1
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Mei S, Li D, Wang A, Zhu G, Zhou B, Li N, Qin Y, Zhang Y, Jiang S. The role of sialidase Neu1 in respiratory diseases. Respir Res 2024; 25:134. [PMID: 38500102 PMCID: PMC10949680 DOI: 10.1186/s12931-024-02763-9] [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: 08/16/2023] [Accepted: 03/09/2024] [Indexed: 03/20/2024] Open
Abstract
Neu1 is a sialidase enzyme that plays a crucial role in the regulation of glycosylation in a variety of cellular processes, including cellular signaling and inflammation. In recent years, numerous evidence has suggested that human NEU1 is also involved in the pathogenesis of various respiratory diseases, including lung infection, chronic obstructive pulmonary disease (COPD), asthma, and pulmonary fibrosis. This review paper aims to provide an overview of the current research on human NEU1 and respiratory diseases.
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Affiliation(s)
- Shiran Mei
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Dingding Li
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Aoyi Wang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Guoxue Zhu
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Bingwen Zhou
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Nian Li
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi Qin
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Yanliang Zhang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China.
- Nanjing Research Center for Infectious Diseases of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu, China.
| | - Shujun Jiang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China.
- Nanjing Research Center for Infectious Diseases of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu, China.
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2
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Zhuang J, Yan Z, Zhou T, Li Y, Wang H. The role of receptors in the cross-species spread of coronaviruses infecting humans and pigs. Arch Virol 2024; 169:35. [PMID: 38265497 DOI: 10.1007/s00705-023-05956-7] [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: 07/14/2023] [Accepted: 11/19/2023] [Indexed: 01/25/2024]
Abstract
The pandemic caused by SARS-CoV-2, which has proven capable of infecting over 30 animal species, highlights the critical need for understanding the mechanisms of cross-species transmission and the emergence of novel coronavirus strains. The recent discovery of CCoV-HuPn-2018, a recombinant alphacoronavirus from canines and felines that can infect humans, along with evidence of SARS-CoV-2 infection in pig cells, underscores the potential for coronaviruses to overcome species barriers. This review investigates the origins and cross-species transmission of both human and porcine coronaviruses, with a specific emphasis on the instrumental role receptors play in this process.
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Affiliation(s)
- Jie Zhuang
- Department of Basic Veterinary Medicine, College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, 121000, China
| | - Zhiwei Yan
- Department of Basic Veterinary Medicine, College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, 121000, China
| | - Tiezhong Zhou
- Department of Basic Veterinary Medicine, College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, 121000, China
| | - Yonggang Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Jinzhou Medical University, Jinzhou, 121000, China.
| | - Huinuan Wang
- Department of Basic Veterinary Medicine, College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, 121000, China.
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3
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Monti M, Milanetti E, Frans MT, Miotto M, Di Rienzo L, Baranov MV, Gosti G, Somavarapu AK, Nagaraj M, Golbek TW, Rossing E, Moons SJ, Boltje TJ, van den Bogaart G, Weidner T, Otzen DE, Tartaglia GG, Ruocco G, Roeters SJ. Two Receptor Binding Strategy of SARS-CoV-2 Is Mediated by Both the N-Terminal and Receptor-Binding Spike Domain. J Phys Chem B 2024; 128:451-464. [PMID: 38190651 PMCID: PMC10801686 DOI: 10.1021/acs.jpcb.3c06258] [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: 09/18/2023] [Revised: 12/06/2023] [Accepted: 12/21/2023] [Indexed: 01/10/2024]
Abstract
It is not well understood why severe acute respiratory syndrome (SARS)-CoV-2 spreads much faster than other β-coronaviruses such as SARS-CoV and Middle East respiratory syndrome (MERS)-CoV. In a previous publication, we predicted the binding of the N-terminal domain (NTD) of SARS-CoV-2 spike to sialic acids (SAs). Here, we experimentally validate this interaction and present simulations that reveal a second possible interaction between SAs and the spike protein via a binding site located in the receptor-binding domain (RBD). The predictions from molecular-dynamics simulations and the previously-published 2D-Zernike binding-site recognition approach were validated through flow-induced dispersion analysis (FIDA)─which reveals the capability of the SARS-CoV-2 spike to bind to SA-containing (glyco)lipid vesicles, and flow-cytometry measurements─which show that spike binding is strongly decreased upon inhibition of SA expression on the membranes of angiotensin converting enzyme-2 (ACE2)-expressing HEK cells. Our analyses reveal that the SA binding of the NTD and RBD strongly enhances the infection-inducing ACE2 binding. Altogether, our work provides in silico, in vitro, and cellular evidence that the SARS-CoV-2 virus utilizes a two-receptor (SA and ACE2) strategy. This allows the SARS-CoV-2 spike to use SA moieties on the cell membrane as a binding anchor, which increases the residence time of the virus on the cell surface and aids in the binding of the main receptor, ACE2, via 2D diffusion.
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Affiliation(s)
- Michele Monti
- RNA
Systems Biology, Centre for Human Technologies (CHT), Istituto Italiano di Tecnologia (IIT), Via Enrico Melen, 83, 16152 Genova, Italy
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Edoardo Milanetti
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
- Department
of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Myrthe T. Frans
- Molecular
Immunology—Groningen Biomolecular Sciences and Biotechnology, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Mattia Miotto
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Lorenzo Di Rienzo
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Maksim V. Baranov
- Molecular
Immunology—Groningen Biomolecular Sciences and Biotechnology, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Giorgio Gosti
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
- DHILab,
Istituto di Scienze del Patrimonio Culturale, Sede di Roma, Consiglio Nazionale delle Ricerche, Via Salaria km, 29300, 00010 Rome, Italy
| | - Arun Kumar Somavarapu
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Madhu Nagaraj
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Thaddeus W. Golbek
- Department
of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Emiel Rossing
- Synthetic
Organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Sam J. Moons
- Synthetic
Organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Thomas J. Boltje
- Synthetic
Organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Geert van den Bogaart
- Molecular
Immunology—Groningen Biomolecular Sciences and Biotechnology, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Tobias Weidner
- Department
of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Daniel E. Otzen
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Gian Gaetano Tartaglia
- RNA
Systems Biology, Centre for Human Technologies (CHT), Istituto Italiano di Tecnologia (IIT), Via Enrico Melen, 83, 16152 Genova, Italy
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Giancarlo Ruocco
- Center
for Life Nanoscience, Istituto Italiano
di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
- Department
of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Steven J. Roeters
- Department
of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
- Amsterdam
UMC, Vrije Universiteit, Department of Anatomy
and Neurosciences, De
Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
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4
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Chen Y, Liu X, Zheng JN, Yang LJ, Luo Y, Yao YL, Liu MQ, Xie TT, Lin HF, He YT, Zhou P, Hu B, Tian RJ, Shi ZL. N-linked glycoproteins and host proteases are involved in swine acute diarrhea syndrome coronavirus entry. J Virol 2023; 97:e0091623. [PMID: 37772826 PMCID: PMC10617469 DOI: 10.1128/jvi.00916-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/16/2023] [Indexed: 09/30/2023] Open
Abstract
IMPORTANCE Gaining insight into the cell-entry mechanisms of swine acute diarrhea syndrome coronavirus (SADS-CoV) is critical for investigating potential cross-species infections. Here, we demonstrated that pretreatment of host cells with tunicamycin decreased SADS-CoV attachment efficiency, indicating that N-linked glycosylation of host cells was involved in SADS-CoV entry. Common N-linked sugars Neu5Gc and Neu5Ac did not interact with the SADS-CoV S1 protein, suggesting that these molecules were not involved in SADS-CoV entry. Additionally, various host proteases participated in SADS-CoV entry into diverse cells with different efficiencies. Our findings suggested that SADS-CoV may exploit multiple pathways to enter cells, providing insights into intervention strategies targeting the cell entry of this virus.
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Affiliation(s)
- Ying Chen
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xi Liu
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiang-Nan Zheng
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China
| | - Li-Jun Yang
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China
| | - Yun Luo
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yu-Lin Yao
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Mei-Qin Liu
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ting-ting Xie
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hao-Feng Lin
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yan-Tong He
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Peng Zhou
- Guangzhou Laboratory, Guangzhou International Bio Island, Guangzhou, China
| | - Ben Hu
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Rui-Jun Tian
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China
| | - Zheng-Li Shi
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
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5
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Matveeva M, Lefebvre M, Chahinian H, Yahi N, Fantini J. Host Membranes as Drivers of Virus Evolution. Viruses 2023; 15:1854. [PMID: 37766261 PMCID: PMC10535233 DOI: 10.3390/v15091854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
The molecular mechanisms controlling the adaptation of viruses to host cells are generally poorly documented. An essential issue to resolve is whether host membranes, and especially lipid rafts, which are usually considered passive gateways for many enveloped viruses, also encode informational guidelines that could determine virus evolution. Due to their enrichment in gangliosides which confer an electronegative surface potential, lipid rafts impose a first control level favoring the selection of viruses with enhanced cationic areas, as illustrated by SARS-CoV-2 variants. Ganglioside clusters attract viral particles in a dynamic electrostatic funnel, the more cationic viruses of a viral population winning the race. However, electrostatic forces account for only a small part of the energy of raft-virus interaction, which depends mainly on the ability of viruses to form a network of hydrogen bonds with raft gangliosides. This fine tuning of virus-ganglioside interactions, which is essential to stabilize the virus on the host membrane, generates a second level of selection pressure driven by a typical induced-fit mechanism. Gangliosides play an active role in this process, wrapping around the virus spikes through a dynamic quicksand-like mechanism. Viruses are thus in an endless race for access to lipid rafts, and they are bound to evolve perpetually, combining speed (electrostatic potential) and precision (fine tuning of amino acids) under the selective pressure of the immune system. Deciphering the host membrane guidelines controlling virus evolution mechanisms may open new avenues for the design of innovative antivirals.
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Affiliation(s)
| | | | | | | | - Jacques Fantini
- Department of Biology, Faculty of Medicine, University of Aix-Marseille, INSERM UMR_S 1072, 13015 Marseille, France; (M.M.); (M.L.); (H.C.); (N.Y.)
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6
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You R, Liu K, Huang M, Tang L, Zhang X, Huang Y, Zhao J, Zhao Y, Ye L, Zhang G. Identification and Comparison of the Sialic Acid-Binding Domain Characteristics of Avian Coronavirus Infectious Bronchitis Virus Spike Protein. J Virol 2023; 97:e0048923. [PMID: 37097156 PMCID: PMC10231253 DOI: 10.1128/jvi.00489-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/26/2023] Open
Abstract
Infectious bronchitis virus (IBV) infections are initiated by the transmembrane spike (S) glycoprotein, which binds to host factors and fuses the viral and cell membranes. The N-terminal domain of the S1 subunit of IBV S protein binds to sialic acids, but the precise location of the sialic acid binding domain (SABD) and the role of the SABD in IBV-infected chickens remain unclear. Here, we identify the S1 N-terminal amino acid (aa) residues 19 to 227 (209 aa total) of IBV strains SD (GI-19) and GD (GI-7), and the corresponding region of M41 (GI-1), as the minimal SABD using truncated protein histochemistry and neuraminidase assays. Both α-2,3- and α-2,6-linked sialic acids on the surfaces of CEK cells can be used as attachment receptors by IBV, leading to increased infection efficiency. However, 9-O acetylation of the sialic acid glycerol side chain inhibits IBV S1 and SABD protein binding. We further constructed recombinant strains in which the S1 gene or the SABD in the GD and SD genomes were replaced with the corresponding region from M41 by reverse genetics. Infecting chickens with these viruses revealed that the virulence and nephrotropism of rSDM41-S1, rSDM41-206, rGDM41-S1, and rGDM41-206 strains were decreased to various degrees compared to their parental strains. A positive sera cross-neutralization test showed that the serotypes were changed for the recombinant viruses. Our results provide insight into IBV infection of host cells that may aid vaccine design. IMPORTANCE To date, only α-2,3-linked sialic acid has been identified as a potential host binding receptor for IBV. Here, we show the minimum region constituting the sialic acid binding domain (SABD) and the binding characteristics of the S1 subunit of spike (S) protein of IBV strains SD (GI-19), GD (GI-7), and M41 (GI-1) to various sialic acids. The 9-O acetylation modification partially inhibits IBV from binding to sialic acid, while the virus can also bind to sialic acid molecules linked to host cells through an α-2,6 linkage, serving as another receptor determinant. Substitution of the putative SABD from strain M41 into strains SD and GD resulted in reduced virulence, nephrotropism, and a serotype switch. These findings suggest that sialic acid binding has diversified during the evolution of γ-coronaviruses, impacting the biological properties of IBV strains. Our results offer insight into the mechanisms by which IBV invades host cells.
