T cell-mediated hypersensitivity reactions to drugs.

Pavlos R, Mallal S, Ostrov D, Buus S, Metushi I, Peters B, Phillips E
Annu Rev Med. 2015 66: 439-54

PMID: 25386935 · PMCID: PMC4295772 · DOI:10.1146/annurev-med-050913-022745

The immunological mechanisms driving delayed hypersensitivity reactions (HSRs) to drugs mediated by drug-reactive T lymphocytes are exemplified by several key examples and their human leukocyte antigen (HLA) associations: abacavir and HLA-B*57:01, carbamazepine and HLA-B*15:02, allo-purinol and HLA-B*58:01, and both amoxicillin-clavulanate and nevirapine with multiple class I and II alleles. For HLA-restricted drug HSRs, specific class I and/or II HLA alleles are necessary but not sufficient for tissue specificity and the clinical syndrome. Several models have been proposed to explain the immunopathogenesis of severe T cell-mediated drug HSRs, and our increased understanding of the risk factors and mechanisms involved in the development of these reactions will further the development of sensitive and specific strategies for preclinical screening that will lead to safer and more cost-effective drug design.

MeSH Terms (7)

Drug Hypersensitivity Drug Hypersensitivity Syndrome HLA Antigens Humans Hypersensitivity, Delayed Stevens-Johnson Syndrome T-Lymphocytes

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