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Rocos NIE, Coulter FJ, Tan TCJ, Kaufman J. The minor chicken class I gene BF1 is deleted between short imperfect direct repeats in the B14 and typical B15 major histocompatibility complex (MHC) haplotypes. Immunogenetics 2023; 75:455-464. [PMID: 37405420 PMCID: PMC10514180 DOI: 10.1007/s00251-023-01313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 07/06/2023]
Abstract
The chicken major histocompatibility complex (MHC, also known as the BF-BL region of the B locus) is notably small and simple with few genes, most of which are involved in antigen processing and presentation. There are two classical class I genes, of which only BF2 is well and systemically expressed as the major ligand for cytotoxic T lymphocytes (CTLs). The other class I gene, BF1, is believed to be primarily a natural killer (NK) cell ligand. Among most standard chicken MHC haplotypes examined in detail, BF1 is expressed tenfold less than BF2 at the RNA level due to defects in the promoter or in a splice site. However, in the B14 and typical B15 haplotypes, BF1 RNA was not detected, and here, we show that a deletion between imperfect 32 nucleotide direct repeats has removed the BF1 gene entirely. The phenotypic effects of not having a BF1 gene (particularly on resistance to infectious pathogens) have not been systematically explored, but such deletions between short direct repeats are also found in some BF1 promoters and in the 5' untranslated region (5'UTR) of some BG genes found in the BG region of the B locus. Despite the opposite transcriptional orientation of homologous genes in the chicken MHC, which might prevent the loss of key genes from a minimal essential MHC, it appears that small direct repeats can still lead to deletion.
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Affiliation(s)
- Nicolas I. E. Rocos
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
| | - Felicity J. Coulter
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP UK
- Current Address: Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239 USA
| | - Thomas C. J. Tan
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
- Current Address: Wellcome Centre for Cell Biology, Max Born Crescent, Edinburgh, EH9 3BF UK
| | - Jim Kaufman
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP UK
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES UK
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Ozonoff A, Schaenman J, Jayavelu ND, Milliren CE, Calfee CS, Cairns CB, Kraft M, Baden LR, Shaw AC, Krammer F, van Bakel H, Esserman DA, Liu S, Sesma AF, Simon V, Hafler DA, Montgomery RR, Kleinstein SH, Levy O, Bime C, Haddad EK, Erle DJ, Pulendran B, Nadeau KC, Davis MM, Hough CL, Messer WB, Higuita NIA, Metcalf JP, Atkinson MA, Brakenridge SC, Corry D, Kheradmand F, Ehrlich LI, Melamed E, McComsey GA, Sekaly R, Diray-Arce J, Peters B, Augustine AD, Reed EF, Altman MC, Becker PM, Rouphael N, Ozonoff A, Schaenman J, Jayavelu ND, Milliren CE, Calfee CS, Cairns CB, Kraft M, Baden LR, Shaw AC, Krammer F, van Bakel H, Esserman DA, Liu S, Sesma AF, Simon V, Hafler DA, Montgomery RR, Kleinstein SH, Levy O, Bime C, Haddad EK, Erle DJ, Pulendran B, Nadeau KC, Davis MM, Hough CL, Messer WB, Higuita NIA, Metcalf JP, Atkinson MA, Brakenridge SC, Corry D, Kheradmand F, Ehrlich LI, Melamed E, McComsey GA, Sekaly R, Diray-Arce J, Peters B, Augustine AD, Reed EF, McEnaney K, Barton B, Lentucci C, Saluvan M, Chang AC, Hoch A, Albert M, Shaheen T, Kho AT, Thomas S, Chen J, Murphy MD, Cooney M, Presnell S, Fragiadakis GK, Patel R, Guan L, Gygi J, Pawar S, Brito A, Khalil Z, Maguire C, Fourati S, Overton JA, Vita R, Westendorf K, Salehi-Rad R, Leligdowicz A, Matthay MA, Singer JP, Kangelaris KN, Hendrickson CM, Krummel MF, Langelier CR, Woodruff PG, Powell DL, Kim JN, Simmons B, Goonewardene IM, Smith