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Published on: October 14, 2014
Enzymatically active papain preferentially induces an allergic response in mice
L Chambers1, A Brown, D I Pritchard
1Division of Clinical Chemistry, School of Clinical Laboratory Sciences, University Hospital, Nottingham, England.
Biochemical and Biophysical Research Communications
|January 27, 1999
Summary
Enzymatically active papain triggers allergic reactions in mice by inducing IgG1 responses and mast cell degranulation. Inactive papain may offer a desensitization strategy for allergies.
Area of Science:
- Immunology
- Allergology
- Biochemistry
Background:
- Papain, a cysteine proteinase, is known to cause hypersensitivity reactions in humans.
- Understanding the mechanisms of papain-induced allergies is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the role of papain's enzymatic activity in inducing allergic responses.
- To explore the potential of using inactive papain for allergy desensitization.
Main Methods:
- Induction of immune responses in mice using enzymatically active and inactive papain.
- Assessment of IgG1 antibody production and mast cell degranulation.
- Evaluation of desensitization effects using E-64 blocked papain.
Main Results:
- Enzymatically active papain induced a significant IgG1 response and mast cell degranulation in mice.
- Pre-treatment with inactive papain (E-64 blocked) desensitized mice to subsequent challenges with active papain.
Conclusions:
- The enzymatic activity of papain is essential for eliciting allergic reactions.
- Inactive papain holds promise as a potential therapeutic strategy for desensitizing individuals with papain allergies.
