Experimental study reveals that FTO deficiency impairs neural stem cell differentiation in adult brains, highlighting an essential regulatory link between m6A demethylation and memory.
Key Points
To determine the biological role of the fat mass and obesity-associated (FTO) protein and m6A demethylation in postnatal neurodevelopment and adult neurogenesis.
Evaluated FTO expression patterns across postnatal neurodevelopment in adult neural stem cells and mature neurons.
Assessed in vivo stem cell proliferation, differentiation, and cognitive performance following FTO depletion.
Conducted genome-wide N6-methyladenosine (m6A) profiling to identify downstream molecular targets regulated by FTO.
Loss of FTO reduced adult neural stem cell proliferation and neuronal differentiation in vivo, leading to decreased brain size, reduced body weight, and impaired learning and memory.
Genome-wide profiling demonstrated dynamic m6A modification during postnatal neurodevelopment, with FTO deficiency altering the expression of several m6A-marked components of the brain-derived neurotrophic factor pathway.