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Related Experiment Video

Updated: Jun 18, 2025

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Paraneoplastic Neurologic Disorders.

Anastasia Zekeridou

    Continuum (Minneapolis, Minn.)
    |August 1, 2024
    PubMed
    Summary

    Paraneoplastic neurologic syndromes and autoimmune conditions are increasingly recognized with immune checkpoint inhibitor (ICI) cancer immunotherapy. Neural antibodies aid diagnosis, prognosis, and treatment of these complex neurological disorders.

    Area of Science:

    • Neurology
    • Immunology
    • Oncology

    Background:

    • Paraneoplastic neurologic syndromes (PNS) are associated with cancer and mediated by immune responses.
    • Neural antibodies are crucial for diagnosing PNS, understanding pathophysiology, and guiding treatment.
    • Immune checkpoint inhibitors (ICIs) have increased the incidence of ICI-related neurologic autoimmunity.

    Purpose of the Study:

    • To review the clinical features, neural antibody associations, and oncologic aspects of PNS.
    • To discuss the impact of ICI therapy on neurologic autoimmunity.
    • To highlight the diagnostic and prognostic value of neural antibodies.

    Main Methods:

    • Literature review of paraneoplastic neurologic syndromes and immune checkpoint inhibitor-associated autoimmunity.

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  • Analysis of neural antibody associations and their clinical significance.
  • Discussion of diagnostic criteria and updated scoring systems for PNS.
  • Main Results:

    • Neural antibody discovery has significantly improved PNS diagnosis and understanding.
    • Antibodies targeting extracellular proteins are pathogenic, while intracellular targets indicate a T-cell response.
    • ICI therapy is associated with distinct phenotypes of immune-mediated neurologic complications.

    Conclusions:

    • Neural antibodies are vital biomarkers for PNS, aiding diagnosis, cancer screening, and prognosis.
    • Early recognition and treatment of ICI-related neurologic autoimmunity are essential for improved patient outcomes.
    • Clinical suspicion of PNS warrants cancer screening and treatment, irrespective of antibody presence.