1
|
Montesi G, Augello M, Polvere J, Marchetti G, Medaglini D, Ciabattini A. Predicting humoral responses to primary and booster SARS-CoV-2 mRNA vaccination in people living with HIV: a machine learning approach. J Transl Med 2024; 22:432. [PMID: 38715088 PMCID: PMC11077794 DOI: 10.1186/s12967-024-05147-1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/31/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND SARS-CoV-2 mRNA vaccines are highly immunogenic in people living with HIV (PLWH) on effective antiretroviral therapy (ART). However, whether viro-immunologic parameters or other factors affect immune responses to vaccination is debated. This study aimed to develop a machine learning-based model able to predict the humoral response to mRNA vaccines in PLWH and to assess the impact of demographic and clinical variables on antibody production over time. METHODS Different machine learning algorithms have been compared in the setting of a longitudinal observational study involving 497 PLWH, after primary and booster SARS-CoV-2 mRNA vaccination. Both Generalized Linear Models and non-linear Models (Tree Regression and Random Forest) were trained and tested. RESULTS Non-linear algorithms showed better ability to predict vaccine-elicited humoral responses. The best-performing Random Forest model identified a few variables as more influential, within 39 clinical, demographic, and immunological factors. In particular, previous SARS-CoV-2 infection, BMI, CD4 T-cell count and CD4/CD8 ratio were positively associated with the primary cycle immunogenicity, yet their predictive value diminished with the administration of booster doses. CONCLUSIONS In the present work we have built a non-linear Random Forest model capable of accurately predicting humoral responses to SARS-CoV-2 mRNA vaccination, and identifying relevant factors that influence the vaccine response in PLWH. In clinical contexts, the application of this model provides promising opportunities for predicting individual vaccine responses, thus facilitating the development of vaccination strategies tailored for PLWH.
Collapse
Affiliation(s)
- Giorgio Montesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Matteo Augello
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Giulia Marchetti
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
| |
Collapse
|
2
|
Pettini E, Ciabattini A, Fiorino F, Polvere J, Pastore G, Tozzi M, Montagnani F, Marotta G, Bucalossi A, Medaglini D. Spike-Specific Memory B Cell Response in Hematopoietic Cell Transplantation Recipients following Multiple mRNA-1273 Vaccinations: A Longitudinal Observational Study. Vaccines (Basel) 2024; 12:368. [PMID: 38675750 PMCID: PMC11054563 DOI: 10.3390/vaccines12040368] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Preventing SARS-CoV-2 infection is of utmost importance in allogeneic hematopoietic cell transplantation patients (allo-HCT), given their heightened susceptibility to adverse outcomes associated with SARS-CoV-2 infection. However, limited data are available regarding the immune response to COVID-19 vaccines in these subjects, particularly concerning the generation and persistence of spike-specific memory response. Here, we analyzed the spike-specific memory B cells in a cohort of allo-HCT recipients vaccinated with multiple doses of the mRNA-1273 vaccine and monitored the spike-specific antibody response from baseline up to one month after the fourth dose. After the primary vaccine series, the frequency of spike-specific B cells, detected within the pool of Ig-switched CD19+ cells, significantly increased. The booster dose further induced a significant expansion, reaching up to 0.28% of spike-specific B cells. The kinetics of this expansion were slower in the allo-HCT recipients compared to healthy controls. Spike-specific IgG and ACE2/RBD binding inhibition activity were observed in 80% of the allo-HCT recipients after the first two doses, with a significant increase after the third and fourth booster doses, including in the subjects who did not respond to the primary vaccine series. Additionally, 87% of the allo-HCT recipients exhibited positive cross-inhibition activity against the BA.1 variant. Our findings provide evidence that allo-HCT recipients need repeated doses of the mRNA-1273 vaccine to induceSARS-CoV-2 specific immune response similar to that observed in healthy individuals. This is particularly crucial for vulnerable individuals who may exhibit a limited response to the primary series of SARS-CoV-2 vaccination.
Collapse
Affiliation(s)
- Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
- Department of Medicine and Surgery, LUM University “Giuseppe Degennaro”, 70010 Bari, Italy
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
| | - Monica Tozzi
- Cellular Therapy Unit, Department of Innovation, Experimentation, Clinical and Translational Research, University Hospital of Siena, 53100 Siena, Italy; (M.T.); (G.M.); (A.B.)
| | - Francesca Montagnani
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy;
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy
| | - Giuseppe Marotta
- Cellular Therapy Unit, Department of Innovation, Experimentation, Clinical and Translational Research, University Hospital of Siena, 53100 Siena, Italy; (M.T.); (G.M.); (A.B.)
| | - Alessandro Bucalossi
- Cellular Therapy Unit, Department of Innovation, Experimentation, Clinical and Translational Research, University Hospital of Siena, 53100 Siena, Italy; (M.T.); (G.M.); (A.B.)
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (A.C.); (F.F.); (J.P.); (G.P.); (D.M.)
| |
Collapse
|
3
|
Martinez-Murillo PA, Huttner A, Lemeille S, Medaglini D, Ottenhoff THM, Harandi AM, Didierlaurent AM, Siegrist CA. Refined innate plasma signature after rVSVΔG-ZEBOV-GP immunization is shared among adult cohorts in Europe and North America. Front Immunol 2024; 14:1279003. [PMID: 38235127 PMCID: PMC10791923 DOI: 10.3389/fimmu.2023.1279003] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 12/07/2023] [Indexed: 01/19/2024] Open
Abstract
Background During the last decade Ebola virus has caused several outbreaks in Africa. The recombinant vesicular stomatitis virus-vectored Zaire Ebola (rVSVΔG-ZEBOV-GP) vaccine has proved safe and immunogenic but is reactogenic. We previously identified the first innate plasma signature response after vaccination in Geneva as composed of five monocyte-related biomarkers peaking at day 1 post-immunization that correlates with adverse events, biological outcomes (haematological changes and viremia) and antibody titers. In this follow-up study, we sought to identify additional biomarkers in the same Geneva cohort and validate those identified markers in a US cohort. Methods Additional biomarkers were identified using multiplexed protein biomarker platform O-link and confirmed by Luminex. Principal component analysis (PCA) evaluated if these markers could explain a higher variability of the vaccine response (and thereby refined the initial signature). Multivariable and linear regression models evaluated the correlations of the main components with adverse events, biological outcomes, and antibody titers. External validation of the refined signature was conducted in a second cohort of US vaccinees (n=142). Results Eleven additional biomarkers peaked at day 1 post-immunization: MCP2, MCP3, MCP4, CXCL10, OSM, CX3CL1, MCSF, CXCL11, TRAIL, RANKL and IL15. PCA analysis retained three principal components (PC) that accounted for 79% of the vaccine response variability. PC1 and PC2 were very robust and had different biomarkers that contributed to their variability. PC1 better discriminated different doses, better defined the risk of fever and myalgia, while PC2 better defined the risk of headache. We also found new biomarkers that correlated with reactogenicity, including transient arthritis (MCP-2, CXCL10, CXCL11, CX3CL1, MCSF, IL-15, OSM). Several innate biomarkers are associated with antibody levels one and six months after vaccination. Refined PC1 correlated strongly in both data sets (Geneva: r = 0.97, P < 0.001; US: r = 0.99, P< 0.001). Conclusion Eleven additional biomarkers refined the previously found 5-biomarker Geneva signature. The refined signature better discriminated between different doses, was strongly associated with the risk of adverse events and with antibody responses and was validated in a separate cohort.
Collapse
Affiliation(s)
- Paola Andrea Martinez-Murillo
- Center of Vaccinology, Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Angela Huttner
- Center for Vaccinology, Geneva University Hospitals, Geneva, Switzerland
- Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Center for Clinical Research, Geneva University Hospitals, Geneva, Switzerland
| | - Sylvain Lemeille
- Center of Vaccinology, Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Tom H. M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Ali M. Harandi
- Department of Microbiology and Immunology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Vaccine Evaluation Centre, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Arnaud M. Didierlaurent
- Center of Vaccinology, Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Claire-Anne Siegrist
- Center of Vaccinology, Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Center for Vaccinology, Geneva University Hospitals, Geneva, Switzerland
| |
Collapse
|
4
|
Pastore G, Polvere J, Fiorino F, Lucchesi S, Montesi G, Rancan I, Zirpoli S, Lippi A, Durante M, Fabbiani M, Tumbarello M, Montagnani F, Medaglini D, Ciabattini A. Homologous or heterologous administration of mRNA or adenovirus-vectored vaccines show comparable immunogenicity and effectiveness against the SARS-CoV-2 Omicron variant. Expert Rev Vaccines 2024; 23:432-444. [PMID: 38517153 DOI: 10.1080/14760584.2024.2333952] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/19/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Heterologous prime-boost schedules have been employed in SARS-CoV-2 vaccination, yet additional data on immunogenicity and effectiveness are still needed. RESEARCH DESIGN AND METHODS Here, we measured the immunogenicity and effectiveness in the real-world setting of the mRNA booster dose in 181 subjects who had completed primary vaccination with ChAdOx1, BNT162b2, or mRNA1273 vaccines (IMMUNO_COV study; protocol code 18,869). The spike-specific antibody and B cell responses were analyzed up to 6 months after boosting. RESULTS After an initial slower antibody response, the heterologous ChAdOx1/mRNA prime-boost formulation elicited spike-specific IgG titers comparable to homologous approaches, while spike-specific B cells showed a higher percentage of CD21-CD27- atypical cells compared to homologous mRNA vaccination. Mixed combinations of BNT162b2 and mRNA-1273 elicited an immune response comparable with homologous strategies. Non-significant differences in the Relative Risk of infection, calculated over a period of 18 months after boosting, were reported among homologous or heterologous vaccination groups, indicating a comparable relative vaccine effectiveness. CONCLUSIONS Our data endorse the heterologous booster vaccination with mRNA as a valuable alternative to homologous schedules. This approach can serve as a solution in instances of formulation shortages and contribute to enhancing vaccine strategies for potential epidemics or pandemics.
Collapse
Affiliation(s)
- Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medicine and Surgery, LUM University "Giuseppe Degennaro"; Casamassima, Bari, Italy
| | - Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Giorgio Montesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Ilaria Rancan
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Sara Zirpoli
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Arianna Lippi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Miriam Durante
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Mario Tumbarello
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Francesca Montagnani
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
5
|
Vianello E, Persson J, Andersson B, van Veen S, Dias TL, Santoro F, Östensson M, Obudulu O, Agbajogu C, Torkzadeh S, Nakaya HI, Medaglini D, Siegrist CA, Ottenhoff TH, Harandi AM. Global blood miRNA profiling unravels early signatures of immunogenicity of Ebola vaccine rVSVΔG-ZEBOV-GP. iScience 2023; 26:108574. [PMID: 38162033 PMCID: PMC10755791 DOI: 10.1016/j.isci.2023.108574] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 10/27/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
The vectored Ebola vaccine rVSVΔG-ZEBOV-GP elicits protection against Ebola Virus Disease (EVD). In a study of forty-eight healthy adult volunteers who received either the rVSVΔG-ZEBOV-GP vaccine or placebo, we profiled intracellular microRNAs (miRNAs) from whole blood cells (WB) and circulating miRNAs from serum-derived extracellular vesicles (EV) at baseline and longitudinally following vaccination. Further, we identified early miRNA signatures associated with ZEBOV-specific IgG antibody responses at baseline and up to one year post-vaccination, and pinpointed target mRNA transcripts and pathways correlated to miRNAs whose expression was altered after vaccination by using systems biology approaches. Several miRNAs were differentially expressed (DE) and miRNA signatures predicted high or low IgG ZEBOV-specific antibody levels with high classification performance. The top miRNA discriminators were WB-miR-6810, EV-miR-7151-3p, and EV-miR-4426. An eight-miRNA antibody predictive signature was associated with immune-related target mRNAs and pathways. These findings provide valuable insights into early blood biomarkers associated with rVSVΔG-ZEBOV-GP vaccine-induced IgG antibody responses.
Collapse
Affiliation(s)
- Eleonora Vianello
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Josefine Persson
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Björn Andersson
- Bioinformatics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Suzanne van Veen
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | | | | | - Malin Östensson
- Bioinformatics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ogonna Obudulu
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christopher Agbajogu
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Sara Torkzadeh
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Italy
| | - Claire-Anne Siegrist
- Centre for Vaccinology, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
| | - Tom H.M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Ali M. Harandi
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Vaccine Evaluation Center, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, Canada
| |
Collapse
|
6
|
Huttner A, Agnandji ST, Engler O, Hooper JW, Kwilas S, Ricks K, Clements TL, Jonsdottir HR, Nakka SS, Rothenberger S, Kremsner P, Züst R, Medaglini D, Ottenhoff T, Harandi AM, Siegrist CA. Antibody responses to recombinant vesicular stomatitis virus-Zaire Ebolavirus vaccination for Ebola virus disease across doses and continents: 5-year durability. Clin Microbiol Infect 2023; 29:1587-1594. [PMID: 37661067 DOI: 10.1016/j.cmi.2023.08.026] [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: 06/11/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
OBJECTIVES To report 5-year persistence and avidity of antibodies produced by the live-attenuated recombinant vesicular stomatitis virus (rVSV) expressing the Zaire Ebolavirus (ZEBOV) glycoprotein (GP), known as rVSV-ZEBOV (Ervebo®). METHODS Healthy adults vaccinated with 300,000 or 10-50 million plaque-forming units of rVSV-ZEBOV in the WHO-coordinated trials of 2014-2015 were followed for up to 4 (Lambaréné, Gabon) and 5 (Geneva, Switzerland) years. We report seropositivity rates, geometric mean titres (GMTs), and population distribution of ZEBOV-GP ELISA IgG antibodies, neutralizing antibodies (pseudovirus and live-virus neutralization) and antibody avidity; the primary outcome was ZEBOV-GP ELISA IgG GMTs at 4 or 5 years compared with 1 year (Y1) after immunization. RESULTS Among the 168 eligible vaccinees (Geneva: 97 and Lambaréné: 71) enrolled 1 year post-immunization, 146 (87%) remained enrolled at 4 years (Geneva: n = 88, Lambaréné: n = 58), and 84 (87%, Geneva) at 5 years post-vaccination. ZEBOV-GP ELISA IgG GMTs plateaued, with no declining trend from 1 year through the last time point assessed (1147.8 [95% CI 874.3-1507.0] at Y1 versus 1548.1 [95% CI 1136.6-2108.5] at Y5 in Geneva volunteers receiving ≥10 million plaque-forming units of rVSV-ZEBOV), their avidity matching that of ZEBOV convalescents. Live-virus neutralizing antibodies were detected for shorter periods and in fewer vaccinees (53/95 [56%] at Y1 versus 35/84 [42%] at Y5 in Geneva volunteers, all dose levels). DISCUSSION Titres at Y1 emerged as a correlate of antibody persistence at Y5. The findings of persistent ZEBOV-GP ELISA IgG titres yet shorter-lasting, lower titres of live-virus neutralizing antibodies suggest the contribution of antibody-mediated protective mechanisms other than neutralization. Long-term clinical efficacy of rVSV-ZEBOV, however, requires further study.
