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Related Experiment Video

Updated: Jan 9, 2026

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Array-based diagnostic gene-expression score for atopy and asthma.

Martin H Brutsche1, Ladina Joos, Ingrid E A Carlen Brutsche

  • 1Department of Pneumology, University Hospital, Basel, Switzerland.

The Journal of Allergy and Clinical Immunology
|February 14, 2002
PubMed
Summary
This summary is machine-generated.

A new composite atopy gene expression (CAGE) score effectively diagnoses atopy and asthma. This gene expression tool shows promise for monitoring disease activity and guiding therapy decisions.

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Area of Science:

  • Immunology
  • Genetics
  • Allergy Research

Background:

  • Atopic phenotypes are challenging to distinguish using current methods.
  • Gene expression patterns may offer novel diagnostic insights into atopy and asthma.
  • Understanding disease activity is crucial for effective therapeutic strategies.

Purpose of the Study:

  • To evaluate a composite atopy gene expression (CAGE) score for diagnosing atopy and asthma.
  • To assess the utility of the CAGE score in guiding therapeutic decisions by measuring disease activity.
  • To determine if gene expression can differentiate between atopic and non-atopic individuals.

Main Methods:

  • Purified mRNA was isolated from peripheral blood mononuclear cells (PBMCs) of atopic asthmatic, atopic non-asthmatic, and healthy control subjects.
  • A composite atopy gene expression (CAGE) score was calculated using 10 specific genes identified as dysregulated in atopic individuals.
  • The CAGE score's diagnostic performance was compared against total IgE levels.

Main Results:

  • The CAGE score demonstrated high sensitivity (96%) and specificity (92%) in differentiating atopic from non-atopic individuals, outperforming total IgE.
  • A significant correlation was observed between the CAGE score and total IgE levels (P <.001).
  • A trend towards correlation between the CAGE score and asthma severity was noted (P =.051), indicating its potential for monitoring disease activity.

Conclusions:

  • The CAGE score is a valuable tool for diagnosing atopy and asthma, offering superior discrimination compared to total IgE.
  • The CAGE score can quantify phenotype-specific gene expression alterations in atopic individuals.
  • This gene expression-based score holds potential as a diagnostic aid and for monitoring therapeutic responses and side effects.