CM, Martens M, Mosier J, Kimura H, Sherman AC, Walsh SR, Issa NC, Dela Cruz C, Farhadian S, Iwasaki A, Ko AI, Chinthrajah S, Ahuja N, Rogers AJ, Artandi M, Siegel SA, Lu Z, Drevets DA, Brown BR, Anderson ML, Guirgis FW, Thyagarajan RV, Rousseau JF, Wylie D, Busch J, Gandhi S, Triplett TA, Yendewa G, Giddings O, Anderson EJ, Mehta AK, Sevransky JE, Khor B, Rahman A, Stadlbauer D, Dutta J, Xie H, Kim-Schulze S, Gonzalez-Reiche AS, van de Guchte A, Farrugia K, Khan Z, Maecker HT, Elashoff D, Brook J, Ramires-Sanchez E, Llamas M, Rivera A, Perdomo C, Ward DC, Magyar CE, Fulcher JA, Abe-Jones Y, Asthana S, Beagle A, Bhide S, Carrillo SA, Chak S, Fragiadakis GK, Ghale R, Gonzalez A, Jauregui A, Jones N, Lea T, Lee D, Lota R, Milush J, Nguyen V, Pierce L, Prasad PA, Rao A, Samad B, Shaw C, Sigman A, Sinha P, Ward A, Willmore A, Zhan J, Rashid S, Rodriguez N, Tang K, Altamirano LT, Betancourt L, Curiel C, Sutter N, Paz MT, Tietje-Ulrich G, Leroux C, Connors J, Bernui M, Kutzler MA, Edwards C, Lee E, Lin E, Croen B, Semenza NC, Rogowski B, Melnyk N, Woloszczuk K, Cusimano G, Bell MR, Furukawa S, McLin R, Marrero P, Sheidy J, Tegos GP, Nagle C, Mege N, Ulring K, Seyfert-Margolis V, Conway M, Francisco D, Molzahn A, Erickson H, Wilson CC, Schunk R, Sierra B, Hughes T, Smolen K, Desjardins M, van Haren S, Mitre X, Cauley J, Li X, Tong A, Evans B, Montesano C, Licona JH, Krauss J, Chang JBP, Izaguirre N, Chaudhary O, Coppi A, Fournier J, Mohanty S, Muenker MC, Nelson A, Raddassi K, Rainone M, Ruff WE, Salahuddin S, Schulz WL, Vijayakumar P, Wang H, Wunder Jr. E, Young HP, Zhao Y, Saksena M, Altman D, Kojic E, Srivastava K, Eaker LQ, Bermúdez-González MC, Beach KF, Sominsky LA, Azad AR, Carreño JM, Singh G, Raskin A, Tcheou J, Bielak D, Kawabata H, Mulder LCF, Kleiner G, Lee AS, Do ED, Fernandes A, Manohar M, Hagan T, Blish CA, Din HN, Roque J, Yang S, Brunton A, Sullivan PE, Strnad M, Lyski ZL, Coulter FJ, Booth JL, Sinko LA, Moldawer LL, Borresen B, Roth-Manning B, Song LZ, Nelson E, Lewis-Smith M, Smith J, Tipan PG, Siles N, Bazzi S, Geltman J, Hurley K, Gabriele G, Sieg S, Vaysman T, Bristow L, Hussaini L, Hellmeister K, Samaha H, Cheng A, Spainhour C, Scherer EM, Johnson B, Bechnak A, Ciric CR, Hewitt L, Carter E, Mcnair N, Panganiban B, Huerta C, Usher J, Ribeiro SP, Altman MC, Becker PM, Rouphael N. Phenotypes of disease severity in a cohort of hospitalized COVID-19 patients: Results from the IMPACC study. EBioMedicine 2022; 83:104208. [PMID: 35952496 PMCID: PMC9359694 DOI: 10.1016/j.ebiom.2022.104208] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [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: 03/24/2022] [Revised: 07/11/2022] [Accepted: 07/25/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Better understanding of the association between characteristics of patients hospitalized with coronavirus disease 2019 (COVID-19) and outcome is needed to further improve upon patient management. METHODS Immunophenotyping Assessment in a COVID-19 Cohort (IMPACC) is a prospective, observational study of 1164 patients from 20 hospitals across the United States. Disease severity was assessed using a 7-point ordinal scale based on degree of respiratory illness. Patients were prospectively surveyed for 1 year after discharge for post-acute sequalae of COVID-19 (PASC) through quarterly surveys. Demographics, comorbidities, radiographic findings, clinical laboratory values, SARS-CoV-2 PCR and serology were captured over a 28-day period. Multivariable logistic regression was performed. FINDINGS The median age was 59 years (interquartile range [IQR] 20); 711 (61%) were men; overall mortality was 14%, and 228 (20%) required invasive mechanical ventilation. Unsupervised clustering of ordinal score over time revealed distinct disease course trajectories. Risk factors associated with prolonged hospitalization or death by day 28 included age ≥ 65 years (odds ratio [OR], 2.01; 95% CI 1.28-3.17), Hispanic ethnicity (OR, 1.71; 95% CI 1.13-2.57), elevated baseline creatinine (OR 2.80; 95% CI 1.63- 4.80) or troponin (OR 1.89; 95% 1.03-3.47), baseline lymphopenia (OR 2.19; 95% CI 1.61-2.97), presence of infiltrate by chest imaging (OR 3.16; 95% CI 1.96-5.10), and high SARS-CoV2 viral load (OR 1.53; 95% CI 1.17-2.00). Fatal cases had the lowest ratio of SARS-CoV-2 antibody to viral load levels compared to other trajectories over time (p=0.001). 