Let-7-complex microRNAs regulate the temporal identity of Drosophila mushroom body neurons via chinmo.
Let-7-complex microRNAs regulate the temporal identity of Drosophila mushroom body neurons via chinmo.
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DOI:
10.1016/j.devcel.2012.05.013
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发表时间:
2012-07-17
影响因子:
11.8
通讯作者:
Sokol, Nicholas S.
中科院分区:
文献类型:
--
作者:
Wu, Yen-Chi;Chen, Ching-Huan;Mercer, Adam;Sokol, Nicholas S.
Many neural lineages display a temporal pattern, but the mechanisms controlling the ordered production of neuronal subtypes remains unclear. Here, we show that Drosophila let-7 and miR-125, co-transcribed from the let-7-Complex (let-7-C) locus, regulate the transcription factor chinmo to control temporal cell fate in the mushroom body (MB) lineage. We find that let-7-C is activated in post-mitotic neurons born during the larval-to-pupal transition, when transitions between three MB subtypes occur. Loss or increase of let-7-C delays or accelerates these transitions, respectively, and lead to cell fate transformations. Consistent with our identification of let-7 and miR-125 sites in a recently identified ~6kb extension of the chinmo 3‘UTR, Chinmo is elevated in let-7-C mutant MBs. In addition, we show that let-7-C acts upstream of chinmo and let-7-C phenotypes are caused by elevated chinmo. Thus, these heterochronic miRNAs, originally identified in C. elegans, underlie progenitor cell multipotency during the development of diverse bilateria.
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影响因子:
16
作者:
Yang JS;Lai EC
通讯作者:
Lai EC
影响因子:
16.2
作者:
Sugimura, K;Satoh, D;Uemura, T
通讯作者:
Uemura, T
影响因子:
4
作者:
Ambros, Victor
通讯作者:
Ambros, Victor
影响因子:
64.8
作者:
Graveley BR;Brooks AN;Carlson JW;Duff MO;Landolin JM;Yang L;Artieri CG;van Baren MJ;Boley N;Booth BW;Brown JB;Cherbas L;Davis CA;Dobin A;Li R;Lin W;Malone JH;Mattiuzzo NR;Miller D;Sturgill D;Tuch BB;Zaleski C;Zhang D;Blanchette M;Dudoit S;Eads B;Green RE;Hammonds A;Jiang L;Kapranov P;Langton L;Perrimon N;Sandler JE;Wan KH;Willingham A;Zhang Y;Zou Y;Andrews J;Bickel PJ;Brenner SE;Brent MR;Cherbas P;Gingeras TR;Hoskins RA;Kaufman TC;Oliver B;Celniker SE
通讯作者:
Celniker SE
影响因子:
9.2
作者:
Caygill, Elizabeth E.;Johnston, Laura A.
通讯作者:
Johnston, Laura A.