Austin Health

Title
Tools to improve the diagnosis and management of T-cell mediated adverse drug reactions.
Publication Date
2022-10
Author(s)
Copaescu, Ana Maria
Ben-Shoshan, Moshe
Trubiano, Jason
Subject
Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN)
delayed hypersensitivity reaction
diagnostic tools
drug allergy
drug reaction with eosinophilia and systemic symptoms (DRESS)
ex vivo
in vivo
severe cutaneous adverse reactions (SCARs)
Type of document
Journal Article
OrcId
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DOI
10.3389/fmed.2022.923991
Abstract
Delayed drug T-cell immune-mediated hypersensitivity reactions have a large clinical heterogeneity varying from mild maculopapular exanthema (MPE) to severe cutaneous adverse reactions (SCARs) such as acute generalized exanthematous pustulosis (AGEP), drug reaction with eosinophilia and systemic symptoms (DRESS) and severe skin necrosis and blistering as seen in Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Given the knowledge gaps related to the immunopathogenesis of these conditions, the absence of validated diagnostic tools and the significant associated morbidity and mortality, patients with SCARs often have limited drug choices. We performed a comprehensive review aiming to evaluate in vivo diagnostic tools such as delayed intradermal skin and patch testing and ex vivo/in vitro research assays such as the lymphocyte transformation test (LTT) and the enzyme-linked ImmunoSpot (ELISpot) assay. We searched through PubMed using the terms "drug allergy," "in vivo" and "ex vivo" for original papers in the last 10 years. A detailed meticulous approach adapted to the various clinical phenotypes is recommended for the diagnostic and management of delayed drug hypersensitivity reactions. This review highlights the current diagnostic tools for the delayed drug hypersensitivity phenotypes.
Link
Citation
Frontiers in Medicine 2022; 9:923991
Jornal Title
Frontiers in Medicine

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