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Stambouli N, Bahrini K, Romdhani C, Rebai A, Boughariou S, Zakraoui M, Arfaoui B, Seyli S, Boukhalfa Y, Battikh R, Moussa MB, Labbene I, Ferjani M, Gharssallah H. Humoral and cellular response of two different vaccines against SARS-CoV-2 in a group of healthcare workers: An observational study. J Immunol Methods 2024; 528:113665. [PMID: 38490578 DOI: 10.1016/j.jim.2024.113665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
On March 13, 2021, Tunisia started a widespread immunization program against SARS-CoV-2 utilizing different vaccinations that had been given emergency approval. Herein, we followed prospectively a cohort of participant who received COVID-19 vaccine (Pfizer BioNTech and Sputnik-Gameleya V). The goal of this follow-up was to define the humoral and cellular immunological profile after immunization by assessing neutralizing antibodies and IFN- γ release. 26 vaccinated health care workers by Pfizer BioNTech (n=12) and Sputnik-Gameleya V (n=14) were enrolled from June to December 2021 in Military hospital of Tunis. All consenting participants were sampled for peripheral blood after three weeks of vaccination. The humoral response was investigated by the titer of anti-SARS-CoV-2 immunoglobulin G (IgG) antibodies to S1 protein. The CD4 and CD8 T cell responses were evaluated by the QuantiFERON® SARS-CoV-2 (Qiagen® Basel, Switzerland). Regardless the type of vaccine, the assessment of humoral and cellular response following vaccination showed a strong involvement of the later with expression of IFN-γ as compared to antibodies secretion. Moreover, we showed that people with past SARS-CoV-2 infection developed high levels of antibodies than those who are not previously infected. However, no significant difference was detected concerning interferon gamma (IFN-γ) expression by CD4 and CD8 T cells in health care worker (HCW) previously infection or not with COVID-19 infection. Analysis of immune response according to the type of vaccine, we found that Pfizer BioNTech induced high level of humoral response (91.66%) followed by Sputnik-Gameleya V (64.28%). However, adenovirus vaccine gave a better cellular response (57.14%) than mRNA vaccine (41.66%). Regarding the immune response following vaccine doses, we revealed a significant increase of neutralizing antibodies and IFN-γ release by T cells in patients fully vaccinated as compared to those who have received just one vaccine. Collectively, our data revealed a similar immune response between Pfizer BioNTech and Sputnik-Gameleya V vaccine with a slight increase of humoral response by mRNA vaccine and cellular response by adenovirus vaccine. It's evident that past SARS-CoV-2 infection was a factor that contributed to the vaccination's increased immunogenicity. However, the administration of full doses of vaccines (Pfizer BioNTech or Sputnik-Gameleya V) induces better humoral and cellular responses detectable even more than three months following vaccination.
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Affiliation(s)
- Nejla Stambouli
- Research Unit UR17DN05, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Khadija Bahrini
- Research Unit UR17DN05, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia; University Tunis El Manar, Tunis, Tunisia.
| | - Chihebeddine Romdhani
- Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Aicha Rebai
- Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Sana Boughariou
- Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Mohamed Zakraoui
- Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Bilel Arfaoui
- Department of Internal Medicine, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Sameh Seyli
- Department of Internal Medicine, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Yasmine Boukhalfa
- Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Riadh Battikh
- Department of Infectious Disease, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Mohamed Ben Moussa
- Laboratory of Virology, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Iheb Labbene
- University Tunis El Manar, Tunis, Tunisia; Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Mustpha Ferjani
- University Tunis El Manar, Tunis, Tunisia; Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
| | - Hedi Gharssallah
- Research Unit UR17DN05, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia; University Tunis El Manar, Tunis, Tunisia; Department of Anesthesiology and Intensive Care, Military Hospital of Tunis, 1008 Montfleury, Tunis, Tunisia