Collapse
Affiliation(s)
- Angela Huttner
- Division of Infectious Diseases, University Hospitals of Geneva, Geneva, Switzerland; Clinical Trials Unit, Centre for Clinical Research, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland; Centre for Vaccinology, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland.
| | - Selidji Todagbe Agnandji
- Centre de Recherches Médicales de Lambaréné, Campus CERMEL, Lambaréné, Gabon; Institut für Tropenmedizin, Reisemedizin und Humanparasitologie Universitätsklinikum Tübingen, Tübingen, Germany; GermanCenter for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Olivier Engler
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
| | - Jay W Hooper
- Foundational Science Directorate, US Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Steve Kwilas
- Foundational Science Directorate, US Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Keersten Ricks
- Foundational Science Directorate, US Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Tamara L Clements
- Foundational Science Directorate, US Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA
| | - Hulda R Jonsdottir
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
| | - Sravya Sowdamini Nakka
- Department of Microbiology and Immunology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Sylvia Rothenberger
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland; Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland
| | - Peter Kremsner
- Centre de Recherches Médicales de Lambaréné, Campus CERMEL, Lambaréné, Gabon; Institut für Tropenmedizin, Reisemedizin und Humanparasitologie Universitätsklinikum Tübingen, Tübingen, Germany; GermanCenter for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Roland Züst
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Tom Ottenhoff
- Department of Infectious Diseases, Leiden Hospital Centre and University Hospital, Leiden, The Netherlands
| | - Ali M Harandi
- Department of Microbiology and Immunology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Vaccine Evaluation Centre, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Claire-Anne Siegrist
- Centre for Vaccinology, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
| |
Collapse
|
7
|
Waerlop G, Leroux-Roels G, Pagnon A, Begue S, Salaun B, Janssens M, Medaglini D, Pettini E, Montomoli E, Gianchecchi E, Lambe T, Godfrey L, Bull M, Bellamy D, Amdam H, Bredholt G, Cox RJ, Clement F. Proficiency tests to evaluate the impact on assay outcomes of harmonized influenza-specific Intracellular Cytokine Staining (ICS) and IFN-ɣ Enzyme-Linked ImmunoSpot (ELISpot) protocols. J Immunol Methods 2023; 523:113584. [PMID: 37918618 DOI: 10.1016/j.jim.2023.113584] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 09/30/2023] [Accepted: 10/28/2023] [Indexed: 11/04/2023]
Abstract
The magnitude and quality of cell-mediated immune responses elicited by natural infection or vaccination are commonly measured by Interferon-ɣ (IFN-ɣ) Enzyme-Linked ImmunoSpot (ELISpot) and Intracellular Cytokine Staining (ICS). To date, laboratories apply a variety of in-house procedures which leads to diverging results, complicates interlaboratory comparisons and hampers vaccine evaluations. During the FLUCOP project, efforts have been made to develop harmonized Standard Operating Procedures (SOPs) for influenza-specific IFN-ɣ ELISpot and ICS assays. Exploratory pilot studies provided information about the interlaboratory variation before harmonization efforts were initiated. Here we report the results of two proficiency tests organized to evaluate the impact of the harmonization effort on assay results and the performance of participating FLUCOP partners. The introduction of the IFN-ɣ ELISpot SOP reduced variation of both background and stimulated responses. Post-harmonization background responses were all lower than an arbitrary threshold of 50 SFU/million cells. When stimulated with A/California and B/Phuket, a statistically significant reduction in variation (p < 0.0001) was observed and CV values were strongly reduced, from 148% to 77% for A/California and from 126% to 73% for B/Phuket. The harmonizing effect of applying an ICS SOP was also confirmed by an increased homogeneity of data obtained by the individual labs. The application of acceptance criteria on cell viability and background responses further enhanced the data homogeneity. Finally, as the same set of samples was analyzed by both the IFN-ɣ ELISpot and the ICS assays, a method comparison was performed. A clear correlation between the two methods was observed, but they cannot be considered interchangeable. In conclusion, proficiency tests show that a limited harmonization effort consisting of the introduction of SOPs and the use of the same in vitro stimulating antigens leads to a reduction of the interlaboratory variation of IFN-ɣ ELISpot data and demonstrate that substantial improvements for the ICS assay are achieved as comparable laboratory datasets could be generated. Additional steps to further reduce the interlaboratory variation of ICS data can consist of standardized gating templates and detailed data reporting instructions as well as further efforts to harmonize reagent and instrument use.
Collapse
Affiliation(s)
- Gwenn Waerlop
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium.
| | - Geert Leroux-Roels
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium
| | - Anke Pagnon
- Sanofi, Research Global Immunology, Marcy l'Etoile, France
| | - Sarah Begue
- Sanofi, Research Global Immunology, Marcy l'Etoile, France
| | | | | | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Emanuele Montomoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy; VisMederi srl, 53100 Siena, Italy
| | | | - Teresa Lambe
- Oxford Vaccine Group, Department of Paediatrics, Medical Sciences Division, University of Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, United Kingdom
| | - Leila Godfrey
- Oxford Vaccine Group, Department of Paediatrics, Medical Sciences Division, University of Oxford, UK
| | - Maireid Bull
- Oxford Vaccine Group, Department of Paediatrics, Medical Sciences Division, University of Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, United Kingdom
| | - Duncan Bellamy
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Håkon Amdam
- Influenza Centre, Department of Clinical Science, University of Bergen, N5021 Bergen, Norway
| | - Geir Bredholt
- Influenza Centre, Department of Clinical Science, University of Bergen, N5021 Bergen, Norway
| | - Rebecca Jane Cox
- Influenza Centre, Department of Clinical Science, University of Bergen, N5021 Bergen, Norway
| | - Frédéric Clement
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium
| |
Collapse
|
8
|
Gonzalez Dias Carvalho PC, Dominguez Crespo Hirata T, Mano Alves LY, Moscardini IF, do Nascimento APB, Costa-Martins AG, Sorgi S, Harandi AM, Ferreira DM, Vianello E, Haks MC, Ottenhoff THM, Santoro F, Martinez-Murillo P, Huttner A, Siegrist CA, Medaglini D, Nakaya HI. Baseline gene signatures of reactogenicity to Ebola vaccination: a machine learning approach across multiple cohorts. Front Immunol 2023; 14:1259197. [PMID: 38022684 PMCID: PMC10663260 DOI: 10.3389/fimmu.2023.1259197] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The rVSVDG-ZEBOV-GP (Ervebo®) vaccine is both immunogenic and protective against Ebola. However, the vaccine can cause a broad range of transient adverse reactions, from headache to arthritis. Identifying baseline reactogenicity signatures can advance personalized vaccinology and increase our understanding of the molecular factors associated with such adverse events. Methods In this study, we developed a machine learning approach to integrate prevaccination gene expression data with adverse events that occurred within 14 days post-vaccination. Results and Discussion We analyzed the expression of 144 genes across 343 blood samples collected from participants of 4 phase I clinical trial cohorts: Switzerland, USA, Gabon, and Kenya. Our machine learning approach revealed 22 key genes associated with adverse events such as local reactions, fatigue, headache, myalgia, fever, chills, arthralgia, nausea, and arthritis, providing insights into potential biological mechanisms linked to vaccine reactogenicity.
Collapse
Affiliation(s)
| | - Thiago Dominguez Crespo Hirata
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Leandro Yukio Mano Alves
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - André G. Costa-Martins
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Artificial Intelligence and Analytics Department, Institute for Technological Research, São Paulo, Brazil
| | - Sara Sorgi
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Ali M. Harandi
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Vaccine Evaluation Center, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Daniela M. Ferreira
- Oxford Vaccine Group, University of Oxford, Oxford, United Kingdom
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Eleonora Vianello
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Mariëlle C. Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Tom H. M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Angela Huttner
- Centre for Vaccinology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Infectious Diseases Service, Geneva University Hospitals, Geneva, Switzerland
| | - Claire-Anne Siegrist
- Centre for Vaccinology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Helder I. Nakaya
- Scientific Platform Pasteur-University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| |
Collapse
|
9
|
Jungbluth S, Martin W, Slezak M, Depraetere H, Guzman CA, Ussi A, Morrow D, Van Heuverswyn F, Arnouts S, Carrondo MJT, Olesen O, Ottenhoff TH, Dockrell HM, Ho MM, Dobly A, Christensen D, Segalés J, Laurent F, Lantier F, Stockhofe-Zurwieden N, Morelli F, Langermans JA, Verreck FA, Le Grand R, Sloots A, Medaglini D, Lawrenz M, Collin N. Potential business model for a European vaccine R&D infrastructure and its estimated socio-economic impact. F1000Res 2023; 12:1401. [PMID: 38298529 PMCID: PMC10828550 DOI: 10.12688/f1000research.141399.1] [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] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/16/2023] [Indexed: 02/02/2024] Open
Abstract
Background Research infrastructures are facilities or resources that have proven fundamental for supporting scientific research and innovation. However, they are also known to be very expensive in their establishment, operation and maintenance. As by far the biggest share of these costs is always borne by public funders, there is a strong interest and indeed a necessity to develop alternative business models for such infrastructures that allow them to function in a more sustainable manner that is less dependent on public financing. Methods In this article, we describe a feasibility study we have undertaken to develop a potentially sustainable business model for a vaccine research and development (R&D) infrastructure. The model we have developed integrates two different types of business models that would provide the infrastructure with two different types of revenue streams which would facilitate its establishment and would be a measure of risk reduction. For the business model we are proposing, we have undertaken an ex ante impact assessment that estimates the expected impact for a vaccine R&D infrastructure based on the proposed models along three different dimensions: health, society and economy. Results Our impact assessment demonstrates that such a vaccine R&D infrastructure could achieve a very significant socio-economic impact, and so its establishment is therefore considered worthwhile pursuing. Conclusions The business model we have developed, the impact assessment and the overall process we have followed might also be of interest to other research infrastructure initiatives in the biomedical field.
Collapse
Affiliation(s)
| | - William Martin
- European Vaccine Initiative (EVI), Heidelberg, 69115, Germany
| | - Monika Slezak
- European Vaccine Initiative (EVI), Heidelberg, 69115, Germany
| | | | - Carlos A. Guzman
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, 38124, Germany
| | - Anton Ussi
- EATRIS- European Research Infrastructure for Translational Medicine, Amsterdam, 1081 HZ, The Netherlands
| | - David Morrow
- EATRIS- European Research Infrastructure for Translational Medicine, Amsterdam, 1081 HZ, The Netherlands
| | | | - Sven Arnouts
- provaxs - Ghent University, Merelbeke, 9820, Belgium
| | | | - Ole Olesen
- European Vaccine Initiative (EVI), Heidelberg, 69115, Germany
| | - Tom H.M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, 2300RC, The Netherlands
| | - H. M. Dockrell
- London School of Hygiene & Tropical Medicine (LSHTM), London, WC1E 7HT, UK
| | - Mei Mei Ho
- Medicines and Healthcare products Regulatory Agency (MHRA), Potters Bar, Hertfordshire, EN6 3QG, UK
| | | | | | - Joaquim Segalés
- Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Bellaterra, 08193, Spain
| | - Fabrice Laurent
- Université François Rabelais de Tours, Centre Val de Loire, UMR1282 ISP, INRAE, Nouzilly, 37380, France
| | - Frédéric Lantier
- Université François Rabelais de Tours, Centre Val de Loire, UMR1282 ISP, INRAE, Nouzilly, 37380, France
| | - Norbert Stockhofe-Zurwieden
- Wageningen Bioveterinary Research, Wageningen University & Research (SWR), Wageningen, 6700 HB, The Netherlands
| | | | - Jan A.M. Langermans
- Biomedical Primate Research Centre (BPRC), Rijswijk, 2288 GJ, The Netherlands
| | - Frank A.W. Verreck
- Biomedical Primate Research Centre (BPRC), Rijswijk, 2288 GJ, The Netherlands
| | - Roger Le Grand
- IDMIT Infrastructure, CEA, Université Paris-Saclay, Inserm, Fontenay-aux-Roses, 92265, Cedex, France
| | | | | | - Maria Lawrenz
- Vaccine Formulation Institute (VFI), Plan-les-Ouates, Geneva, 1228, Switzerland
| | - Nicolas Collin
- Vaccine Formulation Institute (VFI), Plan-les-Ouates, Geneva, 1228, Switzerland
| |
Collapse
|
10
|
Panza F, Fiorino F, Pastore G, Fiaschi L, Tumbarello M, Medaglini D, Ciabattini A, Montagnani F, Fabbiani M. Does Nirmatrelvir/Ritonavir Influence the Immune Response against SARS-CoV-2, Independently from Rebound? Microorganisms 2023; 11:2607. [PMID: 37894265 PMCID: PMC10609571 DOI: 10.3390/microorganisms11102607] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Recurrence of coronavirus disease 19 (COVID-19) symptoms and SARS-CoV-2 viral load relapse have been reported in people treated with nirmatrelvir/ritonavir (NM/r). However, little is understood about the etiology of this phenomenon. Our aim was to investigate the relation between the host's immune response and viral rebound. We described three cases of COVID-19 rebound that occurred after treatment with nirmatrelvir/ritonavir (group A). In addition, we compared spike-specific antibody response and plasma cytokine/chemokine patterns of the rebound cases with those of (i) control patients treated with nirmatrelvir/ritonavir who did not show rebound (group B), and (ii) subjects not treated with any anti-SARS-CoV-2 drug (group C). The anti-spike antibodies and plasma cytokines/chemokines were similar in groups A and B. However, we observed a higher anti-BA.2 spike IgG response in patients without antiviral treatment (group C) [geometric mean titer 210,807, 5.1- and 8.2-fold higher compared to group A (p = 0.039) and group B (p = 0.032)]. Moreover, the patients receiving antiviral treatment (groups A-B) showed higher circulating levels of platelet-derived growth factor subunit B (PDGF-BB) and vascular endothelial growth Factors (VEGF) and lower levels of interleukin-9 (IL-9), interleukine-1 receptor antagonist (IL-1 RA), and regulated upon activation normal T cell expressed and presumably secreted chemokine (RANTES) when compared to group C. In conclusion, we observed lower anti-spike IgG levels and different cytokine patterns in nirmatrelvir/ritonavir-treated patients compared to those not treated with anti-SARS-CoV-2 drugs. This suggests that early antiviral treatment, by reducing viral load and antigen presentation, could mitigate the immune response against SARS-CoV-2. The clinical relevance of such observation should be further investigated in larger populations.