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Affiliation(s)
- Renrong You
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Kangchengyin Liu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Min Huang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Lihua Tang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Xuehui Zhang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Yahui Huang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Jing Zhao
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Ye Zhao
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Lilin Ye
- Institute of Immunology, Third Military Medical University, Chongqing, People’s Republic of China
| | - Guozhong Zhang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
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7
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Diskin R. A structural perspective on the evolution of viral/cellular macromolecular complexes within the arenaviridae family of viruses. Curr Opin Struct Biol 2023; 79:102561. [PMID: 36857816 DOI: 10.1016/j.sbi.2023.102561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 03/02/2023]
Abstract
Viruses are obligatory parasites that can replicate only inside host cells. Therefore, the evolutionary drive to enter cells is immense, leading to diversification in the cell-entry strategies of viruses. One of the most critical steps for cell entry is the recognition of the target cell, a process driven by the formation of viral/host macromolecular complexes. The accumulation of recent structural data for viruses within the arenaviridae family allows us to examine how different viral species from the same viral family utilize evolutionarily-related viral glycoproteins to engage with a variety of different cellular receptors. These structural data, compared to other viruses from the coronaviridae family, hint about possible routes that such viruses use for evolving new receptor-binding capabilities, allowing them to switch from one receptor to another.
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Affiliation(s)
- Ron Diskin
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel.
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8
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Abstract
The existence of coronaviruses has been known for many years. These viruses cause significant disease that primarily seems to affect agricultural species. Human coronavirus disease due to the 2002 outbreak of Severe Acute Respiratory Syndrome and the 2012 outbreak of Middle East Respiratory Syndrome made headlines; however, these outbreaks were controlled, and public concern quickly faded. This complacency ended in late 2019 when alarms were raised about a mysterious virus responsible for numerous illnesses and deaths in China. As we now know, this novel disease called Coronavirus Disease 2019 (COVID-19) was caused by Severe acute respiratory syndrome-related-coronavirus-2 (SARS-CoV-2) and rapidly became a worldwide pandemic. Luckily, decades of research into animal coronaviruses hastened our understanding of the genetics, structure, transmission, and pathogenesis of these viruses. Coronaviruses infect a wide range of wild and domestic animals, with significant economic impact in several agricultural species. Their large genome, low dependency on host cellular proteins, and frequent recombination allow coronaviruses to successfully cross species barriers and adapt to different hosts including humans. The study of the animal diseases provides an understanding of the virus biology and pathogenesis and has assisted in the rapid development of the SARS-CoV-2 vaccines. Here, we briefly review the classification, origin, etiology, transmission mechanisms, pathogenesis, clinical signs, diagnosis, treatment, and prevention strategies, including available vaccines, for coronaviruses that affect domestic, farm, laboratory, and wild animal species. We also briefly describe the coronaviruses that affect humans. Expanding our knowledge of this complex group of viruses will better prepare us to design strategies to prevent and/or minimize the impact of future coronavirus outbreaks.
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Key Words
- bcov, bovine coronavirus
- ccov, canine coronavirus
- cov(s), coronavirus(es)
- covid-19, coronavirus disease 2019
- crcov, canine respiratory coronavirus
- e, coronaviral envelope protein
- ecov, equine coronavirus
- fcov, feline coronavirus
- fipv, feline infectious peritonitis virus
- gfcov, guinea fowl coronavirus
- hcov, human coronavirus
- ibv, infectious bronchitis virus
- m, coronaviral membrane protein
- mers, middle east respiratory syndrome-coronavirus
- mhv, mouse hepatitis virus
- pedv, porcine epidemic diarrhea virus
- pdcov, porcine deltacoronavirus
- phcov, pheasant coronavirus
- phev, porcine hemagglutinating encephalomyelitis virus
- prcov, porcine respiratory coronavirus
- rt-pcr, reverse transcriptase polymerase chain reaction
- s, coronaviral spike protein
- sads-cov, swine acute diarrhea syndrome-coronavirus
- sars-cov, severe acute respiratory syndrome-coronavirus
- sars-cov-2, severe acute respiratory syndrome–coronavirus–2
- tcov, turkey coronavirus
- tgev, transmissible gastroenteritis virus
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Affiliation(s)
- Alfonso S Gozalo
- Comparative Medicine Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland;,
| | - Tannia S Clark
- Office of Laboratory Animal Medicine, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
| | - David M Kurtz
- Comparative Medicine Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, North Carolina
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9
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Detwiler RE, Kramer JR. Preparation and applications of artificial mucins in biomedicine. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE 2022; 26:101031. [PMID: 37283850 PMCID: PMC10243510 DOI: 10.1016/j.cossms.2022.101031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Mucus is an essential barrier material that separates organisms from the outside world. This slippery material regulates the transport of nutrients, drugs, gases, and pathogens toward the cell surface. The surface of the cell itself is coated in a mucus-like barrier of glycoproteins and glycolipids. Mucin glycoproteins are the primary component of mucus and the epithelial glycocalyx. Aberrant mucin production is implicated in diverse disease states from cancer and inflammation to pre-term birth and infection. Biological mucins are inherently heterogenous in structure, which has challenged understanding their molecular functions as a barrier and as biochemically active proteins. Therefore, many synthetic materials have been developed as artificial mucins with precisely tunable structures. This review highlights advances in design and synthesis of artificial mucins and their application in biomedical studies of mucin chemistry, biology, and physics.
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Affiliation(s)
- Rachel E. Detwiler
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch
Dr., Salt Lake City, UT 84112, USA
| | - Jessica R. Kramer
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch
Dr., Salt Lake City, UT 84112, USA
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10
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Kohout VR, Wardzala CL, Kramer JR. Synthesis and biomedical applications of mucin mimic materials. Adv Drug Deliv Rev 2022; 191:114540. [PMID: 36228896 PMCID: PMC10066857 DOI: 10.1016/j.addr.2022.114540] [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: 02/10/2022] [Revised: 08/17/2022] [Accepted: 09/13/2022] [Indexed: 02/09/2023]
Abstract
Mucin glycoproteins are the major component of mucus and coat epithelial cell surfaces forming the glycocalyx. The glycocalyx and mucus are involved in the transport of nutrients, drugs, gases, and pathogens toward the cell surface. Mucins are also involved in diverse diseases such as cystic fibrosis and cancer. Due to inherent heterogeneity in native mucin structure, many synthetic materials have been designed to probe mucin chemistry, biology, and physics. Such materials include various glycopolymers, low molecular weight glycopeptides, glycopolypeptides, polysaccharides, and polysaccharide-protein conjugates. This review highlights advances in the area of design and synthesis of mucin mimic materials, and their biomedical applications in glycan binding, epithelial models of infection, therapeutic delivery, vaccine formulation, and beyond.
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Affiliation(s)
- Victoria R Kohout
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA
| | - Casia L Wardzala
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA
| | - Jessica R Kramer
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA.
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11
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The ganglioside GM1a functions as a coreceptor/attachment factor for dengue virus during infection. J Biol Chem 2022; 298:102570. [DOI: 10.1016/j.jbc.2022.102570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 11/09/2022] Open
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12
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Lin F, Zhang H, Li L, Yang Y, Zou X, Chen J, Tang X. PEDV: Insights and Advances into Types, Function, Structure, and Receptor Recognition. Viruses 2022; 14:v14081744. [PMID: 36016366 PMCID: PMC9416423 DOI: 10.3390/v14081744] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/06/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) has been endemic in most parts of the world since its emergence in the 1970s. It infects the small intestine and intestinal villous cells, spreads rapidly, and causes infectious intestinal disease characterized by vomiting, diarrhea, and dehydration, leading to high mortality in newborn piglets and causing massive economic losses to the pig industry. The entry of PEDV into cells is mediated by the binding of its spike protein (S protein) to a host cell receptor. Here, we review the structure of PEDV, its strains, and the structure and function of the S protein shared by coronaviruses, and summarize the progress of research on possible host cell receptors since the discovery of PEDV.
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Affiliation(s)
- Feng Lin
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Huanyu Zhang
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Linquan Li
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yang Yang
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Xiaodong Zou
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Jiahuan Chen
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Xiaochun Tang
- College of Animal Sciences, Jilin University, Changchun 130062, China
- Chongqing Research Institute, Jilin University, Chongqing 401120, China
- Correspondence:
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13
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Desingu PA, Nagarajan K, Dhama K. SARS-CoV-2 gained a novel spike protein S1-N-Terminal Domain (S1-NTD). ENVIRONMENTAL RESEARCH 2022; 211:113047. [PMID: 35292244 PMCID: PMC8917877 DOI: 10.1016/j.envres.2022.113047] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 05/20/2023]
Abstract
The clue behind the SARS-CoV-2 origin is still a matter of debate. Here, we report that SARS-CoV-2 has gained a novel spike protein S1-N-terminal domain (S1-NTD). In our CLuster ANalysis of Sequences (CLANS) analysis, SARS-CoV/SARS-CoV-2 S1-NTDs displayed a close relationship with OC43 and HKU1. However, in the complete and S1-NTD-free spike protein, SARS-CoV/SARS-CoV-2 revealed closeness with MERS-CoV. Further, we have divided the S1-NTD of SARS-CoV-2 related viruses into three distinct types (Type-I to III S1-NTD) and the S1-NTD of viruses associated with SARS-CoVs into another three classes (Type-A to C S1-NTD) using CLANS and phylogenetic analyses. In particular, the results of our study indicate that SARS-CoV-2, RaTG13, and BANAL-20-52 viruses carry Type-I-S1-NTD and other SARS-CoV-2-related-bat viruses have Type-II and III. In addition, it was revealed that the Pangolin-GX and Pangolin-Guangdong lineages inherited Type-I-like and Type-II-like S1-NTD, respectively. Then our CLANS study shows the potential for evolution of Type-I and Type-III S1-NTD from SARS-CoV-related viruses Type-A and Type-B S1-NTDs, respectively. Furthermore, our analysis clarifies the possibility that Type-II S1-NTDs may have evolved from Type-A-S1-NTD of SARS-CoV-related viruses through Type-I S1-NTDs. We also observed that BANAL-20-103, BANAL-20-236, and Pangolin-Guangdong-lineage viruses containing Type-II-like S1-NTD are very close to SARS-CoV-2 in spike genetic areas other than S1-NTD. Possibly, it suggests that the common ancestor spike gene of SARS-CoV-2/RaTG13/BANAL-20-52-like virus may have evolved by recombining the Pangolin-Guangdong/BANAL-20-103/BANAL-20-236-like spike gene to Pangolin-GX-like Type-I-like-S1-NTD in the unsampled bat or undiscovered intermediate host or possibly pangolin. These may then have evolved into SARS-CoV-2, RaTG13, and BANAL-20-52 virus spike genes by host jump mediated evolution. The potential function of the novel Type-I-S1-NTD and other types of S1-NTDs needs to be studied further to understand better its importance in the ongoing COVID-19 outbreak and for future pandemic preparedness.