589 survivors (51%) completed at least one survey at follow-up with 305 (52%) having at least one symptom consistent with PASC, most commonly dyspnea (56% among symptomatic patients). Female sex was the only associated risk factor for PASC. INTERPRETATION Integration of PCR cycle threshold, and antibody values with demographics, comorbidities, and laboratory/radiographic findings identified risk factors for 28-day outcome severity, though only female sex was associated with PASC. Longitudinal clinical phenotyping offers important insights, and provides a framework for immunophenotyping for acute and long COVID-19. FUNDING NIH.
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Affiliation(s)
- Al Ozonoff
- Clinical & Data Coordinating Center (CDCC); Precision Vaccines Program, Boston Children's Hospital, Boston, MA, United States
| | - Joanna Schaenman
- David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, United States
| | | | - Carly E. Milliren
- Clinical & Data Coordinating Center (CDCC); Precision Vaccines Program, Boston Children's Hospital, Boston, MA, United States
| | - Carolyn S. Calfee
- University of California San Francisco School of Medicine, San Francisco, CA, United States
| | - Charles B. Cairns
- Drexel University/Tower Health Hospital, Philadelphia, PA, United States
| | - Monica Kraft
- University of Arizona, Tucson, AZ, United States
| | - Lindsey R. Baden
- Boston Clinical Site: Precision Vaccines Program, Boston Children's Hospital, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, United States
| | - Albert C. Shaw
- Yale School of Medicine, and Yale School of Public Health, New Haven, CT, United States
| | - Florian Krammer
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Harm van Bakel
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Denise A. Esserman
- Yale School of Medicine, and Yale School of Public Health, New Haven, CT, United States
| | - Shanshan Liu
- Clinical & Data Coordinating Center (CDCC); Precision Vaccines Program, Boston Children's Hospital, Boston, MA, United States
| | | | - Viviana Simon
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - David A. Hafler
- Yale School of Medicine, and Yale School of Public Health, New Haven, CT, United States
| | - Ruth R. Montgomery
- Yale School of Medicine, and Yale School of Public Health, New Haven, CT, United States
| | - Steven H. Kleinstein
- Yale School of Medicine, and Yale School of Public Health, New Haven, CT, United States
| | - Ofer Levy
- Boston Clinical Site: Precision Vaccines Program, Boston Children's Hospital, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, United States
| | | | - Elias K. Haddad
- Drexel University/Tower Health Hospital, Philadelphia, PA, United States
| | - David J. Erle
- University of California San Francisco School of Medicine, San Francisco, CA, United States
| | | | | | | | | | | | | | - Jordan P. Metcalf
- Oklahoma University Health Sciences Center, Oklahoma, OK, United States
| | - Mark A. Atkinson
- University of Florida, Gainesville and University of South Florida, Tampa, FL, United States
| | - Scott C. Brakenridge
- University of Florida, Gainesville and University of South Florida, Tampa, FL, United States
| | - David Corry
- Baylor College of Medicine, and the Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey, Houston, TX, United States
