)
| | - Alexander T. Baker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (E.A.B.); (A.T.B.)
- Center for Individualized Medicine, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Natalie Suff
- Department of Women and Children’s Health, King’s College London, St Thomas’ Hospital, Westminster Bridge Road, London SE1 7EH, UK;
| | - Ashley Boyle
- Gene Transfer Technology Group, EGA Institute for Women’s Health, University College London, 86-96 Chenies Mews, London WC1E 6BT, UK; (A.B.); (S.N.W.)
| | - Angela C. Bradshaw
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK; (S.A.); (A.C.B.); (S.A.N.)
| | - Simon N. Waddington
- Gene Transfer Technology Group, EGA Institute for Women’s Health, University College London, 86-96 Chenies Mews, London WC1E 6BT, UK; (A.B.); (S.N.W.)
- MRC Antiviral Gene Therapy Research Unit, Faculty of Health Sciences, University of the Witswatersrand, Johannesburg 2193, South Africa
| | - Stuart A. Nicklin
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK; (S.A.); (A.C.B.); (S.A.N.)
| | - Andrew H. Baker
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK; (S.A.); (A.C.B.); (S.A.N.)
- Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Alan L. Parker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (E.A.B.); (A.T.B.)
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16
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Mahsoub HM, Yuan L, Pierson FW. Turkey adenovirus 3, a siadenovirus, uses sialic acid on N-linked glycoproteins as a cellular receptor. J Gen Virol 2021; 101:760-771. [PMID: 32459612 DOI: 10.1099/jgv.0.001429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Turkey adenovirus 3 (TAdV-3) is the causative agent of an immune-mediated disease in turkeys, haemorrhagic enteritis, through targeting B lymphocytes. In the present study, we investigated the role of sialic acid in TAdV-3 entry and characterized the structural components of TAdV-3 receptor(s) on RP19, B lymphoblastoid cells. Removal of the cell-surface sialic acids by neuraminidases or blocking of sialic acids by wheat germ agglutinin lectin reduced virus infection. Pre-incubation of cells with Maackia amurensis lectin or Sambucus nigra agglutinin resulted in virus reduction, suggesting that TAdV-3 uses both α2,3-linked and α2,6-linked sialic acids as attachment receptor. Virus infectivity data from RP19 cells treated with sodium periodate, proteases (trypsin or bromelain) or metabolic inhibitors (dl-threo-1-phenyl-2-decanoylamino-3-morpholino-1-propanol, tunicamycin, or benzyl N-acetyl-α-d-galactosaminide) indicated that N-linked, but not O-linked, carbohydrates are part of the sialylated receptor and they are likely based on a membrane glycoprotein, rather than a glycolipid. Furthermore, our data, in conjunction with previous findings, implies that the secondary receptor for TAdV-3 is a protein molecule since the inhibition of glycolipid biosynthesis did not affect the virus infection, which was rather reduced by protease treatment. We can conclude that terminal sialic acids attached to N-linked membrane glycoproteins on B cells are used for virus attachment and are essential for successful virus infection.
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Affiliation(s)
- Hassan M Mahsoub
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA.,Poultry Production Department, Faculty of Agriculture, Alexandria University, El-Shatby, Alexandria 21545, Egypt
| | - Lijuan Yuan
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA
| | - F William Pierson
- Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Drive, Blacksburg, VA 24061-0442, USA
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17
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Adenovirus and the Cornea: More Than Meets the Eye. Viruses 2021; 13:v13020293. [PMID: 33668417 PMCID: PMC7917768 DOI: 10.3390/v13020293] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/07/2021] [Accepted: 02/10/2021] [Indexed: 12/16/2022] Open
Abstract
Human adenoviruses cause disease at multiple mucosal sites, including the respiratory, gastrointestinal, and genitourinary tracts, and are common agents of conjunctivitis. One site of infection that has received sparse attention is the cornea, a transparent tissue and the window of the eye. While most adenovirus infections are self-limited, corneal inflammation (keratitis) due to adenovirus can persist or recur for months to years after infection, leading to reduced vision, discomfort, and light sensitivity. Topical corticosteroids effectively suppress late adenovirus keratitis but are associated with vision-threatening side effects. In this short review, we summarize current knowledge on infection of the cornea by adenoviruses, including corneal epithelial cell receptors and determinants of corneal tropism. We briefly discuss mechanisms of stromal keratitis due to adenovirus infection, and review an emerging therapy to mitigate adenovirus corneal infections based on evolving knowledge of corneal epithelial receptor usage.
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18
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Baker AT, Davies JA, Bates EA, Moses E, Mundy RM, Marlow G, Cole DK, Bliss CM, Rizkallah PJ, Parker AL. The Fiber Knob Protein of Human Adenovirus Type 49 Mediates Highly Efficient and Promiscuous Infection of Cancer Cell Lines Using a Novel Cell Entry Mechanism. J Virol 2021; 95:e01849-20. [PMID: 33268514 PMCID: PMC7851562 DOI: 10.1128/jvi.01849-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
The human adenovirus (HAdV) phylogenetic tree is diverse, divided across seven species and comprising over 100 individual types. Species D HAdV are rarely isolated with low rates of preexisting immunity, making them appealing for therapeutic applications. Several species D vectors have been developed as vaccines against infectious diseases, where they induce robust immunity in preclinical models and early phase clinical trials. However, many aspects of the basic virology of species D HAdV, including their basic receptor usage and means of cell entry, remain understudied. Here, we investigated HAdV-D49, which previously has been studied for vaccine and vascular gene transfer applications. We generated a pseudotyped HAdV-C5 presenting the HAdV-D49 fiber knob protein (HAdV-C5/D49K). This pseudotyped vector was efficient at infecting cells devoid of all known HAdV receptors, indicating HAdV-D49 uses an unidentified cellular receptor. Conversely, a pseudotyped vector presenting the fiber knob protein of the closely related HAdV-D30 (HAdV-C5/D30K), differing in four amino acids from HAdV-D49, failed to demonstrate the same tropism. These four amino acid changes resulted in a change in isoelectric point of the knob protein, with HAdV-D49K possessing a basic apical region compared to a more acidic region in HAdV-D30K. Structurally and biologically we demonstrate that HAdV-D49 knob protein is unable to engage CD46, while potential interaction with coxsackievirus and adenovirus receptor (CAR) is extremely limited by extension of the DG loop. HAdV-C5/49K efficiently transduced cancer cell lines of pancreatic, breast, lung, esophageal, and ovarian origin, indicating it may have potential for oncolytic virotherapy applications, especially for difficult to transduce tumor types.IMPORTANCE Adenoviruses are powerful tools experimentally and clinically. To maximize efficacy, the development of serotypes with low preexisting levels of immunity in the population is desirable. Consequently, attention has focused on those derived from species D, which have proven robust vaccine platforms. This widespread usage is despite limited knowledge in their basic biology and cellular tropism. We investigated the tropism of HAdV-D49, demonstrating that it uses a novel cell entry mechanism that bypasses all known HAdV receptors. We demonstrate, biologically, that a pseudotyped HAdV-C5/D49K vector efficiently transduces a wide range of cell lines, including those presenting no known adenovirus receptor. Structural investigation suggests that this broad tropism is the result of a highly basic electrostatic surface potential, since a homologous pseudotyped vector with a more acidic surface potential, HAdV-C5/D30K, does not display a similar pantropism. Therefore, HAdV-C5/D49K may form a powerful vector for therapeutic applications capable of infecting difficult to transduce cells.
