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Failayev H, Ganoth A, Tsfadia Y. Molecular insights on the coronavirus MERS-CoV interaction with the CD26 receptor. Virus Res 2024; 342:199330. [PMID: 38272241 PMCID: PMC10862065 DOI: 10.1016/j.virusres.2024.199330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/21/2023] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
The Middle East respiratory syndrome (MERS) is a severe respiratory disease with high fatality rates, caused by the Middle East respiratory syndrome coronavirus (MERS-CoV). The virus initiates infection by binding to the CD26 receptor (also known as dipeptidyl peptidase 4 or DPP4) via its spike protein. Although the receptor-binding domain (RBD) of the viral spike protein and the complex between RBD and the extracellular domain of CD26 have been studied using X-ray crystallography, conflicting studies exist regarding the importance of certain amino acids outside the resolved RBD-CD26 complex interaction interface. To gain atomic-level knowledge of the RBD-CD26 complex, we employed computational simulations to study the complex's dynamic behavior as it evolves from its crystal structure to a conformation stable in solution. Our study revealed previously unidentified interaction regions and interacting amino acids within the complex, determined a novel comprehensive RBD-binding domain of CD26, and by that expanded the current understanding of its structure. Additionally, we examined the impact of a single amino acid substitution, E513A, on the complex's stability. We discovered that this substitution disrupts the complex through an allosteric domino-like mechanism that affects other residues. Since MERS-CoV is a zoonotic virus, we evaluated its potential risk of human infection via animals, and suggest a low likelihood for possible infection by cats or dogs. The molecular structural information gleaned from our insights into the RBD-CD26 complex pre-dissociative states may be proved useful not only from a mechanistic view but also in assessing inter-species transmission and in developing anti-MERS-CoV antiviral therapeutics.
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Affiliation(s)
- Hila Failayev
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Assaf Ganoth
- Department of Physical Therapy, School of Health Professions, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel; The Interdisciplinary Center (IDC), P.O. Box 167, Herzliya 4610101, Israel
| | - Yossi Tsfadia
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.
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Gavotte L, Gaucherel C, Frutos R. Environmental spillover of emerging viruses: Is it true? Environ Res 2023; 233:116416. [PMID: 37321337 DOI: 10.1016/j.envres.2023.116416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
The concept of environmental "spillover" of pathogens to humans is widely used in the scientific literature about emerging diseases with the idea that it is scientifically proven. However, the exact characterization of the mechanism of spillover is simply lacking. A systematic review retrieved 688 articles using this term. The systematic analysis revealed an irreducible polysemy covering ten different definitions. It also demonstrated the absence of explicit definition in most of the articles, and even antinomies. A modeling analysis of the various processes described by these ten definitions showed that none of them corresponded to the complete trajectory leading to the emergence of a disease. There is no article demonstrating a mechanism of spillover. There are only ten articles proposing ideas on how a putative spillover could work but they merely are intellectual constructions. All other articles only reuse the term with no demonstration. It is essential to understand that since there is no scientific concept behind the "spillover", it might be dangerous to base public health and public protection against future pandemics on it.
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Affiliation(s)
- Laurent Gavotte
- UMR 228, Espace Dev, University of Montpellier, 500 Rue Jean-François Breton, 34393 Cedex 05, Montpellier, France
| | - Cédric Gaucherel
- AMAP, INRAE, Univ. Montpellier, CIRAD, CNRS, IRD, Montpellier, France
| | - Roger Frutos
- Cirad, UMR 17, Intertryp, Campus International de Baillarguet, 34393 Cedex 05, Montpellier, France.
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Liu ZJ, Qian XK, Hong MH, Zhang JL, Li DY, Wang TH, Yang ZM, Zhang LY, Wang ZM, Nie HJ, Fan KY, Zhang XF, Chen MM, Sha WL, Roos C, Li M. Global view on virus infection in non-human primates and implications for public health and wildlife conservation. Zool Res 2021; 42:626-632. [PMID: 34410047 PMCID: PMC8455461 DOI: 10.24272/j.issn.2095-8137.2021.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Viruses can be transmitted from animals to humans (and vice versa) and across animal species. As such, host-virus interactions and transmission have attracted considerable attention. Non-human primates (NHPs), our closest evolutionary relatives, are susceptible to human viruses and certain pathogens are known to circulate between humans and NHPs. Here, we generated global statistics on virus infections in NHPs (VI-NHPs) based on a literature search and public data mining. In total, 140 NHP species from 12 families are reported to be infected by 186 DNA and RNA virus species, 68.8% of which are also found in humans, indicating high potential for crossing species boundaries. The top 10 NHP species with high centrality in the NHP-virus network include two great apes (Pan troglodytes, Pongo pygmaeus) and eight Old World monkeys (Macaca mulatta, M. fascicularis, M. leonina, Papio cynocephalus, Cercopithecus ascanius, C. erythrotis, Chlorocebus aethiops, and Allochrocebus lhoesti). Given the wide distribution of Old World monkeys and their frequent contact with humans, there is a high risk of virus circulation between humans and such species. Thus, we suggest recurring epidemiological surveillance of NHPs, specifically Old World monkeys that are in frequent contact with humans, and other effective measures to prevent potential circulation and transmission of viruses. Avoidance of false positives and sampling bias should also be a focus in future work.
