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Sayedahmed EE, Araújo MV, Silva-Pereira TT, Chothe SK, Elkashif A, Alhashimi M, Wang WC, Santos AP, Nair MS, Gontu A, Nissly R, Francisco de Souza Filho A, Tavares MS, Ayupe MC, Salgado CL, Donizetti de Oliveira Candido É, Leal Oliveira DB, Durigon EL, Heinemann MB, Morais da Fonseca D, Jagannath C, Sá Guimarães AM, Kuchipudi SV, Mittal SK. Impact of an autophagy-inducing peptide on immunogenicity and protection efficacy of an adenovirus-vectored SARS-CoV-2 vaccine. Mol Ther Methods Clin Dev 2023; 30:194-207. [PMID: 37502665 PMCID: PMC10299838 DOI: 10.1016/j.omtm.2023.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023]
Abstract
Because of continual generation of new variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is critical to design the next generation of vaccines to combat the threat posed by SARS-CoV-2 variants. We developed human adenovirus (HAd) vector-based vaccines (HAd-Spike/C5 and HAd-Spike) that express the whole Spike (S) protein of SARS-CoV-2 with or without autophagy-inducing peptide C5 (AIP-C5), respectively. Mice or golden Syrian hamsters immunized intranasally (i.n.) with HAd-Spike/C5 induced similar levels of S-specific humoral immune responses and significantly higher levels of S-specific cell-mediated immune (CMI) responses compared with HAd-Spike vaccinated groups. These results indicated that inclusion of AIP-C5 induced enhanced S-specific CMI responses and similar levels of virus-neutralizing titers against SARS-CoV-2 variants. To investigate the protection efficacy, golden Syrian hamsters immunized i.n. either with HAd-Spike/C5 or HAd-Spike were challenged with SARS-CoV-2. The lungs and nasal turbinates were collected 3, 5, 7, and 14 days post challenge. Significant reductions in morbidity, virus titers, and lung histopathological scores were observed in immunized groups compared with the mock- or empty vector-inoculated groups. Overall, slightly better protection was seen in the HAd-Spike/C5 group compared with the HAd-Spike group.
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Affiliation(s)
- Ekramy E. Sayedahmed
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marcelo Valdemir Araújo
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Butantan Institute, São Paulo, Brazil
| | - Taiana Tainá Silva-Pereira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Shubhada K. Chothe
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ahmed Elkashif
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marwa Alhashimi
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Wen-Chien Wang
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Andrea P. Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ruth Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | | | - Mariana Silva Tavares
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marina Caçador Ayupe
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Caio Loureiro Salgado
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Edison Luiz Durigon
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcos Bryan Heinemann
- Department of Preventive Veterinary Medicine and Animal Health, College of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Denise Morais da Fonseca
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Center for Infectious Diseases and Translational Medicine, Houston Methodist Research Institute, Houston, TX, USA
- Weill Cornell Medical College, New York, NY, USA
| | - Ana Marcia Sá Guimarães
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Suresh K. Mittal
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
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2
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Li LX, Nissly RH, Swaminathan A, Bird IM, Boyle NR, Nair MS, Greenawalt DI, Gontu A, Cavener VS, Sornberger T, Freihaut JD, Kuchipudi SV, Bahnfleth WP. Inactivation of HCoV-NL63 and SARS-CoV-2 in aqueous solution by 254 nm UV-C. J Photochem Photobiol B 2023; 245:112755. [PMID: 37423001 DOI: 10.1016/j.jphotobiol.2023.112755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/29/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Ultraviolet germicidal irradiation (UVGI) is a highly effective means of inactivating many bacteria, viruses, and fungi. UVGI is an attractive viral mitigation strategy against coronaviruses, including the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of the coronavirus disease-2019 (COVID-19) pandemic. This investigation measures the susceptibility of two human coronaviruses to inactivation by 254 nm UV-C radiation. Human coronavirus NL63 and SARS-CoV-2 were irradiated in a collimated, dual-beam, aqueous UV reactor. By measuring fluence and integrating it in real-time, this reactor accounts for the lamp output transients during UVGI exposures. The inactivation rate constants of a one-stage exponential decay model were determined to be 2.050 cm2/mJ and 2.098 cm2/mJ for the NL63 and SARS-CoV-2 viruses, respectively. The inactivation rate constant for SARS-CoV-2 is within 2% of that of NL63, indicating that in identical inactivation environments, very similar UV 254 nm deactivation susceptibilities for these two coronaviruses would be achieved. Given the inactivation rate constant obtained in this study, doses of 1.1 mJ/cm2, 2.2 mJ/cm2, and 3.3 mJ/cm2 would result in a 90%, 99%, and 99.9% inactivation of the SARS-CoV-2 virus, respectively. The inactivation rate constant obtained in this study is significantly higher than values reported from many 254 nm studies, which suggests greater UV susceptibility to the UV-C than what was believed. Overall, results from this study indicate that 254 nm UV-C is effective for inactivation of human coronaviruses, including SARS-CoV-2.
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Affiliation(s)
- Lily X Li
- Pennsylvania State University, Department of Architectural Engineering, 104 Engineering Unit A, University Park, PA, 16802, United States of America
| | - Ruth H Nissly
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America
| | - Anand Swaminathan
- Pennsylvania State University, Department of Architectural Engineering, 104 Engineering Unit A, University Park, PA, 16802, United States of America
| | - Ian M Bird
- Pennsylvania State University, Huck Institutes of the Life Sciences, University Park, PA 16802, United States of America
| | - Nina R Boyle
- Pennsylvania State University, Huck Institutes of the Life Sciences, University Park, PA 16802, United States of America
| | - Meera Surendran Nair
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America
| | - Denver I Greenawalt
- Pennsylvania State University, Huck Institutes of the Life Sciences, University Park, PA 16802, United States of America
| | - Abhinay Gontu
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America
| | - Victoria S Cavener
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America
| | - Ty Sornberger
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America
| | - James D Freihaut
- Pennsylvania State University, Department of Architectural Engineering, 104 Engineering Unit A, University Park, PA, 16802, United States of America.
| | - Suresh V Kuchipudi
- Pennsylvania State University, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, University Park, PA 16802, United States of America; Pennsylvania State University, Huck Institutes of the Life Sciences, University Park, PA 16802, United States of America.
| | - William P Bahnfleth
- Pennsylvania State University, Department of Architectural Engineering, 104 Engineering Unit A, University Park, PA, 16802, United States of America.