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Affiliation(s)
- Alexander T Baker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - James A Davies
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Emily A Bates
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Elise Moses
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Rosie M Mundy
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Gareth Marlow
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - David K Cole
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Carly M Bliss
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Pierre J Rizkallah
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Alan L Parker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom
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19
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Aljabali AA, Obeid MA. Inorganic-organic Nanomaterials for Therapeutics and Molecular Imaging Applications. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/2210681209666190807145229] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background::
Surface modification of nanoparticles with targeting moieties can be
achieved through bioconjugation chemistries to impart new Functionalities. Various polymeric
nanoparticles have been used for the formulation of nanoparticles such as naturally-occurring
protein cages, virus-like particles, polymeric saccharides, and liposomes. These polymers have
been proven to be biocompatible, side effects free and degradable with no toxicity.
Objectives::
This paper reviews available literature on the nanoparticles pharmaceutical and medical
applications. The review highlights and updates the customized solutions for selective drug
delivery systems that allow high-affinity binding between nanoparticles and the target receptors.
Methods::
Bibliographic databases and web-search engines were used to retrieve studies that assessed
the usability of nanoparticles in the pharmaceutical and medical fields. Data were extracted
on each system in vivo and in vitro applications, its advantages and disadvantages, and its ability to
be chemically and genetically modified to impart new functionalities. Finally, a comparison
between naturally occurring and their synthetic counterparts was carried out.
Results::
The results showed that nanoparticles-based systems could have promising applications in
diagnostics, cell labeling, contrast agents (Magnetic Resonance Imaging and Computed Tomography),
antimicrobial agents, and as drug delivery systems. However, precautions should be taken
to avoid or minimize toxic effect or incompatibility of nanoparticles-based systems with the biological
systems in case of pharmaceutical or medical applications.
Conclusion::
This review presented a summary of recent developments in the field of pharmaceutical
nanotechnology and highlighted the challenges and the merits that some of the nanoparticles-
based systems both in vivo and in vitro systems.
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Affiliation(s)
- Alaa A.A. Aljabali
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Yarmouk University, P.O. BOX 566, Irbid 21163, Jordan
| | - Mohammad A. Obeid
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Yarmouk University, P.O. BOX 566, Irbid 21163, Jordan
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20
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Cunliffe TG, Bates EA, Parker AL. Hitting the Target but Missing the Point: Recent Progress towards Adenovirus-Based Precision Virotherapies. Cancers (Basel) 2020; 12:E3327. [PMID: 33187160 PMCID: PMC7696810 DOI: 10.3390/cancers12113327] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/31/2020] [Accepted: 11/09/2020] [Indexed: 12/23/2022] Open
Abstract
More people are surviving longer with cancer. Whilst this can be partially attributed to advances in early detection of cancers, there is little doubt that the improvement in survival statistics is also due to the expansion in the spectrum of treatments available for efficacious treatment. Transformative amongst those are immunotherapies, which have proven effective agents for treating immunogenic forms of cancer, although immunologically "cold" tumour types remain refractive. Oncolytic viruses, such as those based on adenovirus, have great potential as anti-cancer agents and have seen a resurgence of interest in recent years. Amongst their many advantages is their ability to induce immunogenic cell death (ICD) of infected tumour cells, thus providing the alluring potential to synergise with immunotherapies by turning immunologically "cold" tumours "hot". Additionally, enhanced immune mediated cell killing can be promoted through the local overexpression of immunological transgenes, encoded from within the engineered viral genome. To achieve this full potential requires the development of refined, tumour selective "precision virotherapies" that are extensively engineered to prevent off-target up take via native routes of infection and targeted to infect and replicate uniquely within malignantly transformed cells. Here, we review the latest advances towards this holy grail within the adenoviral field.
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Affiliation(s)
| | | | - Alan L. Parker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (T.G.C.); (E.A.B.)
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21
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Heida R, Bhide YC, Gasbarri M, Kocabiyik Ö, Stellacci F, Huckriede ALW, Hinrichs WLJ, Frijlink HW. Advances in the development of entry inhibitors for sialic-acid-targeting viruses. Drug Discov Today 2020; 26:122-137. [PMID: 33099021 PMCID: PMC7577316 DOI: 10.1016/j.drudis.2020.10.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/13/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022]
Abstract
Over the past decades, several antiviral drugs have been developed to treat a range of infections. Yet the number of treatable viral infections is still limited, and resistance to current drug regimens is an ever-growing problem. Therefore, additional strategies are needed to provide a rapid cure for infected individuals. An interesting target for antiviral drugs is the process of viral attachment and entry into the cell. Although most viruses use distinct host receptors for attachment to the target cell, some viruses share receptors, of which sialic acids are a common example. This review aims to give an update on entry inhibitors for a range of sialic-acid-targeting viruses and provides insight into the prospects for those with broad-spectrum potential.
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Affiliation(s)
- Rick Heida
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9713AV Groningen, The Netherlands
| | - Yoshita C Bhide
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9713AV Groningen, The Netherlands; Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, 9713AV Groningen, The Netherlands
| | - Matteo Gasbarri
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Özgün Kocabiyik
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Francesco Stellacci
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland; Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Anke L W Huckriede
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, 9713AV Groningen, The Netherlands
| | - Wouter L J Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9713AV Groningen, The Netherlands.
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9713AV Groningen, The Netherlands
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22
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Johansson E, Caraballo R, Mistry N, Zocher G, Qian W, Andersson CD, Hurdiss DL, Chandra N, Thompson R, Frängsmyr L, Stehle T, Arnberg N, Elofsson M. Pentavalent Sialic Acid Conjugates Block Coxsackievirus A24 Variant and Human Adenovirus Type 37-Viruses That Cause Highly Contagious Eye Infections. ACS Chem Biol 2020; 15:2683-2691. [PMID: 32845119 PMCID: PMC7586296 DOI: 10.1021/acschembio.0c00446] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
![]()
Coxsackievirus A24
variant (CVA24v) and human adenovirus 37 (HAdV-37)
are leading causative agents of the severe and highly contagious ocular
infections acute hemorrhagic conjunctivitis and epidemic keratoconjunctivitis,
respectively. Currently, neither vaccines nor antiviral agents are
available for treating these diseases, which affect millions of individuals
worldwide. CVA24v and HAdV-37 utilize sialic acid as attachment receptors
facilitating entry into host cells. Previously, we and others have
shown that derivatives based on sialic acid are effective in preventing
HAdV-37 binding and infection of cells. Here, we designed and synthesized
novel pentavalent sialic acid conjugates and studied their inhibitory
effect against CVA24v and HAdV-37 binding and infection of human corneal
epithelial cells. The pentavalent conjugates are the first reported
inhibitors of CVA24v infection and proved efficient in blocking HAdV-37
binding. Taken together, the pentavalent conjugates presented here
form a basis for the development of general inhibitors of these highly
contagious ocular pathogens.
