Laboratory animal allergy: a new world

Area of Science:

• Occupational Health
• Laboratory Animal Science
• Immunology

Background:

• Genetically modified mice and individually ventilated cages are increasingly used in animal research.
• Laboratory animal allergy remains a significant occupational health concern.

Purpose of the Study:

• To assess the risks of laboratory animal allergy associated with current animal research practices.
• To identify opportunities for allergy prevention in the evolving research environment.

Main Methods:

• Review of evidence on animal experiments using mice and the impact of individually ventilated cages.
• Analysis of immunological techniques for mouse protein sensitization.
• Evaluation of contemporary practices and their association with animal sensitization.

Main Results:

• Mouse experiments have increased, but risk data is limited.
• Individually ventilated cages reduce airborne mouse urinary protein but task-based exposures are unquantified.
• Evidence suggests modern practices generally reduce the incidence of animal sensitization.

Conclusions:

• There is a lack of data for evidence-based practices to control laboratory animal allergy.
• Further understanding of exposure-outcome relationships is crucial.
• Individual susceptibility may become more significant as exposures decrease.