| | - Farrah Kheradmand
- Baylor College of Medicine, and the Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey, Houston, TX, United States
| | | | - Esther Melamed
- The University of Texas at Austin, Austin, TX, United States
| | | | - Rafick Sekaly
- Case Western Reserve University, Cleveland, OH, United States
| | - Joann Diray-Arce
- Clinical & Data Coordinating Center (CDCC); Precision Vaccines Program, Boston Children's Hospital, Boston, MA, United States
| | - Bjoern Peters
- La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Alison D. Augustine
- National Institute of Allergy and Infectious Diseases/National Institutes of Health, Bethesda, MD, United States
| | - Elaine F. Reed
- David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, United States
| | | | - Patrice M. Becker
- National Institute of Allergy and Infectious Diseases/National Institutes of Health, Bethesda, MD, United States
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Song X, Coulter FJ, Yang M, Smith JL, Tafesse FG, Messer WB, Reif JH. A lyophilized colorimetric RT-LAMP test kit for rapid, low-cost, at-home molecular testing of SARS-CoV-2 and other pathogens. Sci Rep 2022; 12:7043. [PMID: 35487969 PMCID: PMC9052177 DOI: 10.1038/s41598-022-11144-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 04/19/2022] [Indexed: 12/12/2022] Open
Abstract
Access to fast and reliable nucleic acid testing continues to play a key role in controlling the COVID-19 pandemic, especially in the context of increased vaccine break-through risks due to new variants. We report a rapid, low-cost (~ 2 USD), simple-to-use nucleic acid test kit for self-administered at-home testing without lab instrumentation. The entire sample-to-answer workflow takes < 60 min, including noninvasive sample collection, one-step RNA preparation, reverse-transcription loop-mediated isothermal amplification (RT-LAMP) in a thermos, and direct visual inspection of a colorimetric test result. To facilitate long-term storage without cold-chain, a fast one-pot lyophilization protocol was developed to preserve all required biochemical reagents of the colorimetric RT-LAMP test in a single microtube. Notably, the lyophilized RT-LAMP assay demonstrated reduced false positives as well as enhanced tolerance to a wider range of incubation temperatures compared to solution-based RT-LAMP reactions. We validated our RT-LAMP assay using simulated infected samples, and detected a panel of SARS-CoV-2 variants with successful detection of all variants that were available to us at the time. With a simple change of the primer set, our lyophilized RT-LAMP home test can be easily adapted as a low-cost surveillance platform for other pathogens and infectious diseases of global public health importance.
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Affiliation(s)
- Xin Song
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA. .,Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA. .,Department of Computer Science, Duke University, Durham, NC, 27708, USA.
| | - Felicity J Coulter
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Ming Yang
- Department of Computer Science, Duke University, Durham, NC, 27708, USA
| | - Jessica L Smith
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Fikadu G Tafesse
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - William B Messer
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA. .,Department of Medicine, Division of Infectious Diseases, Oregon Health and Science University, Portland, OR, 97239, USA. .,Program in Epidemiology, OHSU-PSU School of Public Health, Oregon Health and Science University, Portland, OR, 97239, USA.
| | - John H Reif
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA. .,Department of Computer Science, Duke University, Durham, NC, 27708, USA.
