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High-throughput Flow Cytometry Cell-based Assay to Detect Antibodies to N-Methyl-D-aspartate Receptor or Dopamine-2 Receptor in Human Serum
Published on: November 23, 2013
Onconeural antibodies: improved detection and clinical correlations
Anette Storstein1, Sissel Evy Monstad, Mette Haugen
1Department of Neurology, Haukeland University Hospital, Bergen, Norway. anette.storstein@helse-bergen.no
Journal of Neuroimmunology
|November 25, 2010
Summary
This study found immunoprecipitation to be the most accurate method for detecting onconeural antibodies in cancer patients with neurological symptoms, aiding in the diagnosis of paraneoplastic neurological syndromes (PNS).
Area of Science:
- Neurology
- Oncology
- Immunology
Background:
- Onconeural antibodies are key biomarkers for paraneoplastic neurological syndromes (PNS).
- Accurate detection of these antibodies is crucial for diagnosing paraneoplastic conditions in cancer patients.
Purpose of the Study:
- To evaluate the diagnostic accuracy of different onconeural antibody detection assays.
- To compare immunoprecipitation, immunofluorescence, and immunoblot methods in patients with neurological symptoms and cancer.
Main Methods:
- Analysis of 555 patients with neurological symptoms and confirmed cancer.
- Comparison of antibody detection rates using immunoprecipitation, immunofluorescence, and immunoblot.
- Correlation of antibody seropositivity with the presence of PNS.
Main Results:
- Onconeural antibodies were detected in 11.9% of patients by immunoprecipitation, 7.0% by immunofluorescence, and 6.3% by immunoblot.
- 81.8% of seropositive cancer patients exhibited PNS when detected by immunoprecipitation.
- Immunofluorescence and immunoblot missed nearly one-third of PNS cases identified by immunoprecipitation.
Conclusions:
- Immunoprecipitation demonstrates superior sensitivity for detecting onconeural antibodies compared to immunofluorescence and immunoblot.
- Accurate onconeural antibody detection is vital for diagnosing PNS in cancer patients.
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