EPPS rescues hippocampus-dependent cognitive deficits in APP/PS1 mice by disaggregation of amyloid-β oligomers and plaques.
Hye Yun KimHyunjin Vincent KimSeonmi JoC Justin LeeSeon Young ChoiDong Jin KimYoungSoo KimPublished in: Nature communications (2015)
Alzheimer's disease (AD) is characterized by the transition of amyloid-β (Aβ) monomers into toxic oligomers and plaques. Given that Aβ abnormality typically precedes the development of clinical symptoms, an agent capable of disaggregating existing Aβ aggregates may be advantageous. Here we report that a small molecule, 4-(2-hydroxyethyl)-1-piperazinepropanesulphonic acid (EPPS), binds to Aβ aggregates and converts them into monomers. The oral administration of EPPS substantially reduces hippocampus-dependent behavioural deficits, brain Aβ oligomer and plaque deposits, glial γ-aminobutyric acid (GABA) release and brain inflammation in an Aβ-overexpressing, APP/PS1 transgenic mouse model when initiated after the development of severe AD-like phenotypes. The ability of EPPS to rescue Aβ aggregation and behavioural deficits provides strong support for the view that the accumulation of Aβ is an important mechanism underlying AD.
Keyphrases
- mouse model
- small molecule
- cerebral ischemia
- traumatic brain injury
- resting state
- white matter
- oxidative stress
- coronary artery disease
- functional connectivity
- early onset
- prefrontal cortex
- subarachnoid hemorrhage
- cognitive decline
- neuropathic pain
- type diabetes
- adipose tissue
- spinal cord
- brain injury
- blood brain barrier
- skeletal muscle
- drug induced