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3
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Ramasamy S, Gontu A, Neerukonda S, Ruggiero D, Morrow B, Gupta S, Amirthalingam S, Hardham JM, Lizer JT, Yon M, Nissly RH, Jakka P, Chothe SK, LaBella LC, Tewari D, Nair MS, Kuchipudi SV. SARS-CoV-2 Prevalence and Variant Surveillance among Cats in Pittsburgh, Pennsylvania, USA. Viruses 2023; 15:1493. [PMID: 37515180 PMCID: PMC10386599 DOI: 10.3390/v15071493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/23/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infects many mammals, and SARS-CoV-2 circulation in nonhuman animals may increase the risk of novel variant emergence. Cats are highly susceptible to SARS-CoV-2 infection, and there were cases of virus transmission between cats and humans. The objective of this study was to assess the prevalence of SARS-CoV-2 variant infection of cats in an urban setting. We investigated the prevalence of SARS-CoV-2 variant infections in domestic and community cats in the city of Pittsburgh (n = 272). While no cats tested positive for SARS-CoV-2 viral RNA, 35 cats (12.86%) tested SARS-CoV-2-antibody-positive. Further, we compared a cat-specific experimental lateral flow assay (eLFA) and species-agnostic surrogate virus neutralization assay (sVNT) for SARS-CoV-2 antibody detection in cats (n = 71). The eLFA demonstrated 100% specificity compared to sVNT. The eLFA also showed 100% sensitivity for sera with >90% inhibition and 63.63% sensitivity for sera with 40-89% inhibition in sVNT. Using a variant-specific pseudovirus neutralization assay (pVNT) and antigen cartography, we found the presence of antibodies to pre-Omicron and Omicron SARS-CoV-2 variants. Hence, this approach proves valuable in identifying cat exposure to different SARS-CoV-2 variants. Our results highlight the continued exposure of cats to SARS-CoV-2 and warrant coordinated surveillance efforts.
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Affiliation(s)
- Santhamani Ramasamy
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | | | - Diana Ruggiero
- S.R. Scientific LLC, 5854 Ellsworth Ave., Pittsburgh, PA 15232, USA
| | - Becky Morrow
- S.R. Scientific LLC, 5854 Ellsworth Ave., Pittsburgh, PA 15232, USA
- Frankie's Friends, 740 5th Ave, New Kensington, PA 15068, USA
| | - Sheweta Gupta
- S.R. Scientific LLC, 5854 Ellsworth Ave., Pittsburgh, PA 15232, USA
| | - Saranya Amirthalingam
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | | | | | - Michele Yon
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Ruth H Nissly
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Padmaja Jakka
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Shubhada K Chothe
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Lindsey C LaBella
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Deepanker Tewari
- Pennsylvania Department of Agriculture, Pennsylvania Veterinary Laboratory, Harrisburg, PA 17110, USA
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Suresh V Kuchipudi
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Huck Institute of Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
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4
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Chothe SK, Jakka P, Boorla VS, Ramasamy S, Gontu A, Nissly RH, Brown J, Turner G, Sewall BJ, Reeder DM, Field KA, Engiles JB, Amirthalingam S, Ravichandran A, LaBella L, Nair MS, Maranas CD, Kuchipudi SV. Little Brown Bats ( Myotis lucifugus) Support the Binding of SARS-CoV-2 Spike and Are Likely Susceptible to SARS-CoV-2 Infection. Viruses 2023; 15:v15051103. [PMID: 37243189 DOI: 10.3390/v15051103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), believed to have originated from a bat species, can infect a wide range of non-human hosts. Bats are known to harbor hundreds of coronaviruses capable of spillover into human populations. Recent studies have shown a significant variation in the susceptibility among bat species to SARS-CoV-2 infection. We show that little brown bats (LBB) express angiotensin-converting enzyme 2 receptor and the transmembrane serine protease 2, which are accessible to and support SARS-CoV-2 binding. All-atom molecular dynamics (MD) simulations revealed that LBB ACE2 formed strong electrostatic interactions with the RBD similar to human and cat ACE2 proteins. In summary, LBBs, a widely distributed North American bat species, could be at risk of SARS-CoV-2 infection and potentially serve as a natural reservoir. Finally, our framework, combining in vitro and in silico methods, is a useful tool to assess the SARS-CoV-2 susceptibility of bats and other animal species.
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Affiliation(s)
- Shubhada K Chothe
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Padmaja Jakka
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Santhamani Ramasamy
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ruth H Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Justin Brown
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Pennsylvania Game Commission, 2001 Elmerton Ave, Harrisburg, PA 17110, USA
| | - Gregory Turner
- Pennsylvania Game Commission, 2001 Elmerton Ave, Harrisburg, PA 17110, USA
| | - Brent J Sewall
- Department of Biology, Temple University, Philadelphia, PA 19122, USA
| | - DeeAnn M Reeder
- Department of Biology, Bucknell University, Lewisburg, PA 17837, USA
| | - Kenneth A Field
- Department of Biology, Bucknell University, Lewisburg, PA 17837, USA
| | - Julie B Engiles
- Departments of Pathobiology and Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348, USA
| | - Saranya Amirthalingam
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abirami Ravichandran
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Lindsey LaBella
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Costas D Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Suresh V Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
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5
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Vandegrift KJ, Yon M, Surendran Nair M, Gontu A, Ramasamy S, Amirthalingam S, Neerukonda S, Nissly RH, Chothe SK, Jakka P, LaBella L, Levine N, Rodriguez S, Chen C, Sheersh Boorla V, Stuber T, Boulanger JR, Kotschwar N, Aucoin SG, Simon R, Toal KL, Olsen RJ, Davis JJ, Bold D, Gaudreault NN, Dinali Perera K, Kim Y, Chang KO, Maranas CD, Richt JA, Musser JM, Hudson PJ, Kapur V, Kuchipudi SV. SARS-CoV-2 Omicron (B.1.1.529) Infection of Wild White-Tailed Deer in New York City. Viruses 2022; 14:v14122770. [PMID: 36560774 PMCID: PMC9785669 DOI: 10.3390/v14122770] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/19/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
There is mounting evidence of SARS-CoV-2 spillover from humans into many domestic, companion, and wild animal species. Research indicates that humans have infected white-tailed deer, and that deer-to-deer transmission has occurred, indicating that deer could be a wildlife reservoir and a source of novel SARS-CoV-2 variants. We examined the hypothesis that the Omicron variant is actively and asymptomatically infecting the free-ranging deer of New York City. Between December 2021 and February 2022, 155 deer on Staten Island, New York, were anesthetized and examined for gross abnormalities and illnesses. Paired nasopharyngeal swabs and blood samples were collected and analyzed for the presence of SARS-CoV-2 RNA and antibodies. Of 135 serum samples, 19 (14.1%) indicated SARS-CoV-2 exposure, and 11 reacted most strongly to the wild-type B.1 lineage. Of the 71 swabs, 8 were positive for SARS-CoV-2 RNA (4 Omicron and 4 Delta). Two of the animals had active infections and robust neutralizing antibodies, revealing evidence of reinfection or early seroconversion in deer. Variants of concern continue to circulate among and may reinfect US deer populations, and establish enzootic transmission cycles in the wild: this warrants a coordinated One Health response, to proactively surveil, identify, and curtail variants of concern before they can spill back into humans.