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Affiliation(s)
- Emil Johansson
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Rémi Caraballo
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Nitesh Mistry
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE90185 Umeå, Sweden
| | - Georg Zocher
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Weixing Qian
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | | | - Daniel L. Hurdiss
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584CL Utrecht, The Netherlands
| | - Naresh Chandra
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE90185 Umeå, Sweden
| | - Rebecca Thompson
- Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Lars Frängsmyr
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE90185 Umeå, Sweden
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany
- Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Niklas Arnberg
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE90185 Umeå, Sweden
| | - Mikael Elofsson
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
- Umeå Centre for Microbial Research, Umeå University, SE90187 Umeå, Sweden
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23
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High-Throughput Cloning and Characterization of Emerging Adenovirus Types 70, 73, 74, and 75. Int J Mol Sci 2020; 21:ijms21176370. [PMID: 32887347 PMCID: PMC7504450 DOI: 10.3390/ijms21176370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 01/01/2023] Open
Abstract
Recently an increasing number of new adenovirus types associated with type-dependent pathogenicity have been identified. However, identification of these clinical isolates represents the very first step to characterize novel pathogens. For deeper analyses, these adenoviruses need to be further characterized in basic virology experiments or they could be applied in translational research. To achieve this goal, it is essential to get genetic access and to enable genetic modification of these novel adenovirus genomes (deletion, insertion, and mutation). Here we demonstrate a high-throughput approach to get genetic access to new adenoviruses via homologous recombination. We first defined the cloning conditions regarding homology arm-length and input adenoviral genome amounts. Then we cloned four naturally occurring adenoviruses (Ad70, Ad73, Ad74, and Ad75) into easy-to-manipulate plasmids and genetically modified them by reporter gene insertion. Three recombinant adenoviruses (Ad70, Ad73, and Ad74) containing a reporter cassette were successfully reconstituted. These novel reporter-labeled adenoviruses were further characterized using the inserted luciferase reporter with respect to receptor usage, presence of anti-adenovirus antibodies, and tropism in vitro. The identified receptor usage, the relatively low prevalence of anti-adenovirus antibodies, and the various cancer cell line transduction pattern are important features of these new pathogens providing essential information for their therapeutic application.
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24
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Gao J, Zhang W, Mese K, Bunz O, Lu F, Ehrhardt A. Transient Chimeric Ad5/37 Fiber Enhances NK-92 Carrier Cell-Mediated Delivery of Oncolytic Adenovirus Type 5 to Tumor Cells. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 18:376-389. [PMID: 32695840 PMCID: PMC7358217 DOI: 10.1016/j.omtm.2020.06.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/28/2020] [Indexed: 01/09/2023]
Abstract
Methods for customizing and improving virus vector tropism are limited. In this study, we introduce a microRNA (miRNA)-regulated molecular method to enhance vector transduction without genome alteration. Based on the importance of adenovirus (Ad) vectors for cancer and gene treatment, we exemplified this technology for an Ad type 5 (Ad5) vector temporally carrying a knob from Ad37. We constructed a producer cell line stably expressing a fused Ad5/37 chimeric fiber comprising the Ad5 shaft-tail and the Ad37 knob and a miRNA inhibiting Ad5 knob expression (HEK293-Ad5/37-miRNA). The chimeric Ad5/37 vector resulted in enhanced transduction rates in Ad37 adequately and Ad5 poorly transduced cells. Particularly, encapsidation of the oncolytic Ad5-human telomerase reverse transcriptase (hTERT) vector genome into the chimeric Ad5/37 capsid showed efficient transduction of NK-92 carrier cells. These infected carrier cells then delivered the oncolytic vector to tumor cells, which resulted in enhanced Ad5-hTERT-mediated tumor cell killing. We show that this transiently capsid-modified chimeric vector carrying an Ad5 genome displayed higher transduction efficiencies of natural killer cell-derived NK-92 cells utilized as carriers in cancer immune therapy. In summary, transiently modified adenoviral vectors will have important implications for cancer and gene therapy.
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Affiliation(s)
- Jian Gao
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Wenli Zhang
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Kemal Mese
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Oskar Bunz
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Fengmin Lu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Microbiology & Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Anja Ehrhardt
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
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25
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Barry MA, Rubin JD, Lu SC. Retargeting adenoviruses for therapeutic applications and vaccines. FEBS Lett 2020; 594:1918-1946. [PMID: 31944286 PMCID: PMC7311308 DOI: 10.1002/1873-3468.13731] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 12/29/2022]
Abstract
Adenoviruses (Ads) are robust vectors for therapeutic applications and vaccines, but their use can be limited by differences in their in vitro and in vivo pharmacologies. This review emphasizes that there is not just one Ad, but a whole virome of diverse viruses that can be used as therapeutics. It discusses that true vector targeting involves not only retargeting viruses, but importantly also detargeting the viruses from off-target cells.
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Affiliation(s)
- Michael A Barry
- Department of Medicine, Division of Infectious Diseases, Department of Immunology, Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jeffrey D Rubin
- Virology and Gene Therapy Graduate Program, Mayo Graduate School, Mayo Clinic, Rochester, MN, USA
| | - Shao-Chia Lu
- Virology and Gene Therapy Graduate Program, Mayo Graduate School, Mayo Clinic, Rochester, MN, USA
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26
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Adenoviral Vectors Meet Gene Editing: A Rising Partnership for the Genomic Engineering of Human Stem Cells and Their Progeny. Cells 2020; 9:cells9040953. [PMID: 32295080 PMCID: PMC7226970 DOI: 10.3390/cells9040953] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022] Open
Abstract
Gene editing permits changing specific DNA sequences within the vast genomes of human cells. Stem cells are particularly attractive targets for gene editing interventions as their self-renewal and differentiation capabilities consent studying cellular differentiation processes, screening small-molecule drugs, modeling human disorders, and testing regenerative medicines. To integrate gene editing and stem cell technologies, there is a critical need for achieving efficient delivery of the necessary molecular tools in the form of programmable DNA-targeting enzymes and/or exogenous nucleic acid templates. Moreover, the impact that the delivery agents themselves have on the performance and precision of gene editing procedures is yet another critical parameter to consider. Viral vectors consisting of recombinant replication-defective viruses are under intense investigation for bringing about efficient gene-editing tool delivery and precise gene-editing in human cells. In this review, we focus on the growing role that adenoviral vectors are playing in the targeted genetic manipulation of human stem cells, progenitor cells, and their differentiated progenies in the context of in vitro and ex vivo protocols. As preamble, we provide an overview on the main gene editing principles and adenoviral vector platforms and end by discussing the possibilities ahead resulting from leveraging adenoviral vector, gene editing, and stem cell technologies.
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27
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Mese K, Bunz O, Schellhorn S, Volkwein W, Jung D, Gao J, Zhang W, Baiker A, Ehrhardt A. Identification of novel human adenovirus candidates using the coxsackievirus and adenovirus receptor for cell entry. Virol J 2020; 17:52. [PMID: 32272960 PMCID: PMC7146880 DOI: 10.1186/s12985-020-01318-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 03/19/2020] [Indexed: 12/12/2022] Open
Abstract
Background There are over 100 known human adenovirus (HAdV) types, which are able to cause a broad variety of different self-limiting but also lethal diseases especially in immunocompromised patients. Only limited information about the pathogenesis and biology of the majority of these virus types is available. In the present study, we performed a systematic screen for coxsackievirus and adenovirus receptor (CAR)-usage of a large spectrum of HAdV types. Methods To study receptor usage we utilized a recombinant HAdV library containing HAdV genomes tagged with a luciferase and GFP encoding transgene. We infected CHO-CAR cells stably expressing the CAR receptor and to much information with tagged viruses (HAdV3, 14, 16, 50, 10, 24, 27, 37 and 69) and measured luciferase expression levels 26 and for some viruses (AdV10, − 24 and − 27) 52 h post-infection. As positive control, we applied human adenovirus type 5 (HAdV5) known to use the CAR receptor for cell entry. For viruses replication studies on genome level we applied digital PCR. Results Infection of CHO-CAR and CHO-K1 cells at various virus particle numbers per cell (vpc) revealed that HAdV10, 24, and 27 showed similar or decreased luciferase expression levels in the presence of CAR. In contrast, HAdV3, 14, 16, 50, 37 and 69 resulted in increased luciferase expression levels in our initial screening experiments. CAR usage of HAdV3, 14, 50, and 69 was not studied before, and therefore we experimentally confirmed CAR usage for these HAdV as novel viruses utilizing CAR as a receptor. To rule out that replication of HAdV in transduced CHO cells is responsible for increased transduction rates we performed replication assays on virus genome level, which revealed that there is no HAdV replication. Conclusion In the present study, we screened a HAdV library and identified novel human HAdV using the CAR receptor. To our knowledge, this is the first description of CAR usage for HAdV 3, 14, 50, and 69.