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Domènech-Montoliu S, Puig-Barberà J, Pac-Sa MR, Orrico-Sanchéz A, Gómez-Lanas L, Sala-Trull D, Domènech-Leon C, Del Rio-González A, Sánchez-Urbano M, Satorres-Martinez P, Aparisi-Esteve L, Badenes-Marques G, Blasco-Gari R, Casanova-Suarez J, Gil-Fortuño M, Hernández-Pérez N, Jovani-Sales D, López-Diago L, Notari-Rodríguez C, Pérez-Olaso O, Romeu-Garcia MA, Ruíz-Puig R, Arnedo-Pena A. Cellular Immunity of SARS-CoV-2 in the Borriana COVID-19 Cohort: A Nested Case-Control Study. EPIDEMIOLOGIA 2024; 5:167-186. [PMID: 38651389 PMCID: PMC11036210 DOI: 10.3390/epidemiologia5020012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/27/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024] Open
Abstract
Our goal was to determine the cellular immune response (CIR) in a sample of the Borriana COVID-19 cohort (Spain) to identify associated factors and their relationship with infection, reinfection and sequelae. We conducted a nested case-control study using a randomly selected sample of 225 individuals aged 18 and older, including 36 individuals naïve to the SARS-CoV-2 infection and 189 infected patients. We employed flow-cytometry-based immunoassays for intracellular cytokine staining, using Wuhan and BA.2 antigens, and chemiluminescence microparticle immunoassay to detect SARS-CoV-2 antibodies. Logistic regression models were applied. A total of 215 (95.6%) participants exhibited T-cell response (TCR) to at least one antigen. Positive responses of CD4+ and CD8+ T cells were 89.8% and 85.3%, respectively. No difference in CIR was found between naïve and infected patients. Patients who experienced sequelae exhibited a higher CIR than those without. A positive correlation was observed between TCR and anti-spike IgG levels. Factors positively associated with the TCR included blood group A, number of SARS-CoV-2 vaccine doses received, and anti-N IgM; factors inversely related were the time elapsed since the last vaccine dose or infection, and blood group B. These findings contribute valuable insights into the nuanced immune landscape shaped by SARS-CoV-2 infection and vaccination.
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Affiliation(s)
| | - Joan Puig-Barberà
- Vaccines Research Unit, Foundation for the Promotion of Health and Biomedical Research in Valencia Region FISABIO-Public Health, 46020 Valencia, Spain; (J.P.-B.); (A.O.-S.)
| | - María Rosario Pac-Sa
- Public Health Center, 12003 Castelló de la Plana, Spain; (M.R.P.-S.); (M.A.R.-G.)
| | - Alejandro Orrico-Sanchéz
- Vaccines Research Unit, Foundation for the Promotion of Health and Biomedical Research in Valencia Region FISABIO-Public Health, 46020 Valencia, Spain; (J.P.-B.); (A.O.-S.)
- Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Secretary of Chair of Vaccines Catholic University of Valencia, 46001 Valencia, Spain
| | - Lorna Gómez-Lanas
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Diego Sala-Trull
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Carmen Domènech-Leon
- Department of Medicine, University CEU Cardenal Herrera, 12006 Castelló de la Plana, Spain;
| | | | - Manuel Sánchez-Urbano
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Paloma Satorres-Martinez
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | | | - Gema Badenes-Marques
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Roser Blasco-Gari
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | | | - María Gil-Fortuño
- Microbiology Service University Hospital de la Plana, 12540 Vila-real, Spain; (M.G.-F.); (N.H.-P.); (O.P.-O.)
| | - Noelia Hernández-Pérez
- Microbiology Service University Hospital de la Plana, 12540 Vila-real, Spain; (M.G.-F.); (N.H.-P.); (O.P.-O.)
| | - David Jovani-Sales
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Laura López-Diago
- Clinical Analysis Service University Hospital de la Plana, 12540 Vila-real, Spain;
| | - Cristina Notari-Rodríguez
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Oscar Pérez-Olaso
- Microbiology Service University Hospital de la Plana, 12540 Vila-real, Spain; (M.G.-F.); (N.H.-P.); (O.P.-O.)
| | | | - Raquel Ruíz-Puig
- Emergency Service University Hospital de la Plana, 12540 Vila-real, Spain; (L.G.-L.); (D.S.-T.); (M.S.-U.); (P.S.-M.); (G.B.-M.); (R.B.-G.); (D.J.-S.); (C.N.-R.); (R.R.-P.)
| | - Alberto Arnedo-Pena
- Public Health Center, 12003 Castelló de la Plana, Spain; (M.R.P.-S.); (M.A.R.-G.)
- Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Department of Health Science, Public University Navarra, 31006 Pamplona, Spain
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Sugrue JA, Duffy D. Systems vaccinology studies - achievements and future potential. Microbes Infect 2024:105318. [PMID: 38460935 DOI: 10.1016/j.micinf.2024.105318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 03/11/2024]
Abstract
Human immune responses to vaccination are variable both within and between populations. Systems vaccinology, which is the application of multi-omics technologies to vaccine studies, seeks to understand such variation and predict responses to optimise vaccine strategies. Here, we outline new approaches to systems vaccinology, focusing on the incorporation of additional cohorts, endpoints and technologies.
