Related Experiment Video
Updated: Jul 7, 2026

10:22
Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity
Published on: September 16, 2011
Summary
Penicillin allergy is a significant concern, but understanding risk factors like exposure history and skin test results can help prevent severe allergic reactions. Research focuses on identifying and mitigating these risks for safer penicillin use.
Area of Science:
- Immunology
- Pharmacology
- Infectious Diseases
Background:
- Penicillin remains a primary antibiotic despite potential allergic reactions.
- Immunoglobulin E-mediated reactions to penicillin cause significant morbidity and mortality.
- Preventing these reactions is crucial for patient safety.
Purpose of the Study:
- To review risk factors for immunoglobulin E-mediated penicillin allergy.
- To discuss the predictive value of various risk factors.
- To offer an approach for managing patients with a history of penicillin allergy who require treatment.
Main Methods:
- Review of existing literature on penicillin allergy.
- Analysis of risk factors including patient history, exposure details, and skin test results.
- Discussion of cross-reactivity between penicillin and its analogs.
Main Results:
- Identified key risk factors for penicillin allergy: history, timing and nature of exposure, age, route of administration, and skin test response.
- Evaluated the relative predictive values of these risk factors.
- Reviewed cross-reactivity patterns among penicillin analogs.
Conclusions:
- Understanding and assessing risk factors are essential for preventing penicillin allergy.
- Skin testing with penicillin determinants can aid in risk stratification.
- A structured approach is needed for patients with a penicillin allergy history requiring treatment.
Related Concept Videos
Allergic Reactions
Overview
Allergic Drug Reactions
Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing numerous...
Drug Toxicity: Allergic Reactions
Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...
Allergic Reactions: Anaphylaxis
Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin, heparin),...
Production of Antibiotics
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
Inhibitors of Gram-positive Cell Wall Synthesis
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...

