Early anteroposterior regionalisation of human neural crest is shaped by a pro-mesodermal factor
Early anteroposterior regionalisation of human neural crest is shaped by a pro-mesodermal factor
复制标题
人类神经嵴的早期前后区域化是由前中胚层因子塑造的
DOI:
10.1101/2021.09.24.461516
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Gogolou A
中科院分区:
文献类型:
--
作者:
Gogolou A
The neural crest (NC) is an important multipotent embryonic cell population and its impaired specification leads to various developmental defects, often in an anteroposterior (AP) axial level-specific manner. The mechanisms underlying the correct AP regionalisation of human NC cells remain elusive. Recent studies have indicated that trunk NC cells, the presumed precursors of childhood tumour neuroblastoma, are derived from neuromesodermal-potent progenitors of the postcranial body. Here we employ human embryonic stem cell differentiation to define how neuromesodermal progenitor (NMP)-derived NC cells acquire a posterior axial identity. We show that TBXT, a pro-mesodermal transcription factor, mediates early posterior NC/spinal cord regionalisation together with WNT signalling effectors. This occurs by TBXT-driven chromatin remodelling via its binding in key enhancers within HOX gene clusters and other posterior regulator-associated loci. This initial posteriorisation event is succeeded by a second phase of trunk HOX gene control that marks the differentiation of NMPs toward their TBXT-negative NC/spinal cord derivatives and relies predominantly on FGF signalling. Our work reveals a previously unknown role of TBXT in influencing posterior NC fate and points to the existence of temporally discrete, cell type-dependent modes of posterior axial identity control.
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影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
11.8
作者:
Guibentif C;Griffiths JA;Imaz-Rosshandler I;Ghazanfar S;Nichols J;Wilson V;Göttgens B;Marioni JC
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Rothstein M;Bhattacharya D;Simoes-Costa M
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Simoes-Costa M
DOI:
10.1002/bdra.23163
发表时间:
2013-09
期刊:
Birth defects research. Part A, Clinical and molecular teratology
影响因子:
--
作者:
Agopian AJ;Bhalla AD;Boerwinkle E;Finnell RH;Grove ML;Hixson JE;Shimmin LC;Sewda A;Stuart C;Zhong Y;Zhu H;Mitchell LE
通讯作者:
Mitchell LE
影响因子:
4.6
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通讯作者:
Anestis Tsakiridis