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Affiliation(s)
- Jamie A Sugrue
- Translational Immunology Unit, Institut Pasteur, Université de Paris Cité, F75015, Paris, France
| | - Darragh Duffy
- Translational Immunology Unit, Institut Pasteur, Université de Paris Cité, F75015, Paris, France.
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4
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Binayke A, Zaheer A, Vishwakarma S, Singh S, Sharma P, Chandwaskar R, Gosain M, Raghavan S, Murugesan DR, Kshetrapal P, Thiruvengadam R, Bhatnagar S, Pandey AK, Garg PK, Awasthi A. A quest for universal anti-SARS-CoV-2 T cell assay: systematic review, meta-analysis, and experimental validation. NPJ Vaccines 2024; 9:3. [PMID: 38167915 PMCID: PMC10762233 DOI: 10.1038/s41541-023-00794-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024] Open
Abstract
Measuring SARS-CoV-2-specific T cell responses is crucial to understanding an individual's immunity to COVID-19. However, high inter- and intra-assay variability make it difficult to define T cells as a correlate of protection against COVID-19. To address this, we performed systematic review and meta-analysis of 495 datasets from 94 original articles evaluating SARS-CoV-2-specific T cell responses using three assays - Activation Induced Marker (AIM), Intracellular Cytokine Staining (ICS), and Enzyme-Linked Immunospot (ELISPOT), and defined each assay's quantitative range. We validated these ranges using samples from 193 SARS-CoV-2-exposed individuals. Although IFNγ ELISPOT was the preferred assay, our experimental validation suggested that it under-represented the SARS-CoV-2-specific T cell repertoire. Our data indicate that a combination of AIM and ICS or FluoroSpot assay would better represent the frequency, polyfunctionality, and compartmentalization of the antigen-specific T cell responses. Taken together, our results contribute to defining the ranges of antigen-specific T cell assays and propose a choice of assay that can be employed to better understand the cellular immune response against viral diseases.
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Affiliation(s)
- Akshay Binayke
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
- Centre for Immunobiology and Immunotherapy, Translational Health Science and Technology Institute, Faridabad, India
- Jawaharlal Nehru University, New Delhi, India
| | - Aymaan Zaheer
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Siddhesh Vishwakarma
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Savita Singh
- Translational Health Science and Technology Institute, Faridabad, India
| | - Priyanka Sharma
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Rucha Chandwaskar
- Department of Microbiology, AMITY University Rajasthan, Jaipur, India
| | - Mudita Gosain
- Translational Health Science and Technology Institute, Faridabad, India
| | | | | | | | - Ramachandran Thiruvengadam
- Translational Health Science and Technology Institute, Faridabad, India
- Pondicherry Institute of Medical Sciences, Puducherry, India
| | | | | | - Pramod Kumar Garg
- Translational Health Science and Technology Institute, Faridabad, India
- All India Institute of Medical Sciences, New Delhi, India
| | - Amit Awasthi
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India.
- Centre for Immunobiology and Immunotherapy, Translational Health Science and Technology Institute, Faridabad, India.
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5
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Wang L, Nicols A, Turtle L, Richter A, Duncan CJA, Dunachie SJ, Klenerman P, Payne RP. T cell immune memory after covid-19 and vaccination. BMJ MEDICINE 2023; 2:e000468. [PMID: 38027416 PMCID: PMC10668147 DOI: 10.1136/bmjmed-2022-000468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023]
Abstract
The T cell memory response is a crucial component of adaptive immunity responsible for limiting or preventing viral reinfection. T cell memory after infection with the SARS-CoV-2 virus or vaccination is broad, and spans multiple viral proteins and epitopes, about 20 in each individual. So far the T cell memory response is long lasting and provides a high level of cross reactivity and hence resistance to viral escape by variants of the SARS-CoV-2 virus, such as the omicron variant. All current vaccine regimens tested produce robust T cell memory responses, and heterologous regimens will probably enhance protective responses through increased breadth. T cell memory could have a major role in protecting against severe covid-19 disease through rapid viral clearance and early presentation of epitopes, and the presence of cross reactive T cells might enhance this protection. T cell memory is likely to provide ongoing protection against admission to hospital and death, and the development of a pan-coronovirus vaccine might future proof against new pandemic strains.