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Affiliation(s)
- Kurt J. Vandegrift
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
- The Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Correspondence: (K.J.V.); (V.K.); (S.V.K.); Tel.: +1-814-574-9852 (K.J.V.); +1-814-865-9788 (V.K.); +1-814-863-4436 (S.V.K.)
| | - Michele Yon
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Santhamani Ramasamy
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Saranya Amirthalingam
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | | | - Ruth H. Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Shubhada K. Chothe
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Padmaja Jakka
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Lindsey LaBella
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Nicole Levine
- Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA
| | - Sophie Rodriguez
- Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA
| | - Chen Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Tod Stuber
- National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture, Ames, IA 50010, USA
| | | | | | | | - Richard Simon
- City of New York Parks & Recreation, New York, NY 10029, USA
| | - Katrina L. Toal
- City of New York Parks & Recreation, New York, NY 10029, USA
| | - Randall J. Olsen
- Laboratory of Molecular and Translational Human Infectious Disease Research, Center for Infectious Diseases, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute and Houston Methodist Hospital, Houston, TX 77030, USA
- Departments of Pathology and Laboratory Medicine and Microbiology and Immunology, Weill Cornell Medical College, New York, NY 10021, USA
| | - James J. Davis
- Consortium for Advanced Science and Engineering, University of Chicago, Chicago, IL 60637, USA
- Division of Data Science and Learning, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Dashzeveg Bold
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - Natasha N. Gaudreault
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - Krishani Dinali Perera
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - Yunjeong Kim
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - Kyeong-Ok Chang
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - Costas D. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Juergen A. Richt
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA
| | - James M. Musser
- Laboratory of Molecular and Translational Human Infectious Disease Research, Center for Infectious Diseases, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute and Houston Methodist Hospital, Houston, TX 77030, USA
- Departments of Pathology and Laboratory Medicine and Microbiology and Immunology, Weill Cornell Medical College, New York, NY 10021, USA
| | - Peter J. Hudson
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
- The Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Vivek Kapur
- The Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA
- Correspondence: (K.J.V.); (V.K.); (S.V.K.); Tel.: +1-814-574-9852 (K.J.V.); +1-814-865-9788 (V.K.); +1-814-863-4436 (S.V.K.)
| | - Suresh V. Kuchipudi
- The Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Correspondence: (K.J.V.); (V.K.); (S.V.K.); Tel.: +1-814-574-9852 (K.J.V.); +1-814-865-9788 (V.K.); +1-814-863-4436 (S.V.K.)
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6
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Vishweshwaraiah YL, Hnath B, Rackley B, Wang J, Gontu A, Chandler M, Afonin KA, Kuchipudi SV, Christensen N, Yennawar NH, Dokholyan NV. Adaptation-proof SARS-CoV-2 vaccine design. Adv Funct Mater 2022; 32:2206055. [PMID: 36590650 PMCID: PMC9799234 DOI: 10.1002/adfm.202206055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) surface spike glycoprotein - a major antibody target - is critical for virus entry via engagement of human angiotensin-converting enzyme 2 (ACE2) receptor. Despite successes with existing vaccines and therapies that primarily target the receptor binding domain (RBD) of the spike protein, the susceptibility of RBD to mutations provides escape routes for the SARS-CoV-2 from neutralizing antibodies. On the other hand, structural conservation in the spike protein can be targeted to reduce escape mutations and achieve broad protection. Here, we designed candidate stable immunogens that mimic surface features of selected conserved regions of spike protein through 'epitope grafting,' in which we present the target epitope topology on diverse heterologous scaffolds that can structurally accommodate the spike epitopes. Structural characterization of the epitope-scaffolds showed stark agreement with our computational models and target epitopes. The sera from mice immunized with engineered designs display epitope-scaffolds and spike binding activity. We also demonstrated the utility of the designed epitope-scaffolds in diagnostic applications. Taken all together, our study provides important methodology for targeting the conserved, non-RBD structural motifs of spike protein for SARS-CoV-2 epitope vaccine design and demonstrates the potential utility of 'epitope grafting' in rational vaccine design.
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Affiliation(s)
| | - Brianna Hnath
- Department of PharmacologyPenn State College of MedicineHersheyPA17033‐0850USA
| | - Brendan Rackley
- Department of PharmacologyPenn State College of MedicineHersheyPA17033‐0850USA
| | - Jian Wang
- Department of PharmacologyPenn State College of MedicineHersheyPA17033‐0850USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences and The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Morgan Chandler
- Department of ChemistryUniversity of North Carolina at CharlotteCharlotteNC28223USA
| | - Kirill A. Afonin
- Department of ChemistryUniversity of North Carolina at CharlotteCharlotteNC28223USA
| | - Suresh V. Kuchipudi
- Department of Veterinary and Biomedical Sciences and The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Neil Christensen
- Department of Microbiology and ImmunologyPenn State College of MedicineHersheyPA17033‐0850USA
| | - Neela H. Yennawar
- The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Nikolay V. Dokholyan
- Department of PharmacologyPenn State College of MedicineHersheyPA17033‐0850USA
- Department of Biochemistry & Molecular BiologyPenn State College of MedicineHersheyPA17033‐0850USA
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7
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Gontu A, Marlin EA, Ramasamy S, Neerukonda S, Anil G, Morgan J, Quraishi M, Chen C, Boorla VS, Nissly RH, Jakka P, Chothe SK, Ravichandran A, Kodali N, Amirthalingam S, LaBella L, Kelly K, Natesan P, Minns AM, Rossi RM, Werner JR, Hovingh E, Lindner SE, Tewari D, Kapur V, Vandegrift KJ, Maranas CD, Surendran Nair M, Kuchipudi SV. Development and Validation of Indirect Enzyme-Linked Immunosorbent Assays for Detecting Antibodies to SARS-CoV-2 in Cattle, Swine, and Chicken. Viruses 2022; 14:v14071358. [PMID: 35891340 PMCID: PMC9317974 DOI: 10.3390/v14071358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 02/04/2023] Open
Abstract
Multiple domestic and wild animal species are susceptible to SARS-CoV-2 infection. Cattle and swine are susceptible to experimental SARS-CoV-2 infection. The unchecked transmission of SARS-CoV-2 in animal hosts could lead to virus adaptation and the emergence of novel variants. In addition, the spillover and subsequent adaptation of SARS-CoV-2 in livestock could significantly impact food security as well as animal and public health. Therefore, it is essential to monitor livestock species for SARS-CoV-2 spillover. We developed and optimized species-specific indirect ELISAs (iELISAs) to detect anti-SARS-CoV-2 antibodies in cattle, swine, and chickens using the spike protein receptor-binding domain (RBD) antigen. Serum samples collected prior to the COVID-19 pandemic were used to determine the cut-off threshold. RBD hyperimmunized sera from cattle (n = 3), swine (n = 6), and chicken (n = 3) were used as the positive controls. The iELISAs were evaluated compared to a live virus neutralization test using cattle (n = 150), swine (n = 150), and chicken (n = 150) serum samples collected during the COVID-19 pandemic. The iELISAs for cattle, swine, and chicken were found to have 100% sensitivity and specificity. These tools facilitate the surveillance that is necessary to quickly identify spillovers into the three most important agricultural species worldwide.
