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Serum eosinophil cationic protein in patients with atopic dermatitis
R Paganelli1, E Fanales-Belasio, D Carmini
1Department of Allergy and Clinical Immunology, University La Sapienza, Rome, Italy.
International Archives of Allergy and Applied Immunology
|January 1, 1991
Summary
Eosinophil cationic protein (ECP) levels are elevated in children with atopic dermatitis (AD), indicating increased eosinophil activity. Measuring serum ECP may help assess AD severity and eosinophil involvement in skin inflammation.
Area of Science:
- Immunology
- Dermatology
- Allergy
Background:
- Atopic dermatitis (AD) is a chronic inflammatory skin condition.
- AD is linked to atopy, elevated IgE, and immunological issues.
- Eosinophils and their proteins are found in AD skin lesions.
Purpose of the Study:
- To measure serum eosinophil cationic protein (ECP) levels in children with AD.
- To compare ECP levels in AD patients with nonatopic controls.
- To explore the relationship between ECP, IgE, and eosinophil counts in AD.
Main Methods:
- Serum ECP levels were measured in 24 children with AD.
- ECP levels were compared to those of nonatopic children and adults.
- Serum ECP was correlated with IgE levels and circulating eosinophil counts.
Main Results:
- Children with AD showed significantly higher serum ECP levels than controls.
- Elevated ECP was also observed in hyper-IgE syndrome patients.
- No direct correlation was found between serum ECP and IgE or eosinophil counts.
- The findings suggest ECP is produced by tissue-infiltrating cells.
Conclusions:
- Serum ECP is elevated in children with atopic dermatitis.
- ECP measurement may serve as a noninvasive marker for assessing AD activity.
- This marker reflects eosinophil involvement in the disease process.