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Signaling by cGAS-STING in Neurodegeneration, Neuroinflammation, and Aging

期刊

TRENDS IN NEUROSCIENCES
卷 44, 期 2, 页码 83-96

出版社

CELL PRESS
DOI: 10.1016/j.tins.2020.10.008

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资金

  1. Solve ME/CFS Initiative (SMCI)
  2. US Public Health Service Grant [DA044123]
  3. American Heart Association (AHA)/Allen Initiativein Brain Health and Cognitive Impairment
  4. Intramural Program of the National Instituteon Aging, NIH
  5. [NIHZ01AG000723-02]

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Recognition of foreign or misplaced nucleic acids is crucial for immune system to detect pathogens. The cGAS-STING pathway plays a key role in this process, but excessive engagement may lead to neuroinflammation and disease progression.
Recognition of foreign or misplaced nucleic acids is one of the principal modes by which the immune system detects pathogenic entities. When cytosolic DNA is sensed, a signal is relayed via the cGAS-STING pathway: this involves the activation of cyclic GMP-AMP (cGMP-AMP) synthase (cGAS) and generation of the cyclic dinucleotide cGAMP, followed by the induction of stimulator of interferon genes (STING). The cGAS-STING pathway responds to viral, bacterial, and self-DNA. Whereas it generally mediates immune surveillance and is often neuroprotective, excessive engagement of the system can be deleterious. This is relevant in aging and age-related neurological diseases, where neuroinflammation contributes to disease progression. This review focuses on cGAS-STING signaling in aging, neurodegeneration, and neuroinflammation, and on therapeutic implications.y

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