Abstract
Drug hypersensitivity reactions (DHRs) are adverse drug reactions that may be divided into several categories; namely pharmacologic intolerance, idiosyncratic reactions, pseudo-allergic reactions and allergic reactions. Drug allergic reactions are those DHRs that are mediated by either antibodies or drug-specific T cells. They vary in terms of severity, time-to-onset of clinical manifestations and target organ. Skin is most commonly implicated in drug hypersensitivity reactions; however, it is now apparent that reactions targeting internal organs fall under the definition of drug hypersensitivity. Multiple hypotheses have been proposed to explain the diverse immune mechanisms involved and the heterogeneous clinical presentation. The discovery of human leukocyte antigen (HLA) risk alleles for some DHRs has provided insights in the pathogenesis of these reactions. In this review we summarize immune cells involved in DHRs, discuss the possible immunological mechanisms of DHRs, with an emphasis on the IgE-mediated immediate reactions and T cell-dependent delayed type reactions.
Keywords: Drug hypersensitivity, T-cells, IgE.
Current Pharmaceutical Design
Title:Immunological Mechanisms of Drug Hypersensitivity
Volume: 22 Issue: 45
Author(s): Xiaoli Meng, Adriana Ariza, James Waddington, Kevin Park and Dean Naisbitt
Affiliation:
Keywords: Drug hypersensitivity, T-cells, IgE.
Abstract: Drug hypersensitivity reactions (DHRs) are adverse drug reactions that may be divided into several categories; namely pharmacologic intolerance, idiosyncratic reactions, pseudo-allergic reactions and allergic reactions. Drug allergic reactions are those DHRs that are mediated by either antibodies or drug-specific T cells. They vary in terms of severity, time-to-onset of clinical manifestations and target organ. Skin is most commonly implicated in drug hypersensitivity reactions; however, it is now apparent that reactions targeting internal organs fall under the definition of drug hypersensitivity. Multiple hypotheses have been proposed to explain the diverse immune mechanisms involved and the heterogeneous clinical presentation. The discovery of human leukocyte antigen (HLA) risk alleles for some DHRs has provided insights in the pathogenesis of these reactions. In this review we summarize immune cells involved in DHRs, discuss the possible immunological mechanisms of DHRs, with an emphasis on the IgE-mediated immediate reactions and T cell-dependent delayed type reactions.
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Cite this article as:
Meng Xiaoli, Ariza Adriana, Waddington James, Park Kevin and Naisbitt Dean, Immunological Mechanisms of Drug Hypersensitivity, Current Pharmaceutical Design 2016; 22 (45) . https://dx.doi.org/10.2174/1381612822666161003115103
DOI https://dx.doi.org/10.2174/1381612822666161003115103 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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