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Antibody testing in aspergillosis--quo vadis?
Iain D Page1, Malcolm Richardson2, David W Denning2
1Institute of Inflammation and Repair, The University of Manchester, UK Manchester Academic Health Science Centre, UK National Aspergillosis Center and Mycology Reference Centre, University Hospital South Manchester, UK iain.page@manchester.ac.uk.
Medical Mycology
|May 17, 2015
Summary
Antibody testing aids in diagnosing aspergillosis, a fungal lung infection affecting millions. Further research is needed to optimize antibody test use, especially in resource-limited settings.
Area of Science:
- Medical Mycology
- Immunology
- Clinical Diagnostics
Background:
- Humans are exposed to Aspergillus spores, often developing specific antibodies.
- Elevated Aspergillus-specific immunoglobulin G (IgG) is common in chronic lung disease and airway colonization, but its predictive value for aspergillosis risk is unclear.
- Pulmonary aspergillosis affects over 3 million globally, with antibody testing crucial for diagnosing chronic and allergic forms.
Purpose of the Study:
- To review and compare the efficacy and reproducibility of available Aspergillus-specific antibody detection methods.
- To discuss the suitability of these tests for various clinical settings, including resource-poor areas.
- To identify knowledge gaps and future research directions for optimizing antibody testing in aspergillosis management.
Main Methods:
- Review of existing literature on Aspergillus-specific antibody detection methods.
- Comparative analysis of diagnostic performance and reproducibility data.
- Discussion of clinical utility across different aspergillosis presentations and healthcare settings.
Main Results:
- Antibody testing, particularly IgG and IgE, is central to diagnosing chronic and allergic pulmonary aspergillosis and monitoring treatment.
- The role of antibody testing in acute invasive aspergillosis is limited due to potential immunosuppression-induced blunted responses.
- Limited comparative data exist on the efficacy and reproducibility of various Aspergillus antibody detection methods.
Conclusions:
- Optimizing the use of antibody testing requires addressing the limited comparative data on test performance.
- Further studies are needed to guide the appropriate application of antibody tests in diverse clinical and resource settings.
- Standardization and validation of antibody assays are essential for reliable aspergillosis diagnosis and management.