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Affiliation(s)
- Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
| | - Erika A. Marlin
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Clinical & Diagnostic Assay Development Group, Pfizer, Pearl River, NY 10965, USA
| | - Santhamani Ramasamy
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | | | - Gayatri Anil
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Jasmine Morgan
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Meysoon Quraishi
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Chen Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA; (C.C.); (V.S.B.); (C.D.M.)
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA; (C.C.); (V.S.B.); (C.D.M.)
| | - Ruth H. Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
| | - Padmaja Jakka
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
| | - Shubhada K. Chothe
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Abirami Ravichandran
- Department of Integrative and Biomedical Physiology, The Pennsylvania State University, University Park, PA 16802, USA;
| | - Nishitha Kodali
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
| | - Saranya Amirthalingam
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
| | - Lindsey LaBella
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Kathleen Kelly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
| | - Pazhanivel Natesan
- Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai 600007, India;
| | - Allen M. Minns
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Randall M. Rossi
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
| | - Jacob R. Werner
- Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA;
| | - Ernest Hovingh
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
| | - Scott E. Lindner
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Deepanker Tewari
- Pennsylvania Department of Agriculture, Pennsylvania Veterinary Laboratory, Harrisburg, PA 17110, USA;
| | - Vivek Kapur
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
- Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA;
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kurt J. Vandegrift
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Costas D. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA; (C.C.); (V.S.B.); (C.D.M.)
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
- Correspondence: (M.S.N.); (S.V.K.)
| | - Suresh V. Kuchipudi
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.G.); (E.A.M.); (S.R.); (G.A.); (J.M.); (M.Q.); (P.J.); (S.K.C.); (N.K.); (S.A.); (L.L.); (E.H.)
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (K.K.)
- Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (A.M.M.); (R.M.R.); (S.E.L.); (V.K.); (K.J.V.)
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802, USA
- Correspondence: (M.S.N.); (S.V.K.)
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8
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Arnold CRK, Srinivasan S, Rodriguez S, Rydzak N, Herzog CM, Gontu A, Bharti N, Small M, Rogers CJ, Schade MM, Kuchipudi SV, Kapur V, Read AF, Ferrari MJ. A longitudinal study of the impact of university student return to campus on the SARS-CoV-2 seroprevalence among the community members. Sci Rep 2022; 12:8586. [PMID: 35597780 PMCID: PMC9124192 DOI: 10.1038/s41598-022-12499-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 05/04/2022] [Indexed: 12/02/2022] Open
Abstract
Returning university students represent large-scale, transient demographic shifts and a potential source of transmission to adjacent communities during the COVID-19 pandemic. In this prospective longitudinal cohort study, we tested for IgG antibodies against SARS-CoV-2 in a non-random cohort of residents living in Centre County prior to the Fall 2020 term at the Pennsylvania State University and following the conclusion of the Fall 2020 term. We also report the seroprevalence in a non-random cohort of students collected at the end of the Fall 2020 term. Of 1313 community participants, 42 (3.2%) were positive for SARS-CoV-2 IgG antibodies at their first visit between 07 August and 02 October 2020. Of 684 student participants who returned to campus for fall instruction, 208 (30.4%) were positive for SARS-CoV-2 antibodies between 26 October and 21 December. 96 (7.3%) community participants returned a positive IgG antibody result by 19 February. Only contact with known SARS-CoV-2-positive individuals and attendance at small gatherings (20-50 individuals) were significant predictors of detecting IgG antibodies among returning students (aOR, 95% CI 3.1, 2.07-4.64; 1.52, 1.03-2.24; respectively). Despite high seroprevalence observed within the student population, seroprevalence in a longitudinal cohort of community residents was low and stable from before student arrival for the Fall 2020 term to after student departure. The study implies that heterogeneity in SARS-CoV-2 transmission can occur in geographically coincident populations.
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Affiliation(s)
- Callum R K Arnold
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA.
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA.
| | - Sreenidhi Srinivasan
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Sophie Rodriguez
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Natalie Rydzak
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Catherine M Herzog
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Nita Bharti
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Meg Small
- College of Health and Human Development, Pennsylvania State University, University Park, PA, 16802, USA
- Social Science Research Institute, Pennsylvania State University, University Park, PA, 16802, USA
| | - Connie J Rogers
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Margeaux M Schade
- College of Health and Human Development, Pennsylvania State University, University Park, PA, 16802, USA
| | - Suresh V Kuchipudi
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Vivek Kapur
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
- Department of Animal Science, Pennsylvania State University, University Park, PA, 16802, USA
| | - Andrew F Read
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Matthew J Ferrari
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA.
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA.
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9
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Vishweshwaraiah YL, Hnath B, Rackley B, Wang J, Gontu A, Chandler M, Afonin KA, Kuchipudi SV, Christensen N, Yennawar NH, Dokholyan NV. Adaptation-proof SARS-CoV-2 vaccine design. bioRxiv 2022:2022.05.17.492310. [PMID: 35611332 PMCID: PMC9128779 DOI: 10.1101/2022.05.17.492310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) surface spike glycoprotein - a major antibody target - is critical for virus entry via engagement of human angiotensin-converting enzyme 2 (ACE2) receptor. Despite successes with existing vaccines and therapies that primarily target the receptor binding domain (RBD) of the spike protein, the susceptibility of RBD to mutations provides escape routes for the SARS-CoV-2 from neutralizing antibodies. On the other hand, structural conservation in the spike protein can be targeted to reduce escape mutations and achieve broad protection. Here, we designed candidate stable immunogens that mimic surface features of selected conserved regions of spike protein through 'epitope grafting,' in which we present the target epitope topology on diverse heterologous scaffolds that can structurally accommodate the spike epitopes. Structural characterization of the epitope-scaffolds showed stark agreement with our computational models and target epitopes. The sera from mice immunized with engineered designs display epitope-scaffolds and spike binding activity. We also demonstrated the utility of the designed epitope-scaffolds in diagnostic applications. Taken all together, our study provides important methodology for targeting the conserved, non-RBD structural motifs of spike protein for SARS-CoV-2 epitope vaccine design and demonstrates the potential utility of 'epitope grafting' in rational vaccine design.
