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Song Y, Singh A, Feroz MM, Xu S, Zhang F, Jin W, Kumar A, Azadi P, Metzger DW, Linhardt RJ, Dordick JS. Seaweed-derived fucoidans and rhamnan sulfates serve as potent anti-SARS-CoV-2 agents with potential for prophylaxis. Carbohydr Polym 2024; 337:122156. [PMID: 38710572 PMCID: PMC11157668 DOI: 10.1016/j.carbpol.2024.122156] [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: 01/04/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 05/08/2024]
Abstract
Seaweeds represent a rich source of sulfated polysaccharides with similarity to heparan sulfate, a facilitator of myriad virus host cell attachment. For this reason, attention has been drawn to their antiviral activity, including the potential for anti-SARS-CoV-2 activity. We have identified and structurally characterized several fucoidan extracts, including those from different species of brown macroalga, and a rhamnan sulfate from a green macroalga species. A high molecular weight fucoidan extracted from Saccharina japonica (FSjRPI-27), and a rhamnan sulfate extracted from Monostroma nitidum (RSMn), showed potent competitive inhibition of spike glycoprotein receptor binding to a heparin-coated SPR chip. This inhibition was also observed in cell-based assays using hACE2 HEK-293 T cells infected by pseudotyped SARS-CoV-2 virus with IC50 values <1 μg/mL. Effectiveness was demonstrated in vivo using hACE2-transgenic mice. Intranasal administration of FSjRPI-27 showed protection when dosed 6 h prior to and at infection, and then every 2 days post-infection, with 100 % survival and no toxicity at 104 plaque-forming units per mouse vs. buffer control. At 5-fold higher virus dose, FSjRPI-27 reduced mortality and yielded reduced viral titers in bronchioalveolar fluid and lung homogenates vs. buffer control. These findings suggest the potential application of seaweed-based sulfated polysaccharides as promising anti-SARS-CoV-2 prophylactics.
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Affiliation(s)
- Yuefan Song
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America
| | - Amit Singh
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208, United States of America
| | - Maisha M Feroz
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America
| | - Shirley Xu
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America
| | - Fuming Zhang
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America
| | - Weihua Jin
- College of Biotechnology and Bioengineering, Zheijiang University of Technology, Hangzhou 310014, China
| | - Ambrish Kumar
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States of America
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States of America
| | - Dennis W Metzger
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208, United States of America
| | - Robert J Linhardt
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America
| | - Jonathan S Dordick
- Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America; Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America.
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2
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He P, Song Y, Jin W, Li Y, Xia K, Kim SB, Dwivedi R, Farrag M, Bates J, Pomin VH, Wang C, Linhardt RJ, Dordick JS, Zhang F. Marine sulfated glycans inhibit the interaction of heparin with S-protein of SARS-CoV-2 Omicron XBB variant. Glycoconj J 2024; 41:163-174. [PMID: 38642280 DOI: 10.1007/s10719-024-10150-1] [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: 12/18/2023] [Revised: 03/26/2024] [Accepted: 04/04/2024] [Indexed: 04/22/2024]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a worldwide COVID-19 pandemic, leading to 6.8 million deaths. Numerous variants have emerged since its outbreak, resulting in its significantly enhanced ability to spread among humans. As with many other viruses, SARS‑CoV‑2 utilizes heparan sulfate (HS) glycosaminoglycan (GAG) on the surface of host cells to facilitate viral attachment and initiate cellular entry through the ACE2 receptor. Therefore, interfering with virion-HS interactions represents a promising target to develop broad-spectrum antiviral therapeutics. Sulfated glycans derived from marine organisms have been proven to be exceptional reservoirs of naturally existing HS mimetics, which exhibit remarkable therapeutic properties encompassing antiviral/microbial, antitumor, anticoagulant, and anti-inflammatory activities. In the current study, the interactions between the receptor-binding domain (RBD) of S-protein of SARS-CoV-2 (both WT and XBB.1.5 variants) and heparin were applied to assess the inhibitory activity of 10 marine-sourced glycans including three sulfated fucans, three fucosylated chondroitin sulfates and two fucoidans derived from sea cucumbers, sea urchin and seaweed Saccharina japonica, respectively. The inhibitory activity of these marine derived sulfated glycans on the interactions between RBD of S-protein and heparin was evaluated using Surface Plasmon Resonance (SPR). The RBDs of S-proteins from both Omicrion XBB.1.5 and wild-type (WT) were found to bind to heparin, which is a highly sulfated form of HS. All the tested marine-sourced sulfated glycans exhibited strong inhibition of WT and XBB.1.5 S-protein binding to heparin. We believe the study on the molecular interactions between S-proteins and host cell glycosaminoglycans provides valuable insight for the development of marine-sourced, glycan-based inhibitors as potential anti-SARS-CoV-2 agents.
