LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

STING mediates neurodegeneration and neuroinflammation in nigrostriatal α-synucleinopathy

Significance It is increasingly recognized that chronic neuroinflammation is causally relevant to neurodegeneration. In Parkinson’s disease (PD), α-synuclein pathology activates inflammatory signaling that disturbs parenchymal homeostasis and disrupts neuron-glia interactions.… Click to show full abstract

Significance It is increasingly recognized that chronic neuroinflammation is causally relevant to neurodegeneration. In Parkinson’s disease (PD), α-synuclein pathology activates inflammatory signaling that disturbs parenchymal homeostasis and disrupts neuron-glia interactions. Herein, we report that the innate immune cyclic GMP-AMP synthase (cGAS)/stimulator of interferon genes (STING) DNA-sensing pathway is activated in a mouse model of α-synucleinopathy and parkinsonism, leading to type-I interferon activation that precedes the onset of neurodegeneration. Remarkably, STING-deficient mice were protected from dopaminergic neuron loss in this model. We also show that αSyn aggregates can increase STING expression and augment canonical STING activation, suggesting a possible generalized propensity for exaggerated antiviral responses in neurological states with STING elevation. Our results suggest that STING inhibition may be therapeutic in idiopathic PD and possibly other human α-synucleinopathies.

Keywords: sting mediates; neuroinflammation nigrostriatal; neuroinflammation; nigrostriatal synucleinopathy; mediates neurodegeneration; neurodegeneration neuroinflammation

Journal Title: Proceedings of the National Academy of Sciences of the United States of America
Year Published: 2022

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.