Coordinated control of neuronal differentiation and wiring by sustained transcription factors.

Autor: Özel MN; Department of Biology, New York University, New York, NY 10003, USA., Gibbs CS; Flatiron Institute, Center for Computational Biology, Simons Foundation, New York, NY 10010, USA.; Center for Data Science, New York University, New York, NY 10003, USA., Holguera I; Department of Biology, New York University, New York, NY 10003, USA., Soliman M; Department of Biology, New York University, New York, NY 10003, USA., Bonneau R; Department of Biology, New York University, New York, NY 10003, USA.; Flatiron Institute, Center for Computational Biology, Simons Foundation, New York, NY 10010, USA.; Center for Data Science, New York University, New York, NY 10003, USA., Desplan C; Department of Biology, New York University, New York, NY 10003, USA.; New York University Abu Dhabi, Saadiyat Island, Abu Dhabi, United Arab Emirates.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2022 Dec 23; Vol. 378 (6626), pp. eadd1884. Date of Electronic Publication: 2022 Dec 23.
DOI: 10.1126/science.add1884
Abstrakt: The large diversity of cell types in nervous systems presents a challenge in identifying the genetic mechanisms that encode it. Here, we report that nearly 200 distinct neurons in the Drosophila visual system can each be defined by unique combinations of on average 10 continuously expressed transcription factors. We show that targeted modifications of this terminal selector code induce predictable conversions of neuronal fates that appear morphologically and transcriptionally complete. Cis-regulatory analysis of open chromatin links one of these genes to an upstream patterning factor that specifies neuronal fates in stem cells. Experimentally validated network models describe the synergistic regulation of downstream effectors by terminal selectors and ecdysone signaling during brain wiring. Our results provide a generalizable framework of how specific fates are implemented in postmitotic neurons.
Databáze: MEDLINE
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