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Affiliation(s)
- Peng He
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- School of Oceanography, Beibu Gulf University, 535011, Qinzhou, China
| | - Yuefan Song
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
| | - Weihua Jin
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, 310014, Hangzhou, China
| | - Yunran Li
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
| | - Ke Xia
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
| | - Seon Beom Kim
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS, USA
- Department of Food Science & Technology, College of Natural Resources and Life Science, Pusan National University, Miryang, Republic of Korea
| | - Rohini Dwivedi
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS, USA
| | - Marwa Farrag
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS, USA
| | - John Bates
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS, USA
| | - Vitor H Pomin
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS, USA
| | - Chunyu Wang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA
| | - Jonathan S Dordick
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA.
| | - Fuming Zhang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA.
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Yang J, Song Y, Jin W, Xia K, Burnett GC, Qiao W, Bates JT, Pomin VH, Wang C, Qiao M, Linhardt RJ, Dordick JS, Zhang F. Sulfated Glycans Inhibit the Interaction of MERS-CoV Receptor Binding Domain with Heparin. Viruses 2024; 16:237. [PMID: 38400013 PMCID: PMC10892611 DOI: 10.3390/v16020237] [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: 12/29/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) is a zoonotic virus with high contagion and mortality rates. Heparan sulfate proteoglycans (HSPGs) are ubiquitously expressed on the surface of mammalian cells. Owing to its high negatively charged property, heparan sulfate (HS) on the surface of host cells is used by many viruses as cofactor to facilitate viral attachment and initiate cellular entry. Therefore, inhibition of the interaction between viruses and HS could be a promising target to inhibit viral infection. In the current study, the interaction between the receptor-binding domain (RBD) of MERS-CoV and heparin was exploited to assess the inhibitory activity of various sulfated glycans such as glycosaminoglycans, marine-sourced glycans (sulfated fucans, fucosylated chondroitin sulfates, fucoidans, and rhamnan sulfate), pentosan polysulfate, and mucopolysaccharide using Surface Plasmon Resonance. We believe this study provides valuable insights for the development of sulfated glycan-based inhibitors as potential antiviral agents.
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Affiliation(s)
- Jiyuan Yang
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (J.Y.); (W.Q.); (M.Q.)
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (Y.S.); (K.X.); (C.W.); (R.J.L.)
| | - Yuefan Song
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (Y.S.); (K.X.); (C.W.); (R.J.L.)
| | - Weihua Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Ke Xia
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (Y.S.); (K.X.); (C.W.); (R.J.L.)
| | - Grace C. Burnett
- Department of Cell & Molecular Biology, The University of Mississippi Medical Center, Jackson, MS 39216, USA; (G.C.B.); (J.T.B.)
| | - Wanjin Qiao
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (J.Y.); (W.Q.); (M.Q.)
| | - John T. Bates
- Department of Cell & Molecular Biology, The University of Mississippi Medical Center, Jackson, MS 39216, USA; (G.C.B.); (J.T.B.)
| | - Vitor H. Pomin
- Department of BioMolecular Sciences, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS 38677, USA;
| | - Chunyu Wang
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (Y.S.); (K.X.); (C.W.); (R.J.L.)
| | - Mingqiang Qiao
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; (J.Y.); (W.Q.); (M.Q.)
| | - Robert J. Linhardt
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (Y.S.); (K.X.); (C.W.); (R.J.L.)