Collapse
Affiliation(s)
- Francesca Panza
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.P.); (L.F.); (M.T.)
- Infectious and Tropical Diseases Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (G.P.); (D.M.); (A.C.)
- Department of Medicine and Surgery, LUM University “Giuseppe Degennaro”, Casamassima, 70010 Bari, Italy
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (G.P.); (D.M.); (A.C.)
| | - Lia Fiaschi
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.P.); (L.F.); (M.T.)
| | - Mario Tumbarello
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.P.); (L.F.); (M.T.)
- Infectious and Tropical Diseases Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (G.P.); (D.M.); (A.C.)
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (G.P.); (D.M.); (A.C.)
| | - Francesca Montagnani
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.P.); (L.F.); (M.T.)
- Infectious and Tropical Diseases Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
| | - Massimiliano Fabbiani
- Infectious and Tropical Diseases Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
| |
Collapse
|
11
|
Ciabattini A, Pastore G, Lucchesi S, Montesi G, Costagli S, Polvere J, Fiorino F, Pettini E, Lippi A, Ancillotti L, Tumbarello M, Fabbiani M, Montagnani F, Medaglini D. Trajectory of Spike-Specific B Cells Elicited by Two Doses of BNT162b2 mRNA Vaccine. Cells 2023; 12:1706. [PMID: 37443740 PMCID: PMC10340653 DOI: 10.3390/cells12131706] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
The mRNA vaccines for SARS-CoV-2 have demonstrated efficacy and immunogenicity in the real-world setting. However, most of the research on vaccine immunogenicity has been centered on characterizing the antibody response, with limited exploration into the persistence of spike-specific memory B cells. Here we monitored the durability of the memory B cell response up to 9 months post-vaccination, and characterized the trajectory of spike-specific B cell phenotypes in healthy individuals who received two doses of the BNT162b2 vaccine. To profile the spike-specific B cell response, we applied the tSNE and Cytotree automated approaches. Spike-specific IgA+ and IgG+ plasmablasts and IgA+ activated cells were observed 7 days after the second dose and disappeared 3 months later, while subsets of spike-specific IgG+ resting memory B cells became predominant 9 months after vaccination, and they were capable of differentiating into spike-specific IgG secreting cells when restimulated in vitro. Other subsets of spike-specific B cells, such as IgM+ or unswitched IgM+IgD+ or IgG+ double negative/atypical cells, were also elicited by the BNT162b2 vaccine and persisted up to month 9. The analysis of circulating spike-specific IgG, IgA, and IgM was in line with the plasmablasts observed. The longitudinal analysis of the antigen-specific B cell response elicited by mRNA-based vaccines provides valuable insights into our understanding of the immunogenicity of this novel vaccine platform destined for future widespread use, and it can help in guiding future decisions and vaccination schedules.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Giorgio Montesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Simone Costagli
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
- Department of Medicine and Surgery, LUM University “Giuseppe Degennaro”, 70010 Casamassima, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| | - Arianna Lippi
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy; (A.L.); (L.A.); (M.T.); (M.F.); (F.M.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Leonardo Ancillotti
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy; (A.L.); (L.A.); (M.T.); (M.F.); (F.M.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Mario Tumbarello
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy; (A.L.); (L.A.); (M.T.); (M.F.); (F.M.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Massimiliano Fabbiani
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy; (A.L.); (L.A.); (M.T.); (M.F.); (F.M.)
| | - Francesca Montagnani
- Infectious and Tropical Diseases Unit, Department of Medical Sciences, University Hospital of Siena, 53100 Siena, Italy; (A.L.); (L.A.); (M.T.); (M.F.); (F.M.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.P.); (S.L.); (G.M.); (S.C.); (J.P.); (F.F.); (E.P.); (D.M.)
| |
Collapse
|
12
|
Bianchini F, Crivelli V, Abernathy ME, Guerra C, Palus M, Muri J, Marcotte H, Piralla A, Pedotti M, De Gasparo R, Simonelli L, Matkovic M, Toscano C, Biggiogero M, Calvaruso V, Svoboda P, Cervantes Rincón T, Fava T, Podešvová L, Shanbhag AA, Celoria A, Sgrignani J, Stefanik M, Hönig V, Pranclova V, Michalcikova T, Prochazka J, Guerrini G, Mehn D, Ciabattini A, Abolhassani H, Jarrossay D, Uguccioni M, Medaglini D, Pan-Hammarström Q, Calzolai L, Fernandez D, Baldanti F, Franzetti-Pellanda A, Garzoni C, Sedlacek R, Ruzek D, Varani L, Cavalli A, Barnes CO, Robbiani DF. Human neutralizing antibodies to cold linear epitopes and subdomain 1 of the SARS-CoV-2 spike glycoprotein. Sci Immunol 2023; 8:eade0958. [PMID: 36701425 PMCID: PMC9972897 DOI: 10.1126/sciimmunol.ade0958] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 01/23/2023] [Indexed: 01/27/2023]
Abstract
Emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants diminishes the efficacy of vaccines and antiviral monoclonal antibodies. Continued development of immunotherapies and vaccine immunogens resilient to viral evolution is therefore necessary. Using coldspot-guided antibody discovery, a screening approach that focuses on portions of the virus spike glycoprotein that are both functionally relevant and averse to change, we identified human neutralizing antibodies to highly conserved viral epitopes. Antibody fp.006 binds the fusion peptide and cross-reacts against coronaviruses of the four genera, including the nine human coronaviruses, through recognition of a conserved motif that includes the S2' site of proteolytic cleavage. Antibody hr2.016 targets the stem helix and neutralizes SARS-CoV-2 variants. Antibody sd1.040 binds to subdomain 1, synergizes with antibody rbd.042 for neutralization, and, similar to fp.006 and hr2.016, protects mice expressing human angiotensin-converting enzyme 2 against infection when present as a bispecific antibody. Thus, coldspot-guided antibody discovery reveals donor-derived neutralizing antibodies that are cross-reactive with Orthocoronavirinae, including SARS-CoV-2 variants.
Collapse
Affiliation(s)
- Filippo Bianchini
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Virginia Crivelli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | | | - Concetta Guerra
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Martin Palus
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
| | - Jonathan Muri
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Harold Marcotte
- Department of Biosciences and Nutrition, Karolinska Institutet; Huddinge, Sweden
| | - Antonio Piralla
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo; Pavia, Italy
| | - Mattia Pedotti
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Raoul De Gasparo
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Luca Simonelli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Milos Matkovic
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Chiara Toscano
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Maira Biggiogero
- Clinical Research Unit, Clinica Luganese Moncucco; Lugano, Switzerland
| | | | - Pavel Svoboda
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University; Brno, Czech Republic
- Department of Pharmacology and Pharmacy, Faculty of Veterinary Medicine, University of Veterinary Sciences; Brno, Czech Republic
| | - Tomás Cervantes Rincón
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Tommaso Fava
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Lucie Podešvová
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Akanksha A. Shanbhag
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Andrea Celoria
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Jacopo Sgrignani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Michal Stefanik
- Veterinary Research Institute; Brno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in Brno; Brno, Czech Republic
| | - Vaclav Hönig
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
| | - Veronika Pranclova
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Faculty of Science, University of South Bohemia; Ceske Budejovice, Czech Republic
| | - Tereza Michalcikova
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | - Jan Prochazka
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | | | - Dora Mehn
- European Commission, Joint Research Centre (JRC); Ispra, Italy
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies; University of Siena, Siena, Italy
| | - Hassan Abolhassani
- Department of Biosciences and Nutrition, Karolinska Institutet; Huddinge, Sweden
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences; Tehran, Iran
| | - David Jarrossay
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Mariagrazia Uguccioni
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies; University of Siena, Siena, Italy
| | | | - Luigi Calzolai
- European Commission, Joint Research Centre (JRC); Ispra, Italy
| | - Daniel Fernandez
- Sarafan ChEM-H Macromolecular Structure Knowledge Center, Stanford University; Stanford, USA
| | - Fausto Baldanti
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo; Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia; Pavia, Italy
| | | | - Christian Garzoni
- Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco; Lugano, Switzerland
| | - Radislav Sedlacek
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | - Daniel Ruzek
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University; Brno, Czech Republic
| | - Luca Varani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Andrea Cavalli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
- Swiss Institute of Bioinformatics; Lausanne, Switzerland
| | - Christopher O. Barnes
- Department of Biology, Stanford University; Stanford, USA
- Chan Zuckerberg Biohub; San Francisco, USA
| | - Davide F. Robbiani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| |
Collapse
|
13
|
Bianchini F, Crivelli V, Abernathy ME, Guerra C, Palus M, Muri J, Marcotte H, Piralla A, Pedotti M, De Gasparo R, Simonelli L, Matkovic M, Toscano C, Biggiogero M, Calvaruso V, Svoboda P, Rincón TC, Fava T, Podešvová L, Shanbhag AA, Celoria A, Sgrignani J, Stefanik M, Hönig V, Pranclova V, Michalcikova T, Prochazka J, Guerrini G, Mehn D, Ciabattini A, Abolhassani H, Jarrossay D, Uguccioni M, Medaglini D, Pan-Hammarström Q, Calzolai L, Fernandez D, Baldanti F, Franzetti-Pellanda A, Garzoni C, Sedlacek R, Ruzek D, Varani L, Cavalli A, Barnes CO, Robbiani DF. Human neutralizing antibodies to cold linear epitopes and to subdomain 1 of SARS-CoV-2. bioRxiv 2022:2022.11.24.515932. [PMID: 36482967 PMCID: PMC9727766 DOI: 10.1101/2022.11.24.515932] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/30/2022]
Abstract
Emergence of SARS-CoV-2 variants diminishes the efficacy of vaccines and antiviral monoclonal antibodies. Continued development of immunotherapies and vaccine immunogens resilient to viral evolution is therefore necessary. Using coldspot-guided antibody discovery, a screening approach that focuses on portions of the virus spike that are both functionally relevant and averse to change, we identified human neutralizing antibodies to highly conserved viral epitopes. Antibody fp.006 binds the fusion peptide and cross-reacts against coronaviruses of the four genera , including the nine human coronaviruses, through recognition of a conserved motif that includes the S2' site of proteolytic cleavage. Antibody hr2.016 targets the stem helix and neutralizes SARS-CoV-2 variants. Antibody sd1.040 binds to subdomain 1, synergizes with antibody rbd.042 for neutralization and, like fp.006 and hr2.016, protects mice when present as bispecific antibody. Thus, coldspot-guided antibody discovery reveals donor-derived neutralizing antibodies that are cross-reactive with Orthocoronavirinae , including SARS-CoV-2 variants. One sentence summary Broadly cross-reactive antibodies that protect from SARS-CoV-2 variants are revealed by virus coldspot-driven discovery.
Collapse
Affiliation(s)
- Filippo Bianchini
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Virginia Crivelli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | | | - Concetta Guerra
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Martin Palus
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
| | - Jonathan Muri
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Harold Marcotte
- Department of Biosciences and Nutrition, Karolinska Institutet; Huddinge, Sweden
| | - Antonio Piralla
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo; Pavia, Italy
| | - Mattia Pedotti
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Raoul De Gasparo
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Luca Simonelli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Milos Matkovic
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Chiara Toscano
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Maira Biggiogero
- Clinical Research Unit, Clinica Luganese Moncucco; Lugano, Switzerland
| | | | - Pavel Svoboda
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University; Brno, Czech Republic
- Department of Pharmacology and Pharmacy, Faculty of Veterinary Medicine, University of Veterinary Sciences; Brno, Czech Republic
| | - Tomás Cervantes Rincón
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Tommaso Fava
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Lucie Podešvová
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Akanksha A. Shanbhag
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Andrea Celoria
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Jacopo Sgrignani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Michal Stefanik
- Veterinary Research Institute; Brno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in Brno; Brno, Czech Republic
| | - Vaclav Hönig
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
| | - Veronika Pranclova
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Faculty of Science, University of South Bohemia; Ceske Budejovice, Czech Republic
| | - Tereza Michalcikova
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | - Jan Prochazka
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | | | - Dora Mehn
- European Commission, Joint Research Centre (JRC); Ispra, Italy
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies; University of Siena, Siena, Italy
| | - Hassan Abolhassani
- Department of Biosciences and Nutrition, Karolinska Institutet; Huddinge, Sweden
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences; Tehran, Iran
| | - David Jarrossay
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Mariagrazia Uguccioni
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies; University of Siena, Siena, Italy
| | | | - Luigi Calzolai
- European Commission, Joint Research Centre (JRC); Ispra, Italy
| | - Daniel Fernandez
- Sarafan ChEM-H Macromolecular Structure Knowledge Center, Stanford University; Stanford, USA
| | - Fausto Baldanti
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo; Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia; Pavia, Italy
| | | | - Christian Garzoni
- Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco; Lugano, Switzerland
| | - Radislav Sedlacek
- Czech Centre of Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences; Vestec, Czech Republic
| | - Daniel Ruzek
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences; Ceske Budejovice, Czech Republic
- Veterinary Research Institute; Brno, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University; Brno, Czech Republic
| | - Luca Varani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Andrea Cavalli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
- Swiss Institute of Bioinformatics; Lausanne, Switzerland
| | - Christopher O. Barnes
- Department of Biology, Stanford University; Stanford, USA
- Chan Zuckerberg Biohub; San Francisco, USA
| | - Davide F. Robbiani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| |
Collapse
|
14
|
Pettini E, Medaglini D, Ciabattini A. Profiling the B cell immune response elicited by vaccination against the respiratory virus SARS-CoV-2. Front Immunol 2022; 13:1058748. [PMID: 36505416 PMCID: PMC9729280 DOI: 10.3389/fimmu.2022.1058748] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022] Open
Abstract
B cells play a fundamental role in host defenses against viral infections. Profiling the B cell response elicited by SARS-CoV-2 vaccination, including the generation and persistence of antigen-specific memory B cells, is essential for improving the knowledge of vaccine immune responsiveness, beyond the antibody response. mRNA-based vaccines have shown to induce a robust class-switched memory B cell response that persists overtime and is boosted by further vaccine administration, suggesting that memory B cells are critical in driving a recall response upon re-exposure to SARS-CoV-2 antigens. Here, we focus on the role of the B cell response in the context of SARS-CoV-2 vaccination, offering an overview of the different technologies that can be used to identify spike-specific B cells, characterize their phenotype using machine learning approaches, measure their capacity to reactivate following antigen encounter, and tracking the maturation of the B cell receptor antigenic affinity.
