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Updated: Jul 4, 2026

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
[Ma2 antibody and multiple mononeuropathies]
X Ayrignac1, G Castelnovo, E Landrault
1Service de neurologie, CHU de Nîmes, 30029 Nîmes cedex, France.
Abstract:
Anti-Ma2 antibodies belong to a family of onconeuronal antibodies that target proteins expressed in brain, testis and several tumors. Previously observed in patients presenting with limbic encephalitis, they seem to be associated with several other paraneoplastic syndromes. We report the case of a 73-year-old woman presenting sensory and motor neuropathy associated with non-small-cell lung cancer who had Ma2-antibodies.
Insights
Anti-Ma2 antibodies, linked to brain and tumor proteins, are associated with paraneoplastic syndromes. This case highlights their connection to sensory-motor neuropathy in a patient with non-small-cell lung cancer.
Area of Science:
- Neuroimmunology
- Oncology
Background:
- Onconeuronal antibodies, including Anti-Ma2, target proteins in the nervous system and tumors.
- These antibodies are typically associated with limbic encephalitis and other paraneoplastic neurological syndromes.
Observation:
- A case study of a 73-year-old woman with non-small-cell lung cancer is presented.
- The patient exhibited a sensory and motor neuropathy.
Findings:
- The patient was found to have Anti-Ma2 antibodies.
- This indicates a potential association between Anti-Ma2 antibodies, non-small-cell lung cancer, and peripheral neuropathy.
Implications:
- This case expands the known clinical spectrum associated with Anti-Ma2 antibodies.
- It underscores the importance of considering onconeuronal antibodies in patients with unexplained neurological deficits and cancer.
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