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10
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Chen C, Boorla VS, Chowdhury R, Nissly RH, Gontu A, Chothe SK, LaBella L, Jakka P, Ramasamy S, Vandegrift KJ, Nair MS, Kuchipudi SV, Maranas CD. A CNN model for predicting binding affinity changes between SARS-CoV-2 spike RBD variants and ACE2 homologues. bioRxiv 2022:2022.03.22.485413. [PMID: 35350198 PMCID: PMC8963690 DOI: 10.1101/2022.03.22.485413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The cellular entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) involves the association of its receptor binding domain (RBD) with human angiotensin converting enzyme 2 (hACE2) as the first crucial step. Efficient and reliable prediction of RBD-hACE2 binding affinity changes upon amino acid substitutions can be valuable for public health surveillance and monitoring potential spillover and adaptation into non-human species. Here, we introduce a convolutional neural network (CNN) model trained on protein sequence and structural features to predict experimental RBD-hACE2 binding affinities of 8,440 variants upon single and multiple amino acid substitutions in the RBD or ACE2. The model achieves a classification accuracy of 83.28% and a Pearson correlation coefficient of 0.85 between predicted and experimentally calculated binding affinities in five-fold cross-validation tests and predicts improved binding affinity for most circulating variants. We pro-actively used the CNN model to exhaustively screen for novel RBD variants with combinations of up to four single amino acid substitutions and suggested candidates with the highest improvements in RBD-ACE2 binding affinity for human and animal ACE2 receptors. We found that the binding affinity of RBD variants against animal ACE2s follows similar trends as those against human ACE2. White-tailed deer ACE2 binds to RBD almost as tightly as human ACE2 while cattle, pig, and chicken ACE2s bind weakly. The model allows testing whether adaptation of the virus for increased binding with other animals would cause concomitant increases in binding with hACE2 or decreased fitness due to adaptation to other hosts.
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Affiliation(s)
- Chen Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ratul Chowdhury
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ruth H. Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Shubhada K. Chothe
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Lindsey LaBella
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Padmaja Jakka
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Santhamani Ramasamy
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kurt J. Vandegrift
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Costas D. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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11
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Vandegrift KJ, Yon M, Surendran-Nair M, Gontu A, Amirthalingam S, Nissly RH, Levine N, Stuber T, DeNicola AJ, Boulanger JR, Kotschwar N, Aucoin SG, Simon R, Toal K, Olsen RJ, Davis JJ, Bold D, Gaudreault NN, Richt JA, Musser JM, Hudson PJ, Kapur V, Kuchipudi SV. Detection of SARS-CoV-2 Omicron variant (B.1.1.529) infection of white-tailed deer. bioRxiv 2022:2022.02.04.479189. [PMID: 35169802 PMCID: PMC8845426 DOI: 10.1101/2022.02.04.479189] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
White-tailed deer ( Odocoileus virginianus ) are highly susceptible to infection by SARS-CoV-2, with multiple reports of widespread spillover of virus from humans to free-living deer. While the recently emerged SARS-CoV-2 B.1.1.529 Omicron variant of concern (VoC) has been shown to be notably more transmissible amongst humans, its ability to cause infection and spillover to non-human animals remains a challenge of concern. We found that 19 of the 131 (14.5%; 95% CI: 0.10-0.22) white-tailed deer opportunistically sampled on Staten Island, New York, between December 12, 2021, and January 31, 2022, were positive for SARS-CoV-2 specific serum antibodies using a surrogate virus neutralization assay, indicating prior exposure. The results also revealed strong evidence of age-dependence in antibody prevalence. A significantly (χ 2 , p < 0.001) greater proportion of yearling deer possessed neutralizing antibodies as compared with fawns (OR=12.7; 95% CI 4-37.5). Importantly, SARS-CoV-2 nucleic acid was detected in nasal swabs from seven of 68 (10.29%; 95% CI: 0.0-0.20) of the sampled deer, and whole-genome sequencing identified the SARS-CoV-2 Omicron VoC (B.1.1.529) is circulating amongst the white-tailed deer on Staten Island. Phylogenetic analyses revealed the deer Omicron sequences clustered closely with other, recently reported Omicron sequences recovered from infected humans in New York City and elsewhere, consistent with human to deer spillover. Interestingly, one individual deer was positive for viral RNA and had a high level of neutralizing antibodies, suggesting either rapid serological conversion during an ongoing infection or a "breakthrough" infection in a previously exposed animal. Together, our findings show that the SARS-CoV-2 B.1.1.529 Omicron VoC can infect white-tailed deer and highlights an urgent need for comprehensive surveillance of susceptible animal species to identify ecological transmission networks and better assess the potential risks of spillback to humans. KEY FINDINGS These studies provide strong evidence of infection of free-living white-tailed deer with the SARS-CoV-2 B.1.1.529 Omicron variant of concern on Staten Island, New York, and highlight an urgent need for investigations on human-to-animal-to-human spillovers/spillbacks as well as on better defining the expanding host-range of SARS-CoV-2 in non-human animals and the environment.
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Affiliation(s)
- Kurt J. Vandegrift
- The Center for Infectious Disease Dynamics, Department of Biology and Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Michele Yon
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
| | - Meera Surendran-Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
| | - Saranya Amirthalingam
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
| | - Ruth H. Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
| | - Nicole Levine
- Department of Animal Science and Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Tod Stuber
- National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture, Ames, Iowa, USA
| | | | | | | | - Sarah Grimké Aucoin
- City of New York Parks & Recreation, 1234 5 Avenue, 5 Floor, New York, NY 10029, USA
| | - Richard Simon
- City of New York Parks & Recreation, 1234 5 Avenue, 5 Floor, New York, NY 10029, USA
| | - Katrina Toal
- City of New York Parks & Recreation, 1234 5 Avenue, 5 Floor, New York, NY 10029, USA
| | - Randall J. Olsen
- Laboratory of Molecular and Translational Human Infectious Disease Research, Center for Infectious Diseases, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute and Houston Methodist Hospital, Houston, TX 77030, USA
- Departments of Pathology and Laboratory Medicine and Microbiology and Immunology, Weill Cornell Medical College, NY 10021, USA
| | - James J. Davis
- University of Chicago Consortium for Advanced Science and Engineering, University of Chicago and Division of Data Science and Learning, Argonne National Laboratory, Argonne, Illinois, USA
| | - Dashzeveg Bold
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA
| | - Natasha N. Gaudreault
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA
| | - Juergen A. Richt
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA
| | - James M. Musser
- Laboratory of Molecular and Translational Human Infectious Disease Research, Center for Infectious Diseases, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute and Houston Methodist Hospital, Houston, TX 77030, USA
- Departments of Pathology and Laboratory Medicine and Microbiology and Immunology, Weill Cornell Medical College, NY 10021, USA
| | - Peter J. Hudson
- The Center for Infectious Disease Dynamics, Department of Biology and Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Vivek Kapur
- Department of Animal Science and Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences and Huck Institutes of the Life Sciences, The Pennsylvania State University, PA,16802, USA
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12
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Chen C, Boorla VS, Banerjee D, Chowdhury R, Cavener VS, Nissly RH, Gontu A, Boyle NR, Vandegrift K, Nair MS, Kuchipudi SV, Maranas CD. Computational prediction of the effect of amino acid changes on the binding affinity between SARS-CoV-2 spike RBD and human ACE2. Proc Natl Acad Sci U S A 2021; 118:e2106480118. [PMID: 34588290 PMCID: PMC8594574 DOI: 10.1073/pnas.2106480118] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 01/22/2023] Open
Abstract
The association of the receptor binding domain (RBD) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein with human angiotensin-converting enzyme 2 (hACE2) represents the first required step for cellular entry. SARS-CoV-2 has continued to evolve with the emergence of several novel variants, and amino acid changes in the RBD have been implicated with increased fitness and potential for immune evasion. Reliably predicting the effect of amino acid changes on the ability of the RBD to interact more strongly with the hACE2 can help assess the implications for public health and the potential for spillover and adaptation into other animals. Here, we introduce a two-step framework that first relies on 48 independent 4-ns molecular dynamics (MD) trajectories of RBD-hACE2 variants to collect binding energy terms decomposed into Coulombic, covalent, van der Waals, lipophilic, generalized Born solvation, hydrogen bonding, π-π packing, and self-contact correction terms. The second step implements a neural network to classify and quantitatively predict binding affinity changes using the decomposed energy terms as descriptors. The computational base achieves a validation accuracy of 82.8% for classifying single-amino acid substitution variants of the RBD as worsening or improving binding affinity for hACE2 and a correlation coefficient of 0.73 between predicted and experimentally calculated changes in binding affinities. Both metrics are calculated using a fivefold cross-validation test. Our method thus sets up a framework for screening binding affinity changes caused by unknown single- and multiple-amino acid changes offering a valuable tool to predict host adaptation of SARS-CoV-2 variants toward tighter hACE2 binding.
