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Siracusano G, Ruggiero A, Bisoffi Z, Piubelli C, Carbonare LD, Valenti MT, Mayora-Neto M, Temperton N, Lopalco L, Zipeto D. Different decay of antibody response and VOC sensitivity in naïve and previously infected subjects at 15 weeks following vaccination with BNT162b2. J Transl Med 2022; 20:22. [PMID: 34998405 PMCID: PMC8742572 DOI: 10.1186/s12967-021-03208-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/17/2021] [Indexed: 02/01/2023] Open
Abstract
Background COVID-19 vaccines have demonstrated effectiveness in reducing SARS-CoV-2 mild and severe outcomes. In vaccinated subjects with SARS-CoV-2 history, RBD-specific IgG and pseudovirus neutralization titers were rapidly recalled by a single BTN162b2 vaccine dose to higher levels than those in naïve recipients after the second dose, irrespective of waning immunity. In this study, we inspected the long-term kinetic and neutralizing responses of S-specific IgG induced by two administrations of BTN162b2 vaccine in infection-naïve subjects and in subjects previously infected with SARS-CoV-2. Methods Twenty-six naïve and 9 previously SARS-CoV-2 infected subjects during the second wave of the pandemic in Italy were enrolled for this study. The two groups had comparable demographic and clinical characteristics. By means of ELISA and pseudotyped-neutralization assays, we investigated the kinetics of developed IgG-RBD and their neutralizing activity against both the ancestral D614G and the SARS-CoV-2 variants of concern emerged later, respectively. The Wilcoxon matched pair signed rank test and the Kruskal–Wallis test with Dunn’s correction for multiple comparison were applied when needed. Results Although after 15 weeks from vaccination IgG-RBD dropped in all participants, naïve subjects experienced a more dramatic decline than those with previous SARS-CoV-2 infection. Neutralizing antibodies remained higher in subjects with SARS-CoV-2 history and conferred broad-spectrum protection. Conclusions These data suggest that hybrid immunity to SARS-CoV-2 has a relevant impact on the development of IgG-RBD upon vaccination. However, the rapid decay of vaccination-elicited antibodies highlights that the administration of a third dose is expected to boost the response and acquire high levels of cross-neutralizing antibodies. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03208-3.
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Affiliation(s)
- Gabriel Siracusano
- Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, Via Olgettina 58, 20132, Milan, Italy.
| | - Alessandra Ruggiero
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Zeno Bisoffi
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital Negrar, Verona, Italy.,Department of Diagnostic and Public Health, University of Verona, Verona, Italy
| | - Chiara Piubelli
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital Negrar, Verona, Italy
| | | | | | - Martin Mayora-Neto
- Viral Pseudotype Unit, Medway School of Pharmacy, The Universities of Kent and Greenwich at Medway, Chatham, ME7, 47B, UK
| | - Nigel Temperton
- Viral Pseudotype Unit, Medway School of Pharmacy, The Universities of Kent and Greenwich at Medway, Chatham, ME7, 47B, UK
| | - Lucia Lopalco
- Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, Via Olgettina 58, 20132, Milan, Italy
| | - Donato Zipeto
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Siracusano G, Brombin C, Pastori C, Cugnata F, Noviello M, Tassi E, Princi D, Cantoni D, Malnati MS, Maugeri N, Bozzi C, Saretto G, Clementi N, Mancini N, Uberti-Foppa C, Temperton N, Bonini C, Di Serio C, Lopalco L. Profiling Antibody Response Patterns in COVID-19: Spike S1-Reactive IgA Signature in the Evolution of SARS-CoV-2 Infection. Front Immunol 2021; 12:772239. [PMID: 34804064 PMCID: PMC8595940 DOI: 10.3389/fimmu.2021.772239] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/14/2021] [Indexed: 11/27/2022] Open
Abstract
This contribution explores in a new statistical perspective the antibody responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in 141 coronavirus disease 2019 (COVID-19) patients exhibiting a broad range of clinical manifestations. This cohort accurately reflects the characteristics of the first wave of the SARS-CoV-2 pandemic in Italy. We determined the IgM, IgA, and IgG levels towards SARS-CoV-2 S1, S2, and NP antigens, evaluating their neutralizing activity and relationship with clinical signatures. Moreover, we longitudinally followed 72 patients up to 9 months postsymptoms onset to study the persistence of the levels of antibodies. Our results showed that the majority of COVID-19 patients developed an early virus-specific antibody response. The magnitude and the neutralizing properties of the response were heterogeneous regardless of the severity of the disease. Antibody levels dropped over time, even though spike reactive IgG and IgA were still detectable up to 9 months. Early baseline antibody levels were key drivers of the subsequent antibody production and the long-lasting protection against SARS-CoV-2. Importantly, we identified anti-S1 IgA as a good surrogate marker to predict the clinical course of COVID-19. Characterizing the antibody response after SARS-CoV-2 infection is relevant for the early clinical management of patients as soon as they are diagnosed and for implementing the current vaccination strategies.