Collapse
|
15
|
Begue S, Waerlop G, Salaun B, Janssens M, Bellamy D, Cox RJ, Davies R, Gianchecchi E, Medaglini D, Montomoli E, Pettini E, Leroux-Roels G, Clement F, Pagnon A. Harmonization and qualification of intracellular cytokine staining to measure influenza-specific CD4+ T cell immunity within the FLUCOP consortium. Front Immunol 2022; 13:982887. [PMID: 36341380 PMCID: PMC9632653 DOI: 10.3389/fimmu.2022.982887] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/21/2022] [Indexed: 11/26/2022] Open
Abstract
Despite the knowledge that cell-mediated immunity (CMI) contributes to the reduction of severe influenza infection, transmission, and disease outcome, the correlates of protection for cell-mediated immunity remain still unclear. Therefore, measuring the magnitude and quality of influenza-specific T cell responses in a harmonized way is of utmost importance to improve characterisation of vaccine-induced immunity across different clinical trials. The present study, conducted as part of the FLUCOP project, describes the development of a consensus protocol for the intracellular cytokine staining (ICS) assay, in order to reduce inter-laboratory variability, and its qualification. In order to develop a consensus protocol, the study was divided into different stages. Firstly, two pilot studies evaluated critical parameters in the analytical (read-outs) and post-analytical (gating strategies and data analysis) methods applied by eight different laboratories within the FLUCOP consortium. The methods were then harmonized by fixing the critical parameters and the subsequent consensus protocol was then qualified by one FLUCOP member. The antigen-specific cell population was defined as polypositive CD4+ T cells (i.e. positive for at least two markers among CD40L/IFNγ/IL2/TNFα), which was shown to be the most sensitive and specific read-out. The qualification of this consensus protocol showed that the quantification of polypositive CD4+ T cells was precise, linear and accurate, and sensitive with a lower limit of quantification of 0.0335% antigen-specific polypositive CD4+ T cells. In conclusion, we provide the description of a harmonized ICS assay, which permits quantitative and qualitative evaluation of influenza vaccine-induced T cell responses. Application of this harmonized assay may allow for future comparisons of T cell responses to different influenza vaccines. It may facilitate future assessments of potential correlates of protection with the promise of application across other pathogens.
Collapse
Affiliation(s)
- Sarah Begue
- Research Global Immunology, Sanofi, Marcy L’Etoile, France
| | - Gwenn Waerlop
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium
| | - Bruno Salaun
- GlaxoSmithKline, Clinical Laboratory Sciences, Rixensart, Belgium
| | - Michel Janssens
- GlaxoSmithKline, Clinical Laboratory Sciences, Rixensart, Belgium
| | - Duncan Bellamy
- The Jenner Institute Laboratories, University of Oxford, Oxford, United Kingdom
| | - Rebecca Jane Cox
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Richard Davies
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Emanuele Montomoli
- VisMederi, Siena, Italy
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Geert Leroux-Roels
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium
| | - Frédéric Clement
- Center for Vaccinology (CEVAC), Ghent University and University Hospital, Ghent, Belgium
| | - Anke Pagnon
- Research Global Immunology, Sanofi, Marcy L’Etoile, France
- *Correspondence: Anke Pagnon,
| |
Collapse
|
16
|
Fiorino F, Ciabattini A, Sicuranza A, Pastore G, Santoni A, Simoncelli M, Polvere J, Galimberti S, Baratè C, Sammartano V, Montagnani F, Bocchia M, Medaglini D. The third dose of mRNA SARS-CoV-2 vaccines enhances the spike-specific antibody and memory B cell response in myelofibrosis patients. Front Immunol 2022; 13:1017863. [PMID: 36248803 PMCID: PMC9556722 DOI: 10.3389/fimmu.2022.1017863] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/06/2022] [Indexed: 11/13/2022] Open
Abstract
Vaccination against SARS-CoV-2 using mRNA-based vaccines has been highly recommended for fragile subjects, including myelofibrosis patients (MF). Available data on the immune responsiveness of MF patients to mRNA SARS-CoV-2 vaccination, and the impact of the therapy with the JAK inhibitor ruxolitinib, are still fragmented. Here, we profile the spike-specific IgG and memory B-cell response in MF patients, treated or not with ruxolitinib, after the second and the third dose of SARS-CoV-2 BNT162b2 (BioNTech) and mRNA-1273 (Moderna) vaccines. Plasma and peripheral blood mononuclear cells samples were collected before vaccination, post the second and the third doses and tested for spike-specific antibodies, ACE2/RBD antibody inhibition binding activity and spike-specific B cells. The third vaccine dose significantly increased the spike-specific IgG titers in both ruxolitinib-treated and untreated patients, and strongly enhanced the percentage of subjects with antibodies capable of in vitro blocking ACE2/RBD interaction, from 50% up to 80%. While a very low frequency of spike-specific B cells was measured in blood 7 days after the second vaccination dose, a strong and significant increase was elicited by the third dose administration, generating a B cell response similar to the one detected in healthy controls. Despite the overall positive impact of the third dose in MF patients, two patients that were under active concomitant immunosuppressive treatment at the time of vaccination, and a patient that received lymphodepleting therapies in the past, remained low responders. The third mRNA vaccine dose strongly increases the SARS-CoV-2 specific humoral and B cell responses in MF patients, promoting a reactivation of the immune response similar to the one observed in healthy controls.
Collapse
Affiliation(s)
- Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Anna Sicuranza
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, Siena, Italy
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Adele Santoni
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, Siena, Italy
| | - Martina Simoncelli
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, Siena, Italy
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Sara Galimberti
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Claudia Baratè
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Vincenzo Sammartano
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, Siena, Italy
| | - Francesca Montagnani
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, Azienda Ospedaliero Universitaria Senese, University Hospital of Siena, Siena, Italy
| | - Monica Bocchia
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, Siena, Italy
- *Correspondence: Donata Medaglini, ; Monica Bocchia,
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
- *Correspondence: Donata Medaglini, ; Monica Bocchia,
| |
Collapse
|
17
|
Waerlop G, Leroux-Roels G, Lambe T, Bellamy D, Medaglini D, Pettini E, Cox RJ, Trieu MC, Davies R, Bredholt G, Montomoli E, Gianchecchi E, Clement F. Harmonization and qualification of an IFN-γ Enzyme-Linked ImmunoSpot assay (ELISPOT) to measure influenza-specific cell-mediated immunity within the FLUCOP consortium. Front Immunol 2022; 13:984642. [PMID: 36159843 PMCID: PMC9493492 DOI: 10.3389/fimmu.2022.984642] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Influenza continues to be the most important cause of viral respiratory disease, despite the availability of vaccines. Today’s evaluation of influenza vaccines mainly focuses on the quantitative and functional analyses of antibodies to the surface proteins haemagglutinin (HA) and neuraminidase (NA). However, there is an increasing interest in measuring cellular immune responses targeting not only mutation-prone surface HA and NA but also conserved internal proteins as these are less explored yet potential correlates of protection. To date, laboratories that monitor cellular immune responses use a variety of in-house procedures. This generates diverging results, complicates interlaboratory comparisons, and hampers influenza vaccine evaluation. The European FLUCOP project aims to develop and standardize assays for the assessment of influenza vaccine correlates of protection. This report describes the harmonization and qualification of the influenza-specific interferon-gamma (IFN-γ) Enzyme-Linked ImmunoSpot (ELISpot) assay. Initially, two pilot studies were conducted to identify sources of variability during sample analysis and spot enumeration in order to develop a harmonized Standard Operating Procedure (SOP). Subsequently, an assay qualification study was performed to investigate the linearity, intermediate precision (reproducibility), repeatability, specificity, Lower and Upper Limits of Quantification (LLOQ-ULOQ), Limit of Detection (LOD) and the stability of signal over time. We were able to demonstrate that the FLUCOP harmonized IFN-γ ELISpot assay procedure can accurately enumerate IFN-γ secreting cells in the analytical range of 34.4 Spot Forming Units (SFU) per million cells up to the technical limit of the used reader and in the linear range from 120 000 to 360 000 cells per well, in plates stored up to 6 weeks after development. This IFN-γ ELISpot procedure will hopefully become a useful and reliable tool to investigate influenza-specific cellular immune responses induced by natural infection or vaccination and can be an additional instrument in the search for novel correlates of protection.
Collapse
Affiliation(s)
- Gwenn Waerlop
- Center for Vaccinology (CEVAC), University Hospital, Ghent University, Ghent, Belgium
- *Correspondence: Gwenn Waerlop,
| | - Geert Leroux-Roels
- Center for Vaccinology (CEVAC), University Hospital, Ghent University, Ghent, Belgium
| | - Teresa Lambe
- Nuffield Department of Medicine, The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Duncan Bellamy
- Nuffield Department of Medicine, The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Rebecca Jane Cox
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Mai-Chi Trieu
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Richard Davies
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Geir Bredholt
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Emanuele Montomoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- VisMederi srl, Siena, Italy
| | | | - Frédéric Clement
- Center for Vaccinology (CEVAC), University Hospital, Ghent University, Ghent, Belgium
| |
Collapse
|
18
|
Moscardini IF, Santoro F, Carraro M, Gerlini A, Fiorino F, Germoni C, Gholami S, Pettini E, Medaglini D, Iannelli F, Pozzi G. Immune Memory After Respiratory Infection With Streptococcus pneumoniae Is Revealed by in vitro Stimulation of Murine Splenocytes With Inactivated Pneumococcal Whole Cells: Evidence of Early Recall Responses by Transcriptomic Analysis. Front Cell Infect Microbiol 2022; 12:869763. [PMID: 35795182 PMCID: PMC9251119 DOI: 10.3389/fcimb.2022.869763] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
The in vitro stimulation of immune system cells with live or killed bacteria is essential for understanding the host response to pathogens. In the present study, we propose a model combining transcriptomic and cytokine assays on murine splenocytes to describe the immune recall in the days following pneumococcal lung infection. Mice were sacrificed at days 1, 2, 4, and 7 after Streptococcus pneumoniae (TIGR4 serotype 4) intranasal infection and splenocytes were cultured in the presence or absence of the same inactivated bacterial strain to access the transcriptomic and cytokine profiles. The stimulation of splenocytes from infected mice led to a higher number of differentially expressed genes than the infection or stimulation alone, resulting in the enrichment of 40 unique blood transcription modules, including many pathways related to adaptive immunity and cytokines. Together with transcriptomic data, cytokines levels suggested the presence of a recall immune response promoting both innate and adaptive immunity, stronger from the fourth day after infection. Dimensionality reduction and feature selection identified key variables of this recall response and the genes associated with the increase in cytokine concentrations. This model could study the immune responses involved in pneumococcal infection and possibly monitor vaccine immune response and experimental therapies efficacy in future studies.
Collapse
Affiliation(s)
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
- *Correspondence: Francesco Santoro,
| | - Monica Carraro
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Chiara Germoni
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Samaneh Gholami
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Francesco Iannelli
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gianni Pozzi
- Laboratory of Molecular Microbiology and Biotechnology (LAMMB), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
19
|
Guerrini G, Magrì D, Gioria S, Medaglini D, Calzolai L. Characterization of nanoparticles-based vaccines for COVID-19. Nat Nanotechnol 2022; 17:570-576. [PMID: 35710950 DOI: 10.1038/s41565-022-01129-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 03/23/2022] [Indexed: 06/15/2023]
Abstract
Several vaccines against COVID-19 use nanoparticles to protect the antigen cargo (either proteins or nucleic acids), increase the immunogenicity and ultimately the efficacy. The characterization of these nanomedicines is challenging due to their intrinsic complexity and requires the use of multidisciplinary techniques and competencies. The accurate characterization of nanovaccines can be conceptualized as a combination of physicochemical, immunological and toxicological assays. This will help to address key challenges in the preclinical characterization, will guide the rapid development of safe and effective vaccines for current and future health crises, and will streamline the regulatory process.
Collapse
Affiliation(s)
| | - Davide Magrì
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Sabrina Gioria
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
| | - Luigi Calzolai
- European Commission, Joint Research Centre (JRC), Ispra, Italy.
| |
Collapse
|
20
|
Marchello CS, Birkhold M, Crump JA, Martin LB, Ansah MO, Breghi G, Canals R, Fiorino F, Gordon MA, Kim JH, Hamaluba M, Hanumunthadu B, Jacobs J, Kariuki S, Malvolti S, Mantel C, Marks F, Medaglini D, Mogasale V, Msefula CL, Muthumbi E, Niyrenda TS, Onsare R, Owusu-Dabo E, Pettini E, Ramasamy MN, Soura BA, Spadafina T, Tack B. Complications and mortality of non-typhoidal salmonella invasive disease: a global systematic review and meta-analysis. The Lancet Infectious Diseases 2022; 22:692-705. [PMID: 35114140 PMCID: PMC9021030 DOI: 10.1016/s1473-3099(21)00615-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/03/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023]
|
21
|
Vianello E, Gonzalez-Dias P, van Veen S, Engele CG, Quinten E, Monath TP, Medaglini D, Santoro F, Huttner A, Dubey S, Eichberg M, Ndungu FM, Kremsner PG, Essone PN, Agnandji ST, Siegrist CA, Nakaya HI, Ottenhoff THM, Haks MC. Transcriptomic signatures induced by the Ebola virus vaccine rVSVΔG-ZEBOV-GP in adult cohorts in Europe, Africa, and North America: a molecular biomarker study. Lancet Microbe 2022; 3:e113-e123. [PMID: 35544042 PMCID: PMC7613316 DOI: 10.1016/s2666-5247(21)00235-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/05/2021] [Accepted: 08/13/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND A recombinant vesicular stomatitis virus vector expressing the Zaire Ebola virus glycoprotein (rVSVΔG-ZEBOV-GP) vaccine has been reported as safe, immunogenic, and highly protective in a ring vaccination trial. We aimed to identify transcriptomic immune response biomarker signatures induced by vaccination and associated signatures with its immunogenicity and reactogenicity to better understand the potential mechanisms of action of the vaccine. METHODS 354 healthy adult volunteers were vaccinated in randomised, double-blind, placebo-controlled trials in Europe (Geneva, Switzerland [November, 2014, to January, 2015]) and North America (USA [Dec 5, 2014, to June 23, 2015]), and dose-escalation trials in Africa (Lambaréné, Gabon [November, 2014, to January, 2015], and Kilifi, Kenya [December, 2014, to January, 2015]) using different doses of the recombinant vesicular stomatitis virus vector expressing the Zaire Ebola virus glycoprotein (rVSVΔG-ZEBOV-GP; 3 × 105 to 1 × 108 plaque-forming units [pfu]). Longitudinal transcriptomic responses (days 0, 1, 2, 3, 7, 14, and 28) were measured in whole blood using a targeted gene expression profiling platform (dual-colour reverse-transcriptase multiplex ligation-dependent probe amplification) focusing on 144 immune-related genes. The effect of time and dose on transcriptomic response was also assessed. Logistic regression with lasso regularisation was applied to identify host signatures with optimal discriminatory capability of vaccination at day 1 or day 7 versus baseline, whereas random-effects models and recursive feature elimination combined with regularised logistic regression were used to associate signatures with immunogenicity and reactogenicity. FINDINGS Our results indicated that perturbation of gene expression peaked on day 1 and returned to baseline levels between day 7 and day 28. The magnitude of the response was dose-dependent, with vaccinees receiving a high dose (≥9 × 106 pfu) of rVSVΔG-ZEBOV-GP exhibiting the largest amplitude. The most differentially expressed genes that were significantly upregulated following vaccination consisted of type I and II interferon-related genes and myeloid cell-associated markers, whereas T cell, natural killer cell, and cytotoxicity-associated genes were downregulated. A gene signature associated with immunogenicity (common to all four cohorts) was identified correlating gene expression profiles with ZEBOV-GP antibody titres and a gene signatures associated with reactogenicity (Geneva cohort) was identified correlating gene expression profiles with an adverse event (ie, arthritis). INTERPRETATION Collectively, our results identify and cross-validate immune-related transcriptomic signatures induced by rVSVΔG-ZEBOV-GP vaccination in four cohorts of adult participants from different genetic and geographical backgrounds. These signatures will aid in the rational development, testing, and evaluation of novel vaccines and will allow evaluation of the effect of host factors such as age, co-infection, and comorbidity on responses to vaccines. FUNDING Innovative Medicines Initiative 2 Joint Undertaking.