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Affiliation(s)
- Kemal Mese
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Oskar Bunz
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Sebastian Schellhorn
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Wolfram Volkwein
- Bavarian Health and Food Safety Authority (LGL), Oberschleissheim, Germany
| | - Dominik Jung
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Jian Gao
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Wenli Zhang
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany
| | - Armin Baiker
- Bavarian Health and Food Safety Authority (LGL), Oberschleissheim, Germany
| | - Anja Ehrhardt
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Str. 10, 58453, Witten, Germany.
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28
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Abstract
Viruses are obligatory parasites that take advantage of intracellular niches to replicate. During infection, their genomes are carried in capsids across the membranes of host cells to sites of virion production by exploiting cellular behaviour and resources to guide and achieve all aspects of delivery and the downstream virus manufacturing process. Successful entry hinges on execution of a precisely tuned viral uncoating program where incoming capsids disassemble in consecutive steps to ensure that genomes are released at the right time, and in the right place for replication to occur. Each step of disassembly is cell-assisted, involving individual pathways that transmit signals to regulate discrete functions, but at the same time, these signalling pathways are organized into larger networks, which communicate back and forth in complex ways in response to the presence of virus. In this review, we consider the elegant strategy by which adenoviruses (AdVs) target and navigate cellular networks to initiate the production of progeny virions. There are many remarkable aspects about the AdV entry program; for example, the virus gains targeted control of a large well-defined local network neighbourhood by coupling several interacting processes (including endocytosis, autophagy and microtubule trafficking) around a collective reference state centred on the interactional topology and multifunctional nature of protein VI. Understanding the network targeting activity of protein VI, as well as other built-in mechanisms that allow AdV particles to be efficient at navigating the subsystems of the cell, can be used to improve viral vectors, but also has potential to be incorporated for use in entirely novel delivery systems.
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Affiliation(s)
- Justin W Flatt
- Faculty of Biological and Environmental Sciences and HiLIFE-Institute of Biotechnology, University of Helsinki , 00790 Helsinki , Finland
| | - Sarah J Butcher
- Faculty of Biological and Environmental Sciences and HiLIFE-Institute of Biotechnology, University of Helsinki , 00790 Helsinki , Finland
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29
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Kim CH. Viral Protein Interaction with Host Cells GSLs. GLYCOSPHINGOLIPIDS SIGNALING 2020:53-92. [DOI: 10.1007/978-981-15-5807-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
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30
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Mystery eye: Human adenovirus and the enigma of epidemic keratoconjunctivitis. Prog Retin Eye Res 2019; 76:100826. [PMID: 31891773 DOI: 10.1016/j.preteyeres.2019.100826] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/20/2019] [Accepted: 12/26/2019] [Indexed: 12/20/2022]
Abstract
Known to occur in widespread outbreaks, epidemic keratoconjunctivitis (EKC) is a severe ocular surface infection with a strong historical association with human adenovirus (HAdV). While the conjunctival manifestations can vary from mild follicular conjunctivitis to hyper-acute, exudative conjunctivitis with formation of conjunctival membranes, EKC is distinct as the only form of adenovirus conjunctivitis in which the cornea is also involved, likely due to the specific corneal epithelial tropism of its causative viral agents. The initial development of a punctate or geographic epithelial keratitis may herald the later formation of stromal keratitis, and manifest as subepithelial infiltrates which often persist or recur for months to years after the acute infection has resolved. The chronic keratitis in EKC is associated with foreign body sensation, photophobia, glare, and reduced vision. However, over a century since the first clinical descriptions of EKC, and over 60 years since the first causative agent, human adenovirus type 8, was identified, our understanding of this disorder remains limited. This is underscored by a current lack of effective diagnostic tools and treatments. In part, stasis in our knowledge base has been encouraged by the continued acceptance, and indeed propagation of, inaccurate paradigms pertaining to disease etiology and pathogenesis, particularly with regard to mechanisms of innate and adaptive immunity within the cornea. Owing to its often persistent and medically refractory visual sequelae, reconsideration of key aspects of EKC disease biology is warranted to identify new treatment targets to curb its worldwide socioeconomic burden.
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31
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Nemerow G, Flint J. Lessons learned from adenovirus (1970-2019). FEBS Lett 2019; 593:3395-3418. [PMID: 31777951 DOI: 10.1002/1873-3468.13700] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/24/2019] [Accepted: 11/24/2019] [Indexed: 12/11/2022]
Abstract
Animal viruses are well recognized for their ability to uncover fundamental cell and molecular processes, and adenovirus certainly provides a prime example. This review illustrates the lessons learned from studying adenovirus over the past five decades. We take a look back at the key studies of adenovirus structure and biophysical properties, which revealed the mechanisms of adenovirus association with antibody, cell receptor, and immune molecules that regulate infection. In addition, we discuss the critical contribution of studies of adenovirus gene expression to elucidation of fundamental reactions in pre-mRNA processing and its regulation. Other pioneering studies furnished the first examples of protein-primed initiation of DNA synthesis and viral small RNAs. As a nonenveloped virus, adenoviruses have furnished insights into the modes of virus attachment, entry, and penetration of host cells, and we discuss the diversity of cell receptors that support these processes, as well as membrane penetration. As a result of these extensive studies, adenovirus vectors were among the first to be developed for therapeutic applications. We highlight some of the early (unsuccessful) trials and the lessons learned from them.
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Affiliation(s)
- Glen Nemerow
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, USA
| | - Jane Flint
- Department of Molecular Biology, Princeton University, NJ, USA
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32
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Pied N, Wodrich H. Imaging the adenovirus infection cycle. FEBS Lett 2019; 593:3419-3448. [PMID: 31758703 DOI: 10.1002/1873-3468.13690] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 12/11/2022]
Abstract
Incoming adenoviruses seize control of cytosolic transport mechanisms to relocate their genome from the cell periphery to specialized sites in the nucleoplasm. The nucleus is the site for viral gene expression, genome replication, and the production of progeny for the next round of infection. By taking control of the cell, adenoviruses also suppress cell-autonomous immunity responses. To succeed in their production cycle, adenoviruses rely on well-coordinated steps, facilitated by interactions between viral proteins and cellular factors. Interactions between virus and host can impose remarkable morphological changes in the infected cell. Imaging adenoviruses has tremendously influenced how we delineate individual steps in the viral life cycle, because it allowed the development of specific optical markers to label these morphological changes in space and time. As technology advances, innovative imaging techniques and novel tools for specimen labeling keep uncovering previously unseen facets of adenovirus biology emphasizing why imaging adenoviruses is as attractive today as it was in the past. This review will summarize past achievements and present developments in adenovirus imaging centered on fluorescence microscopy approaches.