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Affiliation(s)
| | - K Nagarajan
- Department of Veterinary Pathology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University (TANUVAS), Vepery, Chennai, 600007, India
| | - Kuldeep Dhama
- Avian Diseases Section, Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, U.P, 243 122, India
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14
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Dienst EGT, Kremer EJ. Adenovirus receptors on antigen-presenting cells of the skin. Biol Cell 2022; 114:297-308. [PMID: 35906865 DOI: 10.1111/boc.202200043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 12/01/2022]
Abstract
Skin, the largest human organ, is part of the first line of physical and immunological defense against many pathogens. Understanding how skin antigen-presenting cells (APCs) respond to viruses or virus-based vaccines is crucial to develop antiviral pharmaceutics, and efficient and safe vaccines. Here, we discuss the way resident and recruited skin APCs engage adenoviruses and the impact on innate immune responses. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Eric J Kremer
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, CNRS, Montpellier, France
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15
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Buchanan CJ, Gaunt B, Harrison PJ, Yang Y, Liu J, Khan A, Giltrap AM, Le Bas A, Ward PN, Gupta K, Dumoux M, Tan TK, Schimaski L, Daga S, Picchiotti N, Baldassarri M, Benetti E, Fallerini C, Fava F, Giliberti A, Koukos PI, Davy MJ, Lakshminarayanan A, Xue X, Papadakis G, Deimel LP, Casablancas-Antràs V, Claridge TDW, Bonvin AMJJ, Sattentau QJ, Furini S, Gori M, Huo J, Owens RJ, Schaffitzel C, Berger I, Renieri A, Naismith JH, Baldwin AJ, Davis BG. Pathogen-sugar interactions revealed by universal saturation transfer analysis. Science 2022; 377:eabm3125. [PMID: 35737812 DOI: 10.1126/science.abm3125] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Many pathogens exploit host cell-surface glycans. However, precise analyses of glycan ligands binding with heavily modified pathogen proteins can be confounded by overlapping sugar signals and/or compounded with known experimental constraints. Universal saturation transfer analysis (uSTA) builds on existing nuclear magnetic resonance spectroscopy to provide an automated workflow for quantitating protein-ligand interactions. uSTA reveals that early-pandemic, B-origin-lineage severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike trimer binds sialoside sugars in an "end-on" manner. uSTA-guided modeling and a high-resolution cryo-electron microscopy structure implicate the spike N-terminal domain (NTD) and confirm end-on binding. This finding rationalizes the effect of NTD mutations that abolish sugar binding in SARS-CoV-2 variants of concern. Together with genetic variance analyses in early pandemic patient cohorts, this binding implicates a sialylated polylactosamine motif found on tetraantennary N-linked glycoproteins deep in the human lung as potentially relevant to virulence and/or zoonosis.
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Affiliation(s)
- Charles J Buchanan
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK.,Kavli Institute of Nanoscience Discovery, University of Oxford, Oxford OX1 3QU, UK
| | - Ben Gaunt
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK
| | - Peter J Harrison
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK.,Diamond Light Source, Harwell Science and Innovation Campus, Oxfordshire, UK
| | - Yun Yang
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Jiwei Liu
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK
| | - Aziz Khan
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Andrew M Giltrap
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Audrey Le Bas
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Philip N Ward
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Kapil Gupta
- Max Planck Bristol Centre for Minimal Biology, University of Bristol, Bristol, UK
| | - Maud Dumoux
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK
| | - Tiong Kit Tan
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Lisa Schimaski
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Sergio Daga
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Nicola Picchiotti
- Department of Information Engineering and Mathematics, University of Siena, Siena, Italy.,Department of Mathematics, University of Pavia, Pavia, Italy
| | - Margherita Baldassarri
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elisa Benetti
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Chiara Fallerini
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Francesca Fava
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Annarita Giliberti
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Panagiotis I Koukos
- Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Matthew J Davy
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK
| | - Abirami Lakshminarayanan
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Xiaochao Xue
- Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK.,Sir William Dunn School of Pathology, Oxford, UK
| | | | | | - Virgínia Casablancas-Antràs
- Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK.,Kavli Institute of Nanoscience Discovery, University of Oxford, Oxford OX1 3QU, UK
| | | | - Alexandre M J J Bonvin
- Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | | | - Simone Furini
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Marco Gori
- Department of Information Engineering and Mathematics, University of Siena, Siena, Italy.,Maasai, I3S CNRS, Université Côte d'Azur, Nice, France
| | - Jiandong Huo
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Raymond J Owens
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Christiane Schaffitzel
- Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Imre Berger
- Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Alessandra Renieri
- Medical Genetics, University of Siena, Siena, Italy.,Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | | | - James H Naismith
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Andrew J Baldwin
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK.,Kavli Institute of Nanoscience Discovery, University of Oxford, Oxford OX1 3QU, UK
| | - Benjamin G Davis
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Oxford OX11 0FA, UK.,Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK.,Department of Pharmacology, University of Oxford, Oxford OX1 3QT, UK
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16
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The Glycan-Binding Trait of the Sarbecovirus Spike N-Terminal Domain Reveals an Evolutionary Footprint. J Virol 2022; 96:e0095822. [PMID: 35852351 PMCID: PMC9364788 DOI: 10.1128/jvi.00958-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The spike protein on sarbecovirus virions contains two external, protruding domains: an N-terminal domain (NTD) with unclear function and a C-terminal domain (CTD) that binds the host receptor, allowing for viral entry and infection. While the CTD is well studied for therapeutic interventions, the role of the NTD is far less well understood for many coronaviruses. Here, we demonstrate that the spike NTD from SARS-CoV-2 and other sarbecoviruses binds to unidentified glycans in vitro similarly to other members of the Coronaviridae family. We also show that these spike NTD (S-NTD) proteins adhere to Calu3 cells, a human lung cell line, although the biological relevance of this is unclear. In contrast to what has been shown for Middle East respiratory syndrome coronavirus (MERS-CoV), which attaches sialic acids during cell entry, sialic acids present on Calu3 cells inhibited sarbecovirus infection. Therefore, while sarbecoviruses can interact with cell surface glycans similarly to other coronaviruses, their reliance on glycans for entry is different from that of other respiratory coronaviruses, suggesting sarbecoviruses and MERS-CoV have adapted to different cell types, tissues, or hosts during their divergent evolution. Our findings provide important clues for further exploring the biological functions of sarbecovirus glycan binding and adds to our growing understanding of the complex forces that shape coronavirus spike evolution. IMPORTANCE Spike N-terminal domains (S-NTD) of sarbecoviruses are highly diverse; however, their function remains largely understudied compared with the receptor-binding domains (RBD). Here, we show that sarbecovirus S-NTD can be phylogenetically clustered into five clades and exhibit various levels of glycan binding in vitro. We also show that, unlike some coronaviruses, including MERS-CoV, sialic acids present on the surface of Calu3, a human lung cell culture, inhibit SARS-CoV-2 and other sarbecoviruses. These results suggest that while glycan binding might be an ancestral trait conserved across different coronavirus families, the functional outcome during infection can vary, reflecting divergent viral evolution. Our results expand our knowledge on the biological functions of the S-NTD across diverse sarbecoviruses and provide insight on the evolutionary history of coronavirus spike.
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17
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Ogun OJ, Thaller G, Becker D. An Overview of the Importance and Value of Porcine Species in Sialic Acid Research. BIOLOGY 2022; 11:biology11060903. [PMID: 35741423 PMCID: PMC9219854 DOI: 10.3390/biology11060903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/30/2022] [Accepted: 06/10/2022] [Indexed: 11/19/2022]
Abstract
Simple Summary Humans frequently interact with pigs and porcine meat is the most consumed red meat in the world. In addition, due to the many physiological and anatomical similarities shared between pigs and humans, in contrast to most mammalian species, pigs are a suitable model organism and pig organs can be used for xenotransplantation. However, one major challenge of porcine meat consumption and xenotransplantation is the xenoreactivity between red meat Neu5Gc sialic acid and human anti-Neu5Gc antibodies, which are associated with certain diseases and disorders. Furthermore, pigs express both α2-3 and α2-6 Sia linkages that could serve as viable receptors for viral infections, reassortments, and cross-species transmission of viruses. Therefore, pigs play a significant role in sialic acid research and, in general, in human health. Abstract Humans frequently interact with pigs, whose meat is also one of the primary sources of animal protein. They are one of the main species at the center of sialic acid (Sia) research. Sias are sugars at terminals of glycoconjugates, are expressed at the cell surfaces of mammals, and are important in cellular interactions. N-glycolylneuraminic acid (Neu5Gc) and N-acetylneuraminic acid (Neu5Ac) are notable Sias in mammals. Cytidine monophospho-N-acetylneuraminic acid hydroxylase (CMAH) encodes the CMAH enzyme that biosynthesizes Neu5Gc. Although humans cannot endogenously synthesize Neu5Gc due to the inactivation of this gene by a mutation, Neu5Gc can be metabolically incorporated into human tissues from red meat consumption. Interactions between Neu5Gc and human anti-Neu5Gc antibodies have been associated with certain diseases and disorders. In this review, we summarized the sialic acid metabolic pathway, its regulation and link to viral infections, as well as the importance of the pig as a model organism in Sia research, making it a possible source of Neu5Gc antigens affecting human health. Future research in solving the structures of crucial enzymes involved in Sia metabolism, as well as their regulation and interactions with other enzymes, especially CMAH, could help to understand their function and reduce the amount of Neu5Gc.
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Affiliation(s)
- Oluwamayowa Joshua Ogun
- Institute of Animal Breeding and Husbandry, University of Kiel, Olshausenstraße 40, 24098 Kiel, Germany;
- Correspondence: (O.J.O.); (D.B.)
| | - Georg Thaller
- Institute of Animal Breeding and Husbandry, University of Kiel, Olshausenstraße 40, 24098 Kiel, Germany;
| | - Doreen Becker
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
- Correspondence: (O.J.O.); (D.B.)
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18
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Abstract
Emerging zoonotic viral pathogens threaten global health, and there is an urgent need to discover host and viral determinants influencing infection. We performed a loss-of-function genome-wide CRISPR screen in a human lung cell line using HCoV-OC43, a human betacoronavirus. One candidate gene, VPS29, a component of the retromer complex, was required for infection by HCoV-OC43, SARS-CoV-2, other endemic- and pandemic-threat coronaviruses, as well as ebolavirus. Notably, we observed a heightened requirement for VPS29 by the recently described Omicron variant of SARS-CoV-2 compared to the ancestral variant. However, VPS29 deficiency had no effect on certain other viruses that enter cells via endosomes and had an opposing, enhancing effect on influenza A virus infection. Deficiency in VPS29 or other retromer components caused changes in endosome morphology and acidity and attenuated the activity of endosomal proteases. These changes in endosome properties caused incoming coronavirus, but not influenza virus particles, to become entrapped therein. Overall, these data show how host regulation of endosome characteristics can influence cellular susceptibility to viral infection and identify a host pathway that could serve as a pharmaceutical target for intervention in zoonotic viral diseases.
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Mallick R, Duttaroy AK. Origin and Structural Biology of Novel Coronavirus (SARS-CoV-2). ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1352:1-13. [PMID: 35132591 DOI: 10.1007/978-3-030-85109-5_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION A recent rapid outbreak of infection around the globe has been caused by a novel coronavirus, now known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which was first identified in December 2019 in Wuhan city of Hubei province, People's Republic of China. METHODS We reviewed the currently available literature on coronaviruses. RESULTS Coronaviruses are a group of enveloped viruses with non-segmented, single-stranded, and positive-sense RNA genomes. Although 13 variation sites in open reading frames have been identified among SARS-CoV-2 strains, no mutation has been observed so far in envelop protein. The origin and structural biology of SARS-CoV-2 in details are discussed. CONCLUSIONS Origin and structural biology will help the researchers identify the virus's mechanism in the host and drug design. Currently, no clinical treatments or prevention strategies are available for any human coronavirus.
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Affiliation(s)
- Rahul Mallick
- Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Asim K Duttaroy
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway.
