[Autoimmune-Mediated Encephalomyelitis: a Heterogeneous Entity in Between Neurology and Psychiatry]

Area of Science:

• Neuroimmunology
• Neurology
• Psychiatry

Background:

• Autoantibody-associated encephalitis and encephalomyelitis are gaining clinical and research attention.
• Antibodies targeting intracellular neuronal antigens (classic) and neuronal surface proteins (newer) are key.
• While classic antibodies link to paraneoplastic syndromes, newer ones have looser associations.

Purpose of the Study:

• To provide an overview of autoantibody-associated encephalitis.
• To discuss clinical and pathological aspects.
• To explore underlying immunologic processes from a neuropsychiatric viewpoint.

Main Methods:

• Review of current literature on autoantibody-associated encephalitis.
• Analysis of clinical presentations and pathological findings.
• Examination of immunologic mechanisms involved.

Main Results:

• Identification of distinct antibody targets (intracellular vs. surface neuronal proteins).
• Classification of immune-mediated encephalomyelitic syndromes based on clinical symptoms and specific antibodies.
• N-methyl-D-aspartate-receptor encephalitis as a key example of antibody-defined encephalitis.

Conclusions:

• Autoantibody-associated encephalitis is a heterogeneous group of disorders.
• Antibody identification is critical for diagnosis and classification.
• Understanding immunologic processes is vital for a neuropsychiatric perspective.