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Affiliation(s)
- Noémie Pied
- CNRS UMR 5234, Microbiologie Fondamentale et Pathogénicité, Université de Bordeaux, France
| | - Harald Wodrich
- CNRS UMR 5234, Microbiologie Fondamentale et Pathogénicité, Université de Bordeaux, France
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33
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Rustmeier NH, Strebl M, Stehle T. The Symmetry of Viral Sialic Acid Binding Sites-Implications for Antiviral Strategies. Viruses 2019; 11:v11100947. [PMID: 31615155 PMCID: PMC6832341 DOI: 10.3390/v11100947] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/02/2019] [Accepted: 10/09/2019] [Indexed: 12/12/2022] Open
Abstract
Virus infections are initiated by the attachment of the viral particle to protein or carbohydrate receptors on the host cell. Sialic acid-bearing glycan structures are prominently displayed at the cell surface, and, consequently, these structures can function as receptors for a large number of diverse viruses. Structural biology research has helped to establish the molecular bases for many virus–sialic acid interactions. Due to the icosahedral 532 point group symmetry that underlies many viral capsids, the receptor binding sites are frequently arranged in a highly symmetric fashion and linked by five-fold, three-fold, or two-fold rotation axes. For the inhibition of viral attachment, one emerging strategy is based on developing multivalent sialic acid-based inhibitors that can simultaneously engage several of these binding sites, thus binding viral capsids with high avidity. In this review, we will evaluate the structures of non-enveloped virus capsid proteins bound to sialylated glycan receptors and discuss the potential of these structures for the development of potent antiviral attachment inhibitors.
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Affiliation(s)
- Nils H Rustmeier
- Interfaculty Institute of Biochemistry, University of Tuebingen, 72076 Tuebingen, Baden-Wuerttemberg, Germany.
| | - Michael Strebl
- Interfaculty Institute of Biochemistry, University of Tuebingen, 72076 Tuebingen, Baden-Wuerttemberg, Germany.
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tuebingen, 72076 Tuebingen, Baden-Wuerttemberg, Germany.
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
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34
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Baker AT, Mundy RM, Davies JA, Rizkallah PJ, Parker AL. Human adenovirus type 26 uses sialic acid-bearing glycans as a primary cell entry receptor. SCIENCE ADVANCES 2019; 5:eaax3567. [PMID: 31517055 PMCID: PMC6726447 DOI: 10.1126/sciadv.aax3567] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 07/29/2019] [Indexed: 05/02/2023]
Abstract
Adenoviruses are clinically important agents. They cause respiratory distress, gastroenteritis, and epidemic keratoconjunctivitis. As non-enveloped, double-stranded DNA viruses, they are easily manipulated, making them popular vectors for therapeutic applications, including vaccines. Species D adenovirus type 26 (HAdV-D26) is both a cause of EKC and other diseases and a promising vaccine vector. HAdV-D26-derived vaccines are under investigation as protective platforms against HIV, Zika, and respiratory syncytial virus infections and are in phase 3 clinical trials for Ebola. We recently demonstrated that HAdV-D26 does not use CD46 or Desmoglein-2 as entry receptors, while the putative interaction with coxsackie and adenovirus receptor is low affinity and unlikely to represent the primary cell receptor. Here, we establish sialic acid as a primary entry receptor used by HAdV-D26. We demonstrate that removal of cell surface sialic acid inhibits HAdV-D26 infection, and provide a high-resolution crystal structure of HAdV-D26 fiber-knob in complex with sialic acid.
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Affiliation(s)
- Alexander T. Baker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK
| | - Rosie M. Mundy
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK
| | - James A. Davies
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK
| | - Pierre J. Rizkallah
- Division of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK
| | - Alan L. Parker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK
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35
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Song Y, Wei Q, Liu Y, Feng H, Chen Y, Wang Y, Bai Y, Xing G, Deng R, Zhang G. Unravelling the receptor binding property of egg drop syndrome virus (EDSV) from the crystal structure of EDSV fiber head. Int J Biol Macromol 2019; 139:587-595. [PMID: 31381914 DOI: 10.1016/j.ijbiomac.2019.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 12/24/2022]
Abstract
Egg drop syndrome virus (EDSV) is an avian adenovirus that causes markedly decrease in egg production, and in the quality of the eggs when it infects chickens. Until now, EDSV virus-cell interactions are poorly understood, and the cellular receptor is still unknown. In the present study, we determined the atomic structure of the fiber head of EDSV (residues 377-644) at 2.74 Å resolution. Structure comparison with the (chick embryo lethal orphan) CELO long fiber head and human adenovirus fiber heads reveals that the avian adenovirus may interact with the same attachment factor in a unique fashion. Based on the previous studies of CELO virus, we assumed that the chicken coxsackievirus and adenovirus receptor (CAR) may be the attachment factor. We then demonstrate that the chicken CAR serves as a cellular attachment factor for EDSV based on three lines of evidences. Taken together, the results presented here are helpful for further exploring the pathogenesis related to the interaction between EDSV and host cells, and may be used for vaccine development and intervention strategies against EDSV infection.
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Affiliation(s)
- Yapeng Song
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Qiang Wei
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Yunchao Liu
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Hua Feng
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yanwei Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yilin Bai
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Guangxu Xing
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Ruiguang Deng
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Gaiping Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu Province 225009, China.
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36
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Rodrigues R, Danskog K, Överby AK, Arnberg N. Characterizing the cellular attachment receptor for Langat virus. PLoS One 2019; 14:e0217359. [PMID: 31163044 PMCID: PMC6548386 DOI: 10.1371/journal.pone.0217359] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/23/2019] [Indexed: 12/31/2022] Open
Abstract
Tick-borne encephalitis infections have increased the last 30 years. The mortality associated to this viral infection is 0.5 to 30% with a risk of permanent neurological sequelae, however, no therapeutic is currently available. The first steps of virus-cell interaction, such as attachment and entry, are of importance to understand pathogenesis and tropism. Several molecules have been shown to interact with tick-borne encephalitis virus (TBEV) at the plasma membrane surface, yet, no studies have proven that these are specific entry receptors. In this study, we set out to characterize the cellular attachment receptor(s) for TBEV using the naturally attenuated member of the TBEV complex, Langat virus (LGTV), as a model. Inhibiting or cleaving different molecules from the surface of A549 cells, combined with inhibition assays using peptide extracts from high LGTV binding cells, revealed that LGTV attachment to host cells is dependent on plasma membrane proteins, but not on glycans or glycolipids, and suggested that LGTV might use different cellular attachment factors on different cell types. Based on this, we developed a transcriptomic approach to generate a list of candidate attachment and entry receptors. Our findings shed light on the first step of the flavivirus life-cycle and provide candidate receptors that might serve as a starting point for future functional studies to identify the specific attachment and/or entry receptor for LGTV and TBEV.
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Affiliation(s)
- Raquel Rodrigues
- Virology, Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Katarina Danskog
- Virology, Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Anna K. Överby
- Virology, Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Niklas Arnberg
- Virology, Department of Clinical Microbiology, Umeå University, Umeå, Sweden
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37
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Decoy Receptor Interactions as Novel Drug Targets against EKC-Causing Human Adenovirus. Viruses 2019; 11:v11030242. [PMID: 30870979 PMCID: PMC6466251 DOI: 10.3390/v11030242] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 01/30/2023] Open
Abstract
Epidemic keratoconjunctivitis (EKC) is a severe ocular disease and can lead to visual impairment. Human adenovirus type-37 (HAdV-D37) is one of the major causative agents of EKC and uses sialic acid (SA)-containing glycans as cellular receptors. Currently, there are no approved antivirals available for the treatment of EKC. Recently, we have reported that sulfated glycosaminoglycans (GAGs) bind to HAdV-D37 via the fiber knob (FK) domain of the viral fiber protein and function as decoy receptors. Based on this finding, we speculated that GAG-mimetics may act as artificial decoy receptors and inhibit HAdV-D37 infection. Repurposing of approved drugs to identify new antivirals has drawn great attention in recent years. Here, we report the antiviral effect of suramin, a WHO-approved drug and a widely known GAG-mimetic, against HAdV-D37. Commercially available suramin analogs also show antiviral effects against HAdV-D37. We demonstrate that suramin exerts its antiviral activity by inhibiting the attachment of HAdV-D37 to cells. We also reveal that the antiviral effect of suramin is HAdV species-specific. Collectively, in this proof of concept study, we demonstrate for the first time that virus binding to a decoy receptor constitutes a novel and an unexplored target for antiviral drug development.