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Affiliation(s)
- Chen Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802
| | - Deepro Banerjee
- The Bioinformatics and Genomics Program, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Ratul Chowdhury
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802
| | - Victoria S Cavener
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Ruth H Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Nina R Boyle
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Kurt Vandegrift
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
| | - Suresh V Kuchipudi
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802;
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802
| | - Costas D Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802;
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13
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Kumar R, Christensen ND, Kaddis Maldonado RJ, Bewley MC, Ostman A, Sudol M, Chen EC, Buchkovich NW, Gontu A, Surendran Nair M, Nissly RH, Minns AM, Kapur V, Rossi R, Kuchipudi SV, Lindner SE, Parent LJ, Flanagan JM, Buchkovich NJ. Monoclonal Antibodies to S and N SARS-CoV-2 Proteins as Probes to Assess Structural and Antigenic Properties of Coronaviruses. Viruses 2021; 13:v13101899. [PMID: 34696329 PMCID: PMC8537396 DOI: 10.3390/v13101899] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/08/2021] [Accepted: 09/17/2021] [Indexed: 01/18/2023] Open
Abstract
Antibodies targeting the spike (S) and nucleocapsid (N) proteins of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are essential tools. In addition to important roles in the treatment and diagnosis of infection, the availability of high-quality specific antibodies for the S and N proteins is essential to facilitate basic research of virus replication and in the characterization of mutations responsible for variants of concern. We have developed panels of mouse and rabbit monoclonal antibodies (mAbs) to the SARS-CoV-2 spike receptor-binding domain (S-RBD) and N protein for functional and antigenic analyses. The mAbs to the S-RBD were tested for neutralization of native SARS-CoV-2, with several exhibiting neutralizing activity. The panels of mAbs to the N protein were assessed for cross-reactivity with the SARS-CoV and Middle East respiratory syndrome (MERS)-CoV N proteins and could be subdivided into sets that showed unique specificity for SARS-CoV-2 N protein, cross-reactivity between SARS-CoV-2 and SARS-CoV N proteins only, or cross-reactivity to all three coronavirus N proteins tested. Partial mapping of N-reactive mAbs were conducted using truncated fragments of the SARS-CoV-2 N protein and revealed near complete coverage of the N protein. Collectively, these sets of mouse and rabbit monoclonal antibodies can be used to examine structure/function studies for N proteins and to define the surface location of virus neutralizing epitopes on the RBD of the S protein.
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Affiliation(s)
- Rinki Kumar
- Department of Microbiology & Immunology, Penn State College of Medicine, Hershey, PA 17033, USA; (R.K.); (A.O.); (N.W.B.); (L.J.P.)
| | - Neil D. Christensen
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Correspondence: (N.D.C.); (N.J.B.)
| | - Rebecca J. Kaddis Maldonado
- Department of Medicine, Penn State College of Medicine, Hershey, PA 17033, USA; (R.J.K.M.); (M.S.); (E.C.C.)
| | - Maria C. Bewley
- Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, PA 17033, USA;
| | - Alexandria Ostman
- Department of Microbiology & Immunology, Penn State College of Medicine, Hershey, PA 17033, USA; (R.K.); (A.O.); (N.W.B.); (L.J.P.)
| | - Malgorzata Sudol
- Department of Medicine, Penn State College of Medicine, Hershey, PA 17033, USA; (R.J.K.M.); (M.S.); (E.C.C.)
| | - Eunice C. Chen
- Department of Medicine, Penn State College of Medicine, Hershey, PA 17033, USA; (R.J.K.M.); (M.S.); (E.C.C.)
| | - Natalie W. Buchkovich
- Department of Microbiology & Immunology, Penn State College of Medicine, Hershey, PA 17033, USA; (R.K.); (A.O.); (N.W.B.); (L.J.P.)
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA; (A.G.); (M.S.N.)
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA; (A.G.); (M.S.N.)
| | - Ruth H. Nissly
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA; (A.G.); (M.S.N.)
| | - Allen M. Minns
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Animal Science, Penn State University, University Park, PA 16802, USA
| | - Vivek Kapur
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Animal Science, Penn State University, University Park, PA 16802, USA
| | - Randall Rossi
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
| | - Suresh V. Kuchipudi
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA; (A.G.); (M.S.N.)
| | - Scott E. Lindner
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Biochemistry and Molecular Biology, Penn State University, University Park, PA 16802, USA
| | - Leslie J. Parent
- Department of Microbiology & Immunology, Penn State College of Medicine, Hershey, PA 17033, USA; (R.K.); (A.O.); (N.W.B.); (L.J.P.)
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Medicine, Penn State College of Medicine, Hershey, PA 17033, USA; (R.J.K.M.); (M.S.); (E.C.C.)
| | - John M. Flanagan
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA; (R.H.N.); (A.M.M.); (V.K.); (R.R.); (S.V.K.); (S.E.L.); (J.M.F.)
- Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, PA 17033, USA;
| | - Nicholas J. Buchkovich
- Department of Microbiology & Immunology, Penn State College of Medicine, Hershey, PA 17033, USA; (R.K.); (A.O.); (N.W.B.); (L.J.P.)
- Correspondence: (N.D.C.); (N.J.B.)
