| First Author | Shigeoka T | Year | 2016 |
| Journal | Cell | Volume | 166 |
| Issue | 1 | Pages | 181-92 |
| PubMed ID | 27321671 | Mgi Jnum | J:234647 |
| Mgi Id | MGI:5790529 | Doi | 10.1016/j.cell.2016.05.029 |
| Citation | Shigeoka T, et al. (2016) Dynamic Axonal Translation in Developing and Mature Visual Circuits. Cell 166(1):181-92 |
| abstractText | Local mRNA translation mediates the adaptive responses of axons to extrinsic signals, but direct evidence that it occurs in mammalian CNS axons in vivo is scant. We developed an axon-TRAP-RiboTag approach in mouse that allows deep-sequencing analysis of ribosome-bound mRNAs in the retinal ganglion cell axons of the developing and adult retinotectal projection in vivo. The embryonic-to-postnatal axonal translatome comprises an evolving subset of enriched genes with axon-specific roles, suggesting distinct steps in axon wiring, such as elongation, pruning, and synaptogenesis. Adult axons, remarkably, have a complex translatome with strong links to axon survival, neurotransmission, and neurodegenerative disease. Translationally co-regulated mRNA subsets share common upstream regulators, and sequence elements generated by alternative splicing promote axonal mRNA translation. Our results indicate that intricate regulation of compartment-specific mRNA translation in mammalian CNS axons supports the formation and maintenance of neural circuits in vivo. |
