Neurodegeneration, Heterochromatin, and Double-Stranded RNA

Changes in chromatin and epigenetic modifications have been associated with aging and aging-associated neurodegenerative diseases, although the causal relationship between these changes and disease-related pathology has been unclear. Recent studies have now made direct connections between neurodegen...

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Bibliographic Details
Main Authors: Tassa K Saldi, Patrick K Gonzales, Thomas J LaRocca, Christopher D Link
Format: Article
Language:English
Published: SAGE Publishing 2019-02-01
Series:Journal of Experimental Neuroscience
Online Access:https://doi.org/10.1177/1179069519830697
Description
Summary:Changes in chromatin and epigenetic modifications have been associated with aging and aging-associated neurodegenerative diseases, although the causal relationship between these changes and disease-related pathology has been unclear. Recent studies have now made direct connections between neurodegeneration-associated proteins and derepression of repetitive element transcription due to changes in heterochromatin. We suggest that this derepression leads to an increased accumulation of intracellular double-stranded RNA (dsRNA), with an attendant induction of innate immune responses that contribute to the neuroinflammation found in essentially all age-associated neurodegenerative diseases.
ISSN:1179-0695