Collapse
Affiliation(s)
- Eleonora Vianello
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands.
| | - Patricia Gonzalez-Dias
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Suzanne van Veen
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Carmen G Engele
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Edwin Quinten
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | | | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy; Sclavo Vaccines Association, Siena, Italy
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Angela Huttner
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland; Center for Vaccinology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Sheri Dubey
- Department of Vaccine and Biologics Research, Merck Research Laboratories, West Point, PA, USA
| | - Michael Eichberg
- Department of Vaccine and Biologics Research, Merck Research Laboratories, West Point, PA, USA
| | - Francis M Ndungu
- Department of Biosciences, KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Peter G Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institut für Tropenmedizin, Universitätsklinikum Tübingen, and German Center for Infection Research, Tübingen, Germany
| | - Paulin N Essone
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | - Selidji Todagbe Agnandji
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institut für Tropenmedizin, Universitätsklinikum Tübingen, and German Center for Infection Research, Tübingen, Germany
| | - Claire-Anne Siegrist
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland; Center for Vaccinology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Helder I Nakaya
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil; Scientific Platform Pasteur-USP, São Paulo, Brazil
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Mariëlle C Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| |
Collapse
|
22
|
Fiorino F, Sicuranza A, Ciabattini A, Santoni A, Pastore G, Simoncelli M, Polvere J, Galimberti S, Auddino S, Baratè C, Montagnani F, Sammartano V, Bocchia M, Medaglini D. The Slower Antibody Response in Myelofibrosis Patients after Two Doses of mRNA SARS-CoV-2 Vaccine Calls for a Third Dose. Biomedicines 2021; 9:1480. [PMID: 34680595 PMCID: PMC8533286 DOI: 10.3390/biomedicines9101480] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 09/21/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/22/2022] Open
Abstract
Immunization with mRNA SARS-CoV-2 vaccines has been highly recommended and prioritized in fragile subjects, including patients with myelofibrosis (MF). Available data on the vaccine immune response developed by MF patients and the impact of ruxolitinib treatment are still too fragmented to support an informed decision on a third dose for this category of subjects. Here, we show that 76% of MF patients develop spike-specific IgG after the second mRNA SARS-CoV-2 vaccine dose, but the response has a slower kinetics compared to healthy subjects, suggesting a reduced capability of their immune system to promptly react to vaccination. A reduced ACE2/RBD binding inhibition activity of spike-specific antibodies was also observed, especially in ruxolitinib-treated patients. Our results, showing slow kinetics of antibody responses in MF patients following vaccination with mRNA SARS-CoV-2 vaccines, support the need for a third vaccine dose.
Collapse
Affiliation(s)
- Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| | - Anna Sicuranza
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy; (A.S.); (A.S.); (M.S.); (V.S.)
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| | - Adele Santoni
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy; (A.S.); (A.S.); (M.S.); (V.S.)
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| | - Martina Simoncelli
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy; (A.S.); (A.S.); (M.S.); (V.S.)
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| | - Sara Galimberti
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (S.G.); (C.B.)
| | - Stefano Auddino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| | - Claudia Baratè
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (S.G.); (C.B.)
| | - Francesca Montagnani
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy;
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Vincenzo Sammartano
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy; (A.S.); (A.S.); (M.S.); (V.S.)
| | - Monica Bocchia
- Hematology Unit, Department of Medical Science, Surgery and Neuroscience, Azienda Ospedaliero Universitaria Senese, University of Siena, 53100 Siena, Italy; (A.S.); (A.S.); (M.S.); (V.S.)
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (A.C.); (G.P.); (J.P.); (S.A.)
| |
Collapse
|
23
|
Ciabattini A, Pastore G, Fiorino F, Polvere J, Lucchesi S, Pettini E, Auddino S, Rancan I, Durante M, Miscia M, Rossetti B, Fabbiani M, Montagnani F, Medaglini D. Evidence of SARS-CoV-2-Specific Memory B Cells Six Months After Vaccination With the BNT162b2 mRNA Vaccine. Front Immunol 2021; 12:740708. [PMID: 34650563 PMCID: PMC8505800 DOI: 10.3389/fimmu.2021.740708] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [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: 07/13/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022] Open
Abstract
SARS-CoV-2 mRNA vaccines have demonstrated high efficacy and immunogenicity, but limited information is currently available on memory B cell generation and long-term persistence. Here, we investigated spike-specific memory B cells and humoral responses in 145 subjects, up to 6 months after the BNT162b2 vaccine (Comirnaty) administration. Spike-specific antibodies peaked 7 days after the second dose and significant antibody titers and ACE2/RBD binding inhibiting activity were still observed after 6 months, despite a progressive decline over time. Concomitant to antibody reduction, spike-specific memory B cells, mostly IgG class-switched, increased in the blood of vaccinees and persisted 6 months after vaccination. Following the in vitro restimulation, circulating memory B cells reactivated and produced spike-specific antibodies. A high frequency of spike-specific IgG+ plasmablasts, identified by computational analysis 7 days after boost, positively correlated with the generation of IgG+ memory B cells at 6 months. These data demonstrate that mRNA BNT162b2 vaccine elicits strong B cell immunity with spike-specific memory B cells that still persist 6 months after vaccination, playing a crucial role for a rapid response to SARS-CoV-2 virus encounter.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Jacopo Polvere
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Stefano Auddino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Ilaria Rancan
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Miriam Durante
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Michele Miscia
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Barbara Rossetti
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Massimiliano Fabbiani
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Francesca Montagnani
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
- Department of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
24
|
Guerrini G, Vivi A, Gioria S, Ponti J, Magrì D, Hoeveler A, Medaglini D, Calzolai L. Physicochemical Characterization Cascade of Nanoadjuvant-Antigen Systems for Improving Vaccines. Vaccines (Basel) 2021; 9:vaccines9060544. [PMID: 34064212 PMCID: PMC8224364 DOI: 10.3390/vaccines9060544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/10/2021] [Revised: 05/09/2021] [Accepted: 05/17/2021] [Indexed: 01/25/2023] Open
Abstract
Adjuvants have been used for decades to enhance the immune response to vaccines, in particular for the subunit-based adjuvants. Physicochemical properties of the adjuvant-protein antigen complexes, such as size, morphology, protein structure and binding, influence the overall efficacy and safety of the vaccine. Here we show how to perform an accurate physicochemical characterization of the nanoaluminum-ovalbumin complex. Using a combination of existing techniques, we developed a multi-staged characterization strategy based on measurements of increased complexity. This characterization cascade has the advantage of being very flexible and easily adaptable to any adjuvant-protein antigen combinations. It will contribute to control the quality of antigen-adjuvant complexes and immunological outcomes, ultimately leading to improved vaccines.
Collapse
Affiliation(s)
- Giuditta Guerrini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.G.); (A.V.); (D.M.)
| | - Antonio Vivi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.G.); (A.V.); (D.M.)
| | - Sabrina Gioria
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.G.); (J.P.); (D.M.); (A.H.)
| | - Jessica Ponti
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.G.); (J.P.); (D.M.); (A.H.)
| | - Davide Magrì
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.G.); (J.P.); (D.M.); (A.H.)
| | - Arnd Hoeveler
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.G.); (J.P.); (D.M.); (A.H.)
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.G.); (A.V.); (D.M.)
| | - Luigi Calzolai
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.G.); (J.P.); (D.M.); (A.H.)
- Correspondence:
| |
Collapse
|
25
|
Vicenti I, Dragoni F, Monti M, Trombetta CM, Giannini A, Boccuto A, Saladini F, Rossetti B, De Luca A, Ciabattini A, Pastore G, Medaglini D, Orofino G, Montomoli E, Zazzi M. Maraviroc as a potential HIV-1 latency-reversing agent in cell line models and ex vivo CD4 T cells. J Gen Virol 2021; 102. [PMID: 33048041 DOI: 10.1099/jgv.0.001499] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Recent studies have suggested that the CCR5 antagonist maraviroc (MVC) may exert an HIV-1 latency reversal effect. This study aimed at defining MVC-mediated induction of HIV-1 in three cell line latency models and in ex vivo CD4 T cells from six patients with suppressed viraemia. HIV-1 induction was evaluated in TZM-bl cells by measuring HIV-1 LTR-driven luciferase expression, and in ACH-2 and U1 latently infected cell lines by measuring cell-free (CFR) and cell-associated (CAR) HIV-1 RNA by qPCR. NF-κB p65 was quantified in nuclear extracts by immunodetection. In ex vivo CD4 T cells, CAR, CFR and cell-associated DNA (CAD) were quantified at baseline and 1-7-14 days post-induction (T1, T7, T14). At T7 and T14, the infectivity of the CD4 T cells co-cultured with MOLT-4/CCR5 target cells was evaluated in the TZM-bl assay (TZA). Results were expressed as fold activation (FA) with respect to untreated cells. No LTR activation was observed in TZM-bl cells at any MVC concentration. NF-κB activation was only modestly upregulated (1.6±0.4) in TZM-bl cells with 5 µM MVC. Significant FA of HIV-1 expression was only detected at 80 µM MVC, namely on HIV-1 CFR in U1 (3.1±0.9; P=0.034) and ACH-2 cells (3.9±1.4; P=0.037). CFR was only weakly stimulated at 20 µM in ACH-2 (1.7±1.0 FA) cells and at 5 µM in U1 cells (1.9±0.5 FA). Although no consistent pattern of MVC-mediated activation was observed in ex vivo experiments, substantial FA values were detected sparsely on individual samples with different parameters. Notably, in one sample, MVC stimulated all parameters at T7 (2.3±0.2 CAD, 6.8±3.7 CAR, 18.7±16.7 CFR, 7.3±0.2 TZA). In conclusion, MVC variably induces HIV-1 production in some cell line models not previously used to test its latency reversal potential. In ex vivo CD4 T cells, MVC may exert patient-specific HIV-1 induction; however, clinically relevant patterns, if any, remain to be defined.
Collapse
Affiliation(s)
- Ilaria Vicenti
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Filippo Dragoni
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | | | - Alessia Giannini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Adele Boccuto
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Francesco Saladini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Barbara Rossetti
- Infectious Diseases Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Andrea De Luca
- Infectious Diseases Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy.,Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Gabiria Pastore
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Giancarlo Orofino
- Unit of Infectious Diseases, Division A, Ospedale Amedeo di Savoia, Turin, Italy
| | - Emanuele Montomoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.,VisMederi srl, Siena, Italy
| | - Maurizio Zazzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
26
|
Fiorino F, Pettini E, Koeberling O, Ciabattini A, Pozzi G, Martin LB, Medaglini D. Long-Term Anti-Bacterial Immunity against Systemic Infection by Salmonella enterica Serovar Typhimurium Elicited by a GMMA-Based Vaccine. Vaccines (Basel) 2021; 9:vaccines9050495. [PMID: 34065899 PMCID: PMC8150838 DOI: 10.3390/vaccines9050495] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 12/27/2022] Open
Abstract
Salmonella Typhimurium (STm) represents the most prevalent cause of invasive non-typhoidal Salmonella (iNTS) disease, and currently no licensed vaccine is available. In this work we characterized the long-term anti-bacterial immunity elicited by a STm vaccine based on Generalized Modules of Membrane Antigens (GMMA) delivering O:4,5 antigen, using a murine model of systemic infection. Subcutaneous immunization of mice with STmGMMA/Alhydrogel elicited rapid, high, and persistent antigen-specific serum IgG and IgM responses. The serum was bactericidal in vitro. O:4,5-specific IgG were also detected in fecal samples after immunization and positively correlated with IgG observed in intestinal washes. Long-lived plasma cells and O:4,5-specific memory B cells were detected in spleen and bone marrow. After systemic STm challenge, a significant reduction of bacterial load in blood, spleen, and liver, as well as a reduction of circulating neutrophils and G-CSF glycoprotein was observed in STmGMMA/Alhydrogel immunized mice compared to untreated animals. Taken together, these data support the development of a GMMA-based vaccine for prevention of iNTS disease.
Collapse
Affiliation(s)
- Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (E.P.); (A.C.); (G.P.)
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (E.P.); (A.C.); (G.P.)
| | - Oliver Koeberling
- GSK Vaccines Institute for Global Health S.r.l., 53100 Siena, Italy;
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (E.P.); (A.C.); (G.P.)
| | - Gianni Pozzi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (E.P.); (A.C.); (G.P.)
| | - Laura B. Martin
- GSK Vaccines Institute for Global Health S.r.l., 53100 Siena, Italy;
- Correspondence: (L.B.M.); (D.M.); Tel.: +39-577-245362 (L.B.M.); +39-577-233307 (D.M.)
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (F.F.); (E.P.); (A.C.); (G.P.)
- Correspondence: (L.B.M.); (D.M.); Tel.: +39-577-245362 (L.B.M.); +39-577-233307 (D.M.)
| |
Collapse
|
27
|
Pettini E, Pastore G, Fiorino F, Medaglini D, Ciabattini A. Short or Long Interval between Priming and Boosting: Does It Impact on the Vaccine Immunogenicity? Vaccines (Basel) 2021; 9:vaccines9030289. [PMID: 33804604 PMCID: PMC8003773 DOI: 10.3390/vaccines9030289] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/04/2023] Open
Abstract
Characterizing the impact of the vaccination schedule on the induction of B and T cell immune responses is critical for improving vaccine immunogenicity. Here we compare the effect of a short (4 weeks) or a long (18 weeks) interval between priming and boosting in mice, using a model vaccine formulation based on the chimeric tuberculosis vaccine antigen H56 combined with alum. While no significant difference was observed in serum antigen-specific IgG response and the induction of antigen-specific T follicular helper cells into draining lymph nodes after the two immunization schedules, a longer interval between priming and boosting elicited a higher number of germinal center-B cells and H56-specific antibody-secreting cells and modulated the effector function of reactivated CD4+ T cells. These data show that the scheduling of the booster immunization could affect the immune response elicited by vaccination modulating and improving the immunogenicity of the vaccine.
