Key points from article :
Scientists reprogrammed astrocytes into healthy neurons in the brains of living mice.
Replenishing the neuronal population in people suffering from brain damage and age-related cognitive decline
Previously experimented with the small-molecule cocktail of FICB to reprogram fibroblasts in vitro.
This time researchers tried creating neurons from astrocytes in vitro and then in vivo.
Circumvents cell purification, long-term cell survival, and integration into the host tissue.
New neurons established synaptic connections to endogenous neurons.
Achieved via retrograde tracing, which involves infecting neurons with a virus.
Endogenous neurons guided the conversion towards region-specific phenotypes.
Challenges includes development of a viable delivery strategy.
CiNs (chemically induced neurons) from resident astrocytes in vivo can be a milestone in the fight against neuronal loss.
Research by Peking University published in the journal Nature.
