A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells

BackgroundThere is a growing need for immunological assays to test toxic and modulatory effects of chemicals. The assays should be easy to use, reproducible and superior to cell line-based assays. We have therefore developed a comprehensive portfolio of assays based on primary human blood cells that...

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Main Authors: Arkadiusz Pierzchalski, Ana C. Zenclussen, Gunda Herberth
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-01-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2023.1327960/full
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author Arkadiusz Pierzchalski
Ana C. Zenclussen
Ana C. Zenclussen
Gunda Herberth
author_facet Arkadiusz Pierzchalski
Ana C. Zenclussen
Ana C. Zenclussen
Gunda Herberth
author_sort Arkadiusz Pierzchalski
collection DOAJ
description BackgroundThere is a growing need for immunological assays to test toxic and modulatory effects of chemicals. The assays should be easy to use, reproducible and superior to cell line-based assays. We have therefore developed a comprehensive portfolio of assays based on primary human blood cells that are suitable for testing chemical effects.MethodsThe flow cytometry-based assays were designed to target a wide range of human peripheral blood mononuclear cells and whole blood, including T cells, NK cells, B cells, basophils and innate-like T cells such as γδT, MAIT and NKT cells. We have selected a set of activation markers for each immune cell, e.g: CD154 (T cells), CD137, CD107a (NK cells), CD63 (basophils), CD69, CD83 (B cells), CD69, IFN-γ (MAIT cells) and we selected cell specific stimuli: aCD3 antibodies (T cells); E. coli and cytokines IL-12/15/18 (MAIT cells); CpG ODN2006, R848 or aCD40 antibodies (B cells), fMLP or aFcϵR1 (basophils) or K562 cells (NK cells).ResultsBy selecting immune cell-specific markers and cell-specific stimuli, we were able to induce particular immune responses from the targeted immune cells. For example, the response to stimulation with anti-CD3 antibodies was in 36.8% of CD107a+CD8+ cells. Cytokine stimulation induced the production of IFN-γ in 30% of MAIT cells. After stimulation with E. coli, around 50% of MAIT cells produced TNF. About 40% of basophils responded to aFcƐR1 stimulation. Similar activation ranges were achieved in K562-stimulated NK cells.ConclusionOur test portfolio covers the most relevant immune cells present in human blood, providing a solid basis for in vitro toxicity and immunomodulatory testing of chemicals. By using human blood, the natural composition of cells found in the blood can be determined and the effects of chemicals can be detected at the cellular level.
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spelling doaj.art-2dcbf435b6aa4f3a87207f27b24443672024-01-02T11:18:43ZengFrontiers Media S.A.Frontiers in Immunology1664-32242024-01-011410.3389/fimmu.2023.13279601327960A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cellsArkadiusz Pierzchalski0Ana C. Zenclussen1Ana C. Zenclussen2Gunda Herberth3Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, GermanyHelmholtz Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, GermanyPerinatal Immunology Research Group, Medical Faculty, Saxonian Incubator for Clinical Translation (SIKT), University of Leipzig, Leipzig, GermanyHelmholtz Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, GermanyBackgroundThere is a growing need for immunological assays to test toxic and modulatory effects of chemicals. The assays should be easy to use, reproducible and superior to cell line-based assays. We have therefore developed a comprehensive portfolio of assays based on primary human blood cells that are suitable for testing chemical effects.MethodsThe flow cytometry-based assays were designed to target a wide range of human peripheral blood mononuclear cells and whole blood, including T cells, NK cells, B cells, basophils and innate-like T cells such as γδT, MAIT and NKT cells. We have selected a set of activation markers for each immune cell, e.g: CD154 (T cells), CD137, CD107a (NK cells), CD63 (basophils), CD69, CD83 (B cells), CD69, IFN-γ (MAIT cells) and we selected cell specific stimuli: aCD3 antibodies (T cells); E. coli and cytokines IL-12/15/18 (MAIT cells); CpG ODN2006, R848 or aCD40 antibodies (B cells), fMLP or aFcϵR1 (basophils) or K562 cells (NK cells).ResultsBy selecting immune cell-specific markers and cell-specific stimuli, we were able to induce particular immune responses from the targeted immune cells. For example, the response to stimulation with anti-CD3 antibodies was in 36.8% of CD107a+CD8+ cells. Cytokine stimulation induced the production of IFN-γ in 30% of MAIT cells. After stimulation with E. coli, around 50% of MAIT cells produced TNF. About 40% of basophils responded to aFcƐR1 stimulation. Similar activation ranges were achieved in K562-stimulated NK cells.ConclusionOur test portfolio covers the most relevant immune cells present in human blood, providing a solid basis for in vitro toxicity and immunomodulatory testing of chemicals. By using human blood, the natural composition of cells found in the blood can be determined and the effects of chemicals can be detected at the cellular level.https://www.frontiersin.org/articles/10.3389/fimmu.2023.1327960/fullimmune assayshuman bloodflow cytometrychemical testingactivation markerimmune cells
spellingShingle Arkadiusz Pierzchalski
Ana C. Zenclussen
Ana C. Zenclussen
Gunda Herberth
A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
Frontiers in Immunology
immune assays
human blood
flow cytometry
chemical testing
activation marker
immune cells
title A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
title_full A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
title_fullStr A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
title_full_unstemmed A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
title_short A comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
title_sort comprehensive battery of flow cytometric immunoassays for the in vitro testing of chemical effects in human blood cells
topic immune assays
human blood
flow cytometry
chemical testing
activation marker
immune cells
url https://www.frontiersin.org/articles/10.3389/fimmu.2023.1327960/full
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