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20
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Known Cellular and Receptor Interactions of Animal and Human Coronaviruses: A Review. Viruses 2022; 14:v14020351. [PMID: 35215937 PMCID: PMC8878323 DOI: 10.3390/v14020351] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 12/12/2022] Open
Abstract
This article aims to review all currently known interactions between animal and human coronaviruses and their cellular receptors. Over the past 20 years, three novel coronaviruses have emerged that have caused severe disease in humans, including SARS-CoV-2 (severe acute respiratory syndrome virus 2); therefore, a deeper understanding of coronavirus host-cell interactions is essential. Receptor-binding is the first stage in coronavirus entry prior to replication and can be altered by minor changes within the spike protein-the coronavirus surface glycoprotein responsible for the recognition of cell-surface receptors. The recognition of receptors by coronaviruses is also a major determinant in infection, tropism, and pathogenesis and acts as a key target for host-immune surveillance and other potential intervention strategies. We aim to highlight the need for a continued in-depth understanding of this subject area following on from the SARS-CoV-2 pandemic, with the possibility for more zoonotic transmission events. We also acknowledge the need for more targeted research towards glycan-coronavirus interactions as zoonotic spillover events from animals to humans, following an alteration in glycan-binding capability, have been well-documented for other viruses such as Influenza A.
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21
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Carbohydrate Ligands for COVID-19 Spike Proteins. Viruses 2022; 14:v14020330. [PMID: 35215921 PMCID: PMC8880561 DOI: 10.3390/v14020330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/25/2022] [Accepted: 02/03/2022] [Indexed: 02/04/2023] Open
Abstract
An outbreak of SARS-CoV-2 coronavirus (COVID-19) first detected in Wuhan, China, has created a public health emergency all over the world. The pandemic has caused more than 340 million confirmed cases and 5.57 million deaths as of 23 January 2022. Although carbohydrates have been found to play a role in coronavirus binding and infection, the role of cell surface glycans in SARS-CoV-2 infection and pathogenesis is still not understood. Herein, we report that the SARS-CoV-2 spike protein S1 subunit binds specifically to blood group A and B antigens, and that the spike protein S2 subunit has a binding preference for Lea antigens. Further examination of the binding preference for different types of red blood cells (RBCs) indicated that the spike protein S1 subunit preferentially binds with blood group A RBCs, whereas the spike protein S2 subunit prefers to interact with blood group Lea RBCs. Angiotensin converting enzyme 2 (ACE2), a known target of SARS-CoV-2 spike proteins, was identified to be a blood group A antigen-containing glycoprotein. Additionally, 6-sulfo N-acetyllactosamine was found to inhibit the binding of the spike protein S1 subunit with blood group A RBCs and reduce the interaction between the spike protein S1 subunit and ACE2.
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22
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Miotto M, Di Rienzo L, Gosti G, Bo' L, Parisi G, Piacentini R, Boffi A, Ruocco G, Milanetti E. Inferring the stabilization effects of SARS-CoV-2 variants on the binding with ACE2 receptor. Commun Biol 2022; 5:20221. [PMID: 34992214 PMCID: PMC8738749 DOI: 10.1038/s42003-021-02946-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/26/2021] [Indexed: 12/18/2022] Open
Abstract
As the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) pandemic continues to spread, several variants of the virus, with mutations distributed all over the viral genome, are emerging. While most of the variants present mutations having little to no effects at the phenotypic level, some of these variants are spreading at a rate that suggests they may present a selective advantage. In particular, these rapidly spreading variants present specific mutations on the spike protein. These observations call for an urgent need to characterize the effects of these variants’ mutations on phenotype features like contagiousness and antigenicity. With this aim, we performed molecular dynamics simulations on a selected set of possible spike variants in order to assess the stabilizing effect of particular amino acid substitutions on the molecular complex. We specifically focused on the mutations that are both characteristic of the top three most worrying variants at the moment, i.e the English, South African, and Amazonian ones, and that occur at the molecular interface between SARS-CoV-2 spike protein and its human ACE2 receptor. We characterize these variants’ effect in terms of (i) residue mobility, (ii) compactness, studying the network of interactions at the interface, and (iii) variation of shape complementarity via expanding the molecular surfaces in the Zernike basis. Overall, our analyses highlighted greater stability of the three variant complexes with respect to both the wild type and two negative control systems, especially for the English and Amazonian variants. In addition, in the three variants, we investigate the effects a not-yet observed mutation in position 501 could provoke on complex stability. We found that a phenylalanine mutation behaves similarly to the English variant and may cooperate in further increasing the stability of the South African one, hinting at the need for careful surveillance for the emergence of these mutations in the population. Ultimately, we show that the proposed observables describe key features for the stability of the ACE2-spike complex and can help to monitor further possible spike variants. Miotto et al. perform molecular dynamics simulations on a selected set of possible SARS-CoV-2 spike variants in order to assess the stabilizing effect of particular amino acid substitutions on the molecular complex. Their analysis can help to monitor further possible spike variants.
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Affiliation(s)
- Mattia Miotto
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Lorenzo Di Rienzo
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Giorgio Gosti
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Leonardo Bo'
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Giacomo Parisi
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Roberta Piacentini
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy.,Department of Biochemical Sciences "Alessandro Rossi Fanelli", Sapienza University of Rome, P.Le A. Moro 5, 00185, Rome, Italy
| | - Alberto Boffi
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy.,Department of Biochemical Sciences "Alessandro Rossi Fanelli", Sapienza University of Rome, P.Le A. Moro 5, 00185, Rome, Italy
| | - Giancarlo Ruocco
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy.,Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Edoardo Milanetti
- Center for Life Nano & Neuroscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy. .,Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
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23
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Hu S, Zhao K, Lan Y, Shi J, Guan J, Lu H, Gao F, Feng H, He W, Li Z. Cell-surface glycans act as attachment factors for porcine hemagglutinating encephalomyelitis virus. Vet Microbiol 2021; 265:109315. [PMID: 34972029 DOI: 10.1016/j.vetmic.2021.109315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/10/2021] [Accepted: 12/19/2021] [Indexed: 01/07/2023]
Abstract
Porcine hemagglutinating encephalomyelitis virus (PHEV) is a neurotropic coronavirus and highly pathogenic in veterinary clinic. Spike (S) protein of PHEV interplays with host components to cross the plasma membrane of target cells, but characterization of its functional receptors is limited. Here, we discovered that cell-surface glycans, i.e., sialic acid (SA) and heparan sulfate (HS), act as critical interacting factors of PHEV, involving in viral attachment. As shown in glycans depletion assay, removing SA or HS from N2a cells inhibits PHEV infection. Soluble sugar monomers were utilized for competitive binding tests, and we found that both SA and HS could specifically bind to PHEV and affect the viral infectivity. Furthermore, the expression of heparan sulfate proteoglycans (HSPGs), including syndecans and glypicans, and endoglycosidase heparinase which cleaves HS were regulated by PHEV RNA replication. Together, we newly identified specificity recognition of cellular glycans and PHEV during infection, providing novel cellular targets for antiviral therapies and better understanding of pathogenesis.
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Affiliation(s)
- Shiyu Hu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Kui Zhao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yungang Lan
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Junchao Shi
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jiyu Guan
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Huijun Lu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, China
| | - Feng Gao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Haihua Feng
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Wenqi He
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zi Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China; Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China.
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24
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Potential Roles of Modified Pectin Targeting Galectin-3 against Severe Acute Respiratory Syndrome Coronavirus-2. J 2021. [DOI: 10.3390/j4040056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Modified pectin (MP) is a bioactive complex polysaccharide that is broken down into smaller fragments of units and used as an oral dietary supplement for cell proliferation. MP is safe and non-toxic with promising therapeutic properties with regard to targeting galectin-3 (GAL-3) toward the prevention and inhibition of viral infections through the modulation of the immune response and anti-inflammatory cytokine effects. This effect of MP as a GAL-3 antagonism, which has shown benefits in preclinical and clinical models, may be of relevance to the progression of the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in coronavirus disease 2019 patients. The outbreak of emerging infectious diseases continues to pose a threat to human health. Further to the circulation of multiple variants of SARS-CoV-2, an effective and alternative therapeutic approach to combat it has become pertinent. The use of MP as a GAL-3 inhibitor could serve as an antiviral agent blocking against the SARS-CoV-2-binding spike protein. This review highlights the potential effects of MP in viral infections, its proposed role as a GAL-3 inhibitor, and the associated function concerning a SARS-CoV-2 infection.
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25
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Interactions between Cryptosporidium parvum and bovine corona virus during sequential and simultaneous infection of HCT-8 cells. Microbes Infect 2021; 24:104909. [PMID: 34813933 DOI: 10.1016/j.micinf.2021.104909] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 07/16/2021] [Accepted: 11/05/2021] [Indexed: 11/20/2022]
Abstract
Neonatal diarrhoea in calves is one of the major health problems in the cattle industry. Although co-infections are often associated with greater severity of disease, there is limited information on any impact on the pathogens themselves. Herein, we studied Cryptosporidium parvum and bovine coronavirus (BCoV) in human HCT-8 cells, inoculated either sequentially or simultaneously, to investigate any influence from the co-infections. Quantitative results from (RT)-qPCR showed that prior inoculation with either of the two pathogens had no influence on the other. However, the results from simultaneous co-inoculation showed that entry of viral particles was higher when C. parvum sporozoites were present, although elevated virus copy numbers were no longer evident after 24 h. The attachment of BCoV to the sporozoites was probably due to specific binding, as investigations with bovine norovirus or equine herpes virus-1 showed no attachment between sporozoites and these viruses. Flow cytometry results at 72 h post inoculation revealed that C. parvum and BCoV infected 1-11% and 10-20% of the HCT-8 cells, respectively, with only 0.04% of individual cells showing double infections. The results from confocal microscopy corroborated those results, showing an increase in foci of infection from 24-72 h post inoculation for both pathogens, but with few double infected cells.
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26
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Sun XL. The role of cell surface sialic acids for SARS-CoV-2 infection. Glycobiology 2021; 31:1245-1253. [PMID: 33909065 PMCID: PMC8600286 DOI: 10.1093/glycob/cwab032] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/06/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is a new virus that has higher contagious capacity than any other previous human coronaviruses (HCoVs) and causes the current coronavirus disease 2019 pandemic. Sialic acids are a group of nine-carbon acidic α-keto sugars, usually located at the end of glycans of cell surface glycoconjugates and serve as attachment sites for previous HCoVs. It is therefore speculated that sialic acids on the host cell surface could serve as co-receptors or attachment factors for SARS-CoV-2 cell entry as well. Recent in silico modeling, molecular modeling predictions and microscopy studies indicate potential sialic acid binding by SARS-CoV-2 upon cell entry. In particular, a flat sialic acid-binding domain was proposed at the N-terminal domain of the spike protein, which may lead to the initial contact and interaction of the virus on the epithelium followed by higher affinity binding to angiotensin-converting enzyme 2 (ACE2) receptor, likely a two-step attachment fashion. However, recent in vitro and ex vivo studies of sialic acids on ACE2 receptor confirmed an opposite role for SARS-CoV-2 binding. In particular, neuraminidase treatment of epithelial cells and ACE2-expressing 293T cells increased SARS-CoV-2 binding. Furthermore, the ACE2 glycosylation inhibition studies indicate that sialic acids on ACE2 receptor prevent ACE2-spike protein interaction. On the other hand, a most recent study indicates that gangliosides could serve as ligands for receptor-binding domain of SARS-CoV-2 spike protein. This mini-review discusses what has been predicted and known so far about the role of sialic acid for SARS-CoV-2 infection and future research perspective.
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Affiliation(s)
- Xue-Long Sun
- Department of Chemistry, Chemical and Biomedical Engineering and Center for Gene Regulation in Health and Disease (GRHD), Cleveland State University, 2121 Euclid Ave, Cleveland, OH 44115, USA
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27
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Kooner AS, Diaz S, Yu H, Santra A, Varki A, Chen X. Chemoenzymatic Synthesis of Sialosides Containing 7- N- or 7,9-Di- N-acetyl Sialic Acid as Stable O-Acetyl Analogues for Probing Sialic Acid-Binding Proteins. J Org Chem 2021; 86:14381-14397. [PMID: 34636559 DOI: 10.1021/acs.joc.1c01091] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel chemoenzymatic synthon strategy has been developed to construct a comprehensive library of α2-3- and α2-6-linked sialosides containing 7-N- or 7,9-di-N-acetyl sialic acid, the stable analogue of naturally occurring 7-O-acetyl- or 7,9-di-O-acetyl-sialic acid. Diazido and triazido-mannose derivatives that were readily synthesized chemically from inexpensive galactose were shown to be effective chemoenzymatic synthons. Together with bacterial sialoside biosynthetic enzymes with remarkable substrate promiscuity, they were successfully used in one-pot multienzyme (OPME) sialylation systems for highly efficient synthesis of sialosides containing multiple azido groups. Conversion of the azido groups to N-acetyl groups generated the desired sialosides. The hydrophobic and UV-detectable benzyloxycarbonyl (Cbz) group introduced in the synthetic acceptors of sialyltransferases was used as a removable protecting group for the propylamine aglycon of the target sialosides. The resulting N-acetyl sialosides were novel stable probes for sialic acid-binding proteins such as plant lectin MAL II, which bond strongly to sialyl T antigens with or without an N-acetyl at C7 or at both C7 and C9 in the sialic acid.
