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Portilho AI, Gimenes Lima G, De Gaspari E. Enzyme-Linked Immunosorbent Assay: An Adaptable Methodology to Study SARS-CoV-2 Humoral and Cellular Immune Responses. J Clin Med 2022; 11:1503. [PMID: 35329828 PMCID: PMC8948777 DOI: 10.3390/jcm11061503] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 02/07/2023] Open
Abstract
The Enzyme-Linked Immunosorbent Assay is a versatile technique, which can be used for several applications. It has enormously contributed to the study of infectious diseases. This review highlights how this methodology supported the science conducted in COVID-19 pandemics, allowing scientists to better understand the immune response against SARS-CoV-2. ELISA can be modified to assess the functionality of antibodies, as avidity and neutralization, respectively by the standardization of avidity-ELISA and surrogate-neutralization methods. Cellular immunity can also be studied using this assay. Products secreted by cells, like proteins and cytokines, can be studied by ELISA or its derivative Enzyme-linked immunospot (ELISpot) assay. ELISA and ELISA-based methods aided the area of immunology against infectious diseases and is still relevant, for example, as a promising approach to study the differences between natural and vaccine-induced immune responses against SARS-CoV-2.
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Affiliation(s)
- Amanda Izeli Portilho
- Immunology Center, Adolfo Lutz Institute, Sao Paulo 01246-902, SP, Brazil; (A.I.P.); (G.G.L.)
- Graduate Program Interunits in Biotechnology, University of Sao Paulo, Sao Paulo 05508-900, SP, Brazil
| | - Gabrielle Gimenes Lima
- Immunology Center, Adolfo Lutz Institute, Sao Paulo 01246-902, SP, Brazil; (A.I.P.); (G.G.L.)
- Graduate Program Interunits in Biotechnology, University of Sao Paulo, Sao Paulo 05508-900, SP, Brazil
| | - Elizabeth De Gaspari
- Immunology Center, Adolfo Lutz Institute, Sao Paulo 01246-902, SP, Brazil; (A.I.P.); (G.G.L.)
- Graduate Program Interunits in Biotechnology, University of Sao Paulo, Sao Paulo 05508-900, SP, Brazil
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Broketa M, Bruhns P. Single-Cell Technologies for the Study of Antibody-Secreting Cells. Front Immunol 2022; 12:821729. [PMID: 35173713 PMCID: PMC8841722 DOI: 10.3389/fimmu.2021.821729] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/29/2021] [Indexed: 01/05/2023] Open
Abstract
Antibody-secreting cells (ASC), plasmablasts and plasma cells, are terminally differentiated B cells responsible for large-scale production and secretion of antibodies. ASC are derived from activated B cells, which may differentiate extrafollicularly or form germinal center (GC) reactions within secondary lymphoid organs. ASC therefore consist of short-lived, poorly matured plasmablasts that generally secrete lower-affinity antibodies, or long-lived, highly matured plasma cells that generally secrete higher-affinity antibodies. The ASC population is responsible for producing an immediate humoral B cell response, the polyclonal antibody repertoire, as well as in parallel building effective humoral memory and immunity, or potentially driving pathology in the case of autoimmunity. ASC are phenotypically and transcriptionally distinct from other B cells and further distinguishable by morphology, varied lifespans, and anatomical localization. Single cell analyses are required to interrogate the functional and transcriptional diversity of ASC and their secreted antibody repertoire and understand the contribution of individual ASC responses to the polyclonal humoral response. Here we summarize the current and emerging functional and molecular techniques for high-throughput characterization of ASC with single cell resolution, including flow and mass cytometry, spot-based and microfluidic-based assays, focusing on functional approaches of the secreted antibodies: specificity, affinity, and secretion rate.
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Affiliation(s)
- Matteo Broketa
- Institut Pasteur, Université de Paris, INSERM UMR 1222, Unit of Antibodies in Therapy and Pathology, Paris, France
- Sorbonne Université, Collège doctoral, Paris, France
| | - Pierre Bruhns
- Institut Pasteur, Université de Paris, INSERM UMR 1222, Unit of Antibodies in Therapy and Pathology, Paris, France
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Del Valle A, Acosta-Rivero N, Laborde RJ, Cruz-Leal Y, Cabezas S, Luzardo MC, Alvarez C, Labrada M, Rodríguez A, Rodríguez GL, Raymond J, Nogueira CV, Grubaugh D, Fernández LE, Higgins D, Lanio ME. Sticholysin II shows similar immunostimulatory properties to LLO stimulating dendritic cells and MHC-I restricted T cell responses of heterologous antigen. Toxicon 2021; 200:38-47. [PMID: 34237340 DOI: 10.1016/j.toxicon.2021.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 06/22/2021] [Accepted: 06/30/2021] [Indexed: 10/20/2022]
Abstract
Induction of CD8+ T cell responses against tumor cells and intracellular pathogens is an important goal of modern vaccinology. One approach of translational interest is the use of liposomes encapsulating pore-forming proteins (PFPs), such as Listeriolysin O (LLO), which has shown efficacy at priming strong and sustained CD8+ T cell responses. Recently, we have demonstrated that Sticholysin II (StII), a PFP from the sea anemone Stichodactyla helianthus, co-encapsulated into liposomes with ovalbumin (OVA) was able to stimulate, antigen presenting cells, antigen-specific CD8+ T cells and anti-tumor activity in mice. In the present study, we aimed to compare StII and LLO in terms of their abilities to stimulate dendritic cells and to induce major histocompatibility complex (MHC) class I restricted T cell responses against OVA. Interestingly, StII exhibited similar abilities to LLO in vitro of inducing dendritic cells maturation, as measured by increased expression of CD40, CD80, CD86 and MHC-class II molecules, and of stimulating OVA cross-presentation to a CD8+ T cell line. Remarkably, using an ex vivo Enzyme-Linked ImmunoSpot Assay (ELISPOT) to monitor gamma interferon (INF-γ) producing effector memory CD8+ T cells, liposomal formulations containing either StII or LLO induced comparable frequencies of OVA-specific INF-γ producing CD8+ T cells in mice that were sustained in time. However, StII-containing liposomes stimulated antigen-specific memory CD8+ T cells with a higher potential to secrete IFN-γ than liposomes encapsulating LLO. This StII immunostimulatory property further supports its use for the rational design of T cell vaccines against cancers and intracellular pathogens. In summary, this study indicates that StII has immunostimulatory properties similar to LLO, despite being evolutionarily distant PFPs.