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38
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Chandra N, Liu Y, Liu JX, Frängsmyr L, Wu N, Silva LM, Lindström M, Chai W, Pedrosa Domellöf F, Feizi T, Arnberg N. Sulfated Glycosaminoglycans as Viral Decoy Receptors for Human Adenovirus Type 37. Viruses 2019; 11:E247. [PMID: 30871026 PMCID: PMC6466042 DOI: 10.3390/v11030247] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/07/2019] [Accepted: 03/09/2019] [Indexed: 12/13/2022] Open
Abstract
Glycans on plasma membranes and in secretions play important roles in infection by many viruses. Species D human adenovirus type 37 (HAdV-D37) is a major cause of epidemic keratoconjunctivitis (EKC) and infects target cells by interacting with sialic acid (SA)-containing glycans via the fiber knob domain of the viral fiber protein. HAdV-D37 also interacts with sulfated glycosaminoglycans (GAGs), but the outcome of this interaction remains unknown. Here, we investigated the molecular requirements of HAdV-D37 fiber knob:GAG interactions using a GAG microarray and demonstrated that fiber knob interacts with a broad range of sulfated GAGs. These interactions were corroborated in cell-based assays and by surface plasmon resonance analysis. Removal of heparan sulfate (HS) and sulfate groups from human corneal epithelial (HCE) cells by heparinase III and sodium chlorate treatments, respectively, reduced HAdV-D37 binding to cells. Remarkably, removal of HS by heparinase III enhanced the virus infection. Our results suggest that interaction of HAdV-D37 with sulfated GAGs in secretions and on plasma membranes prevents/delays the virus binding to SA-containing receptors and inhibits subsequent infection. We also found abundant HS in the basement membrane of the human corneal epithelium, which may act as a barrier to sub-epithelial infection. Collectively, our findings provide novel insights into the role of GAGs as viral decoy receptors and highlight the therapeutic potential of GAGs and/or GAG-mimetics in HAdV-D37 infection.
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Affiliation(s)
- Naresh Chandra
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE-90185 Umeå, Sweden.
| | - Yan Liu
- Glycosciences Laboratory, Faculty of Medicine, Imperial College of London, Hammersmith Campus, London W12 0NN, UK.
| | - Jing-Xia Liu
- Department of Integrative Medical Biology, Umeå University, SE-90185 Umeå, Sweden.
- Department of Clinical Science, Ophthalmology, Umeå University, SE-90185 Umeå, Sweden.
| | - Lars Frängsmyr
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE-90185 Umeå, Sweden.
| | - Nian Wu
- Glycosciences Laboratory, Faculty of Medicine, Imperial College of London, Hammersmith Campus, London W12 0NN, UK.
| | - Lisete M Silva
- Glycosciences Laboratory, Faculty of Medicine, Imperial College of London, Hammersmith Campus, London W12 0NN, UK.
| | - Mona Lindström
- Department of Integrative Medical Biology, Umeå University, SE-90185 Umeå, Sweden.
- Department of Clinical Science, Ophthalmology, Umeå University, SE-90185 Umeå, Sweden.
| | - Wengang Chai
- Glycosciences Laboratory, Faculty of Medicine, Imperial College of London, Hammersmith Campus, London W12 0NN, UK.
| | - Fatima Pedrosa Domellöf
- Department of Integrative Medical Biology, Umeå University, SE-90185 Umeå, Sweden.
- Department of Clinical Science, Ophthalmology, Umeå University, SE-90185 Umeå, Sweden.
| | - Ten Feizi
- Glycosciences Laboratory, Faculty of Medicine, Imperial College of London, Hammersmith Campus, London W12 0NN, UK.
| | - Niklas Arnberg
- Section of Virology, Department of Clinical Microbiology, Umeå University, SE-90185 Umeå, Sweden.
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39
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Baker AT, Greenshields-Watson A, Coughlan L, Davies JA, Uusi-Kerttula H, Cole DK, Rizkallah PJ, Parker AL. Diversity within the adenovirus fiber knob hypervariable loops influences primary receptor interactions. Nat Commun 2019; 10:741. [PMID: 30765704 PMCID: PMC6376029 DOI: 10.1038/s41467-019-08599-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 01/21/2019] [Indexed: 01/14/2023] Open
Abstract
Adenovirus based vectors are of increasing importance for wide ranging therapeutic applications. As vaccines, vectors derived from human adenovirus species D serotypes 26 and 48 (HAdV-D26/48) are demonstrating promising efficacy as protective platforms against infectious diseases. Significant clinical progress has been made, yet definitive studies underpinning mechanisms of entry, infection, and receptor usage are currently lacking. Here, we perform structural and biological analysis of the receptor binding fiber-knob protein of HAdV-D26/48, reporting crystal structures, and modelling putative interactions with two previously suggested attachment receptors, CD46 and Coxsackie and Adenovirus Receptor (CAR). We provide evidence of a low affinity interaction with CAR, with modelling suggesting affinity is attenuated through extended, semi-flexible loop structures, providing steric hindrance. Conversely, in silico and in vitro experiments are unable to provide evidence of interaction between HAdV-D26/48 fiber-knob with CD46, or with Desmoglein 2. Our findings provide insight into the cell-virus interactions of HAdV-D26/48, with important implications for the design and engineering of optimised Ad-based therapeutics.
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Affiliation(s)
- Alexander T Baker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | | | - Lynda Coughlan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029-6574, USA
| | - James A Davies
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Hanni Uusi-Kerttula
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - David K Cole
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.,Immunocore Ltd., Abingdon, OX14 4RY, Oxon, UK
| | - Pierre J Rizkallah
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Alan L Parker
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
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40
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Thompson AJ, de Vries RP, Paulson JC. Virus recognition of glycan receptors. Curr Opin Virol 2019; 34:117-129. [PMID: 30849709 PMCID: PMC6476673 DOI: 10.1016/j.coviro.2019.01.004] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/24/2019] [Indexed: 01/17/2023]
Abstract
Attachment of viruses to cell-surface receptors is the initial step in infection. Many mammalian viruses have evolved to recognize receptors that are glycans on cell-surface glycoproteins or glycolipids. Although glycans are a ubiquitous component of mammalian cells, the types of terminal structures expressed vary among different cell-types and tissues, and even between comparable cells and tissues from different species, frequently leading to specific tissue and species tropisms as a direct consequence of glycan receptor recognition. Covering the majority of known virus families, this review provides an overview of mammalian viruses that use glycans as receptors, and their roles in determining in host recognition and tropism.
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Affiliation(s)
- Andrew J Thompson
- Departments of Molecular Medicine, Immunology & Microbiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Robert P de Vries
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - James C Paulson
- Departments of Molecular Medicine, Immunology & Microbiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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41
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Gonzalez G, Yawata N, Aoki K, Kitaichi N. Challenges in management of epidemic keratoconjunctivitis with emerging recombinant human adenoviruses. J Clin Virol 2019; 112:1-9. [PMID: 30654207 DOI: 10.1016/j.jcv.2019.01.004] [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: 06/25/2018] [Revised: 11/21/2018] [Accepted: 01/08/2019] [Indexed: 01/14/2023]
Abstract
Adenoviral epidemic keratoconjunctivitis (EKC) presents as severe conjunctival inflammations involving the cornea that can lead to the development of corneal opacities and blurred vision, which can persist for months. EKC is highly contagious and responsible for outbreaks worldwide, therefore accurate diagnosis and rapid containment are imperative. EKC is caused by a number of types within Human adenovirus species D (HAdV-D): 8, 37 and 64 (formerly known as 19a) and these types were considered the major causes of EKC for over fifty years. Nonetheless, recent improved molecular typing methodologies have identified recombinant HAdV-D types 53, 54 and 56, as newly emerging etiologic agents of EKC infections worldwide. EKC cases due to these recombinant types have potentially been underdiagnosed and underestimated as a source of new EKC outbreaks. Recombination events among circulating HAdV-D types represent a source of new infectious disease threats. Also, the growing number of adenoviral types enabled genomic and phenotypic comparisons to determine pathological properties related to EKC. This review covers the clinical features of EKC, current challenges in clinical practice and recent progress in EKC-related HAdV research, which focuses on the development of novel diagnostic and therapeutic approaches.