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Bates TA, Leier HC, Lyski ZL, McBride SK, Coulter FJ, Weinstein JB, Goodman JR, Lu Z, Siegel SAR, Sullivan P, Strnad M, Brunton AE, Lee DX, Adey AC, Bimber BN, O'Roak BJ, Curlin ME, Messer WB, Tafesse FG. Neutralization of SARS-CoV-2 variants by convalescent and BNT162b2 vaccinated serum. Nat Commun 2021; 12:5135. [PMID: 34446720 PMCID: PMC8390486 DOI: 10.1038/s41467-021-25479-6] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [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: 03/26/2021] [Accepted: 08/10/2021] [Indexed: 02/03/2023] Open
Abstract
SARS-CoV-2 and its variants continue to infect hundreds of thousands every day despite the rollout of effective vaccines. Therefore, it is essential to understand the levels of protection that these vaccines provide in the face of emerging variants. Here, we report two demographically balanced cohorts of BNT162b2 vaccine recipients and COVID-19 patients, from which we evaluate neutralizing antibody titers against SARS-CoV-2 as well as the B.1.1.7 (alpha) and B.1.351 (beta) variants. We show that both B.1.1.7 and B.1.351 are less well neutralized by serum from vaccinated individuals, and that B.1.351, but not B.1.1.7, is less well neutralized by convalescent serum. We also find that the levels of variant-specific anti-spike antibodies are proportional to neutralizing activities. Together, our results demonstrate the escape of the emerging SARS-CoV-2 variants from neutralization by serum antibodies, which may lead to reduced protection from re-infection or increased risk of vaccine breakthrough.
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Affiliation(s)
- Timothy A Bates
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Hans C Leier
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Zoe L Lyski
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Savannah K McBride
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Felicity J Coulter
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Jules B Weinstein
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | | | - Zhengchun Lu
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Sarah A R Siegel
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR, USA
| | - Peter Sullivan
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR, USA
| | - Matt Strnad
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR, USA
| | - Amanda E Brunton
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR, USA
| | - David X Lee
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA
| | - Andrew C Adey
- Department of Molecular & Medical Genetics, OHSU, Portland, OR, USA
- Knight Cardiovascular Institute, OHSU, Portland, OR, USA
| | | | - Brian J O'Roak
- Department of Molecular & Medical Genetics, OHSU, Portland, OR, USA
| | - Marcel E Curlin
- Department of Medicine, Division of Infectious Diseases, OHSU, Portland, OR, USA.
| | - William B Messer
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA.
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR, USA.
- Department of Medicine, Division of Infectious Diseases, OHSU, Portland, OR, USA.
| | - Fikadu G Tafesse
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR, USA.
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Rosenberg YJ, Jiang X, Cheever T, Coulter FJ, Pandey S, Sack M, Mao L, Urban L, Lees J, Fischer M, Smedley J, Sidener H, Stanton J, Haigwood NL. Protection of Newborn Macaques by Plant-Derived HIV Broadly Neutralizing Antibodies: a Model for Passive Immunotherapy during Breastfeeding. J Virol 2021; 95:e0026821. [PMID: 34190597 PMCID: PMC8387040 DOI: 10.1128/jvi.00268-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/10/2021] [Indexed: 12/16/2022] Open
Abstract
Preventing human immunodeficiency virus (HIV) infection in newborns by vertical transmission remains an important unmet medical need in resource-poor areas where antiretroviral therapy (ART) is not available and mothers and infants cannot be treated prepartum or during the breastfeeding period. In the present study, the protective efficacy of the potent HIV-neutralizing antibodies PGT121 and VRC07-523, both produced in plants, were assessed in a multiple-SHIV (simian-human immunodeficiency virus)-challenge breastfeeding macaque model. Newborn macaques received either six weekly subcutaneous injections with PGT121 alone or as a cocktail of PGT121-LS plus VRC07-523-LS injected three times every 2 weeks. Viral challenge with SHIVSF162P3 was twice weekly over 5.5 weeks using 11 exposures. Despite the transient presence of plasma viral RNA either immediately after the first challenge or as single-point blips, the antibodies prevented a productive infection in all babies with no sustained plasma viremia, compared to viral loads ranging from 103 to 5 × 108 virions/ml in four untreated controls. No virus was detected in peripheral blood mononuclear cells (PBMCs), and only 3 of 159 tissue samples were weakly positive in the treated babies. Newborn macaques proved to be immunocompetent, producing transient anti-Env antibodies and anti-drug antibody (ADA), which were maintained in the circulation after passive broadly neutralizing antibody clearance. ADA responses were directed to the IgG1 Fc CH2-CH3 domains, which has not been observed to date in adult monkeys passively treated with PGT121 or VRC01. In addition, high levels of VRC07-523 anti-idiotypic antibodies in the circulation of one newborn was concomitant with the rapid elimination of VRC07. Plant-expressed antibodies show promise as passive immunoprophylaxis in a breastfeeding model in newborns. IMPORTANCE Plant-produced human neutralizing antibody prophylaxis is highly effective in preventing infection in newborn monkeys during repeated oral exposure, modeling virus in breastmilk, and offers advantages in cost of production and safety. These findings raise the possibility that anti-Env antibodies may contribute to the control of viral replication in this newborn model and that the observed immune responsiveness may be driven by the long-lived presence of immune complexes.