Collapse
|
28
|
Pejoski D, de Rham C, Martinez-Murillo P, Santoro F, Auderset F, Medaglini D, Pozzi G, Vono M, Lambert PH, Huttner A, Haks MC, Ottenhoff THM, Villard J, Siegrist CA. Erratum: Author Correction: Rapid dose-dependent Natural Killer (NK) cell modulation and cytokine responses following human rVSV-ZEBOV Ebolavirus vaccination. NPJ Vaccines 2020; 5:93. [PMID: 33083028 PMCID: PMC7538936 DOI: 10.1038/s41541-020-00244-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- David Pejoski
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Casimir de Rham
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Immunology and Transplantation Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Paola Martinez-Murillo
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Francesco Santoro
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Floriane Auderset
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gianni Pozzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Maria Vono
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Paul-Henri Lambert
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Angela Huttner
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Infectious Diseases Service, Geneva University Hospitals, Geneva, Switzerland
| | - Mariëlle C Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Jean Villard
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Immunology and Transplantation Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Claire-Anne Siegrist
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | | | | |
Collapse
|
29
|
Ciabattini A, Garagnani P, Santoro F, Rappuoli R, Franceschi C, Medaglini D. Shelter from the cytokine storm: pitfalls and prospects in the development of SARS-CoV-2 vaccines for an elderly population. Semin Immunopathol 2020; 42:619-634. [PMID: 33159214 PMCID: PMC7646713 DOI: 10.1007/s00281-020-00821-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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: 07/12/2020] [Accepted: 09/28/2020] [Indexed: 02/07/2023]
Abstract
The SARS-CoV-2 pandemic urgently calls for the development of effective preventive tools. COVID-19 hits greatly the elder and more fragile fraction of the population boosting the evergreen issue of the vaccination of older people. The development of a vaccine against SARS-CoV-2 tailored for the elderly population faces the challenge of the poor immune responsiveness of the older population due to immunosenescence, comorbidities, and pharmacological treatments. Moreover, it is likely that the inflammaging phenotype associated with age could both influence vaccination efficacy and exacerbate the risk of COVID-19-related "cytokine storm syndrome" with an overlap between the factors which impact vaccination effectiveness and those that boost virulence and worsen the prognosis of SARS-CoV-2 infection. The complex and still unclear immunopathological mechanisms of SARS-CoV-2 infection, together with the progressive age-related decline of immune responses, and the lack of clear correlates of protection, make the design of vaccination strategies for older people extremely challenging. In the ongoing effort in vaccine development, different SARS-CoV-2 vaccine candidates have been developed, tested in pre-clinical and clinical studies and are undergoing clinical testing, but only a small fraction of these are currently being tested in the older fraction of the population. Recent advances in systems biology integrating clinical, immunologic, and omics data can help to identify stable and robust markers of vaccine response and move towards a better understanding of SARS-CoV-2 vaccine responses in the elderly.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Paolo Garagnani
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institute at Huddinge University Hospital, SE-171 77, Stockholm, Sweden
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40139, Bologna, Italy
- Interdepartmental Centre 'L. Galvan' (CIG), University of Bologna, Via G. Petroni 26, 40139, Bologna, Italy
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Rino Rappuoli
- GSK, Siena, Italy
- vAMRes Lab, Toscana Life Sciences, Siena, Italy
- Faculty of Medicine, Imperial College, London, UK
| | | | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, Siena, Italy.
| |
Collapse
|
30
|
Medaglini D, Andersen P, Rappuoli R. Editorial: Advanced Immunization Technologies for Next Generation Vaccines. Front Immunol 2020; 11:878. [PMID: 32435250 PMCID: PMC7218171 DOI: 10.3389/fimmu.2020.00878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 12/28/2022] Open
Affiliation(s)
- Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark
| | - Rino Rappuoli
- GSK, Siena, Italy.,vAMRes Lab, Toscana Life Sciences, Siena, Italy.,Imperial College, London, United Kingdom
| |
Collapse
|
31
|
Pejoski D, de Rham C, Martinez-Murillo P, Santoro F, Auderset F, Medaglini D, Pozzi G, Vono M, Lambert PH, Huttner A, Haks MC, Ottenhoff THM, Villard J, Siegrist CA. Rapid dose-dependent Natural Killer (NK) cell modulation and cytokine responses following human rVSV-ZEBOV Ebolavirus vaccination. NPJ Vaccines 2020; 5:32. [PMID: 32337075 PMCID: PMC7156503 DOI: 10.1038/s41541-020-0179-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/06/2020] [Indexed: 12/31/2022] Open
Abstract
The rVSV-ZEBOV Ebolavirus vaccine confers protection within days after immunization, suggesting the contribution of innate immune responses. We report modulation of rVSV-ZEBOV vaccinee blood CD56+ NK cell numbers, NKG2D or NKp30 surface receptor expression, Killer Immunoglobulin-like Receptor (KIR)+ cell percentages and NK-cell-related genes on day 1 post immunization. Inverse correlations existed between the concentration of several plasma cytokines and inhibitory KIR+ CD56dim or cytokine-responsive CD56bright NK cells. Thus, NK cells may contribute to the early protective efficacy of rVSV-ZEBOV in humans.
Collapse
Affiliation(s)
- David Pejoski
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Casimir de Rham
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Immunology and Transplantation Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Paola Martinez-Murillo
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Francesco Santoro
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Floriane Auderset
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Donata Medaglini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gianni Pozzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Maria Vono
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Paul-Henri Lambert
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Angela Huttner
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Infectious Diseases Service, Geneva University Hospitals, Geneva, Switzerland
| | - Mariëlle C. Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom H. M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Jean Villard
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Immunology and Transplantation Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Claire-Anne Siegrist
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- World Health Organization Collaborating Centre for Vaccine Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| |
Collapse
|
32
|
Lucchesi S, Furini S, Medaglini D, Ciabattini A. From Bivariate to Multivariate Analysis of Cytometric Data: Overview of Computational Methods and Their Application in Vaccination Studies. Vaccines (Basel) 2020; 8:vaccines8010138. [PMID: 32244919 PMCID: PMC7157606 DOI: 10.3390/vaccines8010138] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 02/27/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/15/2022] Open
Abstract
Flow and mass cytometry are used to quantify the expression of multiple extracellular or intracellular molecules on single cells, allowing the phenotypic and functional characterization of complex cell populations. Multiparametric flow cytometry is particularly suitable for deep analysis of immune responses after vaccination, as it allows to measure the frequency, the phenotype, and the functional features of antigen-specific cells. When many parameters are investigated simultaneously, it is not feasible to analyze all the possible bi-dimensional combinations of marker expression with classical manual analysis and the adoption of advanced automated tools to process and analyze high-dimensional data sets becomes necessary. In recent years, the development of many tools for the automated analysis of multiparametric cytometry data has been reported, with an increasing record of publications starting from 2014. However, the use of these tools has been preferentially restricted to bioinformaticians, while few of them are routinely employed by the biomedical community. Filling the gap between algorithms developers and final users is fundamental for exploiting the advantages of computational tools in the analysis of cytometry data. The potentialities of automated analyses range from the improvement of the data quality in the pre-processing steps up to the unbiased, data-driven examination of complex datasets using a variety of algorithms based on different approaches. In this review, an overview of the automated analysis pipeline is provided, spanning from the pre-processing phase to the automated population analysis. Analysis based on computational tools might overcame both the subjectivity of manual gating and the operator-biased exploration of expected populations. Examples of applications of automated tools that have successfully improved the characterization of different cell populations in vaccination studies are also presented.
Collapse
Affiliation(s)
- Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (S.L.); (D.M.)
| | - Simone Furini
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy;
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (S.L.); (D.M.)
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (S.L.); (D.M.)
- Correspondence:
| |
Collapse
|
33
|
Jawinski K, Hartmann M, Singh C, Kinnear E, Busse DC, Ciabattini A, Fiorino F, Medaglini D, Trombetta CM, Montomoli E, Contreras V, Le Grand R, Coiffier C, Primard C, Verrier B, Tregoning JS. Recombinant Haemagglutinin Derived From the Ciliated Protozoan Tetrahymena thermophila Is Protective Against Influenza Infection. Front Immunol 2019; 10:2661. [PMID: 31798589 PMCID: PMC6863932 DOI: 10.3389/fimmu.2019.02661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/05/2019] [Accepted: 10/28/2019] [Indexed: 12/14/2022] Open
Abstract
Current influenza vaccines manufactured using eggs have considerable limitations, both in terms of scale up production and the potential impact passaging through eggs can have on the antigenicity of the vaccine virus strains. Alternative methods of manufacture are required, particularly in the context of an emerging pandemic strain. Here we explore the production of recombinant influenza haemagglutinin using the ciliated protozoan Tetrahymena thermophila. For the first time we were able to produce haemagglutinin from both seasonal influenza A and B strains. This ciliate derived material was immunogenic, inducing an antibody response in both mice and non-human primates. Mice immunized with ciliate derived haemagglutinin were protected against challenge with homologous influenza A or B viruses. The antigen could also be combined with submicron particles containing a Nod2 ligand, significantly boosting the immune response and reducing the dose of antigen required. Thus, we show that Tetrahymena can be used as a manufacturing platform for viral vaccine antigens.
Collapse
Affiliation(s)
| | | | - Charanjit Singh
- Department of Infectious Disease, St Mary's Campus, Imperial College London, London, United Kingdom
| | - Ekaterina Kinnear
- Department of Infectious Disease, St Mary's Campus, Imperial College London, London, United Kingdom
| | - David C Busse
- Department of Infectious Disease, St Mary's Campus, Imperial College London, London, United Kingdom
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Emanuele Montomoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.,VisMederi s.r.l., Siena, Italy
| | - Vanessa Contreras
- CEA-Université Paris Sud 11-INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Le Kremlin-Bicêtre, France
| | - Roger Le Grand
- CEA-Université Paris Sud 11-INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Le Kremlin-Bicêtre, France
| | - Celine Coiffier
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, UMR 5305, Université Lyon 1, CNRS, IBCP, Lyon, France
| | | | | | - John S Tregoning
- Department of Infectious Disease, St Mary's Campus, Imperial College London, London, United Kingdom
| |
Collapse
|
34
|
Lucchesi S, Nolfi E, Pettini E, Pastore G, Fiorino F, Pozzi G, Medaglini D, Ciabattini A. Computational Analysis of Multiparametric Flow Cytometric Data to Dissect B Cell Subsets in Vaccine Studies. Cytometry A 2019; 97:259-267. [PMID: 31710181 PMCID: PMC7079172 DOI: 10.1002/cyto.a.23922] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 05/22/2019] [Revised: 09/11/2019] [Accepted: 10/07/2019] [Indexed: 01/03/2023]
Abstract
The generation of the B cell response upon vaccination is characterized by the induction of different functional and phenotypic subpopulations and is strongly dependent on the vaccine formulation, including the adjuvant used. Here, we have profiled the different B cell subsets elicited upon vaccination, using machine learning methods for interpreting high‐dimensional flow cytometry data sets. The B cell response elicited by an adjuvanted vaccine formulation, compared to the antigen alone, was characterized using two automated methods based on clustering (FlowSOM) and dimensional reduction (t‐SNE) approaches. The clustering method identified, based on multiple marker expression, different B cell populations, including plasmablasts, plasma cells, germinal center B cells and their subsets, while this profiling was more difficult with t‐SNE analysis. When undefined phenotypes were detected, their characterization could be improved by integrating the t‐SNE spatial visualization of cells with the FlowSOM clusters. The frequency of some cellular subsets, in particular plasma cells, was significantly higher in lymph nodes of mice primed with the adjuvanted formulation compared to antigen alone. Thanks to this automatic data analysis it was possible to identify, in an unbiased way, different B cell populations and also intermediate stages of cell differentiation elicited by immunization, thus providing a signature of B cell recall response that can be hardly obtained with the classical bidimensional gating analysis. © 2019 The Authors. Cytometry Part A published by Wiley Periodicals, Inc. on behalf of International Society for Advancement of Cytometry.
Collapse
Affiliation(s)
- Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Emanuele Nolfi
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Gianni Pozzi
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology (LA.M.M.B.), Department of Medical BiotechnologiesUniversity of SienaSienaItaly
| |
Collapse
|
35
|
Pastore G, Carraro M, Pettini E, Nolfi E, Medaglini D, Ciabattini A. Optimized Protocol for the Detection of Multifunctional Epitope-Specific CD4 + T Cells Combining MHC-II Tetramer and Intracellular Cytokine Staining Technologies. Front Immunol 2019; 10:2304. [PMID: 31649661 PMCID: PMC6794358 DOI: 10.3389/fimmu.2019.02304] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 03/15/2019] [Accepted: 09/11/2019] [Indexed: 12/20/2022] Open
Abstract
Analysis of multifunctional CD4+ T cells is fundamental for characterizing the immune responses to vaccination or infection. Major histocompatibility complex (MHC)/peptide tetramers represent a powerful technology for the detection of antigen-specific T cells by specific binding to their T-cell receptor, and their combination with functional assays is fundamental for characterizing the antigen-specific immune response. Here we optimized a protocol for the detection of multiple intracellular cytokines within epitope-specific CD4+ T cells identified by the MHC class II tetramer technology. The optimal procedure for assessing the functional activity of tetramer-binding CD4+ T cells was based on the simultaneous intracellular staining with both MHC tetramers and cytokine-specific antibodies upon in vitro restimulation of cells with the vaccine antigen. The protocol was selected among procedures that differently combine the steps of cellular restimulation and tetramer staining with intracellular cytokine labeling. This method can be applied to better understand the complex functional profile of CD4+ T-cell responses upon vaccination or infection.