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Affiliation(s)
- Gabriel Gonzalez
- Division of Bioinformatics, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Nobuyo Yawata
- Department of Medicine, Ophthalmology, Fukuoka Dental College, Fukuoka, Japan; Singapore Eye Research Institute, Singapore; Department of Ophthalmology, Kyushu University, Japan; Duke-NUS Medical School, Singapore
| | - Koki Aoki
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Nobuyoshi Kitaichi
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan.
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42
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Abstract
Sialic acid-based glycoconjugates cover the surfaces of many different cell types, defining key properties of the cell surface such as overall charge or likely interaction partners. Because of this prominence, sialic acids play prominent roles in mediating attachment and entry to viruses belonging to many different families. In this review, we first describe how interactions between viruses and sialic acid-based glycan structures can be identified and characterized using a range of techniques. We then highlight interactions between sialic acids and virus capsid proteins in four different viruses, and discuss what these interactions have taught us about sialic acid engagement and opportunities to interfere with binding.
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Affiliation(s)
- Bärbel S Blaum
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany; Vanderbilt University School of Medicine, Nashville, TN, United States
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43
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Liu J, Boehme P, Zhang W, Fu J, Yumul R, Mese K, Tsoukas R, Solanki M, Kaufmann M, Lu R, Schmidtko A, Stewart AF, Lieber A, Ehrhardt A. Human adenovirus type 17 from species D transduces endothelial cells and human CD46 is involved in cell entry. Sci Rep 2018; 8:13442. [PMID: 30194327 PMCID: PMC6128842 DOI: 10.1038/s41598-018-31713-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 08/03/2018] [Indexed: 11/09/2022] Open
Abstract
More than 70 human adenoviruses with type-dependent pathogenicity have been identified but biological information about the majority of these virus types is scarce. Here we employed multiple sequence alignments and structural information to predict receptor usage for the development of an adenoviral vector with novel biological features. We report the generation of a cloned adenovirus based on human adenovirus type 17 (HAdV17) with high sequence homology to the well characterized human adenovirus type 37 (HAdV37) that causes epidemic keratoconjunctivitis (EKC). Our study revealed that human CD46 (CD46) is involved in cell entry of HAdV17. Moreover, we found that HAdV17 infects endothelial cells (EC) in vitro including primary cells at higher efficiencies compared to the commonly used human adenovirus type 5 (HAdV5). Using a human CD46 transgenic mouse model, we observed that HAdV17 displays a broad tropism in vivo after systemic injection and that it transduces ECs in this mouse model. We conclude that the HAdV17-based vector may provide a novel platform for gene therapy.
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Affiliation(s)
- Jing Liu
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.,Department of Oncology and cancer immunotherapy, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Philip Boehme
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.,Medical Student, Department of Human Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Wenli Zhang
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - Jun Fu
- Shandong University-Helmholtz Institute of Biotechnoloy, State Key Laboratory of Microbial Technology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China.,Genomics, Biotechnology Center, Technische Universität Dresden, BioInnovations Zentrum, Dresden, Germany
| | - Roma Yumul
- Division for Medical Biochemistry, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - Kemal Mese
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - Raphael Tsoukas
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - Manish Solanki
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.,Institute for Experimental Gene Therapy and Cancer Research (IEGT), Medical University Rostock, Rostock, Germany
| | - Michael Kaufmann
- University of Washington, Department of Medicine, Division of Medical Genetics, Seattle, USA
| | - Ruirui Lu
- Institute for Pharmakology and Toxicology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.,Institute of Pharmacology, College of Pharmacy, Goethe University, Frankfurt am Main, Germany
| | - Achim Schmidtko
- Institute for Pharmakology and Toxicology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.,Institute of Pharmacology, College of Pharmacy, Goethe University, Frankfurt am Main, Germany
| | - A Francis Stewart
- Genomics, Biotechnology Center, Technische Universität Dresden, BioInnovations Zentrum, Dresden, Germany
| | - André Lieber
- Division for Medical Biochemistry, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - Anja Ehrhardt
- Institute for Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.
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44
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Hagedorn C, Kreppel F. Capsid Engineering of Adenovirus Vectors: Overcoming Early Vector-Host Interactions for Therapy. Hum Gene Ther 2018; 28:820-832. [PMID: 28854810 DOI: 10.1089/hum.2017.139] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Adenovirus-based vectors comprise the most frequently used vector type in clinical studies to date. Both intense lab research and insights from the clinical trials reveal the importance of a comprehensive understanding of vector-host interactions. Especially for systemic intravenous adenovirus vector delivery, it is paramount to develop safe and efficacious vectors. Very early vector-host interactions that take place in blood long before the first cell is being transduced are phenomena triggered by the surface, shape, and size of the adenovirus vector particles. Not surprisingly, a multitude of different technologies ranging from genetics to chemistry has been developed to alter the adenovirus vector surface. In this review, we discuss the most important technologies and evaluate them for their suitability to overcome hurdles imposed by early vector-host interactions.
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Affiliation(s)
- Claudia Hagedorn
- Chair of Biochemistry and Molecular Medicine, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University , Witten, Germany
| | - Florian Kreppel
- Chair of Biochemistry and Molecular Medicine, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University , Witten, Germany
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45
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Baker AT, Aguirre-Hernández C, Halldén G, Parker AL. Designer Oncolytic Adenovirus: Coming of Age. Cancers (Basel) 2018; 10:E201. [PMID: 29904022 PMCID: PMC6025169 DOI: 10.3390/cancers10060201] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 12/26/2022] Open
Abstract
The licensing of talimogene laherparepvec (T-Vec) represented a landmark moment for oncolytic virotherapy, since it provided unequivocal evidence for the long-touted potential of genetically modified replicating viruses as anti-cancer agents. Whilst T-Vec is promising as a locally delivered virotherapy, especially in combination with immune-checkpoint inhibitors, the quest continues for a virus capable of specific tumour cell killing via systemic administration. One candidate is oncolytic adenovirus (Ad); it’s double stranded DNA genome is easily manipulated and a wide range of strategies and technologies have been employed to empower the vector with improved pharmacokinetics and tumour targeting ability. As well characterised clinical and experimental agents, we have detailed knowledge of adenoviruses’ mechanisms of pathogenicity, supported by detailed virological studies and in vivo interactions. In this review we highlight the strides made in the engineering of bespoke adenoviral vectors to specifically infect, replicate within, and destroy tumour cells. We discuss how mutations in genes regulating adenoviral replication after cell entry can be used to restrict replication to the tumour, and summarise how detailed knowledge of viral capsid interactions enable rational modification to eliminate native tropisms, and simultaneously promote active uptake by cancerous tissues. We argue that these designer-viruses, exploiting the viruses natural mechanisms and regulated at every level of replication, represent the ideal platforms for local overexpression of therapeutic transgenes such as immunomodulatory agents. Where T-Vec has paved the way, Ad-based vectors now follow. The era of designer oncolytic virotherapies looks decidedly as though it will soon become a reality.