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Affiliation(s)
| | | | - Tracy Cheever
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Felicity J. Coulter
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, USA
| | - Shilpi Pandey
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | | | - Lingjun Mao
- PlantVax Corporation, Rockville, Maryland, USA
| | - Lori Urban
- PlantVax Corporation, Rockville, Maryland, USA
| | | | - Miranda Fischer
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Jeremy Smedley
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Heather Sidener
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Jeffrey Stanton
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Nancy L. Haigwood
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, USA
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Leier HC, Bates TA, Lyski ZL, McBride SK, Lee DX, Coulter FJ, Goodman JR, Lu Z, Curlin ME, Messer WB, Tafesse FG. Previously infected vaccinees broadly neutralize SARS-CoV-2 variants. medRxiv 2021:2021.04.25.21256049. [PMID: 33948601 PMCID: PMC8095208 DOI: 10.1101/2021.04.25.21256049] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 11/24/2022]
Abstract
We compared the serum neutralizing antibody titers before and after two doses of the BNT162b2 COVID-19 vaccine in ten individuals who recovered from SARS-CoV-2 infection prior to vaccination to 20 individuals with no history of infection, against clinical isolates of B.1.1.7, B.1.351, P.1, and the original SARS-CoV-2 virus. Vaccination boosted pre-existing levels of anti-SARS-CoV-2 spike antibodies 10-fold in previously infected individuals, but not to levels significantly higher than those of uninfected vaccinees. However, neutralizing antibody titers increased in previously infected vaccinees relative to uninfected vaccinees against every variant tested: 5.2-fold against B.1.1.7, 6.5-fold against B.1.351, 4.3-fold against P.1, and 3.4-fold against original SARS-CoV-2. Our study indicates that a first-generation COVID-19 vaccine provides broad protection from SARS-CoV-2 variants in individuals with previous infection.
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Affiliation(s)
- Hans C. Leier
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - Timothy A. Bates
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - Zoe L. Lyski
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - Savannah K. McBride
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - David X. Lee
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - Felicity J. Coulter
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - James R. Goodman
- Medical Scientist Training Program, Oregon Health & Science University; Portland, OR 97239, United States
| | - Zhengchun Lu
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
| | - Marcel E. Curlin
- Division of Infectious Diseases, Oregon Health & Science University; Portland, OR 97239, United States
| | - William B. Messer
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
- Division of Infectious Diseases, Oregon Health & Science University; Portland, OR 97239, United States
| | - Fikadu G. Tafesse
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University; Portland, OR 97239, United States
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Bates TA, Leier HC, Lyski ZL, McBride SK, Coulter FJ, Weinstein JB, Goodman JR, Lu Z, Siegel SAR, Sullivan P, Strnad M, Brunton AE, Lee DX, Curlin ME, Messer WB, Tafesse FG. Neutralization of SARS-CoV-2 variants by convalescent and vaccinated serum. medRxiv 2021:2021.04.04.21254881. [PMID: 33851185 PMCID: PMC8043482 DOI: 10.1101/2021.04.04.21254881] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 12/04/2022]
Abstract
We tested human sera from large, demographically balanced cohorts of BNT162b2 vaccine recipients (n=51) and COVID-19 patients (n=44) for neutralizing antibodies against SARS-CoV-2 variants B.1.1.7 and B.1.351. Although the effect is more pronounced in the vaccine cohort, both B.1.1.7 and B.1.351 show significantly reduced levels of neutralization by vaccinated and convalescent sera. Age is negatively correlated with neutralization in vaccinee, and levels of variant-specific RBD antibodies are proportional to neutralizing activities.
