Optimization of the THP-1 activation assay to detect pharmaceuticals with potential to cause immune mediated drug reactions
Copyright © 2015 Elsevier Ltd. All rights reserved..
Despite important impacts of systemic hypersensitivity induced by pharmaceuticals, for such endpoint no reliable preclinical approaches are available. We previously established an in vitro test to identify contact and respiratory allergens based on interleukin-8 (IL-8) production in THP-1 cells. Here, we challenged it for identification of pharmaceuticals associated with systemic hypersensitivity reactions, with the idea that drug sensitizers share common mechanisms of cell activation. Cells were exposed to drugs associated with systemic hypersensitivity reactions (streptozotocin, sulfamethoxazole, neomycin, probenecid, clonidine, procainamide, ofloxacin, methyl salicylate), while metformin was used as negative drug. Differently to chemicals, drugs tested were well tolerated, except clonidine and probenecid, with no signs of cytotoxicity up to 1-2mg/ml. THP-1 activation assay was adjusted, and conditions, that allow identification of all sensitizing drugs tested, were established. Next, using streptozotocin and selective inhibitors of PKC-β and p38 MAPK, two pathways involved in chemical allergen-induced cell activation, we tested the hypothesis that similar pathways were also involved in drug-induced IL-8 production and CD86 upregulation. Results indicated that drugs and chemical allergens share similar activation pathways. Finally, we made a structure-activity hypothesis related to hypersensitivity reactions, trying to individuate structural requisite that can be involved in immune mediated adverse reactions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
Toxicology in vitro : an international journal published in association with BIBRA - 29(2015), 7 vom: 06. Okt., Seite 1339-49 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Corti, Daniele [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 07.06.2016 Date Revised 16.11.2017 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.tiv.2015.04.012 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM249509598 |
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| 520 | |a Despite important impacts of systemic hypersensitivity induced by pharmaceuticals, for such endpoint no reliable preclinical approaches are available. We previously established an in vitro test to identify contact and respiratory allergens based on interleukin-8 (IL-8) production in THP-1 cells. Here, we challenged it for identification of pharmaceuticals associated with systemic hypersensitivity reactions, with the idea that drug sensitizers share common mechanisms of cell activation. Cells were exposed to drugs associated with systemic hypersensitivity reactions (streptozotocin, sulfamethoxazole, neomycin, probenecid, clonidine, procainamide, ofloxacin, methyl salicylate), while metformin was used as negative drug. Differently to chemicals, drugs tested were well tolerated, except clonidine and probenecid, with no signs of cytotoxicity up to 1-2mg/ml. THP-1 activation assay was adjusted, and conditions, that allow identification of all sensitizing drugs tested, were established. Next, using streptozotocin and selective inhibitors of PKC-β and p38 MAPK, two pathways involved in chemical allergen-induced cell activation, we tested the hypothesis that similar pathways were also involved in drug-induced IL-8 production and CD86 upregulation. Results indicated that drugs and chemical allergens share similar activation pathways. Finally, we made a structure-activity hypothesis related to hypersensitivity reactions, trying to individuate structural requisite that can be involved in immune mediated adverse reactions | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Galbiati, Valentina |e verfasserin |4 aut | |
| 700 | 1 | |a Gatti, Nicolò |e verfasserin |4 aut | |
| 700 | 1 | |a Marinovich, Marina |e verfasserin |4 aut | |
| 700 | 1 | |a Galli, Corrado L |e verfasserin |4 aut | |
| 700 | 1 | |a Corsini, Emanuela |e verfasserin |4 aut | |
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