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Affiliation(s)
- Alexander T Baker
- Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
| | - Carmen Aguirre-Hernández
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Gunnel Halldén
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Alan L Parker
- Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
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46
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Abstract
We present here that adenovirus type 52 (HAdV-52) attaches to target cells through a mechanism not previously observed in other human pathogenic viruses. The interaction involves unusual, transient, electrostatic interactions between the short fiber capsid protein and polysialic acid (polySia)-containing receptors on target cells. Knowledge about the binding interactions between polySia and its natural ligands is relatively limited, and our results therefore provide additional insight not only into adenovirus biology but also into the structural basis of polySia function. Since polySia can be found in high expression levels in brain and lung cancers where its presence is associated with poor prognosis, we suggest that this polySia-binding adenovirus could be useful for design of vectors for gene therapy of these cancers. Human adenovirus 52 (HAdV-52) is one of only three known HAdVs equipped with both a long and a short fiber protein. While the long fiber binds to the coxsackie and adenovirus receptor, the function of the short fiber in the virus life cycle is poorly understood. Here, we show, by glycan microarray analysis and cellular studies, that the short fiber knob (SFK) of HAdV-52 recognizes long chains of α-2,8-linked polysialic acid (polySia), a large posttranslational modification of selected carrier proteins, and that HAdV-52 can use polySia as a receptor on target cells. X-ray crystallography, NMR, molecular dynamics simulation, and structure-guided mutagenesis of the SFK reveal that the nonreducing, terminal sialic acid of polySia engages the protein with direct contacts, and that specificity for polySia is achieved through subtle, transient electrostatic interactions with additional sialic acid residues. In this study, we present a previously unrecognized role for polySia as a cellular receptor for a human viral pathogen. Our detailed analysis of the determinants of specificity for this interaction has general implications for protein–carbohydrate interactions, particularly concerning highly charged glycan structures, and provides interesting dimensions on the biology and evolution of members of Human mastadenovirus G.
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47
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Guissoni ACP, Soares CMA, Badr KR, Ficcadori FS, Parente AFA, Parente JA, Baeza LC, Souza M, Cardoso DDDDP. Proteomic analysis of A-549 cells infected with human adenovirus 40 by LC-MS. Virus Genes 2018; 54:351-360. [PMID: 29546667 DOI: 10.1007/s11262-018-1554-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 03/12/2018] [Indexed: 12/17/2022]
Abstract
Human Adenoviruses (HAdVs) are etiological agents of different syndromes such as gastroenteritis, cystitis, ocular, and respiratory diseases, and infection by these viruses may cause alterations in cellular homeostasis. The objective of the study was the proteomic analysis of A-549 cells infected with HAdV-40 using LC-MS. At 30 h of infection, the quantitative analysis revealed 336 differentially expressed proteins. From them, 206 were induced (up-regulated) and 130 were suppressed (down-regulated). The majority of up-regulated proteins were related to energy, cellular organization, stress response, and apoptosis pathways. It was observed alteration of cell metabolism with increase of the glycolytic pathway, β-oxidation, and respiratory chain. Also, the results suggest cytoskeleton reorganization and apoptosis induction. The data can improve knowledge about the replication of HAdV-40 in cell culture considering the proteins related to distinct metabolic pathways induced by viral infection in A-549 cells.
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Affiliation(s)
- Ana Carla Peixoto Guissoni
- Human Virology Laboratory, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, S/N, Sala 418, Setor Universitário, Goiania, Goias, 74605050, Brazil
| | - Célia Maria Almeida Soares
- Molecular Biology Laboratory, Institute of Biological Sciences, Federal University of Goias, Goiania, Goias, Brazil
| | - Kareem R Badr
- Human Virology Laboratory, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, S/N, Sala 418, Setor Universitário, Goiania, Goias, 74605050, Brazil
| | - Fabiola Sousa Ficcadori
- Human Virology Laboratory, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, S/N, Sala 418, Setor Universitário, Goiania, Goias, 74605050, Brazil
| | - Ana Flávia Alves Parente
- Molecular Biology Laboratory, Institute of Biological Sciences, Federal University of Goias, Goiania, Goias, Brazil
| | - Juliana Alves Parente
- Molecular Biology Laboratory, Institute of Biological Sciences, Federal University of Goias, Goiania, Goias, Brazil
| | - Lilian Cristina Baeza
- Molecular Biology Laboratory, Institute of Biological Sciences, Federal University of Goias, Goiania, Goias, Brazil
| | - Menira Souza
- Human Virology Laboratory, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, S/N, Sala 418, Setor Universitário, Goiania, Goias, 74605050, Brazil
| | - Divina das Dores de Paula Cardoso
- Human Virology Laboratory, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, S/N, Sala 418, Setor Universitário, Goiania, Goias, 74605050, Brazil.
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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: 2.1] [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.
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Native and engineered tropism of vectors derived from a rare species D adenovirus serotype 43. Oncotarget 2018; 7:53414-53429. [PMID: 27462785 PMCID: PMC5288196 DOI: 10.18632/oncotarget.10800] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/13/2016] [Indexed: 02/03/2023] Open
Abstract
Unique molecular properties of species D adenoviruses (Ads)—the most diverse yet underexplored group of Ads—have been used to develop improved gene vectors. The low seroprevalence in humans of adenovirus serotype 43 (Ad43), an otherwise unstudied species D Ad, identified this rare serotype as an attractive new human gene therapy vector platform. Thus, in this study we wished to assess biological properties of Ad43 essential to its vectorization. We found that (1) Ad43 virions do not bind blood coagulation factor X and cause low random transduction upon vascular delivery; (2) they clear host tissues more quickly than do traditionally used Ad5 vectors; (3) Ad43 uses CD46 as primary receptor; (4) Ad43 can use integrins as alternative primary receptors. As the first step toward vectorization of Ad43, we demonstrated that the primary receptor specificity of the Ad43 fiber can be altered to achieve infection via Her2, an established oncotarget. Whereas this modification required use of the Ad5 fiber shaft, the presence of this domain in chimeric virions did not make them susceptible for neutralization by anti-Ad5 antibodies.
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Role of enhanced receptor engagement in the evolution of a pandemic acute hemorrhagic conjunctivitis virus. Proc Natl Acad Sci U S A 2017; 115:397-402. [PMID: 29284752 DOI: 10.1073/pnas.1713284115] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Acute hemorrhagic conjunctivitis (AHC) is a painful, contagious eye disease, with millions of cases in the last decades. Coxsackievirus A24 (CV-A24) was not originally associated with human disease, but in 1970 a pathogenic "variant" (CV-A24v) emerged, which is now the main cause of AHC. Initially, this variant circulated only in Southeast Asia, but it later spread worldwide, accounting for numerous AHC outbreaks and two pandemics. While both CV-A24 variant and nonvariant strains still circulate in humans, only variant strains cause AHC for reasons that are yet unknown. Since receptors are important determinants of viral tropism, we set out to map the CV-A24 receptor repertoire and establish whether changes in receptor preference have led to the increased pathogenicity and rapid spread of CV-A24v. Here, we identify ICAM-1 as an essential receptor for both AHC-causing and non-AHC strains. We provide a high-resolution cryo-EM structure of a virus-ICAM-1 complex, which revealed critical ICAM-1-binding residues. These data could help identify a possible conserved mode of receptor engagement among ICAM-1-binding enteroviruses and rhinoviruses. Moreover, we identify a single capsid substitution that has been adopted by all pandemic CV-A24v strains and we reveal that this adaptation enhances the capacity of CV-A24v to bind sialic acid. Our data elucidate the CV-A24v receptor repertoire and point to a role of enhanced receptor engagement in the adaptation to the eye, possibly enabling pandemic spread.
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