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Affiliation(s)
- Anoopjit Singh Kooner
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Sandra Diaz
- Department of Medicine, University of California, San Diego, California 92093, United States.,Department of Cellular & Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, California 92093, United States
| | - Hai Yu
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Abhishek Santra
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Ajit Varki
- Department of Medicine, University of California, San Diego, California 92093, United States.,Department of Cellular & Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, California 92093, United States
| | - Xi Chen
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
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28
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The roles of two major domains of the porcine deltacoronavirus spike subunit 1 in receptor binding and neutralization. J Virol 2021; 95:e0111821. [PMID: 34549985 PMCID: PMC8610578 DOI: 10.1128/jvi.01118-21] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Determination of the mechanisms of interspecies transmission is of great significance for the prevention of epidemic diseases caused by emerging coronaviruses (CoVs). Recently, porcine deltacoronavirus (PDCoV) was shown to exhibit broad host cell range mediated by surface expression of aminopeptidase N (APN), and humans have been reported to be at risk of PDCoV infection. In the present study, we first demonstrated overexpression of APN orthologues from various species, including mice and felines, in the APN-deficient swine small intestine epithelial cells permitted PDCoV infection, confirming that APN broadly facilitates PDCoV cellular entry and perhaps subsequent interspecies transmission. PDCoV was able to limitedly infect mice in vivo, distributing mainly in enteric and lymphoid tissues, suggesting that mice may serve as a susceptible reservoir of PDCoV. Furthermore, elements (two glycosylation sites and four aromatic amino acids) on the surface of domain B (S1B) of the PDCoV spike glycoprotein S1 subunit were identified to be critical for cellular surface binding of APN orthologues. However, both domain A (S1A) and domain B (S1B) were able to elicit potent neutralizing antibodies against PDCoV infection. The antibodies against S1A inhibited the hemagglutination activity of PDCoV using erythrocytes from various species, which might account for the neutralizing capacity of S1A antibodies partially through a blockage of sialic acid binding. The study reveals the tremendous potential of PDCoV for interspecies transmission and the role of two major PDCoV S1 domains in receptor binding and neutralization, providing a theoretical basis for development of intervention strategies. IMPORTANCE Coronaviruses exhibit a tendency for recombination and mutation, which enables them to quickly adapt to various novel hosts. Previously, orthologues of aminopeptidase N (APN) from mammalian and avian species were found to be associated with porcine deltacoronavirus (PDCoV) cellular entry in vitro. Here, we provide in vivo evidence that mice are susceptible to PDCoV limited infection. We also show that two major domains (S1A and S1B) of the PDCoV spike glycoprotein involved in APN receptor binding can elicit neutralizing antibodies, identifying two glycosylation sites and four aromatic amino acids on the surface of the S1B domain critical for APN binding and demonstrating that the neutralization activity of S1A antibodies is partially attributed to blockage of sugar binding activity. Our findings further implicate PDCoV’s great potential for interspecies transmission, and the data of receptor binding and neutralization may provide a basis for development of future intervention strategies.
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29
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Khan N, de Manuel M, Peyregne S, Do R, Prufer K, Marques-Bonet T, Varki N, Gagneux P, Varki A. Multiple Genomic Events Altering Hominin SIGLEC Biology and Innate Immunity Predated the Common Ancestor of Humans and Archaic Hominins. Genome Biol Evol 2021; 12:1040-1050. [PMID: 32556248 PMCID: PMC7379906 DOI: 10.1093/gbe/evaa125] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Human-specific pseudogenization of the CMAH gene eliminated the mammalian sialic acid (Sia) Neu5Gc (generating an excess of its precursor Neu5Ac), thus changing ubiquitous cell surface “self-associated molecular patterns” that modulate innate immunity via engagement of CD33-related-Siglec receptors. The Alu-fusion-mediated loss-of-function of CMAH fixed ∼2–3 Ma, possibly contributing to the origins of the genus Homo. The mutation likely altered human self-associated molecular patterns, triggering multiple events, including emergence of human-adapted pathogens with strong preference for Neu5Ac recognition and/or presenting Neu5Ac-containing molecular mimics of human glycans, which can suppress immune responses via CD33-related-Siglec engagement. Human-specific alterations reported in some gene-encoding Sia-sensing proteins suggested a “hotspot” in hominin evolution. The availability of more hominid genomes including those of two extinct hominins now allows full reanalysis and evolutionary timing. Functional changes occur in 8/13 members of the human genomic cluster encoding CD33-related Siglecs, all predating the human common ancestor. Comparisons with great ape genomes indicate that these changes are unique to hominins. We found no evidence for strong selection after the Human–Neanderthal/Denisovan common ancestor, and these extinct hominin genomes include almost all major changes found in humans, indicating that these changes in hominin sialobiology predate the Neanderthal–human divergence ∼0.6 Ma. Multiple changes in this genomic cluster may also explain human-specific expression of CD33rSiglecs in unexpected locations such as amnion, placental trophoblast, pancreatic islets, ovarian fibroblasts, microglia, Natural Killer(NK) cells, and epithelia. Taken together, our data suggest that innate immune interactions with pathogens markedly altered hominin Siglec biology between 0.6 and 2 Ma, potentially affecting human evolution.
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Affiliation(s)
- Naazneen Khan
- Glycobiology Research and Training Center, Department of Medicine, University of California San Diego.,Center for Academic Research and Training in Anthropogeny (CARTA),University of California San Diego
| | - Marc de Manuel
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Barcelona, Spain
| | - Stephane Peyregne
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Raymond Do
- Glycobiology Research and Training Center, Department of Medicine, University of California San Diego.,Center for Academic Research and Training in Anthropogeny (CARTA),University of California San Diego
| | - Kay Prufer
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Tomas Marques-Bonet
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Barcelona, Spain.,Catalan Institution of Research and Advanced Studies (ICREA), Barcelona, Spain.,CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.,Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, Barcelona, Spain
| | - Nissi Varki
- Glycobiology Research and Training Center, Department of Medicine, University of California San Diego.,Center for Academic Research and Training in Anthropogeny (CARTA),University of California San Diego
| | - Pascal Gagneux
- Glycobiology Research and Training Center, Department of Medicine, University of California San Diego.,Center for Academic Research and Training in Anthropogeny (CARTA),University of California San Diego
| | - Ajit Varki
- Glycobiology Research and Training Center, Department of Medicine, University of California San Diego.,Center for Academic Research and Training in Anthropogeny (CARTA),University of California San Diego
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30
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Wang Y, Wu Z, Hu W, Hao P, Yang S. Impact of Expressing Cells on Glycosylation and Glycan of the SARS-CoV-2 Spike Glycoprotein. ACS OMEGA 2021; 6:15988-15999. [PMID: 34179644 PMCID: PMC8204757 DOI: 10.1021/acsomega.1c01785] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 06/02/2021] [Indexed: 05/09/2023]
Abstract
The spike glycoprotein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the first point of contact for the virus to recognize and bind to host receptors, is the focus of biomedical research seeking to effectively prevent and treat coronavirus disease (COVID-19). The mass production of spike glycoproteins is usually carried out in different cell systems. Studies have been shown that different expression cell systems alter protein glycosylation of hemagglutinin and neuraminidase in the influenza virus. However, it is not clear whether the cellular system affects the spike protein glycosylation. In this work, we investigated the effect of an expression system on the glycosylation of the spike glycoprotein and its receptor-binding domain. We found that there are significant differences in the glycosylation and glycans attached at each glycosite of the spike glycoprotein obtained from different expression cells. Since glycosylation at the binding site and adjacent amino acids affects the interaction between the spike glycoprotein and the host cell receptor, we recognize that caution should be taken when selecting an expression system to develop inhibitors, antibodies, and vaccines.
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Affiliation(s)
- Yan Wang
- Mass
Spectrometry Facility, National Institute
of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Zhen Wu
- State
Key Laboratory of Genetic Engineering, Department of Biochemistry,
School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Wenhua Hu
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis, Soochow University, Suzhou, Jiangsu 215123, China
| | - Piliang Hao
- School
of Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
| | - Shuang Yang
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis, Soochow University, Suzhou, Jiangsu 215123, China
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31
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Milanetti E, Miotto M, Di Rienzo L, Nagaraj M, Monti M, Golbek TW, Gosti G, Roeters SJ, Weidner T, Otzen DE, Ruocco G. In-Silico Evidence for a Two Receptor Based Strategy of SARS-CoV-2. Front Mol Biosci 2021; 8:690655. [PMID: 34179095 PMCID: PMC8219949 DOI: 10.3389/fmolb.2021.690655] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 05/19/2021] [Indexed: 01/04/2023] Open
Abstract
We propose a computational investigation on the interaction mechanisms between SARS-CoV-2 spike protein and possible human cell receptors. In particular, we make use of our newly developed numerical method able to determine efficiently and effectively the relationship of complementarity between portions of protein surfaces. This innovative and general procedure, based on the representation of the molecular isoelectronic density surface in terms of 2D Zernike polynomials, allows the rapid and quantitative assessment of the geometrical shape complementarity between interacting proteins, which was unfeasible with previous methods. Our results indicate that SARS-CoV-2 uses a dual strategy: in addition to the known interaction with angiotensin-converting enzyme 2, the viral spike protein can also interact with sialic-acid receptors of the cells in the upper airways.
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Affiliation(s)
- Edoardo Milanetti
- Department of Physics, Sapienza University, Rome, Italy
- Center for Life Nano and Neuro Science, Italian Institute of Technology, Rome, Italy
| | - Mattia Miotto
- Department of Physics, Sapienza University, Rome, Italy
- Center for Life Nano and Neuro Science, Italian Institute of Technology, Rome, Italy
| | - Lorenzo Di Rienzo
- Center for Life Nano and Neuro Science, Italian Institute of Technology, Rome, Italy
| | - Madhu Nagaraj
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus, Denmark
| | - Michele Monti
- Centre for Genomic Regulation (CRG), the Barcelona Institute for Science and Technology, Barcelona, Spain
- RNA System Biology Lab, Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, Genoa, Italy
| | | | - Giorgio Gosti
- Center for Life Nano and Neuro Science, Italian Institute of Technology, Rome, Italy
| | | | - Tobias Weidner
- Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Daniel E. Otzen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus, Denmark
| | - Giancarlo Ruocco
- Department of Physics, Sapienza University, Rome, Italy
- Center for Life Nano and Neuro Science, Italian Institute of Technology, Rome, Italy
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32
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Role of host factors in SARS-CoV-2 entry. J Biol Chem 2021; 297:100847. [PMID: 34058196 PMCID: PMC8160279 DOI: 10.1016/j.jbc.2021.100847] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 12/12/2022] Open
Abstract
The zoonotic transmission of highly pathogenic coronaviruses into the human population is a pressing concern highlighted by the ongoing SARS-CoV-2 pandemic. Recent work has helped to illuminate much about the mechanisms of SARS-CoV-2 entry into the cell, which determines host- and tissue-specific tropism, pathogenicity, and zoonotic transmission. Here we discuss current findings on the factors governing SARS-CoV-2 entry. We first reviewed key features of the viral spike protein (S) mediating fusion of the viral envelope and host cell membrane through binding to the SARS-CoV-2 receptor, angiotensin-converting enzyme 2. We then examined the roles of host proteases including transmembrane protease serine 2 and cathepsins in processing S for virus entry and the impact of this processing on endosomal and plasma membrane virus entry routes. We further discussed recent work on several host cofactors that enhance SARS-CoV-2 entry including Neuropilin-1, CD147, phosphatidylserine receptors, heparan sulfate proteoglycans, sialic acids, and C-type lectins. Finally, we discussed two key host restriction factors, i.e., interferon-induced transmembrane proteins and lymphocyte antigen 6 complex locus E, which can disrupt SARS-CoV-2 entry. The features of SARS-CoV-2 are presented in the context of other human coronaviruses, highlighting unique aspects. In addition, we identify the gaps in understanding of SARS-CoV-2 entry that will need to be addressed by future studies.
