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Generation of Human Alloantigen-specific T Cells from Peripheral Blood
Published on: November 21, 2014
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T cell-mediated hypersensitivity reactions to drugs
Rebecca Pavlos1, Simon Mallal, David Ostrov
1Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, 6150;
Annual Review of Medicine
|November 12, 2014
Summary
Drug hypersensitivity reactions (HSRs) are driven by T lymphocytes and linked to specific human leukocyte antigen (HLA) alleles. Understanding these mechanisms aids in developing safer drug screening strategies.
Area of Science:
- Immunology
- Pharmacogenomics
- Clinical Medicine
Background:
- Delayed hypersensitivity reactions (HSRs) to drugs are T-cell mediated immune responses.
- Specific human leukocyte antigen (HLA) alleles are strongly associated with certain drug-induced HSRs.
Purpose of the Study:
- To elucidate the immunological mechanisms underlying drug-induced HSRs.
- To highlight the role of HLA associations in predicting and understanding these reactions.
- To inform the development of preclinical screening strategies for safer drug design.
Main Methods:
- Review and synthesis of existing literature on drug HSRs and HLA associations.
- Analysis of key examples including abacavir, carbamazepine, allopurinol, amoxicillin-clavulanate, and nevirapine.
- Examination of proposed immunopathogenesis models for severe T-cell mediated HSRs.
Main Results:
- Specific HLA class I and/or II alleles are necessary, though not sufficient, for the development of HLA-restricted drug HSRs.
- Examples provided demonstrate varied HLA associations across different drugs.
- Tissue specificity and clinical presentation depend on HLA alleles and other factors.
Conclusions:
- Increased understanding of risk factors and mechanisms in drug HSRs is crucial.
- This knowledge will advance the development of sensitive and specific preclinical screening tools.
- The ultimate goal is to enable safer and more cost-effective drug design and development.
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