neuronal inclusion body
Abnormal proteinaceous aggregate within neurons, characteristic of various neurodegenerative diseases.
Full Definition
Neuronal inclusion bodies are pathological protein aggregates that accumulate within the cytoplasm, nucleus, or processes of neurons in various neurodegenerative diseases. These structures represent misfolded proteins that have escaped normal cellular degradation mechanisms. Examples include Lewy bodies (alpha-synuclein), neurofibrillary tangles (tau), Pick bodies (tau), Bunina bodies (TDP-43), and Marinesco bodies (ubiquitin). The specific protein composition, morphology, and distribution of inclusion bodies are diagnostic features that help classify different neurodegenerative diseases. These inclusions may be eosinophilic, basophilic, or require specific immunostaining for visualization.
Usage
Usage note: Always specify protein composition when known; distinguish from normal cellular components.
In Context
- "Multiple neuronal inclusion bodies were identified using ubiquitin immunostaining." — Frontotemporal dementia diagnosis
- "The morphology of the inclusion bodies suggested a tauopathy." — Neurodegenerative disease classification