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Affiliation(s)
- Lulu Wang
- Translational and Clinical Research Institute, Immunity and Inflammation Theme, Newcastle University, Newcastle upon Tyne, UK
| | - Alex Nicols
- Translational and Clinical Research Institute, Immunity and Inflammation Theme, Newcastle University, Newcastle upon Tyne, UK
| | - Lance Turtle
- NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
- Tropical and Infectious Disease Unit, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Alex Richter
- Institute of Immunology and Immunotherapy, College of Medical and Dental Science, University of Birmingham, Birmingham, UK
| | - Christopher JA Duncan
- Translational and Clinical Research Institute, Immunity and Inflammation Theme, Newcastle University, Newcastle upon Tyne, UK
- Department of Infection and Tropical Medicine, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Susanna J Dunachie
- NDM Centre For Global Health Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University Faculty of Science, Bangkok, Thailand
| | - Paul Klenerman
- Oxford University Hospitals NHS Foundation Trust, Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, Oxfordshire, UK
- Translational Gastroenterology Unit, University of Oxford, Oxford, UK
| | - Rebecca P Payne
- Translational and Clinical Research Institute, Immunity and Inflammation Theme, Newcastle University, Newcastle upon Tyne, UK
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Fernández-González M, Agulló V, García JA, Padilla S, García-Abellán J, de la Rica A, Mascarell P, Masiá M, Gutiérrez F. T-Cell Immunity Against Severe Acute Respiratory Syndrome Coronavirus 2 Measured by an Interferon-γ Release Assay Is Strongly Associated With Patient Outcomes in Vaccinated Persons Hospitalized With Delta or Omicron Variants. J Infect Dis 2023; 228:1240-1252. [PMID: 37418551 DOI: 10.1093/infdis/jiad260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 07/09/2023] Open
Abstract
BACKGROUND We measured T-cell and antibody responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in vaccinated patients hospitalized for coronavirus disease 2019 (COVID-19) and explored their potential value to predict outcomes. METHODS This was a prospective, longitudinal study including vaccinated patients hospitalized with Delta and Omicron SARS-CoV-2 variants. TrimericS-IgG antibodies and SARS-CoV-2 T-cell response were measured using a specific quantitative interferon-γ release assay (IGRA). Primary outcome was all-cause 28-day mortality or need for intensive care unit (ICU) admission. Cox models were used to assess associations with outcomes. RESULTS Of 181 individuals, 158 (87.3%) had detectable SARS-CoV-2 antibodies, 92 (50.8%) showed SARS-CoV-2-specific T-cell responses, and 87 (48.1%) had both responses. Patients who died within 28 days or were admitted to ICU were less likely to have both unspecific and specific T-cell responses in IGRA. In adjusted analyses (adjusted hazard ratio [95% confidence interval]), for the entire cohort, having both T-cell and antibody responses at admission (0.16 [.05-.58]) and Omicron variant (0.38 [.17-.87]) reduced the hazard of 28-day mortality or ICU admission, whereas higher Charlson comorbidity index score (1.27 [1.07-1.51]) and lower oxygen saturation to fraction of inspired oxygen ratio (2.36 [1.51-3.67]) increased the risk. CONCLUSIONS Preexisting immunity against SARS-CoV-2 is strongly associated with patient outcomes in vaccinated individuals requiring hospital admission for COVID-19. Persons showing both T-cell and antibody responses have the lowest risk of severe outcomes.
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Affiliation(s)
- Marta Fernández-González
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
| | - Vanesa Agulló
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
| | - José Alberto García
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
| | - Sergio Padilla
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
- Clinical Medicine Department, Universidad Miguel Hernández, San Juan de Alicante
| | - Javier García-Abellán
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
- Clinical Medicine Department, Universidad Miguel Hernández, San Juan de Alicante
| | - Alba de la Rica
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Microbiology Service, Hospital General Universitario de Elche, Elche, Spain
| | - Paula Mascarell
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
| | - Mar Masiá
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
- Clinical Medicine Department, Universidad Miguel Hernández, San Juan de Alicante
| | - Félix Gutiérrez
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid
- Clinical Medicine Department, Universidad Miguel Hernández, San Juan de Alicante
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Lamara Mahammed L, Bensaid K, Ait-Seddik S, Larinouna A, Brahimi G, Belkaid R, Hamzaoui O, Rouaki SM, Idder C, Allam I, Djidjik R. Improved Performance of the QuantiFERON-SARS-CoV-2 Assay with the Extended Set. Viruses 2023; 15:v15051179. [PMID: 37243265 DOI: 10.3390/v15051179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/09/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Multiple assays have been developed for the characterization of the functional activation of SARS-CoV-2 specific T-cells. This study was conducted to assess the post-vaccination and post-infection T cell response, as detected by the QuantiFERON-SARS-CoV-2 assay using the combination of three SARS-CoV-2 specific antigens (Ag1, Ag2 and Ag3). An amount of 75 participants with different infection and vaccination backgrounds were recruited for the evaluation of humoral and cellular immune responses. An elevated IFN-γ response in at least one Ag tube was observed in 69.2% of convalescent subjects and 63.9% of vaccinated ones. Interestingly, in a healthy unvaccinated case and three convalescents with negative IgG-RBD, we detected a positive QuantiFERON test after stimulation with Ag3. The majority of the T cell responders reacted simultaneously to the three SARS-CoV-2 specific antigens, and Ag3 demonstrated the highest rate of reactivity. At univariable analysis, the only factor that was associated with an absence of a cellular response was time from blood collection, being less than 30 days (OR:3.5, CI95% [1.15-10.50], p = 0.028). Overall, the inclusion of Ag3 improved the performance of the QuantiFERON-SARS-CoV-2 and showed a particular interest among subjects who fail to achieve a measurable antibody response after infection or vaccination.
