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Updated: Sep 12, 2025

An Ex vivo Mast Cell Degranulation Assay using Crude Peritoneal Exudate Cells and Natural Antigen Stimulation
Published on: April 27, 2021
Mast cell conditions and drug allergy
Bianca Olivieri1, Patrizia Bonadonna2
1Allergy Unit, University Hospital, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy; Department of Medicine, University of Verona, Verona, Italy.
Systemic mastocytosis patients face a higher risk of drug hypersensitivity reactions (DHRs), especially to NSAIDs. However, severe reactions are uncommon, and individualized assessment can prevent unnecessary drug avoidance.
Area of Science:
- Immunology
- Pharmacology
- Hematology
Background:
- Systemic mastocytosis (SM) is linked to an increased risk of drug hypersensitivity reactions (DHRs).
- Nonsteroidal anti-inflammatory drugs (NSAIDs), antibiotics, and perioperative medications are common triggers.
- Despite concerns, severe DHRs, including anaphylaxis, appear to have a low overall prevalence in SM.
Purpose of the Study:
- To review current evidence on DHRs in mastocytosis.
- To identify frequent drug triggers and discuss their management strategies.
- To emphasize individualized assessment for safe medication use in SM patients.
Main Methods:
- Literature review of DHRs in mast cell disorders.
- Analysis of drug triggers, reaction prevalence, and management guidelines.
- Discussion of risk stratification, skin testing, and drug provocation testing (DPT).
Main Results:
- NSAIDs are the most common triggers for DHRs in mastocytosis.
- Severe reactions are relatively infrequent, challenging the need for broad drug avoidance.
- Individualized clinical history is crucial for guiding safe drug introduction.
Conclusions:
- A history-driven, evidence-based approach is essential for managing DHRs in mastocytosis.
- Most patients can be treated effectively without unnecessary therapeutic restrictions.
- Risk stratification and targeted testing can facilitate safe medication use.
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