Researchers transform old blood cells into young brain cells
Peer-Reviewed Publication
Updates every hour. Last Updated: 25-Oct-2026 17:15 ET (25-Oct-2026 21:15 GMT/UTC)
People who develop Alzheimer’s disease before the age of 65 experience a growing range of health problems and increasing use of healthcare services years before diagnosis. However, the cardiovascular risk factors traditionally associated with Alzheimer’s disease are no more common among those diagnosed at working age than among age- and sex-matched controls without neurodegenerative disease.
Spinal muscular atrophy (SMA) is a severe neuromuscular disease caused by insufficient SMN protein, yet the critical downstream mechanisms underlying its pathogenesis remain unclear. We previously identified that splicing of the conserved minor intron of Pcyt2 (Phosphocholine cytidylyltransferase 2) depends on sufficient SMN protein. Here, we reveal that simply replacing the minor intron of Pcyt2 with a major intron is sufficient to reverse SMA-associated phenotypes. Based on our discovery that Pcyt2 is specifically expressed in certain neuroglial subtypes, we further show that restoring Pcyt2 in these subtypes significantly alleviates SMA-associated phenotypes in both Drosophila and mouse models. These findings identify Pcyt2 minor intron mis-splicing as a key driver of SMA, offering opportunities for new therapeutic and diagnostic strategies.