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Jonathan S. Dordick
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Fuming Zhang
- Departments of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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4
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An Z, Bu C, Shi D, Chen Q, Zhang B, Wang Q, Jin L, Chi L. Structurally defined heparin octasaccharide domain for binding to SARS-CoV-2 Omicron BA.4/BA.5/BA.5.2 spike protein RBD. Int J Biol Macromol 2024; 259:129032. [PMID: 38159696 DOI: 10.1016/j.ijbiomac.2023.129032] [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: 06/26/2023] [Revised: 11/15/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
Heparin, a bio-molecule with the highest negative charge density, is pharmaceutically important to prevent SARS-CoV-2 infection due to its strong competitive binding to spike protein compared with cellular heparan sulfate, which was confirmed as a co-receptor for virus-host cell interaction. Hence, the refined structural characterization of heparin targeting viral protein-HS interaction was significant for developing antiviral pharmaceuticals. In our study, heparin oligomers (dp ≥ 4) were prepared using heparinase I. The affinity oligosaccharides binding to Omicron spike protein RBD were separated by affinity chromatography and size exclusion chromatography. HILIC-ESI-FTMS was used for chain mapping analysis. The basic building blocks were analyzed and the binding domain sequence was produced by Seq-GAG software and further measured by SAX chromatography. As results, heparin octasaccharide was found with significantly higher binding ability than hexasaccharide and tetrasaccharide, and the octasaccharide [ΔUA-GlcNS6S-GlcA-GlcNS6S-IdoA2S-GlcNS6S-IdoA2S-GlcNS6S] with 12 sulfate groups showed high binding to RBD. The mechanism of this structurally well-defined octasaccharide binding to RBD was further investigated by molecular docking. The affinity energy of optimal pose was -6.8 kcal/mol and the basic amino acid residues in RBD sequence (Arg403, Arg452, Arg493 and His505) were identified as the major contribution factor to interacting with sulfate/carboxyl groups on saccharide chain. Our study demonstrated that heparin oligosaccharide with well-defined structure could be potentially developed as anti-SARS-CoV-2 drugs.
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Affiliation(s)
- Zizhe An
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Changkai Bu
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Deling Shi
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Qingqing Chen
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Bin Zhang
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Qingchi Wang
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China
| | - Lan Jin
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China.
| | - Lianli Chi
- National Glycoengineering Research Center, Shandong University, No. 72, Binhai Road, Qingdao, Shandong Province 266237, China.
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Shi G, Li T, Lai KK, Johnson RF, Yewdell JW, Compton AA. Omicron Spike confers enhanced infectivity and interferon resistance to SARS-CoV-2 in human nasal tissue. Nat Commun 2024; 15:889. [PMID: 38291024 PMCID: PMC10828397 DOI: 10.1038/s41467-024-45075-8] [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: 05/30/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
Omicron emerged following COVID-19 vaccination campaigns, displaced previous SARS-CoV-2 variants of concern worldwide, and gave rise to lineages that continue to spread. Here, we show that Omicron exhibits increased infectivity in primary adult upper airway tissue relative to Delta. Using recombinant forms of SARS-CoV-2 and nasal epithelial cells cultured at the liquid-air interface, we show that mutations unique to Omicron Spike enable enhanced entry into nasal tissue. Unlike earlier variants of SARS-CoV-2, our findings suggest that Omicron enters nasal cells independently of serine transmembrane proteases and instead relies upon metalloproteinases to catalyze membrane fusion. Furthermore, we demonstrate that this entry pathway unlocked by Omicron Spike enables evasion from constitutive and interferon-induced antiviral factors that restrict SARS-CoV-2 entry following attachment. Therefore, the increased transmissibility exhibited by Omicron in humans may be attributed not only to its evasion of vaccine-elicited adaptive immunity, but also to its superior invasion of nasal epithelia and resistance to the cell-intrinsic barriers present therein.
