Lysosomal Dynamics Orchestrate Neurogenesis [Polysome-seq]

Lysosomes are cellular recycling stations and metabolic signaling hubs. Whether lysosome dynamics regulate mammalian brain development is unknown. We found that radial glia cells possess a large number of endolysosomes and that asymmetric inheritance of lysosomes in daughters of radial glia cells can predict fate and cell cycle length. To determine the translation control by the mTORC1, we performed polysome profiling of mRNAs associated with >3 ribosomes for neural progenitor cells that treated with DMSO or Torin1 for 2 hours. Polysome profiling was performed for mouse E13.5 neural progenitor cells that were cultured overnight and treated with DMSO or Torin1 for 2 hours.