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33
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Khursheed A, Jain V, Rasool A, Rather MA, Malik NA, Shalla AH. Molecular scaffolds from mother nature as possible lead compounds in drug design and discovery against coronaviruses: A landscape analysis of published literature and molecular docking studies. Microb Pathog 2021; 157:104933. [PMID: 33984466 PMCID: PMC8110334 DOI: 10.1016/j.micpath.2021.104933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/13/2021] [Accepted: 04/28/2021] [Indexed: 12/23/2022]
Abstract
The recent outbreak of viral infection and its transmission has highlighted the importance of its slowdown for the safeguard of public health, globally. The identification of novel drugs and efficient therapies against these infectious viruses is need of the hour. The eruption of COVID-19 is caused by a novel acute respiratory syndrome virus SARS-CoV-2 which has taken the whole world by storm as it has transformed into a global pandemic. This lethal syndrome is a global health threat to general public which has already affected millions of people. Despite the development of some potential vaccines and repurposed drugs by some Pharma companies, this health emergency needs more attention due to the less efficacy of these vaccines coupled with the emergence of novel and resistant strains of SARS-CoV-2. Due to enormous structural diversity and biological applications, natural products are considered as a wonderful source of drugs for such diseases. Natural product based drugs constitute a substantial proportion of the pharmaceutical market particularly in the therapeutic areas of infectious diseases and oncology. The naturally occurring bioactive antiviral phytochemicals including alkaloids, flavonoids and peptides have been subjected to virtual screening against COVID-19. Since there is no specific medicine available for the treatment of Covid-19, designing new drugs using in silico methods plays an all important role to find that magic bullet which can target this lethal virus. The in silico method is not only quick but economical also when compared to the other conventional methods which are hit and trial methods. Based on this in silico approach, various natural products have been recently identified which might have a potential to inhibit COVID-19 outbreak. These natural products have been shown by these docking studies to interact with the spike protein of the novel coronavirus. This spike protein has been shown to bind to a transmembrane protein called Angiotensin converting enzyme 2 (ACE2), this protein acts as a receptor for the viral spike protein. This comprehensive review article anticipates providing a summary of the authentic and peer reviewed published literature about the potential of natural metabolites that can be developed into possible lead compounds against this new threat of Covid-19. Main focus of the article will be to highlight natural sources of potential anti-coronavirus molecules, mechanism of action, docking studies and the target proteins as well as their toxicity profiles. This review article intends to provide a starting point for the research endeavors that are needed for the design and development of drugs based on pure natural products, their synthetic or semi-synthetic derivatives and standardized plant extracts. This review article will be highly helpful for scientists who are working or intend to work on antiviral drugs from natural sources.
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Affiliation(s)
- Aadil Khursheed
- Department of Chemistry, Madhyanchal Professional University, Ratibad, Bhopal, 462044, Madhya Pradesh, India
| | - Vikrant Jain
- Department of Chemistry, Madhyanchal Professional University, Ratibad, Bhopal, 462044, Madhya Pradesh, India
| | - Ajaz Rasool
- Department of Zoology, University of Kashmir, Srinagar, 190006, India
| | - Manzoor A Rather
- Department of Chemistry, Islamic University of Science and Technology, Awanti Pora, 192122, Jammu and Kashmir, India.
| | - Nisar Ahmad Malik
- Department of Chemistry, Islamic University of Science and Technology, Awanti Pora, 192122, Jammu and Kashmir, India
| | - Aabid Hussain Shalla
- Department of Chemistry, Islamic University of Science and Technology, Awanti Pora, 192122, Jammu and Kashmir, India
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Wallace LE, Liu M, van Kuppeveld FJM, de Vries E, de Haan CAM. Respiratory mucus as a virus-host range determinant. Trends Microbiol 2021; 29:983-992. [PMID: 33875348 PMCID: PMC8503944 DOI: 10.1016/j.tim.2021.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/19/2022]
Abstract
Efficient penetration of the mucus layer is needed for respiratory viruses to avoid mucociliary clearance prior to infection. Many respiratory viruses bind to glycans on the heavily glycosylated mucins that give mucus its gel-like characteristics. Influenza viruses, some paramyxoviruses, and coronaviruses avoid becoming trapped in the mucus by releasing themselves by means of their envelope-embedded enzymes that destroy glycan receptors. For efficient infection, receptor binding and destruction need to be in balance with the host receptor repertoire. Establishment in a novel host species requires resetting of the balance to adapt to the different glycan repertoire encountered. Growing understanding of species-specific mucosal glycosylation patterns and the dynamic interaction with respiratory viruses identifies the mucus layer as a major host-range determinant and barrier for zoonotic transfer.
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Affiliation(s)
- Louisa E Wallace
- Section Virology, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands
| | - Mengying Liu
- Section Virology, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands
| | - Frank J M van Kuppeveld
- Section Virology, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands
| | - Erik de Vries
- Section Virology, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands.
| | - Cornelis A M de Haan
- Section Virology, Division Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands.
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35
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Bongiovanni A, Cusimano A, Annunziata I, d'Azzo A. Sialylation of host proteins as targetable risk factor for COVID-19 susceptibility and spreading: A hypothesis. FASEB Bioadv 2021; 3:192-197. [PMID: 33733058 PMCID: PMC7944874 DOI: 10.1096/fba.2020-00073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/24/2020] [Accepted: 12/16/2020] [Indexed: 12/23/2022] Open
Abstract
Individuals infected with the severe acute respiratory syndrome (SARS)‐related coronavirus 2 (SARS‐CoV‐2) develop a critical and even fatal disease, called Coronavirus disease‐19 (COVID‐19), that eventually evolves into acute respiratory distress syndrome. The gravity of the SARS‐CoV‐2 pandemic, the escalating number of confirmed cases around the world, the many unknowns related to the virus mode of action, and the heterogenous outcome of COVID‐19 disease in the population ask for the rapid development of alternative approaches, including repurposing of existing drugs, that may dampen virus infectivity. SARS‐CoV‐2 infects human cells through interaction with sialylated receptors at the surface of epithelial cells, such as angiotensin‐converting enzyme 2 (ACE2). Glycan composition on virus entry receptors has been shown to influence the rate of infection of SARS‐CoV‐2 and spreading of virions has recently been linked to altered lysosomal exocytosis. These processes could concurrently involve the lysosomal system and its glycosidases. We hypothesize that modulating the activity of one of them, the lysosomal sialidase NEU1, could impinge on both the sialylation status of ACE2 and other host receptors as well as the extent of lysosomal exocytosis. Thus NEU1‐controlled pathways may represent therapeutic targets, which could impact on SARS‐CoV‐2 susceptibility, infectivity, and spread.
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Affiliation(s)
- Antonella Bongiovanni
- Institute of Biomedical Research and Innovation (IRIB) National Research Council (CNR) Palermo Italy
| | - Antonella Cusimano
- Institute of Biomedical Research and Innovation (IRIB) National Research Council (CNR) Palermo Italy
| | - Ida Annunziata
- Department of Genetics St. Jude Children's Research Hospital Memphis Tennessee USA
| | - Alessandra d'Azzo
- Department of Genetics St. Jude Children's Research Hospital Memphis Tennessee USA
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36
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Vieira C, Nery L, Martins L, Jabour L, Dias R, Simões E Silva AC. Downregulation of Membrane-bound Angiotensin Converting Enzyme 2 (ACE2) Receptor has a Pivotal Role in COVID-19 Immunopathology. Curr Drug Targets 2021; 22:254-281. [PMID: 33081670 DOI: 10.2174/1389450121666201020154033] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/06/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The Coronavirus Disease 2019 (COVID-19) is becoming the major health issue in recent human history with thousands of deaths and millions of cases worldwide. Newer research and old experience with other coronaviruses highlighted a probable underlying mechanism of disturbance of the renin-angiotensin system (RAS) that is associated with the intrinsic effects of SARS-CoV-2 infection. OBJECTIVE In this review, we aimed to describe the intimate connections between the RAS components, the immune system and COVID-19 pathophysiology. METHODS This non-systematic review article summarizes recent evidence on the relationship between COVID-19 and the RAS. RESULTS Several studies have indicated that the downregulation of membrane-bound ACE2 may exert a key role for the impairment of immune functions and for COVID-19 patients' outcomes. The downregulation may occur by distinct mechanisms, particularly: (1) the shedding process induced by the SARS-CoV-2 fusion pathway, which reduces the amount of membrane-bound ACE2, stimulating more shedding by the high levels of Angiotensin II; (2) the endocytosis of ACE2 receptor with the virus itself and (3) by the interferon inhibition caused by SARS-CoV-2 effects on the immune system, which leads to a reduction of ACE2 receptor expression. CONCLUSION Recent research provides evidence of a reduction of the components of the alternative RAS axis, including ACE2 and Angiotensin-(1-7). In contrast, increased levels of Angiotensin II can activate the AT1 receptor in several organs. Consequently, increased inflammation, thrombosis and angiogenesis occur in patients infected with SARS-COV-2. Attention should be paid to the interactions of the RAS and COVID-19, mainly in the context of novel vaccines and proposed medications.
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Affiliation(s)
- Cristina Vieira
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Lucas Nery
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Ludimila Martins
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Luiz Jabour
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Raphael Dias
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Ana Cristina Simões E Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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37
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de Melo BAG, Benincasa JC, Cruz EM, Maricato JT, Porcionatto MA. 3D culture models to study SARS-CoV-2 infectivity and antiviral candidates: From spheroids to bioprinting. Biomed J 2021; 44:31-42. [PMID: 33602633 PMCID: PMC7680063 DOI: 10.1016/j.bj.2020.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/06/2020] [Accepted: 11/17/2020] [Indexed: 02/09/2023] Open
Abstract
The pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is receiving worldwide attention, due to the severity of the disease (COVID-19) that resulted in more than a million global deaths so far. The urgent need for vaccines and antiviral drugs is mobilizing the scientific community to develop strategies for studying the mechanisms of SARS-CoV-2 infection, replication kinetics, pathogenesis, host-virus interaction, and infection inhibition. In this work, we review the strategies of tissue engineering in the fabrication of three-dimensional (3D) models used in virology studies, which presented many advantages over conventional cell cultures, such as complex cytoarchitecture and a more physiological microenvironment. Scaffold-free (spheroids and organoids) and scaffold-based (3D scaffolding and 3D bioprinting) approach allow the biofabrication of more realistic models relevant to the pandemic, to be used as in vitro platforms for the development of new vaccines and therapies against COVID-19.
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Affiliation(s)
- Bruna A G de Melo
- Department of Biochemistry, Paulista School of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Julia C Benincasa
- Department of Biochemistry, Paulista School of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Elisa M Cruz
- Department of Biochemistry, Paulista School of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Juliana Terzi Maricato
- Department of Microbiology, Immunology and Parasitology, Paulista School of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marimelia A Porcionatto
- Department of Biochemistry, Paulista School of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil.
