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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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
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author Tassa K Saldi
Patrick K Gonzales
Thomas J LaRocca
Christopher D Link
author_facet Tassa K Saldi
Patrick K Gonzales
Thomas J LaRocca
Christopher D Link
author_sort Tassa K Saldi
collection DOAJ
description 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.
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spelling doaj.art-d101bdd4f5e14be3b02e34f0c8b274132022-12-22T00:50:46ZengSAGE PublishingJournal of Experimental Neuroscience1179-06952019-02-011310.1177/1179069519830697Neurodegeneration, Heterochromatin, and Double-Stranded RNATassa K Saldi0Patrick K Gonzales1Thomas J LaRocca2Christopher D Link3Department of Biochemistry and Molecular Genetics, University of Colorado, Aurora, CO, USADepartment of Integrative Physiology, University of Colorado, Boulder, CO, USADepartment of Integrative Physiology, University of Colorado, Boulder, CO, USADepartment of Integrative Physiology, University of Colorado, Boulder, CO, USAChanges 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.https://doi.org/10.1177/1179069519830697
spellingShingle Tassa K Saldi
Patrick K Gonzales
Thomas J LaRocca
Christopher D Link
Neurodegeneration, Heterochromatin, and Double-Stranded RNA
Journal of Experimental Neuroscience
title Neurodegeneration, Heterochromatin, and Double-Stranded RNA
title_full Neurodegeneration, Heterochromatin, and Double-Stranded RNA
title_fullStr Neurodegeneration, Heterochromatin, and Double-Stranded RNA
title_full_unstemmed Neurodegeneration, Heterochromatin, and Double-Stranded RNA
title_short Neurodegeneration, Heterochromatin, and Double-Stranded RNA
title_sort neurodegeneration heterochromatin and double stranded rna
url https://doi.org/10.1177/1179069519830697
work_keys_str_mv AT tassaksaldi neurodegenerationheterochromatinanddoublestrandedrna
AT patrickkgonzales neurodegenerationheterochromatinanddoublestrandedrna
AT thomasjlarocca neurodegenerationheterochromatinanddoublestrandedrna
AT christopherdlink neurodegenerationheterochromatinanddoublestrandedrna