Collapse
Affiliation(s)
- Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Monica Carraro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Emanuele Nolfi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
36
|
Ciabattini A, Olivieri R, Lazzeri E, Medaglini D. Role of the Microbiota in the Modulation of Vaccine Immune Responses. Front Microbiol 2019; 10:1305. [PMID: 31333592 PMCID: PMC6616116 DOI: 10.3389/fmicb.2019.01305] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [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: 02/12/2019] [Accepted: 05/27/2019] [Indexed: 12/12/2022] Open
Abstract
The human immune system and the microbiota co-evolve, and their balanced relationship is based on crosstalk between the two systems through the course of life. This tight association and the overall composition and richness of the microbiota play an important role in the modulation of host immunity and may impact the immune response to vaccination. The availability of innovative technologies, such as next-generation sequencing (NGS) and correlated bioinformatics tools, allows a deeper investigation of the crosstalk between the microbiota and human immune responses. This review discusses the current knowledge on the influence of the microbiota on the immune response to vaccination and novel tools to deeply analyze the impact of the microbiome on vaccine responses.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Raffaela Olivieri
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elisa Lazzeri
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
37
|
Ciabattini A, Nardini C, Santoro F, Garagnani P, Franceschi C, Medaglini D. Vaccination in the elderly: The challenge of immune changes with aging. Semin Immunol 2019; 40:83-94. [PMID: 30501873 DOI: 10.1016/j.smim.2018.10.010] [Citation(s) in RCA: 235] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 12/13/2022]
Abstract
The unprecedented increase of life expectancy challenges society to protect the elderly from morbidity and mortality making vaccination a crucial mean to safeguard this population. Indeed, infectious diseases, such as influenza and pneumonia, are among the top killers of elderly people in the world. Elderly individuals are more prone to severe infections and less responsive to vaccination prevention, due to immunosenescence combined with the progressive increase of a proinflammatory status characteristic of the aging process (inflammaging). These factors are responsible for most age-related diseases and correlate with poor response to vaccination. Therefore, it is of utmost interest to deepen the knowledge regarding the role of inflammaging in vaccination responsiveness to support the development of effective vaccination strategies designed for elderly. In this review we analyse the impact of age-associated factors such as inflammaging, immunosenescence and immunobiography on immune response to vaccination in the elderly, and we consider systems biology approaches as a mean for integrating a multitude of data in order to rationally design vaccination approaches specifically tailored for the elderly.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Christine Nardini
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, SE-171 77, Stockholm, Sweden; Personal Genomics S.r.l., Via Roveggia, 43B, 37134, Verona, Italy; CNR IAC "Mauro Picone", Via dei Taurini, 19, 00185, Roma, Italy
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Paolo Garagnani
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, SE-171 77, Stockholm, Sweden; Interdepartmental Centre 'L. Galvani' (CIG), University of Bologna, Via G. Petroni 26, 40139, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine (DIMES) - University of Bologna,40139, Bologna, Italy
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, Via Altura 3, 40139, Bologna, Italy.
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy.
| |
Collapse
|
38
|
Abstract
The unprecedented increase of life expectancy challenges society to protect the elderly from morbidity and mortality making vaccination a crucial mean to safeguard this population. Indeed, infectious diseases, such as influenza and pneumonia, are among the top killers of elderly people in the world. Elderly individuals are more prone to severe infections and less responsive to vaccination prevention, due to immunosenescence combined with the progressive increase of a proinflammatory status characteristic of the aging process (inflammaging). These factors are responsible for most age-related diseases and correlate with poor response to vaccination. Therefore, it is of utmost interest to deepen the knowledge regarding the role of inflammaging in vaccination responsiveness to support the development of effective vaccination strategies designed for elderly. In this review we analyse the impact of age-associated factors such as inflammaging, immunosenescence and immunobiography on immune response to vaccination in the elderly, and we consider systems biology approaches as a mean for integrating a multitude of data in order to rationally design vaccination approaches specifically tailored for the elderly.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Christine Nardini
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, SE-171 77, Stockholm, Sweden; Personal Genomics S.r.l., Via Roveggia, 43B, 37134, Verona, Italy; CNR IAC "Mauro Picone", Via dei Taurini, 19, 00185, Roma, Italy
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Paolo Garagnani
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, SE-171 77, Stockholm, Sweden; Interdepartmental Centre 'L. Galvani' (CIG), University of Bologna, Via G. Petroni 26, 40139, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine (DIMES) - University of Bologna,40139, Bologna, Italy
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, Via Altura 3, 40139, Bologna, Italy.
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 16, 53100, Siena, Italy.
| |
Collapse
|
39
|
Medaglini D, Santoro F, Siegrist CA. Correlates of vaccine-induced protective immunity against Ebola virus disease. Semin Immunol 2018; 39:65-72. [DOI: 10.1016/j.smim.2018.07.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/10/2018] [Accepted: 07/13/2018] [Indexed: 10/28/2022]
|
40
|
Santoro F, Pettini E, Kazmin D, Ciabattini A, Fiorino F, Gilfillan GD, Evenroed IM, Andersen P, Pozzi G, Medaglini D. Transcriptomics of the Vaccine Immune Response: Priming With Adjuvant Modulates Recall Innate Responses After Boosting. Front Immunol 2018; 9:1248. [PMID: 29922291 PMCID: PMC5996052 DOI: 10.3389/fimmu.2018.01248] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 12/22/2017] [Accepted: 05/18/2018] [Indexed: 12/17/2022] Open
Abstract
Transcriptomic profiling of the immune response induced by vaccine adjuvants is of critical importance for the rational design of vaccination strategies. In this study, transcriptomics was employed to profile the effect of the vaccine adjuvant used for priming on the immune response following re-exposure to the vaccine antigen alone. Mice were primed with the chimeric vaccine antigen H56 of Mycobacterium tuberculosis administered alone or with the CAF01 adjuvant and boosted with the antigen alone. mRNA sequencing was performed on blood samples collected 1, 2, and 7 days after priming and after boosting. Gene expression analysis at day 2 after priming showed that the CAF01 adjuvanted vaccine induced a stronger upregulation of the innate immunity modules compared with the unadjuvanted formulation. The immunostimulant effect of the CAF01 adjuvant, used in the primary immunization, was clearly seen after a booster immunization with a low dose of antigen alone. One day after boost, we observed a strong upregulation of multiple genes in blood of mice primed with H56 + CAF01 compared with mice primed with the H56 alone. In particular, blood transcription modules related to innate immune response, such as monocyte and neutrophil recruitment, activation of antigen-presenting cells, and interferon response were activated. Seven days after boost, differential expression of innate response genes faded while a moderate differential expression of T cell activation modules was appreciable. Indeed, immunological analysis showed a higher frequency of H56-specific CD4+ T cells and germinal center B cells in draining lymph nodes, a strong H56-specific humoral response and a higher frequency of antibody-secreting cells in spleen of mice primed with H56 + CAF01. Taken together, these data indicate that the adjuvant used for priming strongly reprograms the immune response that, upon boosting, results in a stronger recall innate response essential for shaping the downstream adaptive response.
Collapse
Affiliation(s)
- Francesco Santoro
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Elena Pettini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Dmitri Kazmin
- Emory Vaccine Center, Emory University, Atlanta, GA, United States
| | - Annalisa Ciabattini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Fabio Fiorino
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Gregor D Gilfillan
- Department of Medical Genetics, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - Ida M Evenroed
- Department of Medical Genetics, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark
| | - Gianni Pozzi
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| |
Collapse
|
41
|
Ciabattini A, Pettini E, Fiorino F, Lucchesi S, Pastore G, Brunetti J, Santoro F, Andersen P, Bracci L, Pozzi G, Medaglini D. Heterologous Prime-Boost Combinations Highlight the Crucial Role of Adjuvant in Priming the Immune System. Front Immunol 2018; 9:380. [PMID: 29593710 PMCID: PMC5857569 DOI: 10.3389/fimmu.2018.00380] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 11/30/2017] [Accepted: 02/12/2018] [Indexed: 12/21/2022] Open
Abstract
The induction and modulation of the immune response to vaccination can be rationally designed by combining different vaccine formulations for priming and boosting. Here, we investigated the impact of heterologous prime-boost approaches on the vaccine-specific cellular and humoral responses specific for a mycobacterial vaccine antigen. C57BL/6 mice were primed with the chimeric vaccine antigen H56 administered alone or with the CAF01 adjuvant, and boosted with H56 alone, or combined with CAF01 or with the squalene-based oil-in-water emulsion adjuvant (o/w squalene). A strong secondary H56-specific CD4+ T cell response was recalled by all the booster vaccine formulations when mice had been primed with H56 and CAF01, but not with H56 alone. The polyfunctional nature of T helper cells was analyzed and visualized with the multidimensional flow cytometry FlowSOM software, implemented as a package of the R environment. A similar cytokine profile was detected in groups primed with H56 + CAF01 and boosted with or without adjuvant, except for some clusters of cells expressing high level of IL-17 together with TNF-α, IL-2, and IFN-γ, that were significantly upregulated only in groups boosted with the adjuvants. On the contrary, the comparison between groups primed with or without the adjuvant showed a completely different clusterization of cells, strengthening the impact of the formulation used for primary immunization on the profiling of responding cells. The presence of the CAF01 adjuvant in the priming formulation deeply affected also the secondary humoral response, especially in groups boosted with H56 alone or o/w squalene. In conclusion, the presence of CAF01 adjuvant in the primary immunization is crucial for promoting primary T and B cell responses that can be efficiently reactivated by booster immunization also performed with antigen alone.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Simone Lucchesi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Jlenia Brunetti
- U&E PreMed Laboratory, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institute, Copenhagen, Denmark
| | - Luisa Bracci
- U&E PreMed Laboratory, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Gianni Pozzi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| |
Collapse
|
42
|
Medaglini D, De Azero MR, Leroy O, Bietrix F, Denoel P. Innovation Partnership for a Roadmap on Vaccines in Europe (IPROVE): A vision for the vaccines of tomorrow. Vaccine 2018; 36:1136-1145. [PMID: 29395517 DOI: 10.1016/j.vaccine.2017.11.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 11/22/2017] [Indexed: 12/21/2022]
Abstract
A clear vision for vaccines research and development (R&D) is needed if Europe is to continue to lead the discovery of next generation vaccines. Innovation Partnership for a Roadmap on Vaccines in Europe (IPROVE) is a collaboration between leading vaccine experts to develop a roadmap setting out how Europe can best invest in the science and technology essential for vaccines innovation. This FP7 project, started in December 2013, brought together more than 130 key public and private stakeholders from academia, public health institutes, regulators, industry and small and medium-sized enterprises to determine and prioritise the gaps and challenges to be addressed to bolster innovation in vaccines and vaccination in Europe. The IPROVE consultation process was structured around seven themes: vaccine R&D, manufacturing and quality control, infrastructure, therapeutic vaccines, needs of small and medium-sized enterprises, vaccines acceptance and training needs. More than 80 recommendations were made by the consultation groups, mainly focused on the need for a multidisciplinary research approach to stimulate innovation, accelerated translation of scientific knowledge into technological innovation, and fostering of real collaboration within the European vaccine ecosystem. The consultation also reinforced the fact that vaccines are only as good as their vaccine implementation programmes, and that more must be done to understand and address vaccination hesitancy of both the general public and healthcare professionals. Bringing together a wide range of stakeholders to work on the IPROVE roadmap has increased mutual understanding of their different perspectives, needs and priorities. IPROVE is a first attempt to develop such a comprehensive view of the vaccine sector. This prioritisation effort, aims to help policy-makers and funders identify those vaccine-related areas and technologies where key investment is needed for short and medium-long term success.
Collapse
Affiliation(s)
- Donata Medaglini
- University of Siena, Department of Medical Biotechnologies, Viale Bracci, 53100 Siena, Italy; Sclavo Vaccines Association, Via Fiorentina 1, 53100 Siena, Italy.
| | | | - Odile Leroy
- European Vaccine Initiative, UniversitätsKlinikum Heidelberg, Voßstraße 2, Geb. 4040, 69115 Heidelberg, Germany
| | - Florence Bietrix
- EATRIS ERIC, De Boelelaan 1118, 1081 HZ Amsterdam, The Netherlands
| | - Philippe Denoel
- GSK Vaccines, Rue de l'Institut 89, 1330 Rixensart, Belgium(1)
| |
Collapse
|
43
|
Huttner A, Combescure C, Grillet S, Haks MC, Quinten E, Modoux C, Agnandji ST, Brosnahan J, Dayer JA, Harandi AM, Kaiser L, Medaglini D, Monath T, Roux-Lombard P, Kremsner PG, Ottenhoff THM, Siegrist CA. A dose-dependent plasma signature of the safety and immunogenicity of the rVSV-Ebola vaccine in Europe and Africa. Sci Transl Med 2017; 9:9/385/eaaj1701. [PMID: 28404856 DOI: 10.1126/scitranslmed.aaj1701] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 12/05/2016] [Accepted: 03/15/2017] [Indexed: 12/17/2022]
Abstract
The 2014-2015 Ebola epidemic affected several African countries, claiming more than 11,000 lives and leaving thousands with ongoing sequelae. Safe and effective vaccines could prevent or limit future outbreaks. The recombinant vesicular stomatitis virus-vectored Zaire Ebola (rVSV-ZEBOV) vaccine has shown marked immunogenicity and efficacy in humans but is reactogenic at higher doses. To understand its effects, we examined plasma samples from 115 healthy volunteers from Geneva who received low-dose (LD) or high-dose (HD) vaccine or placebo. Fifteen plasma chemokines/cytokines were assessed at baseline and on days 1, 2 to 3, and 7 after injection. Significant increases in monocyte-mediated MCP-1/CCL2, MIP-1β/CCL4, IL-6, TNF-α, IL-1Ra, and IL-10 occurred on day 1. A signature explaining 68% of cytokine/chemokine vaccine-response variability was identified. Its score was higher in HD versus LD vaccinees and was associated positively with vaccine viremia and negatively with cytopenia. It was higher in vaccinees with injection-site pain, fever, myalgia, chills, and headache; higher scores reflected increasing severity. In contrast, HD vaccinees who subsequently developed arthritis had lower day 1 scores than other HD vaccinees. Vaccine dose did not influence the signature despite its influence on specific outcomes. The Geneva-derived signature associated strongly (ρ = 0.97) with that of a cohort of 75 vaccinees from a parallel trial in Lambaréné, Gabon. Its score in Geneva HD vaccinees with subsequent arthritis was significantly lower than that in Lambaréné HD vaccinees, none of whom experienced arthritis. This signature, which reveals monocytes' critical role in rVSV-ZEBOV immunogenicity and safety across doses and continents, should prove useful in assessments of other vaccines.