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14
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Arnold CR, Srinivasan S, Rodriguez S, Rydzak N, Herzog CM, Gontu A, Bharti N, Small M, Rogers CJ, Schade MM, Kuchipudi SV, Kapur V, Read A, Ferrari MJ. SARS-CoV-2 Seroprevalence in a University Community: A Longitudinal Study of the Impact of Student Return to Campus on Infection Risk Among Community Members. medRxiv 2021:2021.02.17.21251942. [PMID: 33619497 PMCID: PMC7899462 DOI: 10.1101/2021.02.17.21251942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Returning university students represent large-scale, transient demographic shifts and a potential source of transmission to adjacent communities during the COVID-19 pandemic. METHODS In this prospective longitudinal cohort study, we tested for IgG antibodies against SARS-CoV-2 in a non-random cohort of residents living in Centre County prior to the Fall 2020 term at the Pennsylvania State University and following the conclusion of the Fall 2020 term. We also report the seroprevalence in a non-random cohort of students collected at the end of the Fall 2020 term. RESULTS Of 1313 community participants, 42 (3.2%) were positive for SARS-CoV-2 IgG antibodies at their first visit between 07 August and 02 October 2020. Of 684 student participants who returned to campus for fall instruction, 208 (30.4%) were positive for SARS-CoV-2 antibodies between 26 October and 21 December. 96 (7.3%) community participants returned a positive IgG antibody result by 19 February. Only contact with known SARS-CoV-2-positive individuals and attendance at small gatherings (20-50 individuals) were significant predictors of detecting IgG antibodies among returning students (aOR, 95% CI: 3.1, 2.07-4.64; 1.52, 1.03-2.24; respectively). CONCLUSIONS Despite high seroprevalence observed within the student population, seroprevalence in a longitudinal cohort of community residents was low and stable from before student arrival for the Fall 2020 term to after student departure. The study implies that heterogeneity in SARS-CoV-2 transmission can occur in geographically coincident populations.
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Affiliation(s)
- Callum R.K. Arnold
- Department of Biology, Pennsylvania State University, University Park, PA, USA 16802
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
| | - Sreenidhi Srinivasan
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Sophie Rodriguez
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Natalie Rydzak
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Catherine M. Herzog
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Nita Bharti
- Department of Biology, Pennsylvania State University, University Park, PA, USA 16802
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
| | - Meg Small
- College of Health and Human Development, Pennsylvania State University, University Park, PA, USA 16802
- Social Science Research Institute, Pennsylvania State University, University Park, PA, USA 16802
| | - Connie J. Rogers
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Margeaux M. Schade
- Social Science Research Institute, Pennsylvania State University, University Park, PA, USA 16802
| | - Suresh V Kuchipudi
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Vivek Kapur
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA 16802
- Department of Animal Science, Pennsylvania State University, University Park, PA, USA 16802
| | - Andrew Read
- Department of Biology, Pennsylvania State University, University Park, PA, USA 16802
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA 16802
| | - Matthew J. Ferrari
- Department of Biology, Pennsylvania State University, University Park, PA, USA 16802
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, USA 16802
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15
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Goike J, Hsieh CL, Horton A, Gardner EC, Bartzoka F, Wang N, Javanmardi K, Herbert A, Abbassi S, Renberg R, Johanson MJ, Cardona JA, Segall-Shapiro T, Zhou L, Nissly RH, Gontu A, Byrom M, Maranhao AC, Battenhouse AM, Gejji V, Soto-Sierra L, Foster ER, Woodard SL, Nikolov ZL, Lavinder J, Voss WN, Annapareddy A, Ippolito GC, Ellington AD, Marcotte EM, Finkelstein IJ, Hughes RA, Musser JM, Kuchipudi SV, Kapur V, Georgiou G, Dye JM, Boutz DR, McLellan JS, Gollihar JD. Synthetic repertoires derived from convalescent COVID-19 patients enable discovery of SARS-CoV-2 neutralizing antibodies and a novel quaternary binding modality. bioRxiv 2021:2021.04.07.438849. [PMID: 33851158 PMCID: PMC8043448 DOI: 10.1101/2021.04.07.438849] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The ongoing evolution of SARS-CoV-2 into more easily transmissible and infectious variants has sparked concern over the continued effectiveness of existing therapeutic antibodies and vaccines. Hence, together with increased genomic surveillance, methods to rapidly develop and assess effective interventions are critically needed. Here we report the discovery of SARS-CoV-2 neutralizing antibodies isolated from COVID-19 patients using a high-throughput platform. Antibodies were identified from unpaired donor B-cell and serum repertoires using yeast surface display, proteomics, and public light chain screening. Cryo-EM and functional characterization of the antibodies identified N3-1, an antibody that binds avidly (Kd,app = 68 pM) to the receptor binding domain (RBD) of the spike protein and robustly neutralizes the virus in vitro. This antibody likely binds all three RBDs of the trimeric spike protein with a single IgG. Importantly, N3-1 equivalently binds spike proteins from emerging SARS-CoV-2 variants of concern, neutralizes UK variant B.1.1.7, and binds SARS-CoV spike with nanomolar affinity. Taken together, the strategies described herein will prove broadly applicable in interrogating adaptive immunity and developing rapid response biological countermeasures to emerging pathogens.
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Affiliation(s)
- Jule Goike
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Ching-Lin Hsieh
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Andrew Horton
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Elizabeth C. Gardner
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Foteini Bartzoka
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Nianshuang Wang
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Kamyab Javanmardi
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Andrew Herbert
- U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Shawn Abbassi
- U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Rebecca Renberg
- CCDC Army Research Laboratory, Biotechnology Branch, Adelphi, MD, USA
| | - Michael J. Johanson
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
| | - Jose A. Cardona
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | | | - Ling Zhou
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Ruth H. Nissly
- Department of Veterinary and Biomedical Science and Animal Diagnostic Laboratory, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Science and Animal Diagnostic Laboratory, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Michelle Byrom
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Andre C. Maranhao
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Anna M. Battenhouse
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Varun Gejji
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
| | - Laura Soto-Sierra
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
- Department of Agricultural and Biological Engineering, Texas A&M University, College Station, TX, USA
| | - Emma R. Foster
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
- Department of Agricultural and Biological Engineering, Texas A&M University, College Station, TX, USA
| | - Susan L. Woodard
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
| | - Zivko L. Nikolov
- National Center for Therapeutics Manufacturing, Texas A&M University, College Station, TX, USA
- Department of Agricultural and Biological Engineering, Texas A&M University, College Station, TX, USA
| | - Jason Lavinder
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Will N. Voss
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Ankur Annapareddy
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- CCDC Army Research Laboratory-South, Austin, TX, USA
| | - Gregory C. Ippolito
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Andrew D. Ellington
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Chemistry, The University of Texas at Austin, Austin, TX, USA
| | - Edward M. Marcotte
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Ilya J. Finkelstein
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Randall A. Hughes
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- CCDC Army Research Laboratory-South, Austin, TX, USA
| | - James M. Musser
- Center for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA
| | - Suresh V. Kuchipudi
- Department of Veterinary and Biomedical Science and Animal Diagnostic Laboratory, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Vivek Kapur
- Department of Animal Science and the Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - George Georgiou
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
- Department of Chemistry, The University of Texas at Austin, Austin, TX, USA
- Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - John M. Dye
- U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Daniel R. Boutz
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- CCDC Army Research Laboratory-South, Austin, TX, USA
| | - Jason S. McLellan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Jimmy D. Gollihar
- Center for Systems and Synthetic Biology, Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
- CCDC Army Research Laboratory-South, Austin, TX, USA
- Center for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA
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Kuchipudi SV, Surendran Nair M, Yon M, Gontu A, Nissly RH, Barry R, Greenawalt D, Pierre T, Li L, Thirumalapura N, Tewari D, Jayarao B. A Novel Real-Time PCR Assay for the Rapid Detection of Virulent Streptococcus equi Subspecies zooepidemicus-An Emerging Pathogen of Swine. Front Vet Sci 2021; 8:604675. [PMID: 33644143 PMCID: PMC7907462 DOI: 10.3389/fvets.2021.604675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/20/2021] [Indexed: 12/03/2022] Open
Abstract
Streptococcus equi subspecies zooepidemicus, a zoonotic bacterial pathogen caused a series of outbreaks with high mortality affecting swine herds in multiple locations of the USA and Canada in 2019. Further genetic analysis revealed that this agent clustered with ATCC 35246, a S. zooepidemicus strain associated with high mortality outbreaks in swine herds of China originally reported in 1977. Rapid and accurate diagnosis is absolutely critical for controlling and limiting further spread of this emerging disease of swine. Currently available diagnostic methods including bacteriological examination and PCR assays do not distinguish between the virulent strains and avirulent commensal strains of S. zooepidemicus, which is critical given that this pathogen is a normal inhabitant of the swine respiratory tract. Based on comparative analyses of whole genome sequences of the virulent isolates and avirulent sequences, we identified a region in the SzM gene that is highly conserved and restricted to virulent S. zooepidemicus strains. We developed and validated a novel probe-based real-time PCR targeting the conserved region of SzM. The assay was highly sensitive and specific to the virulent swine isolates of Streptococcus equi subspecies zooepidemicus. No cross reactivity was observed with avirulent S. zooepidemicus isolates as well as other streptococcal species and a panel of porcine respiratory bacterial and viral pathogens. The PCR efficiency of the assay was 96.64 % and was able to detect as little as 20 fg of the bacterial DNA. We then validated the diagnostic sensitivity and specificity of the new PCR assay using a panel of clinical samples (n = 57) and found that the assay has 100% sensitivity and specificity as compared to bacteriological culture method. In summary, the PCR assay will be an extremely valuable tool for the rapid accurate detection of virulent swine S. zooepidemicus isolates and directly from clinical samples.