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Affiliation(s)
- Timothy A. Bates
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Hans C. Leier
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Zoe L. Lyski
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Savannah K. McBride
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Felicity J. Coulter
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Jules B. Weinstein
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - James R. Goodman
- Medical Scientist Training Program, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Zhengchun Lu
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Sarah A. R. Siegel
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR 97339
| | - Peter Sullivan
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR 97339
| | - Matt Strnad
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR 97339
| | - Amanda E. Brunton
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR 97339
| | - David X. Lee
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Marcel E. Curlin
- USA Department of Medicine, Division of Infectious Diseases, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - William B. Messer
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
- OHSU-PSU School of Public Health, Program in Epidemiology, Portland, OR 97339
- USA Department of Medicine, Division of Infectious Diseases, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - Fikadu G. Tafesse
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
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Nix CD, Salberg J, Coulter FJ, Kareko BW, Lyski ZL, Booty BL, Messer WB. Potency and breadth of human primary ZIKV immune sera shows that Zika viruses cluster antigenically as a single serotype. PLoS Negl Trop Dis 2020; 14:e0008006. [PMID: 32282800 PMCID: PMC7213746 DOI: 10.1371/journal.pntd.0008006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/19/2019] [Revised: 05/11/2020] [Accepted: 12/19/2019] [Indexed: 01/01/2023] Open
Abstract
Zika virus (ZIKV) emerged as a global public health threat throughout the Americas since 2014. Phylogenetically, the virus is composed of three main lineages, an African, Asian, and American lineage. The recent emergence and spread of ZIKV has raised questions regarding the breadth and potency of human primary ZIKV immune sera against antigenically diverse ZIKV. Although ZIKV is thought to compose a single antigenic serotype, in-depth evaluation of the antigenic relatedness of ZIKV across genetic variants has been limited to a relatively small series of early convalescent human immune sera (4-12 weeks) against a limited number (3) of genetic variants. Using virus neutralization assays, we characterize the potency and breadth of twelve primary ZIKV immune sera from adults infected 5 to 38 months previously against a panel of 11 ZIKV isolates from the African, Asian and American lineages. We assess the variability of neutralization potency of immune sera from these subjects and the variability of susceptibility to neutralization for each virus isolate. Overall, we found all sera neutralized all viruses at FRNT50 ranging from 1:271 to 1:4271, a 15.8-fold range, with only small differences between subject geometric mean titers (GMT) against all viruses and small differences between each ZIKV isolate and sensitivity to neutralization by all sera: when pooled, African strains were 1.3-fold more sensitive to neutralization by subject immune sera compared to pooled American strains. Finally, we subjected our data to analysis using antigenic cartography, finding that ZIKV are highly antigenically similar, with only a ~4-fold range across all antigenic distances between viruses, consistent with a single serotype.
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Affiliation(s)
- Chad D. Nix
- Dept. of Infection Prevention and Control, Oregon Health and Science University, Portland, Oregon, United States of America
- Dept. of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Jonathan Salberg
- Dept. of Medicine, Division of Infectious Diseases, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Felicity J. Coulter
- Dept. of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Bettie W. Kareko
- Dept. of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Zoe L. Lyski
- Dept. of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Brian L. Booty
- Oregon Clinical and Translational Research Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - William B. Messer
- Dept. of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
- Dept. of Medicine, Division of Infectious Diseases, Oregon Health and Science University, Portland, Oregon, United States of America
- Program in Epidemiology, Oregon Health & Science University–Portland State University School of Public Health, Portland, Oregon, United States of America
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