Collapse
Affiliation(s)
- Angela Huttner
- Infection Control Program, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland.,Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland.,Center for Vaccinology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Christophe Combescure
- Division of Clinical Epidemiology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Stéphane Grillet
- World Health Organization Collaborating Center for Vaccine Immunology, Faculty of Medicine, Geneva, Switzerland
| | - Mariëlle C Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Edwin Quinten
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Christine Modoux
- Division of Immunology and Allergy, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Selidji Todagbe Agnandji
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Universitätsklinikum Tübingen, and German Center for Infection Research, Tübingen, Germany
| | | | - Julie-Anne Dayer
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Ali M Harandi
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Laurent Kaiser
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Sclavo Vaccines Association, Siena, Italy
| | - Tom Monath
- NewLink Genetics Corp., 94 Jackson Road, Devens, MA 01439, USA
| | | | - Pascale Roux-Lombard
- Division of Immunology and Allergy, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Peter G Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Universitätsklinikum Tübingen, and German Center for Infection Research, Tübingen, Germany
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Claire-Anne Siegrist
- Center for Vaccinology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland. .,World Health Organization Collaborating Center for Vaccine Immunology, Faculty of Medicine, Geneva, Switzerland
| |
Collapse
|
44
|
Medaglini D, Siegrist CA. Immunomonitoring of human responses to the rVSV-ZEBOV Ebola vaccine. Curr Opin Virol 2017; 23:88-94. [PMID: 28460340 DOI: 10.1016/j.coviro.2017.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/05/2017] [Accepted: 03/15/2017] [Indexed: 11/27/2022]
Abstract
The rVSV-ZEBOV vaccine is currently the only Ebola vaccine with demonstrated clinical efficacy in a ring-vaccination clinical trial. It has been shown to be reactogenic but immunogenic and safe in several Phase I clinical studies. However, its mechanisms of protection are unknown and available immunogenicity data are mostly limited to classical serological analysis; it is now of paramount importance to apply cutting-edge technologies, including transcriptomic and metabolomic analyses, and to perform integrative analyses with standard serology and clinical data to comprehensively profile the rVSV-ZEBOV immune signature.
Collapse
Affiliation(s)
- Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Claire-Anne Siegrist
- World Health Organization Collaborating Center for Vaccine Immunology, Departments of Pathology-Immunology, University of Geneva, 1211 Geneva, Switzerland.
| |
Collapse
|
45
|
Fiorino F, Rondini S, Micoli F, Lanzilao L, Alfini R, Mancini F, MacLennan CA, Medaglini D. Immunogenicity of a Bivalent Adjuvanted Glycoconjugate Vaccine against Salmonella Typhimurium and Salmonella Enteritidis. Front Immunol 2017; 8:168. [PMID: 28289411 PMCID: PMC5326758 DOI: 10.3389/fimmu.2017.00168] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 09/23/2016] [Accepted: 02/02/2017] [Indexed: 12/12/2022] Open
Abstract
Salmonella enterica serovars Typhimurium and Enteritidis are the predominant causes of invasive non-typhoidal Salmonella (iNTS) disease. Considering the co-endemicity of S. Typhimurium and S. Enteritidis, a bivalent vaccine formulation against both pathogens is necessary for protection against iNTS disease, thus investigation of glycoconjugate combination is required. In the present work, we investigated the immune responses induced by S. Typhimurium and S. Enteritidis monovalent and bivalent glycoconjugate vaccines adjuvanted with aluminum hydroxide (alum) only or in combination with cytosine-phosphorothioate-guanine oligodeoxynucleotide (CpG). Humoral and cellular, systemic and local, immune responses were characterized in two different mouse strains. All conjugate vaccines elicited high levels of serum IgG against the respective O-antigens (OAg) with bactericidal activity. The bivalent conjugate vaccine induced systemic production of antibodies against both S. Typhimurium and S. Enteritidis OAg. The presence of alum or alum + CpG adjuvants in vaccine formulations significantly increased the serum antigen-specific antibody production. The alum + CpG bivalent vaccine formulation triggered the highest systemic anti-OAg antibodies and also a significant increase of anti-OAg IgG in intestinal washes and fecal samples, with a positive correlation with serum levels. These data demonstrate the ability of monovalent and bivalent conjugate vaccines against S. Typhimurium and S. Enteritidis to induce systemic and local immune responses in different mouse strains, and highlight the suitability of a bivalent glycoconjugate formulation, especially when adjuvanted with alum + CpG, as a promising candidate vaccine against iNTS disease.
Collapse
Affiliation(s)
- Fabio Fiorino
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena , Siena , Italy
| | - Simona Rondini
- GSK Vaccines Institute for Global Health S.r.l. (formerly Novartis Vaccines Institute for Global Health S.r.l.) , Siena , Italy
| | - Francesca Micoli
- GSK Vaccines Institute for Global Health S.r.l. (formerly Novartis Vaccines Institute for Global Health S.r.l.) , Siena , Italy
| | - Luisa Lanzilao
- GSK Vaccines Institute for Global Health S.r.l. (formerly Novartis Vaccines Institute for Global Health S.r.l.) , Siena , Italy
| | - Renzo Alfini
- GSK Vaccines Institute for Global Health S.r.l. (formerly Novartis Vaccines Institute for Global Health S.r.l.) , Siena , Italy
| | - Francesca Mancini
- GSK Vaccines Institute for Global Health S.r.l. (formerly Novartis Vaccines Institute for Global Health S.r.l.) , Siena , Italy
| | - Calman A MacLennan
- Jenner Institute, Nuffield Department of Medicine, University of Oxford , Oxford , UK
| | - Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena , Siena , Italy
| |
Collapse
|
46
|
Ciabattini A, Pettini E, Fiorino F, Pastore G, Andersen P, Pozzi G, Medaglini D. Modulation of Primary Immune Response by Different Vaccine Adjuvants. Front Immunol 2016; 7:427. [PMID: 27781036 PMCID: PMC5066114 DOI: 10.3389/fimmu.2016.00427] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [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: 08/08/2016] [Accepted: 09/28/2016] [Indexed: 01/09/2023] Open
Abstract
Adjuvants contribute to enhancing and shaping the vaccine immune response through different modes of action. Here early biomarkers of adjuvanticity after primary immunization were investigated using four different adjuvants combined with the chimeric tuberculosis vaccine antigen H56. C57BL/6 mice were immunized by the subcutaneous route with different vaccine formulations, and the modulation of primary CD4+ T cell and B cell responses was assessed within draining lymph nodes, blood, and spleen, 7 and 12 days after priming. Vaccine formulations containing the liposome system CAF01 or a squalene-based oil-in-water emulsion (o/w squalene), but not aluminum hydroxide (alum) or CpG ODN 1826, elicited a significant primary antigen-specific CD4+ T cell response compared to antigen alone, 7 days after immunization. The effector function of activated CD4+ T cells was skewed toward a Th1/Th17 response by CAF01, while a Th1/Th2 response was elicited by o/w squalene. Differentiation of B cells in short-lived plasma cells, and subsequent early H56-specific IgG secretion, was observed in mice immunized with o/w squalene or CpG adjuvants. Tested adjuvants promoted the germinal center reaction with different magnitude. These results show that the immunological activity of different adjuvants can be characterized by profiling early immunization biomarkers after primary immunization. These data and this approach could give an important contribution to the rational development of heterologous prime–boost vaccine immunization protocols.
Collapse
Affiliation(s)
- Annalisa Ciabattini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| | - Elena Pettini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| | - Fabio Fiorino
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| | - Gabiria Pastore
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institut , Copenhagen , Denmark
| | - Gianni Pozzi
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| | - Donata Medaglini
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena , Siena , Italy
| |
Collapse
|
47
|
Abstract
With an emphasis on systems analyses, the VSV-EBOVAC project harnesses state-of-the-art technologies that illuminate mechanisms behind the observed immunogenicity and reactogenicity of the rVSV-ZEBOV vaccine and ensures that such information is shared among stakeholders.
Collapse
Affiliation(s)
- Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy. Sclavo Vaccines Association, 53100 Siena, Italy.
| | - Ali M Harandi
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 7A, Gothenburg, Sweden
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Claire-Anne Siegrist
- Center for Vaccinology, Geneva University Hospitals and University of Geneva, 1211 Geneva, Switzerland
| | | |
Collapse
|
48
|
Olivieri R, Scarnera S, Ciabattini A, De Vuono G, Manzi P, Pozzi G, Battista G, Medaglini D. Using IFN-gamma release assay to confirm tuberculin skin test improves the screening of latent tuberculosis infection in Italian healthcare workers. J Occup Med Toxicol 2016; 11:29. [PMID: 27279894 PMCID: PMC4897955 DOI: 10.1186/s12995-016-0117-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 12/21/2015] [Accepted: 05/24/2016] [Indexed: 12/01/2022] Open
Abstract
Background Healthcare workers (HCWs) represent a tuberculosis (TB) risk group for a wide range of tasks in healthcare, even in countries with low TB incidence, like Italy. Latent Tuberculosis Infection (LTBI) screening programs are an important tool for TB prevention in these setting. Methods A retrospective study under a LTBI screening program among HCWs at the Siena University Hospital (Italy), was conducted between September 2011 and July 2015. Tuberculin Skin Test (TST) was used as a first level examination; all TST-positive cases were tested with QuantiFERON-TB Gold In-Tube (QFT-GIT) test, together with a group of TST-negative subjects. Results Among the 2136 HCWs screened, 144 (6.7 %) were TST-positive and therefore tested with QFT-GIT, confirming a positive result in 36 cases (25 %). Agreement between two tests was poor (k = 0.092; 95 %, Confidence Interval [CI]- 0.048–0.136, p = 0.002). Among TST-positive cases, discordant results occurred more frequently in BCG vaccinated than unvaccinated HCWs (86.3 %, p < 0.001). The probability of a QFT-GIT-positive result increased according to the TST diameter (p = 0.001). No putative risk factor was associated with LTBI occurrence. Conclusions The use of QFT-GIT test as a second step in TST-positive cases offers an appropriate tool for LTBI detection, especially among BCG-vaccinated HCWs.
Collapse
Affiliation(s)
- Raffaela Olivieri
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Siena, Italy
| | - Sara Scarnera
- Medicina Preventiva e Sorveglianza Sanitaria, Dipartimento di Biotecnologie Mediche, Universita' degli Studi di Siena, Siena, Italy
| | - Annalisa Ciabattini
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Siena, Italy
| | - Giulia De Vuono
- Medicina Preventiva e Sorveglianza Sanitaria, Dipartimento di Biotecnologie Mediche, Universita' degli Studi di Siena, Siena, Italy
| | - Pietro Manzi
- Direzione Medica di Presidio, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Gianni Pozzi
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Siena, Italy
| | - Giuseppe Battista
- Medicina Preventiva e Sorveglianza Sanitaria, Dipartimento di Biotecnologie Mediche, Universita' degli Studi di Siena, Siena, Italy
| | - Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Siena, Italy
| |
Collapse
|
49
|
Pettini E, Fiorino F, Cuppone AM, Iannelli F, Medaglini D, Pozzi G. Interferon-γ from Brain Leukocytes Enhances Meningitis by Type 4 Streptococcus pneumoniae. Front Microbiol 2015; 6:1340. [PMID: 26648922 PMCID: PMC4664635 DOI: 10.3389/fmicb.2015.01340] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 09/01/2015] [Accepted: 11/16/2015] [Indexed: 11/29/2022] Open
Abstract
Streptococcus pneumoniae is the leading cause of bacterial meningitis. Pneumococcal meningitis is a life-threatening disease with high rates of mortality and neurological sequelae. Immune targeting of S. pneumoniae is essential for clearance of infection; however, within the brain, the induced inflammatory response contributes to pathogenesis. In this study we investigate the local inflammatory response and the role of IFN-γ in a murine model of pneumococcal meningitis induced by intracranial injection of type 4 S. pneumoniae. Lymphoid and myeloid cell populations involved in meningitis, as well as cytokine gene expression, were investigated after infection. Animals were treated with a monoclonal antibody specific for murine IFN-γ to evaluate its role in animal survival. Intracranial inoculation of 3 × 104 colony-forming units of type 4 strain TIGR4 caused 75% of mice to develop meningitis within 4 days. The amount of lymphocytes, NK cells, neutrophils, monocytes and macrophages in the brain increased 48 h post infection. IFN-γ mRNA levels were about 240-fold higher in brains of infected mice compared to controls. Pro-inflammatory cytokines such as IL-1β and TNF-α, and TLR2 were also upregulated. In vivo treatment with anti-IFN-γ antibody increased survival of infected mice. This study shows that IFN-γ produced during meningitis by type 4 S. pneumoniae enhances bacterial pathogenesis exerting a negative effect on the disease outcome.
Collapse
Affiliation(s)
- Elena Pettini
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| | - Fabio Fiorino
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| | - Anna Maria Cuppone
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| | - Francesco Iannelli
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| | - Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| | - Gianni Pozzi
- Laboratorio di Microbiologia Molecolare e Biotecnologia, Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena Siena, Italy
| |
Collapse
|
50
|
Prota G, Christensen D, Andersen P, Medaglini D, Ciabattini A. Peptide-specific T helper cells identified by MHC class II tetramers differentiate into several subtypes upon immunization with CAF01 adjuvanted H56 tuberculosis vaccine formulation. Vaccine 2015; 33:6823-30. [PMID: 26494626 DOI: 10.1016/j.vaccine.2015.09.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 07/17/2015] [Accepted: 09/09/2015] [Indexed: 12/21/2022]
Abstract
CD4(+) T-cell priming is an essential step in vaccination due to the key role of T helper cells in driving both effector and memory immune responses. Here we have characterized in C57BL/6 mice the T helper subtype differentiation among tetramer-specific CD4(+) T cells primed by subcutaneous immunization with the tuberculosis vaccine antigen H56 plus the adjuvant CAF01. Peptide-specific population identified by the MHC class II tetramers differentiated into several T helper subtypes upon antigen encounter, and the frequency of subpopulations differed according to their localization. Th1 (CXCR3(+)T-bet(+)), Tfh (CXCR5(+)PD-1(+)Bcl-6(+)) and RORγt(+) cells were induced in the lymph nodes draining the immunization site (dLN), while Th1 cells were the predominant subtype in the spleen. In addition, CD4(+) T cells co-expressing multiple T-cell lineage-specifying transcription factors were also detected. In the lungs, most of the tetramer-binding T cells were RORγt(+), while Tfh and Th1 cells were absent. After boosting, a higher frequency of tetramer-binding cells co-expressing the markers CD44 and CD127 was detected compared to primed cells, and cells showed a prevalent Th1 phenotype in both dLN and spleens, while Tfh cells were significantly reduced. In conclusion, these data demonstrate that parenteral immunization with H56 and CAF01 elicits a distribution of antigen-specific CD4(+) T cells in both lymphoid tissues and lungs, and gives rise to multiple T helper subtypes, that differ depending on localization and following reactivation.
Collapse
Affiliation(s)
- Gennaro Prota
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Dennis Christensen
- Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark
| | - Donata Medaglini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy
| | - Annalisa Ciabattini
- Laboratorio di Microbiologia Molecolare e Biotecnologia (LA.M.M.B.), Dipartimento di Biotecnologie Mediche, Università di Siena, Siena, Italy.
| |
Collapse
|