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Affiliation(s)
- Suresh V Kuchipudi
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States.,Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, United States
| | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Michele Yon
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Ruth H Nissly
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Rhiannon Barry
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Denver Greenawalt
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Traci Pierre
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | - Lingling Li
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
| | | | - Deepanker Tewari
- Pennsylvania Veterinary Laboratory, Harrisburg, PA, United States
| | - Bhushan Jayarao
- Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, PA, United States
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Salazar E, Kuchipudi SV, Christensen PA, Eagar T, Yi X, Zhao P, Jin Z, Long SW, Olsen RJ, Chen J, Castillo B, Leveque C, Towers D, Lavinder J, Gollihar J, Cardona J, Ippolito G, Nissly R, Bird I, Greenawalt D, Rossi RM, Gontu A, Srinivasan S, Poojary I, Cattadori IM, Hudson PJ, Josleyn NM, Prugar L, Huie K, Herbert A, Bernard DW, Dye JM, Kapur V, Musser JM. Convalescent plasma anti-SARS-CoV-2 spike protein ectodomain and receptor-binding domain IgG correlate with virus neutralization. J Clin Invest 2020; 130:6728-6738. [PMID: 32910806 PMCID: PMC7685744 DOI: 10.1172/jci141206] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022] Open
Abstract
The newly emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) highlights the urgent need for assays that detect protective levels of neutralizing antibodies. We studied the relationship among anti-spike ectodomain (anti-ECD), anti-receptor-binding domain (anti-RBD) IgG titers, and SARS-CoV-2 virus neutralization (VN) titers generated by 2 in vitro assays using convalescent plasma samples from 68 patients with COVID-19. We report a strong positive correlation between both plasma anti-RBD and anti-ECD IgG titers and in vitro VN titers. The probability of a VN titer of ≥160, the FDA-recommended level for convalescent plasma used for COVID-19 treatment, was ≥80% when anti-RBD or anti-ECD titers were ≥1:1350. Of all donors, 37% lacked VN titers of ≥160. Dyspnea, hospitalization, and disease severity were significantly associated with higher VN titer. Frequent donation of convalescent plasma did not significantly decrease VN or IgG titers. Analysis of 2814 asymptomatic adults found 73 individuals with anti-ECD IgG titers of ≥1:50 and strong positive correlation with anti-RBD and VN titers. Fourteen of these individuals had VN titers of ≥1:160, and all of them had anti-RBD titers of ≥1:1350. We conclude that anti-RBD or anti-ECD IgG titers can serve as a surrogate for VN titers to identify suitable plasma donors. Plasma anti-RBD or anti-ECD titers of ≥1:1350 may provide critical information about protection against COVID-19 disease.
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Affiliation(s)
- Eric Salazar
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Suresh V. Kuchipudi
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, and
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Paul A. Christensen
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
| | - Todd Eagar
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Xin Yi
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Picheng Zhao
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
| | - Zhicheng Jin
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
| | - S. Wesley Long
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
- Center for Molecular and Translational Human Infectious Diseases, Houston Methodist Research Institute, Houston, Texas, USA
| | - Randall J. Olsen
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
- Center for Molecular and Translational Human Infectious Diseases, Houston Methodist Research Institute, Houston, Texas, USA
| | - Jian Chen
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Brian Castillo
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Christopher Leveque
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Dalton Towers
- Department of Molecular Biosciences, University of Texas at Austin, Austin, Texas, USA
| | - Jason Lavinder
- Department of Molecular Biosciences, University of Texas at Austin, Austin, Texas, USA
| | - Jimmy Gollihar
- Combat Capabilities Development Command Army Research Laboratory — South, University of Texas, Austin, Texas, USA
| | - Jose Cardona
- Combat Capabilities Development Command Army Research Laboratory — South, University of Texas, Austin, Texas, USA
| | - Gregory Ippolito
- Department of Molecular Biosciences, University of Texas at Austin, Austin, Texas, USA
- Department of Oncology, Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Ruth Nissly
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, and
| | - Ian Bird
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, and
| | - Denver Greenawalt
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, and
| | | | - Abhinay Gontu
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, and
| | | | | | - Isabella M. Cattadori
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, Pennsylvania, USA
- Center for Molecular and Translational Human Infectious Diseases, Houston Methodist Research Institute, Houston, Texas, USA
- Department of Biology, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Peter J. Hudson
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, Pennsylvania, USA
- Huck Institutes of the Life Sciences and
- Department of Biology, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Nicole M. Josleyn
- US Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Laura Prugar
- US Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Kathleen Huie
- US Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Andrew Herbert
- US Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - David W. Bernard
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - John M. Dye
- US Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Vivek Kapur
- Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, Pennsylvania, USA
- Huck Institutes of the Life Sciences and
- Department of Animal Science, Pennsylvania State University, University Park, Pennsylvania, USA
| | - James M. Musser
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
- Center for Molecular and Translational Human Infectious Diseases, Houston Methodist Research Institute, Houston, Texas, USA
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