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Affiliation(s)
- A Del Valle
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - N Acosta-Rivero
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba.
| | - R J Laborde
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - Y Cruz-Leal
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - S Cabezas
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - M C Luzardo
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - C Alvarez
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - M Labrada
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - A Rodríguez
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - G L Rodríguez
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - J Raymond
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | | | - D Grubaugh
- Harvard Medical School, Harvard University, USA
| | - L E Fernández
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - D Higgins
- Harvard Medical School, Harvard University, USA
| | - M E Lanio
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba.
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Early Diagnosis of Pathogen Infection by Cell-Based Activation Immunoassay. Cells 2019; 8:cells8090952. [PMID: 31443439 PMCID: PMC6769711 DOI: 10.3390/cells8090952] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/14/2019] [Accepted: 08/21/2019] [Indexed: 12/12/2022] Open
Abstract
Diagnostic identification of pathogens is usually accomplished by isolation of the pathogen or its substances, and should correlate with the time and site of infection. Alternatively, immunoassays such as enzyme-linked immunosorbent assay (ELISA) tests for quantification of serum antibodies are expedient and are usually employed for retrospective diagnostic of a particular infective agent. Here, the potential of cell-based immunoassays for early pathogen detection was evaluated by quantification of specific, antigen-activated, low-frequency IFNγ-secreting cells in mouse spleens following infection with various pathogens. Using enzyme-linked immunospot (ELISPOT) assays, specific responses were observed within 3–6 days following infection with F. tularensis, B. anthracis, Y. pestis, or Influenza virus. Blood samples collected from F. tularensis-infected mice revealed the presence of IFNγ-producing activated cells within one week post infection. When non-human primates were infected with B. anthracis, cellular response was observed in peripheral blood samples as early as five days post infection, 3–5 days earlier than serum antibodies. Finally, the expression pattern of genes in splenocytes of F. tularensis-infected mice was inspected by a transcriptomic approach, enabling the identification of potential host targets for the future development of genetic-based cellular immunoassays. Altogether, the data demonstrate the potential of cell-based immunoassays for early pathogen detection.
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van Besouw NM, Yan L, de Kuiper R, Klepper M, Reijerkerk D, Dieterich M, Roelen DL, Claas FHJ, Clahsen-van Groningen MC, Hesselink DA, Baan CC. The Number of Donor-Specific IL-21 Producing Cells Before and After Transplantation Predicts Kidney Graft Rejection. Front Immunol 2019; 10:748. [PMID: 31024571 PMCID: PMC6465545 DOI: 10.3389/fimmu.2019.00748] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 03/19/2019] [Indexed: 02/05/2023] Open
Abstract
Interleukin (IL)-21 supports induction and expansion of CD8+ T cells, and can also regulate the differentiation of B cells into antibody-producing plasma cells. We questioned whether the number of circulating donor-specific IL-21 producing cells (pc) can predict kidney transplant rejection, and evaluated this in two different patient cohorts. The first analysis was done on pre-transplantation samples of 35 kidney transplant recipients of whom 15 patients developed an early acute rejection. The second study concerned peripheral blood mononuclear cell (PBMC) samples from 46 patients obtained at 6 months after kidney transplantation of whom 13 developed late rejection. Significantly higher frequencies of donor-specific IL-21 pc were found by Elispot assay in both patients who developed early and late rejection compared to those without rejection. In addition, low frequencies of donor-specific IL-21 pc were associated with higher rejection-free survival. Moreover, low pre-transplant donor-specific IL-21 pc numbers were associated with the absence of anti-HLA antibodies. Donor-reactive IL-21 was mainly produced by CD4+ T cells, including CD4+ follicular T helper cells. In conclusion, the number of donor-specific IL-21 pc is associated with an increased risk of both early and late rejection, giving it the potential to be a new biomarker in kidney transplantation.
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Affiliation(s)
- Nicole M van Besouw
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Lin Yan
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands.,Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ronella de Kuiper
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Mariska Klepper
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Derek Reijerkerk
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Marjolein Dieterich
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Dave L Roelen
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, Netherlands
| | - Frans H J Claas
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, Netherlands
| | - Marian C Clahsen-van Groningen
- The Rotterdam Transplant Group, Department of Pathology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Dennis A Hesselink
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Carla C Baan
- The Rotterdam Transplant Group, Department of Internal Medicine-Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
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