
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: June 16, 2024
Abstract INTRODUCTION Skeletal muscle regulates central nervous system (CNS) function and health, activating the muscle-to-brain axis through secretion of skeletal originating factors (‘myokines’) with neuroprotective properties. However, precise mechanisms underlying these benefits in context Alzheimer’s disease (AD) remain poorly understood. METHODS To investigate signaling response to amyloid β (Aβ)- induced toxicity, we generated 5xFAD transgenic female mice enhanced (5xFAD;cTFEB;HSACre) at prodromal (4-months old) late (8-months symptomatic stages. RESULTS TFEB overexpression reduced Aβ plaque accumulation cortex hippocampus both ages rescued behavioral neurocognitive deficits 8- months-old mice. These changes were associated transcriptional protein remodeling neurotrophic synaptic integrity, partially due CNS-targeting myokine prosaposin (PSAP). DISCUSSION Our findings implicate as a novel pathway against pathogenesis AD.
Language: Английский