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Affiliation(s)
- Gabriel Siracusano
- Division of Immunology, Transplantation and Infectious Disease, Immunobiology of HIV Group, San Raffaele Scientific Institute, Milan, Italy
| | - Chiara Brombin
- University Centre of Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, Milan, Italy
| | - Claudia Pastori
- Division of Immunology, Transplantation and Infectious Disease, Immunobiology of HIV Group, San Raffaele Scientific Institute, Milan, Italy
| | - Federica Cugnata
- University Centre of Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, Milan, Italy
| | - Maddalena Noviello
- Experimental Hematology Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Elena Tassi
- Experimental Hematology Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Denise Princi
- Division of Immunology, Transplantation and Infectious Disease, Immunobiology of HIV Group, San Raffaele Scientific Institute, Milan, Italy
| | - Diego Cantoni
- Viral Pseudotype Unit, Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, United Kingdom
| | - Mauro S. Malnati
- Viral Evolution and Transmission Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Norma Maugeri
- Autoimmunity and Vascular Inflammation Unit, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | | | | | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | | | - Nigel Temperton
- Viral Pseudotype Unit, Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, United Kingdom
| | - Chiara Bonini
- Experimental Hematology Unit, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Clelia Di Serio
- University Centre of Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, Milan, Italy
- Biomedical Faculty, Università della Svizzera Italiana, Lugano, Switzerland
| | - Lucia Lopalco
- Division of Immunology, Transplantation and Infectious Disease, Immunobiology of HIV Group, San Raffaele Scientific Institute, Milan, Italy
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González F, Zepeda O, Toval-Ruiz C, Matute A, Vanegas H, Munguia N, Centeno E, Reyes Y, Svensson L, Nordgren J, de Silva AM, Becker-Dreps S, Premkumar L, Bucardo F. Antibody response to SARS-CoV-2 infection over six months among Nicaraguan outpatients. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2021. [PMID: 33948604 DOI: 10.1101/2021.04.28.21256122] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
New information is emerging about SARS-CoV-2 epidemiology and immunity, but little of this information comes from low- and middle-income countries or from patients receiving care in the outpatient setting. The current study investigated the SARS-CoV-2 infection status and antibody responses in 157 patients seeking care for a respiratory disease suggestive of COVID-19 in private healthcare clinics during the first wave (June-October 2020) of infections in Nicaragua. We examined nasal swabs for the presence of viral RNA via RT-PCR and longitudinally collected sera for the changes in SARS-CoV-2 Spike antibody levels over six months. Among patients with confirmed SARS-CoV-2 infections, we evaluated if clinical symptoms were associated with age, hematological parameters and co-morbidities. The combination of PCR and paired serology identified 60 (38%) of the 157 outpatients as acute COVID-19. While both PCR and serology identified the majority (n = 38, 64%) of the acute infections, a notable number of outpatients were identified by RT-qPCR (n = 13, 22%) or by serology (n = 9, 14%) only. During the longitudinal study, we identified 6 new infections by serology among the 97 non-COVID-19 subjects. In conclusion, this study report that more than one third of the outpatients seeking care for acute respiratory disease during the first epidemic wave of SARS-CoV-2 in Nicaragua had an acute mild COVID-19 infection that correlate with prolonged humoral response. This immune response to the RBD antigen, more likely IgG dependent, significantly increased between the acute to convalescent and decay in the late convalescent but still remained seropositive.
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