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Ogese MO, Lister A, Farrell L, Gardner J, Kafu L, Ali SE, Gibson A, Hillegas A, Meng X, Pirmohamed M, Williams GS, Sakatis MZ, Naisbitt DJ. A blinded in vitro analysis of the intrinsic immunogenicity of hepatotoxic drugs: implications for preclinical risk assessment. Toxicol Sci 2023; 197:38-52. [PMID: 37788119 PMCID: PMC10734620 DOI: 10.1093/toxsci/kfad101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
In vitro preclinical drug-induced liver injury (DILI) risk assessment relies largely on the use of hepatocytes to measure drug-specific changes in cell function or viability. Unfortunately, this does not provide indications toward the immunogenicity of drugs and/or the likelihood of idiosyncratic reactions in the clinic. This is because the molecular initiating event in immune DILI is an interaction of the drug-derived antigen with MHC proteins and the T-cell receptor. This study utilized immune cells from drug-naïve donors, recently established immune cell coculture systems and blinded compounds with and without DILI liabilities to determine whether these new methods offer an improvement over established assessment methods for the prediction of immune-mediated DILI. Ten blinded test compounds (6 with known DILI liabilities; 4 with lower DILI liabilities) and 5 training compounds, with known T-cell-mediated immune reactions in patients, were investigated. Naïve T-cells were activated with 4/5 of the training compounds (nitroso sulfamethoxazole, vancomycin, Bandrowski's base, and carbamazepine) and clones derived from the priming assays were activated with drug in a dose-dependent manner. The test compounds with DILI liabilities did not stimulate T-cell proliferative responses during dendritic cell-T-cell coculture; however, CD4+ clones displaying reactivity were detected toward 2 compounds (ciprofloxacin and erythromycin) with known liabilities. Drug-responsive T-cells were not detected with the compounds with lower DILI liabilities. This study provides compelling evidence that assessment of intrinsic drug immunogenicity, although complex, can provide valuable information regarding immune liabilities of some compounds prior to clinical studies or when immune reactions are observed in patients.
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Affiliation(s)
- Monday O Ogese
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
- Development Science, UCB Biopharma, Slough, Berkshire SL1 3WE, UK
| | - Adam Lister
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Liam Farrell
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Joshua Gardner
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Laila Kafu
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Serat-E Ali
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Andrew Gibson
- Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia
| | - Aimee Hillegas
- Immunological Toxicology, In Vitro/In Vivo Translation, GSK, Collegeville, Pennsylvania, USA
| | - Xiaoli Meng
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Munir Pirmohamed
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
| | - Geoffrey S Williams
- Immunological Toxicology, In Vitro/In Vivo Translation, GSK, David Jack Centre for R&D, Ware, Hertfordshire SG12 0DP, UK
| | - Melanie Z Sakatis
- Global Investigative Safety, In Vitro/In Vivo Translation, GSK, David Jack Centre for R&D, Ware, Hertfordshire SG12 0DP, UK
| | - Dean J Naisbitt
- Department of Pharmacology and Therapeutic, MRC Centre for Drug Safety Science, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L693GE, UK
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Deshpande P, Li Y, Thorne M, Palubinsky AM, Phillips EJ, Gibson A. Practical Implementation of Genetics: New Concepts in Immunogenomics to Predict, Prevent, and Diagnose Drug Hypersensitivity. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 10:1689-1700. [PMID: 35526777 PMCID: PMC9948495 DOI: 10.1016/j.jaip.2022.04.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 02/05/2023]
Abstract
Delayed drug hypersensitivities are CD8+ T cell-mediated reactions associated with up to 50% mortality. Human leukocyte antigen (HLA) alleles are known to predispose disease and are specific to drug, reaction, and patient ethnicity. Pretreatment screening is recommended for a handful of the strongest associations to identify and prevent drug use in high-risk patients. However, an incomplete predictive value implicates other HLA-imposed risk factors, and low carriage of many identified HLA-risk alleles combined with the high cost of sequence-based typing has limited economic viability for similar recommendation of screening across drugs and health care systems. For mitigation, an expanding armory of low-cost polymerase chain reaction-based screens is being developed, and HLA-imposed risk factors are being discovered. These include (1) polymorphic variants of metabolic and endoplasmic reticulum aminopeptidase enzymes toward multiallelic screening with increased predictivity; (2) regulation by immune checkpoint inhibitors, enabling detolerized animal models of human disease; and (3) immunodominant T cell receptors (TCR) on clonally expanded CD8+ T cells. For the latter, HLA risk-restricted TCR provides immunogenomic strategies and samples from a single patient to identify novel HLA-risk associations in underserved minority populations, tissue-relevant effector biomarkers toward earlier diagnosis and treatment, and HLA-TCR-presented immunogenic structures to aid future drug development.
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Affiliation(s)
- Pooja Deshpande
- Institute for Immunology and Infectious Disease (IIID), Murdoch University, Perth, WA, Australia
| | - Yueran Li
- Institute for Immunology and Infectious Disease (IIID), Murdoch University, Perth, WA, Australia
| | - Michael Thorne
- Institute for Immunology and Infectious Disease (IIID), Murdoch University, Perth, WA, Australia
| | | | - Elizabeth J Phillips
- Institute for Immunology and Infectious Disease (IIID), Murdoch University, Perth, WA, Australia,Vanderbilt University Medical Centre (VUMC), Nashville, TN, USA
| | - Andrew Gibson
- Institute for Immunology and Infectious Disease, Murdoch University, Perth, Western Australia, Australia.
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Bechara R, Feray A, Pallardy M. Drug and Chemical Allergy: A Role for a Specific Naive T-Cell Repertoire? Front Immunol 2021; 12:653102. [PMID: 34267746 PMCID: PMC8276071 DOI: 10.3389/fimmu.2021.653102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 06/15/2021] [Indexed: 01/11/2023] Open
Abstract
Allergic reactions to drugs and chemicals are mediated by an adaptive immune response involving specific T cells. During thymic selection, T cells that have not yet encountered their cognate antigen are considered naive T cells. Due to the artificial nature of drug/chemical-T-cell epitopes, it is not clear whether thymic selection of drug/chemical-specific T cells is a common phenomenon or remains limited to few donors or simply does not exist, suggesting T-cell receptor (TCR) cross-reactivity with other antigens. Selection of drug/chemical-specific T cells could be a relatively rare event accounting for the low occurrence of drug allergy. On the other hand, a large T-cell repertoire found in multiple donors would underline the potential of a drug/chemical to be recognized by many donors. Recent observations raise the hypothesis that not only the drug/chemical, but also parts of the haptenated protein or peptides may constitute the important structural determinants for antigen recognition by the TCR. These observations may also suggest that in the case of drug/chemical allergy, the T-cell repertoire results from particular properties of certain TCR to recognize hapten-modified peptides without need for previous thymic selection. The aim of this review is to address the existence and the role of a naive T-cell repertoire in drug and chemical allergy. Understanding this role has the potential to reveal efficient strategies not only for allergy diagnosis but also for prediction of the immunogenic potential of new chemicals.
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Affiliation(s)
- Rami Bechara
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Alexia Feray
- Inflammation, Microbiome and Immunosurveillance, Université Paris-Saclay, INSERM, Châtenay-Malabry, France
| | - Marc Pallardy
- Inflammation, Microbiome and Immunosurveillance, Université Paris-Saclay, INSERM, Châtenay-Malabry, France
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