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Affiliation(s)
- Zhi-Jin Liu
- College of Life Sciences, Capital Normal University, Beijing 100048, China.,College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.,CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing 100101, China. E-mail:/
| | - Xue-Kun Qian
- College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.,CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing 100101, China
| | - Min-Heng Hong
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Jia-Li Zhang
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Da-Yong Li
- College of Life Sciences, China West Normal University, Nanchong, Sichuan 637009, China
| | - Tian-Han Wang
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Zuo-Min Yang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273100, China
| | - Li-Ye Zhang
- Primate Genetics Laboratory, German Primate Center, Leibniz Institute for Primate Research, Goettingen 37077, Germany
| | - Zi-Ming Wang
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hua-Jian Nie
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Ke-Yue Fan
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Xiong-Fei Zhang
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Meng-Meng Chen
- University of Chinese Academy of Sciences, Beijing 100049, China.,State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wei-Lai Sha
- College of Life Sciences, China West Normal University, Nanchong, Sichuan 637009, China
| | - Christian Roos
- Primate Genetics Laboratory, German Primate Center, Leibniz Institute for Primate Research, Goettingen 37077, Germany.,Gene Bank of Primates, German Primate Center, Leibniz Institute for Primate Research, Goettingen 37077, Germany
| | - Ming Li
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing 100101, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.E-mail:
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Crispell J, Zadoks RN, Harris SR, Paterson B, Collins DM, de-Lisle GW, Livingstone P, Neill MA, Biek R, Lycett SJ, Kao RR, Price-Carter M. Using whole genome sequencing to investigate transmission in a multi-host system: bovine tuberculosis in New Zealand. BMC Genomics 2017; 18:180. [PMID: 28209138 PMCID: PMC5314462 DOI: 10.1186/s12864-017-3569-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 02/09/2017] [Indexed: 12/13/2022] Open
Abstract
Background Bovine tuberculosis (bTB), caused by Mycobacterium bovis, is an important livestock disease raising public health and economic concerns around the world. In New Zealand, a number of wildlife species are implicated in the spread and persistence of bTB in cattle populations, most notably the brushtail possum (Trichosurus vulpecula). Whole Genome Sequenced (WGS) M. bovis isolates sourced from infected cattle and wildlife across New Zealand were analysed. Bayesian phylogenetic analyses were conducted to estimate the substitution rate of the sampled population and investigate the role of wildlife. In addition, the utility of WGS was examined with a view to these methods being incorporated into routine bTB surveillance. Results A high rate of exchange was evident between the sampled wildlife and cattle populations but directional estimates of inter-species transmission were sensitive to the sampling strategy employed. A relatively high substitution rate was estimated, this, in combination with a strong spatial signature and a good agreement to previous typing methods, acts to endorse WGS as a typing tool. Conclusions In agreement with the current knowledge of bTB in New Zealand, transmission of M. bovis between cattle and wildlife was evident. Without direction, these estimates are less informative but taken in conjunction with the low prevalence of bTB in New Zealand’s cattle population it is likely that, currently, wildlife populations are acting as the main bTB reservoir. Wildlife should therefore continue to be targeted if bTB is to be eradicated from New Zealand. WGS will be a considerable aid to bTB eradication by greatly improving the discriminatory power of molecular typing data. The substitution rates estimated here will be an important part of epidemiological investigations using WGS data. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3569-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joseph Crispell
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, Scotland, G61 1QH, UK
| | - Ruth N Zadoks
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, Scotland, G61 1QH, UK
| | - Simon R Harris
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Brent Paterson
- TBfree New Zealand, PO Box 3412, Wellington, 6140, New Zealand
| | | | | | | | - Mark A Neill
- TBfree New Zealand, PO Box 3412, Wellington, 6140, New Zealand
| | - Roman Biek
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, Scotland, G61 1QH, UK
| | - Samantha J Lycett
- Infection and Immunity Division, The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, Scotland, UK
| | - Rowland R Kao
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, Scotland, G61 1QH, UK.
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Yaegashi H, Kanematsu S. Natural infection of the soil-borne fungus Rosellinia necatrix with novel mycoviruses under greenhouse conditions. Virus Res 2015; 219:83-91. [PMID: 26555164 DOI: 10.1016/j.virusres.2015.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 11/02/2015] [Accepted: 11/04/2015] [Indexed: 11/20/2022]
Abstract
Fungi are an important component of the soil ecosystem. Mycoviruses have numerous potential impacts on soil fungi, including phytopathogenic fungal species. However, the diversity and ecology of mycoviruses in soil fungi is largely unexplored. Our previous work has shown that the soil-borne phytopathogenic fungus Rosellinia necatrix was infected with several novel mycoviruses after growing for 2-3 years in an apple orchard. In this study, we investigated whether natural infection of R. necatrix with mycoviruses occurs under limited conditions. Virus-free R. necatrix isolates were grown in a small bucket containing soil samples for a short time (1.5-4.5 months) under greenhouse conditions. Screening of dsRNA mycoviruses among 365 retrieved isolates showed that four, including 6-31, 6-33, 6-35, and 7-11, harbored virus-like dsRNAs. Molecular characterization of the dsRNAs revealed that three retrieved isolates, 6-31, 6-33, and 6-35 were infected with a novel endornavirus and isolate 7-11 is infected with a novel partitivirus belonging to the genus Alphapartitivirus. These novel mycoviruses had no overt biological impact on R. necatrix. Overall, this study indicates that natural infections of R. necatrix with new mycoviruses can occur under experimental soil conditions.
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Affiliation(s)
- Hajime Yaegashi
- Apple Research Division, Institute of Fruit Tree Science, National Agriculture and Food Research Organization (NARO), Japan
| | - Satoko Kanematsu
- Apple Research Division, Institute of Fruit Tree Science, National Agriculture and Food Research Organization (NARO), Japan.
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