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Related Experiment Videos

Active cutaneous anaphylaxis (ACA) in the mouse ear.

N Inagaki1, T Miura, H Nagai

  • 1Department of Pharmacology, Gifu Pharmaceutical University, Japan.

Japanese Journal of Pharmacology
|June 1, 1992
PubMed
Summary
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This study shows that active cutaneous anaphylaxis (ACA) in mouse ears is a useful model for allergy drug research. Various antiallergic, antihistamine, and anti-inflammatory drugs effectively inhibited this allergic reaction.

Area of Science:

  • Immunology
  • Pharmacology

Background:

  • Active cutaneous anaphylaxis (ACA) is a model for studying allergic reactions.
  • Understanding ACA mechanisms is crucial for developing effective allergy treatments.

Purpose of the Study:

  • To investigate the utility of ACA in the mouse ear as a model for evaluating antiallergic and anti-inflammatory drugs.
  • To assess the inhibitory effects of various drug classes on ACA.

Main Methods:

  • Female BALB/c mice were immunized with ovalbumin using either aluminum hydroxide gel or complete Freund's adjuvant (CFA).
  • ACA was induced by intradermal injection of ovalbumin into the ear lobe.
  • Extravasated dye was quantified to measure the severity of ACA.
  • The effects of antiallergic drugs, antihistamines, beta-stimulants, theophylline, and glucocorticoids were evaluated.

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Main Results:

  • A wide range of drugs, including antiallergics, antihistamines, beta-stimulants, theophylline, and glucocorticoids, significantly inhibited ACA.
  • The inhibitory effects were consistent regardless of whether the antigen was precipitated with alum or emulsified with CFA.
  • ACA in the mouse ear demonstrated a significant and reproducible allergic response.

Conclusions:

  • The mouse ear model of ACA is a valuable and sensitive tool for screening and evaluating the efficacy of drugs targeting allergic reactions.
  • This model can aid in the discovery and development of novel allergy therapeutics.