Elevating acetyl-CoA levels reduces aspects of brain aging.
Antonio CurraisLing HuangJoshua GoldbergMichael PetrascheckGamze AtesAntónio Pinto-DuarteMaxim N ShokhirevDavid SchubertPamela MaherPublished in: eLife (2019)
Because old age is the greatest risk factor for dementia, a successful therapy will require an understanding of the physiological changes that occur in the brain with aging. Here, two structurally distinct Alzheimer's disease (AD) drug candidates, CMS121 and J147, were used to identify a unique molecular pathway that is shared between the aging brain and AD. CMS121 and J147 reduced cognitive decline as well as metabolic and transcriptional markers of aging in the brain when administered to rapidly aging SAMP8 mice. Both compounds preserved mitochondrial homeostasis by regulating acetyl-coenzyme A (acetyl-CoA) metabolism. CMS121 and J147 increased the levels of acetyl-CoA in cell culture and mice via the inhibition of acetyl-CoA carboxylase 1 (ACC1), resulting in neuroprotection and increased acetylation of histone H3K9 in SAMP8 mice, a site linked to memory enhancement. These data show that targeting specific metabolic aspects of the aging brain could result in treatments for dementia.
Keyphrases
- cognitive decline
- mild cognitive impairment
- resting state
- white matter
- cerebral ischemia
- fatty acid
- high fat diet induced
- emergency department
- brain injury
- cognitive impairment
- metabolic syndrome
- transcription factor
- bone marrow
- stem cells
- electronic health record
- insulin resistance
- skeletal muscle
- oxidative stress
- big data
- wild type
- cell therapy
- data analysis
- adverse drug
- histone deacetylase