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38
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Ramírez Hernández E, Hernández-Zimbrón LF, Martínez Zúñiga N, Leal-García JJ, Ignacio Hernández V, Ucharima-Corona LE, Pérez Campos E, Zenteno E. The Role of the SARS-CoV-2 S-Protein Glycosylation in the Interaction of SARS-CoV-2/ACE2 and Immunological Responses. Viral Immunol 2021; 34:165-173. [PMID: 33605822 DOI: 10.1089/vim.2020.0174] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The current pandemic is caused by the coronavirus disease 2019 (COVID-19), which is, in turn, induced by a novel coronavirus (SARS-CoV-2) that triggers an acute respiratory disease. In recent years, the emergence of SARS-CoV-2 is the third highly pathogenic event and large-scale epidemic affecting the human population. It follows the severe acute respiratory syndrome coronavirus (SARS-CoV) in 2003 and the Middle East respiratory syndrome coronavirus (MERS-CoV) in 2012. This novel SARS-CoV-2 employs the angiotensin-converting enzyme 2 (ACE2) receptor, like SARS-CoV, and spreads principally in the respiratory tract. The viral spike (S) protein of coronaviruses facilities the attachment to the cellular receptor, entrance, and membrane fusion. The S protein is a glycoprotein and is critical to elicit an immune response. Glycosylation is a biologically significant post-translational modification in virus surface proteins. These glycans play important roles in the viral life cycle, structure, immune evasion, and cell infection. However, it is necessary to search for new information about viral behavior and immunological host's response after SARS-CoV-2 infection. The present review discusses the implications of the CoV-2 S protein glycosylation in the SARS-CoV-2/ACE2 interaction and the immunological response. Elucidation of the glycan repertoire on the spike protein can propel research for the development of an appropriate vaccine.
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Affiliation(s)
- Eleazar Ramírez Hernández
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Asociación para Evitar la Ceguera en México I.A.P., Mexico City, Mexico
| | - Luis Fernando Hernández-Zimbrón
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Asociación para Evitar la Ceguera en México I.A.P., Mexico City, Mexico
| | | | - Juan José Leal-García
- Asociación para Evitar la Ceguera en México I.A.P., Mexico City, Mexico.,Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Violeta Ignacio Hernández
- Asociación para Evitar la Ceguera en México I.A.P., Mexico City, Mexico.,Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Luis Eduardo Ucharima-Corona
- Asociación para Evitar la Ceguera en México I.A.P., Mexico City, Mexico.,Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eduardo Pérez Campos
- Centro de Investigación Facultad de Medicina UNAM-UABJO, Oaxaca, Mexico.,Tecnológico Nacional de Mexico/IT, Oaxaca, Mexico
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
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39
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Miotto M, Di Rienzo L, Bò L, Boffi A, Ruocco G, Milanetti E. Molecular Mechanisms Behind Anti SARS-CoV-2 Action of Lactoferrin. Front Mol Biosci 2021; 8:607443. [PMID: 33659275 PMCID: PMC7917183 DOI: 10.3389/fmolb.2021.607443] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022] Open
Abstract
Despite the huge effort to contain the infection, the novel SARS-CoV-2 coronavirus has rapidly become pandemic, mainly due to its extremely high human-to-human transmission capability, and a surprisingly high viral charge of symptom-less people. While the seek for a vaccine is still ongoing, promising results have been obtained with antiviral compounds. In particular, lactoferrin is regarded to have beneficial effects both in preventing and soothing the infection. Here, we explore the possible molecular mechanisms with which lactoferrin interferes with SARS-CoV-2 cell invasion, preventing attachment and/or entry of the virus. To this aim, we search for possible interactions lactoferrin may have with virus structural proteins and host receptors. Representing the molecular iso-electron surface of proteins in terms of 2D-Zernike descriptors, we 1) identified putative regions on the lactoferrin surface able to bind sialic acid present on the host cell membrane, sheltering the cell from the virus attachment; 2) showed that no significant shape complementarity is present between lactoferrin and the ACE2 receptor, while 3) two high complementarity regions are found on the N- and C-terminal domains of the SARS-CoV-2 spike protein, hinting at a possible competition between lactoferrin and ACE2 for the binding to the spike protein.
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Affiliation(s)
- Mattia Miotto
- Department of Physics, University of Rome `La Sapienza', Rome, Italy
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
| | - Lorenzo Di Rienzo
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
| | - Leonardo Bò
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
| | - Alberto Boffi
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
- Department of Biochemical Sciences “A. Rossi Fanelli” Sapienza University, Rome, Italy
| | - Giancarlo Ruocco
- Department of Physics, University of Rome `La Sapienza', Rome, Italy
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
| | - Edoardo Milanetti
- Department of Physics, University of Rome `La Sapienza', Rome, Italy
- Istituto Italiano di Tecnologia (IIT), Center for Life Nano Science, Rome, Italy
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40
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Bò L, Miotto M, Di Rienzo L, Milanetti E, Ruocco G. Exploring the Association Between Sialic Acid and SARS-CoV-2 Spike Protein Through a Molecular Dynamics-Based Approach. FRONTIERS IN MEDICAL TECHNOLOGY 2021; 2:614652. [PMID: 35047894 PMCID: PMC8757799 DOI: 10.3389/fmedt.2020.614652] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022] Open
Abstract
Recent experimental evidence demonstrated the capability of SARS-CoV-2 Spike protein to bind sialic acid molecules, which was a trait not present in SARS-CoV and could shed light on the molecular mechanism used by the virus for the cell invasion. This peculiar feature has been successfully predicted by in-silico studies comparing the sequence and structural characteristics that SARS-CoV-2 shares with other sialic acid-binding viruses, like MERS-CoV. Even if the region of the binding has been identified in the N-terminal domain of Spike protein, so far no comprehensive analyses have been carried out on the spike-sialic acid conformations once in the complex. Here, we addressed this aspect performing an extensive molecular dynamics simulation of a system composed of the N-terminal domain of the spike protein and a sialic acid molecule. We observed several short-lived binding events, reconnecting to the avidic nature of the binding, interestingly occurring in the surface Spike region where several insertions are present with respect to the SARS-CoV sequence. Characterizing the bound configurations via a clustering analysis on the Principal Component of the motion, we identified different possible binding conformations and discussed their dynamic and structural properties. In particular, we analyze the correlated motion between the binding residues and the binding effect on the stability of atomic fluctuation, thus proposing regions with high binding propensity with sialic acid.
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Affiliation(s)
- Leonardo Bò
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Rome, Italy
| | - Mattia Miotto
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Rome, Italy
- Department of Physics, Sapienza University, Rome, Italy
| | - Lorenzo Di Rienzo
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Rome, Italy
| | - Edoardo Milanetti
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Rome, Italy
- Department of Physics, Sapienza University, Rome, Italy
| | - Giancarlo Ruocco
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Rome, Italy
- Department of Physics, Sapienza University, Rome, Italy
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41
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Porcine enteric coronaviruses: an updated overview of the pathogenesis, prevalence, and diagnosis. Vet Res Commun 2021; 45:75-86. [PMID: 34251560 PMCID: PMC8273569 DOI: 10.1007/s11259-021-09808-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/22/2021] [Indexed: 02/07/2023]
Abstract
The recent prevalence of coronavirus (CoV) poses a serious threat to animal and human health. Currently, porcine enteric coronaviruses (PECs), including the transmissible gastroenteritis virus (TGEV), the novel emerging swine acute diarrhoea syndrome coronavirus (SADS-CoV), porcine delta coronavirus (PDCoV), and re-emerging porcine epidemic diarrhoea virus (PEDV), which infect pigs of different ages, have caused more frequent occurrences of diarrhoea, vomiting, and dehydration with high morbidity and mortality in piglets. PECs have the potential for cross-species transmission and are causing huge economic losses in the pig industry in China and the world, which therefore needs to be urgently addressed. Accordingly, this article summarises the pathogenicity, prevalence, and diagnostic methods of PECs and provides an important reference for their improved diagnosis, prevention, and control.
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42
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Noman A, Aqeel M, Khalid N, Hashem M, Alamari S, Zafar S, Qasim M, Irshad MK, Qari SH. Spike glycoproteins: Their significance for corona viruses and receptor binding activities for pathogenesis and viral survival. Microb Pathog 2020; 150:104719. [PMID: 33373693 PMCID: PMC7764473 DOI: 10.1016/j.micpath.2020.104719] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 12/24/2022]
Abstract
The recent outbreak of Covid-19 is posing a severe threat to public health globally. Coronaviruses (CoVs) are the largest known group of positive-sense RNA viruses surviving on an extensive number of natural hosts. CoVs are enveloped and non-segmented viruses with a size between 80 and 120 nm. CoV attachment to the surface receptor and its subsequent entrance into cells is mediated by Spike glycoprotein (S). For enhanced CoV entry and successful pathogenesis of CoV, proteolytic processing and receptor-binding act synergistically for induction of large-scale S conformational changes. The shape, size and orientation of receptor-binding domains in viral attachment proteins are well conserved among viruses of different classes that utilize the same receptor. Therefore, investigations unraveling the distribution of cellular receptors with respect to CoV entry, structural aspects of glycoproteins and related conformational changes are highly significant for understanding virus invasion and infection spread. We present the characteristic features of CoV S-Proteins, their significance for CoVs and related receptor binding activities for pathogenesis and viral survival. We are analyzing the novel role of S-protein of CoVs along with their interactive receptors for improving host immunity and decreasing infection spread. This is hoped that presented information will open new ways in tackling coronavirus, especially for the ongoing epidemic.
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Affiliation(s)
- Ali Noman
- Department of Botany, Government College University, Faisalabad, Pakistan.
| | - Muhammad Aqeel
- State Key Laboratory of Grassland Agroecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, Gansu, PR China.
| | - Noreen Khalid
- Department of Botany, Government College Women University Sialkot, Sialkot, Pakistan
| | - Mohamed Hashem
- King Khalid University, College of Science, Department of Biology, Abha, 61413, Saudi Arabia; Assiut University, Faculty of Science, Botany and Microbiology Department, Assiut, 71516, Egypt
| | - Saad Alamari
- King Khalid University, College of Science, Department of Biology, Abha, 61413, Saudi Arabia; Prince Sultan Bin Abdulaziz Center for Environmental and Tourism Research and Studies, King Khalid University, Abha, Saudi Arabia
| | - Saad Zafar
- District Headquarters Hospital, Faisalabad Medical University, Faisalabad, Pakistan
| | - Muhammad Qasim
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, College of Agriculture & Biotechnology, Ministry of Agricultural and Rural Affairs, Zhejiang University, Hangzhou, 310058, PR China
| | - Muhammad Kashif Irshad
- Department of Environmental Sciences, Government College University, Faisalabad, Pakistan
| | - Sameer H Qari
- Biology Department, Aljumum University College, Umm Al - Qura University, Makkah, Saudi Arabia.
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43
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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: 4.5] [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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Katwal P, Uprety T, Okda F, Antony L, Thomas M, Chase C, Diel DG, Nelson E, Young A, Li F, Scaria J, Kaushik RS. Characterization of bovine ileal epithelial cell line for lectin binding, susceptibility to enteric pathogens, and TLR mediated immune responses. Comp Immunol Microbiol Infect Dis 2020; 74:101581. [PMID: 33260019 DOI: 10.1016/j.cimid.2020.101581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/29/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022]
Abstract
In this study, primary and immortalized bovine intestinal epithelial cells (BIECs) were characterized for the expression of surface carbohydrate moieties. Primary BIEC-c4 cells showed staining greater than 90 % for 16 lectins but less than 50 % staining for four lectins. Immortalized BIECs showed significantly different lectin binding profile for few lectins compared to BIEC-c4 cells. BIEC-c4 cells were studied for infectivity to E. coli, Salmonella enterica, bovine rotavirus, bovine coronavirus, and bovine viral diarrhea virus. Bovine strain E. coli B41 adhered to BIEC-c4 cells and Salmonella strains S. Dublin and S. Mbandaka showed strong cell invasion. BIEC-c4 cells were susceptible to bovine rotavirus. LPS stimulation upregulated IL-10, IL-8, and IL-6 expression and Poly I:C upregulated TLR 8 and TLR 9 expression. This study provides important knowledge on the glycoconjugate expression profile of primary and immortalized BIECs and infectivity and immune responses of primary BIECs to bacterial and viral pathogens or ligands.
