Human hypothalamic neural stem cells transplantation ameliorates age-associated dysfunction through SNS/eNAMPT axis activation in aged mice
Sulistio, Y. A.; Pieknell, K.; Hong, S.; Lee, Y.; Kim, M. S.; Park, W.-Y.; Han, K. Y.; Hong, T.; Park, K.-S.; Yoon, S. G.; Kim, I. Y.; Seong, J. K.; Lee, T. Y.; Kim, M. S.; Lee, S.-H.
Show abstract
The hypothalamus is the brain region that regulates systemic body metabolism and multiple brain functions. The adult hypothalamus harbors neural stem/precursor cell (NSC)-like cells. Along with age-related body changes, the hypothalamic NSC (htNSC) population declines, indicating the potential of htNSC replacement as an anti-aging strategy. Here, we developed protocol to generate htNSCs from human pluripotent stem cells (hPSCs). Implanting the hPSC-derived htNSCs into the hypothalamus of aged mice ameliorated age-related declines in metabolic fitness, physical capacity, and cognitive function. Mechanistically, these anti-aging effects were mediated by inter-tissue communication: enhanced neuronal activity in the htNSC-transplanted hypothalamus stimulated adipose tissues to produce and release the anti-aging molecule eNAMPT into systemic circulation via the sympathetic nervous system. Concurrently, the aged inflammatory environment in the hypothalamus was alleviated by peripheral anti-aging signals. Collectively, our findings support the potential of anti- or healthy aging therapies by targeting hypothalamus.
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