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Affiliation(s)
- Guoli Shi
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - Tiansheng Li
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Kin Kui Lai
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - Reed F Johnson
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Jonathan W Yewdell
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Alex A Compton
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA.
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Córneo ES, Veras FP, Gomes GF, Schneider AH, Manuella B, Almeida CJLR, Silva CM, Martins RB, Batah SS, Simon CS, Prestes GDS, Alves-Filho JC, Arruda E, Louzada-Junior P, de Oliveira RDR, Fabro AT, Cunha TM, Cunha FQ, Dal-Pizzol F. Enoxaparin improves COVID-19 by reducing Neutrophils Extracellular Traps (NETs) production. Clin Immunol 2023; 257:109836. [PMID: 37951516 DOI: 10.1016/j.clim.2023.109836] [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: 08/03/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND COVID-19 causes consequences such as imbalance of the immune system and thrombotic events. During the infection process, NETs in excess induce a pro-inflammatory response and disseminated intravascular coagulation. We evaluated the role of enoxaparin as a potential inhibitor of NETs. METHODS K18-hACE2 animals infected with the SARS-CoV-2 virus and a group of 23 individuals admitted to the hospital with COVID-19 treated with enoxaparin or without treatment and controls without the disease were included. RESULTS Enoxaparin decreased the levels of NETs, reduced the signs of the disease and mitigated lung damage in the animals infected with SARS-CoV-2. These effects were partially associated with prevention of SARS-CoV-2 entry and NETs synthesis. Clinical data revealed that treatment with enoxaparin decreased the levels of inflammatory markers, the levels of NETs in isolated neutrophils and the organ dysfunction. CONCLUSION This study provides evidence for the beneficial effects of enoxaparin in COVID-19 in addition to its anticoagulant role.
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Affiliation(s)
- Emily S Córneo
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
| | - Flavio Protasio Veras
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil; Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center; Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Giovanni F Gomes
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Ayda H Schneider
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Bruna Manuella
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Cicero J L R Almeida
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Camila M Silva
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | | | - Sabrina S Batah
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carla S Simon
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
| | - Gabriele da S Prestes
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
| | - José Carlos Alves-Filho
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | | | - Paulo Louzada-Junior
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Internal Medicine, Division of Clinical Immunology and Division of Infectious Diseases
| | - Renê D R de Oliveira
- Internal Medicine, Division of Clinical Immunology and Division of Infectious Diseases
| | - Alexandre T Fabro
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thiago M Cunha
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Fernando Queiroz Cunha
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil; Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
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7
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Shi G, Li T, Lai KK, Johnson RF, Yewdell JW, Compton AA. Omicron Spike confers enhanced infectivity and interferon resistance to SARS-CoV-2 in human nasal tissue. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.06.539698. [PMID: 37425811 PMCID: PMC10327209 DOI: 10.1101/2023.05.06.539698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Omicron emerged following COVID-19 vaccination campaigns, displaced previous SARS-CoV-2 variants of concern worldwide, and gave rise to lineages that continue to spread. Here, we show that Omicron exhibits increased infectivity in primary adult upper airway tissue relative to Delta. Using recombinant forms of SARS-CoV-2 and nasal epithelial cells cultured at the liquid-air interface, enhanced infectivity maps to the step of cellular entry and evolved recently through mutations unique to Omicron Spike. Unlike earlier variants of SARS-CoV-2, Omicron enters nasal cells independently of serine transmembrane proteases and instead relies upon metalloproteinases to catalyze membrane fusion. This entry pathway unlocked by Omicron Spike enables evasion of constitutive and interferon-induced antiviral factors that restrict SARS-CoV-2 entry following attachment. Therefore, the increased transmissibility exhibited by Omicron in humans may be attributed not only to its evasion of vaccine-elicited adaptive immunity, but also to its superior invasion of nasal epithelia and resistance to the cell-intrinsic barriers present therein.