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Affiliation(s)
- Lydia Lamara Mahammed
- Immunology Department, Beni-Messous Teaching Hospital, Faculty of Pharmacy, University of Algiers, Algiers 16000, Algeria
| | - Kahina Bensaid
- Immunology Department, Beni-Messous Teaching Hospital, Faculty of Pharmacy, University of Algiers, Algiers 16000, Algeria
| | - Sarah Ait-Seddik
- Epidemiology Department, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | - Amel Larinouna
- Epidemiology Department, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | - Ghania Brahimi
- Epidemiology Department, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | - Rosa Belkaid
- Epidemiology Department, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | | | - Soumia Meriem Rouaki
- Occupational Medicine, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | - Cherifa Idder
- Occupational Medicine, Beni-Messous Teaching Hospital, Faculty of Medicine, University of Algiers, Algiers 16000, Algeria
| | - Ines Allam
- Immunology Department, Beni-Messous Teaching Hospital, Faculty of Pharmacy, University of Algiers, Algiers 16000, Algeria
| | - Reda Djidjik
- Immunology Department, Beni-Messous Teaching Hospital, Faculty of Pharmacy, University of Algiers, Algiers 16000, Algeria
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Jang J, Widyasari K, Kim S. Comparative analysis between STANDARD-E Covi-FERON ELISA with pre-existing IFN-γ release assays and determination of the optimum cutoff value for assessment of T-Cell response to SARS-CoV-2. J Clin Lab Anal 2023; 37:e24882. [PMID: 37032413 PMCID: PMC10156097 DOI: 10.1002/jcla.24882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 03/16/2023] [Accepted: 03/26/2023] [Indexed: 04/11/2023] Open
Abstract
BACKGROUND Interferon-gamma (IFN-γ) release assays (IGRAs) are useful for the assessment of the T-cell response to severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). We aimed to assess the performance of the newly developed IGRA ELISA test compared to the pre-existing assays and to validate the cutoff value in real-world conditions. METHODS We enrolled 219 participants and assessed agreement between STANDARD-E Covi-FERON ELISA with Quanti-FERON SARS-CoV-2 (QFN SARS-CoV-2), as well as with T SPOT Discovery SARS-CoV-2 based on Cohen's kappa-index. We further determined the optimal cutoff value for the Covi-FERON ELISA according to the immune response to vaccinations or infections. RESULTS We found a moderate agreement between Covi-FERON ELISA and QFN SARS-CoV-2 before vaccination (kappa-index = 0.71), whereas a weak agreement after the first (kappa-index = 0.40) and second vaccinations (kappa-index = 0.46). However, the analysis between Covi-FERON ELISA and T SPOT assay demonstrated a strong agreement (kappa-index >0.7). The cut-off value of the OS (original spike) marker was 0.759 IU/mL with a sensitivity of 96.3% and specificity of 78.7%, and that of the variant spike (VS) marker was 0.663 IU/mL with a sensitivity and specificity of 77.8% and 80.6%, respectively. CONCLUSION The newly determined cut-off value may provide an optimum value to minimize and prevent the occurrence of false-negative or false-positive during the assessment of T-cell immune response using Covi-FERON ELISA under real-world conditions.
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Affiliation(s)
- Jieun Jang
- Gyeongnam Center for Infectious Disease Control and Prevention, Changwon, 51154, South Korea
| | - Kristin Widyasari
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, 52727, South Korea
| | - Sunjoo Kim
- Gyeongnam Center for Infectious Disease Control and Prevention, Changwon, 51154, South Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, 52727, South Korea
- Department of Laboratory Medicine, Gyeongsang National University Changwon Hospital, Changwon, 51472, South Korea
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