The MITF paralog tfec is required in neural crest development for fate specification of the iridophore lineage from a multipotent pigment cell progenitor
The MITF paralog tfec is required in neural crest development for fate specification of the iridophore lineage from a multipotent pigment cell progenitor
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MITF 旁系同源物 tfec 在神经嵴发育中是多能色素细胞祖细胞虹彩细胞谱系命运规范所必需的
DOI:
10.1101/862011
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Petratou K
中科院分区:
文献类型:
--
作者:
Petratou K
Understanding how fate specification of distinct cell-types from multipotent progenitors occurs is a fundamental question in embryology. Neural crest stem cells (NCSCs) generate extraordinarily diverse derivatives, including multiple neural, skeletogenic and pigment cell fates. Key transcription factors and extracellular signals specifying NCSC lineages remain to be identified, and we have only a little idea of how and when they function together to control fate. Zebrafish have three neural crest-derived pigment cell types, black melanocytes, light-reflecting iridophores and yellow xanthophores, which offer a powerful model for studying the molecular and cellular mechanisms of fate segregation. Mitfa has been identified as the master regulator of melanocyte fate. Here, we show that an Mitf-related transcription factor, Tfec, functions as master regulator of the iridophore fate. Surprisingly, our phenotypic analysis oftfecmutants demonstrates that Tfec also functions in the initial specification of all three pigment cell-types, although the melanocyte and xanthophore lineages recover later. We show that Mitfa repressestfecexpression, revealing a likely mechanism contributing to the decision between melanocyte and iridophore fate. Our data are consistent with the long-standing proposal of a tripotent progenitor restricted to pigment cell fates. Moreover, we investigate activation, maintenance and function oftfecin multipotent NCSCs, demonstrating for the first time its role in the gene regulatory network forming and maintaining early neural crest cells. In summary, we build on our previous work to characterise the gene regulatory network governing iridophore development, establishing Tfec as the master regulator driving iridophore specification from multipotent progenitors, while shedding light on possible cellular mechanisms of progressive fate restriction.
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影响因子:
--
作者:
J. A. Weston
通讯作者:
J. A. Weston
影响因子:
2.7
作者:
M. Sieber;A. M. Cohen
通讯作者:
A. M. Cohen
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
S. S. Lopes-S.;X. Y. Yang;J. Carney;A. R. Rauch;G.-J Jacoby;A. S. Hurst;R. Johnson;S. L. Ward;A. Kelsh;S. S. Lopes-S.;Xueyan a;Yang;Jeanette Mü Ller;T. Carney;Anthony R. McAdow;Gerd-Jörg Rauch;A. Jacoby;L. Hurst;Mariana Delfino-Machín;P. Haffter;R. Geisler;Stephen L. Johnson;A. Ward;R. Kelsh;Greg Barsh;Stanford
通讯作者:
S. S. Lopes-S.;X. Y. Yang;J. Carney;A. R. Rauch;G.-J Jacoby;A. S. Hurst;R. Johnson;S. L. Ward;A. Kelsh;S. S. Lopes-S.;Xueyan a;Yang;Jeanette Mü Ller;T. Carney;Anthony R. McAdow;Gerd-Jörg Rauch;A. Jacoby;L. Hurst;Mariana Delfino-Machín;P. Haffter;R. Geisler;Stephen L. Johnson;A. Ward;R. Kelsh;Greg Barsh;Stanford
影响因子:
2.7
作者:
Ignatius, Myron S.;Moose, Holly E.;Henion, Paul D.
通讯作者:
Henion, Paul D.
DOI:
10.1007/978-1-4939-9412-0_13
发表时间:
2019
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Petratou K
通讯作者:
Petratou K