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Affiliation(s)
- Pratik Katwal
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Tirth Uprety
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Faten Okda
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA; Dept. of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA; National Research Center, Giza, Egypt
| | - Linto Antony
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Milton Thomas
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Christopher Chase
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Diego G Diel
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA; Department of Population Medicine and Diagnostic Sciences, Cornell University, College of Veterinary Medicine, Ithaca, NY, 14853, USA
| | - Eric Nelson
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Alan Young
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Feng Li
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; Department of Veterinary Science, M.H. Gluck Equine Research Center, University of Kentucky, Lexington, KY, 40546, USA
| | - Joy Scaria
- Dept of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Radhey S Kaushik
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.
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45
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Direct activation of the alternative complement pathway by SARS-CoV-2 spike proteins is blocked by factor D inhibition. Blood 2020; 136:2080-2089. [PMID: 32877502 PMCID: PMC7596849 DOI: 10.1182/blood.2020008248] [Citation(s) in RCA: 246] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 08/25/2020] [Indexed: 12/20/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly contagious respiratory virus that can lead to venous/arterial thrombosis, stroke, renal failure, myocardial infarction, thrombocytopenia, and other end-organ damage. Animal models demonstrating end-organ protection in C3-deficient mice and evidence of complement activation in humans have led to the hypothesis that SARS-CoV-2 triggers complement-mediated endothelial damage, but the mechanism is unclear. Here, we demonstrate that the SARS-CoV-2 spike protein (subunit 1 and 2), but not the N protein, directly activates the alternative pathway of complement (APC). Complement-dependent killing using the modified Ham test is blocked by either C5 or factor D inhibition. C3 fragments and C5b-9 are deposited on TF1PIGAnull target cells, and complement factor Bb is increased in the supernatant from spike protein–treated cells. C5 inhibition prevents the accumulation of C5b-9 on cells, but not C3c; however, factor D inhibition prevents both C3c and C5b-9 accumulation. Addition of factor H mitigates the complement attack. In conclusion, SARS-CoV-2 spike proteins convert nonactivator surfaces to activator surfaces by preventing the inactivation of the cell-surface APC convertase. APC activation may explain many of the clinical manifestations (microangiopathy, thrombocytopenia, renal injury, and thrombophilia) of COVID-19 that are also observed in other complement-driven diseases such as atypical hemolytic uremic syndrome and catastrophic antiphospholipid antibody syndrome. C5 inhibition prevents accumulation of C5b-9 in vitro but does not prevent upstream complement activation in response to SARS-CoV-2 spike proteins.
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Naidu SAG, Clemens RA, Pressman P, Zaigham M, Kadkhoda K, Davies KJA, Naidu AS. COVID-19 during Pregnancy and Postpartum. J Diet Suppl 2020; 19:115-142. [PMID: 33164601 DOI: 10.1080/19390211.2020.1834049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Coronavirus Disease 2019 (COVID-19) triggered by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) infection has been declared a pandemic by the World Health Organization (WHO) on March 11, 2020. Oxidative stress and its related metabolic syndromes are potential risk factors in the susceptibility to, and severity of COVID-19. In concert with the earliest reports of COVID-19, obstetricians started to diagnose and treat SARS-CoV-2 infections during pregnancy ("COVID-19-Pregnancy"). High metabolic demand to sustain normal fetal development increases the burden of oxidative stress in pregnancy. Intracellular redox changes intertwined with acute phase responses at the maternal-fetal interface could amplify during pregnancy. Interestingly, mother-to-fetus transmission of SARS-CoV-2 has not been detected in most of the COVID-19-Pregnancy cases. This relative absence of vertical transmission may be related to the presence of lactoferrin in the placenta, amniotic fluid, and lacteal secretions. However, the cytokine-storm induced during COVID-19-Pregnancy may cause severe inflammatory damage to the fetus, and if uncontrolled, may later result in autism spectrum-like disorders and brain development abnormalities in neonates. Considering this serious health threat to child growth and development, the prevention of COVID-19 during pregnancy should be considered a high priority. This review summarizes the intricate virulence factors of COVID-19 and elucidate its pathobiological spectrum during pregnancy and postpartum periods with a focus on the putative and complex roles of endogenous and exogenous lactoferrin in conferring immunological advantage to the host.
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Affiliation(s)
| | - Roger A Clemens
- University of Southern California, School of Pharmacy, Los Angeles, CA, USA
| | | | - Mehreen Zaigham
- Department of Obstetrics & Gynecology, Skåne University Hospital, Malmö, Sweden
| | - Kamran Kadkhoda
- Immunopathology Laboratory, Robert J. Tomisch Pathology & Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kelvin J A Davies
- Division of Biogerontology, Leonard Davis School of Gerontology, The University of Southern California, Los Angeles, CA, USA.,Division of Molecular & Computational Biology, Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, CA, USA.,Department Biochemistry & Molecular Medicine, Keck School of Medicine of USC, The University of Southern California, Los Angeles, CA, USA
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Varghese PM, Tsolaki AG, Yasmin H, Shastri A, Ferluga J, Vatish M, Madan T, Kishore U. Host-pathogen interaction in COVID-19: Pathogenesis, potential therapeutics and vaccination strategies. Immunobiology 2020; 225:152008. [PMID: 33130519 PMCID: PMC7434692 DOI: 10.1016/j.imbio.2020.152008] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/09/2020] [Accepted: 08/16/2020] [Indexed: 02/07/2023]
Abstract
The current coronavirus pandemic, COVID-19, is the third outbreak of disease caused by the coronavirus family, after Severe Acute Respiratory Syndrome and Middle East Respiratory Syndrome. It is an acute infectious disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). This severe disease is characterised by acute respiratory distress syndrome, septic shock, metabolic acidosis, coagulation dysfunction, and multiple organ dysfunction syndromes. Currently, no drugs or vaccines exist against the disease and the only course of treatment is symptom management involving mechanical ventilation, immune suppressants, and repurposed drugs. The severe form of the disease has a relatively high mortality rate. The last six months have seen an explosion of information related to the host receptors, virus transmission, virus structure-function relationships, pathophysiology, co-morbidities, immune response, treatment and the most promising vaccines. This review takes a critically comprehensive look at various aspects of the host-pathogen interaction in COVID-19. We examine the genomic aspects of SARS-CoV-2, modulation of innate and adaptive immunity, complement-triggered microangiopathy, and host transmission modalities. We also examine its pathophysiological impact during pregnancy, in addition to emphasizing various gaps in our knowledge. The lessons learnt from various clinical trials involving repurposed drugs have been summarised. We also highlight the rationale and likely success of the most promising vaccine candidates.
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Affiliation(s)
- Praveen Mathews Varghese
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, London, United Kingdom; School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Anthony G Tsolaki
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, London, United Kingdom
| | - Hadida Yasmin
- Immunology and Cell Biology Laboratory, Department of Zoology, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal, India
| | - Abhishek Shastri
- Central and North West London NHS Foundation Trust, London, United Kingdom
| | - Janez Ferluga
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, London, United Kingdom
| | - Manu Vatish
- Department of Obstetrics and Gynaecology, Women's Centre, John Radcliffe Oxford University Hospital, Oxford, OX3 9DU, United Kingdom
| | - Taruna Madan
- Department of Innate Immunity, ICMR - National Institute for Research in Reproductive Health, J.M. Street, Parel, Mumbai, Maharashtra, India
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, London, United Kingdom.
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48
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Engin AB, Engin ED, Engin A. Dual function of sialic acid in gastrointestinal SARS-CoV-2 infection. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 79:103436. [PMID: 32562764 PMCID: PMC7833001 DOI: 10.1016/j.etap.2020.103436] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/15/2020] [Indexed: 05/11/2023]
Abstract
Recent analysis concerning the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)- angiotensin converting enzyme (ACE) receptor interaction in enterocytes, the definition of gut-lung axis, as well as the molecular basis of sialic acid-related dual recognition concept in gastrointestinal SARS-CoV-2 infection, have brought a new perspective to potential therapeutic targets. In this review evolving research and clinical data on gastrointestinal SARS-CoV-2 infection are discussed in the context of viral fusion and entry mechanisms, focusing on the different triggers used by coronaviruses. Furthermore, it is emphasized that the viral spike protein is prevented from binding gangliosides, which are composed of a glycosphingolipid with one or more sialic acids, in the presence of chloroquine or hydroxychloroquine. In gastrointestinal SARS-CoV-2 infection the efficiency of these repositioned drugs is debated.
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Affiliation(s)
- Ayse Basak Engin
- Gazi University, Faculty of Pharmacy, Department of Toxicology, Ankara, Turkey.
| | - Evren Doruk Engin
- Ankara University, Biotechnology Institute, Gumusdere Campus, Kecioren, Ankara, Turkey
| | - Atilla Engin
- Gazi University, Faculty of Medicine, Department of General Surgery, Ankara, Turkey
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Wielgat P, Rogowski K, Godlewska K, Car H. Coronaviruses: Is Sialic Acid a Gate to the Eye of Cytokine Storm? From the Entry to the Effects. Cells 2020; 9:E1963. [PMID: 32854433 PMCID: PMC7564400 DOI: 10.3390/cells9091963] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 08/24/2020] [Indexed: 12/16/2022] Open
Abstract
Coronaviruses (CoVs) are a diverse family of the enveloped human and animal viruses reported as causative agents for respiratory and intestinal infections. The high pathogenic potential of human CoVs, including SARS-CoV, MERS-CoV and SARS-CoV-2, is closely related to the invasion mechanisms underlying the attachment and entry of viral particles to the host cells. There is increasing evidence that sialylated compounds of cellular glycocalyx can serve as an important factor in the mechanism of CoVs infection. Additionally, the sialic acid-mediated cross-reactivity with the host immune lectins is known to exert the immune response of different intensity in selected pathological stages. Here, we focus on the last findings in the field of glycobiology in the context of the role of sialic acid in tissue tropism, viral entry kinetics and immune regulation in the CoVs infections.
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Affiliation(s)
- Przemyslaw Wielgat
- Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, 15274 Bialystok, Poland;
| | - Karol Rogowski
- Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, 15295 Bialystok, Poland;
| | - Katarzyna Godlewska
- Department of Haematology, Medical University of Bialystok, M. Sklodowskiej-Curie 24A, 15276 Bialystok, Poland;
| | - Halina Car
- Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, 15274 Bialystok, Poland;
- Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, 15295 Bialystok, Poland;
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50
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Awasthi M, Gulati S, Sarkar DP, Tiwari S, Kateriya S, Ranjan P, Verma SK. The Sialoside-Binding Pocket of SARS-CoV-2 Spike Glycoprotein Structurally Resembles MERS-CoV. Viruses 2020; 12:E909. [PMID: 32825063 PMCID: PMC7551769 DOI: 10.3390/v12090909] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022] Open
Abstract
COVID-19 novel coronavirus (CoV) disease caused by severe acquired respiratory syndrome (SARS)-CoV-2 manifests severe lethal respiratory illness in humans and has recently developed into a worldwide pandemic. The lack of effective treatment strategy and vaccines against the SARS-CoV-2 poses a threat to human health. An extremely high infection rate and multi-organ secondary infection within a short period of time makes this virus more deadly and challenging for therapeutic interventions. Despite high sequence similarity and utilization of common host-cell receptor, human angiotensin-converting enzyme-2 (ACE2) for virus entry, SARS-CoV-2 is much more infectious than SARS-CoV. Structure-based sequence comparison of the N-terminal domain (NTD) of the spike protein of Middle East respiratory syndrome (MERS)-CoV, SARS-CoV, and SARS-CoV-2 illustrate three divergent loop regions in SARS-CoV-2, which is reminiscent of MERS-CoV sialoside binding pockets. Comparative binding analysis with host sialosides revealed conformational flexibility of SARS-CoV-2 divergent loop regions to accommodate diverse glycan-rich sialosides. These key differences with SARS-CoV and similarity with MERS-CoV suggest an evolutionary adaptation of SARS-CoV-2 spike glycoprotein reciprocal interaction with host surface sialosides to infect host cells with wide tissue tropism.
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Affiliation(s)
- Mayanka Awasthi
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA;
| | | | - Debi P. Sarkar
- Department of Biochemistry, University of Delhi South Campus, New Delhi 110021, India;
| | - Swasti Tiwari
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India;
| | - Suneel Kateriya
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India;
| | - Peeyush Ranjan
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA;
| | - Santosh Kumar Verma
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India;
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