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Affiliation(s)
- Guoli Shi
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD
| | - Tiansheng Li
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Kin Kui Lai
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD
| | - Reed F. Johnson
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Jonathan W Yewdell
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Alex A Compton
- HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD
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8
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Shi D, He P, Song Y, Linhardt RJ, Dordick JS, Chi L, Zhang F. Interactions of heparin with key glycoproteins of human respiratory syncytial virus. Front Mol Biosci 2023; 10:1151174. [PMID: 37122559 PMCID: PMC10140432 DOI: 10.3389/fmolb.2023.1151174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/03/2023] [Indexed: 05/02/2023] Open
Abstract
Introduction: The unexpected surge of respiratory syncytial virus (RSV) cases following pandemic phase of COVID-19 has drawn much public attention. Drawing on the latest antiviral research, revisiting this heightened annual outbreak of respiratory disease could lead to new treatments. The ability of sulfated polysaccharides to compete for a variety of viruses binding to cell surface heparan sulfate, suggests several drugs that might have therapeutic potential for targeting RSV-glycosaminoglycan interactions. Methods: In the current study, the binding affinity and kinetics of two RSV glycoproteins (RSV-G protein and RSV-F protein) to heparin were investigated by surface plasmon resonance. Furthermore, solution competition studies using heparin oligosaccharides of different lengths indicated that the binding of RSV-G protein to heparin is size-dependent, whereas RSV-F protein did not show any chain length preference. Results and discussion: The two RSV glycoproteins have slightly different preferences for heparin sulfation patterns, but the N-sulfo group in heparin was most critical for the binding of heparin to both RSV-G protein and RSV-F protein. Finally, pentosan polysulfate and mucopolysaccharide polysulfate were evaluated for their inhibition of the RSV-G protein and RSV-F protein-heparin interaction, and both highly negative compounds showed strong inhibition.
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Affiliation(s)
- Deling Shi
- National Glycoengineering Research Center, Shandong University, Qingdao, China
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Peng He
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Yuefan Song
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Robert J. Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Jonathan S. Dordick
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Lianli Chi
- National Glycoengineering Research Center, Shandong University, Qingdao, China
| | - Fuming Zhang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
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Overduin M, Bhat RK, Kervin TA. SARS-CoV-2 Omicron Subvariants Balance Host Cell Membrane, Receptor, and Antibody Docking via an Overlapping Target Site. Viruses 2023; 15:v15020447. [PMID: 36851661 PMCID: PMC9967007 DOI: 10.3390/v15020447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are emerging rapidly and offer surfaces that are optimized for recognition of host cell membranes while also evading antibodies arising from vaccinations and previous infections. Host cell infection is a multi-step process in which spike heads engage lipid bilayers and one or more angiotensin-converting enzyme 2 (ACE-2) receptors. Here, the membrane binding surfaces of Omicron subvariants are compared using cryo-electron microscopy (cEM) structures of spike trimers from BA.2, BA.2.12.1, BA.2.13, BA.2.75, BA.3, BA.4, and BA.5 viruses. Despite significant differences around mutated sites, they all maintain strong membrane binding propensities that first appeared in BA.1. Both their closed and open states retain elevated membrane docking capacities, although the presence of more closed than open states diminishes opportunities to bind receptors while enhancing membrane engagement. The electrostatic dipoles are generally conserved. However, the BA.2.75 spike dipole is compromised, and its ACE-2 affinity is increased, and BA.3 exhibits the opposite pattern. We propose that balancing the functional imperatives of a stable, readily cleavable spike that engages both lipid bilayers and receptors while avoiding host defenses underlies betacoronavirus evolution. This provides predictive criteria for rationalizing future pandemic waves and COVID-19 transmissibility while illuminating critical sites and strategies for simultaneously combating multiple variants.
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