A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest.
A multiple super-enhancer region establishes inter-TAD interactions and controls Hoxa function in cranial neural crest.
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DOI:
10.1038/s41467-023-38953-0
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发表时间:
2023-06-05
影响因子:
16.6
通讯作者:
Rijli, Filippo M.
中科院分区:
文献类型:
--
作者:
Kessler, Sandra;Minoux, Maryline;Joshi, Onkar;Ben Zouari, Yousra;Ducret, Sebastien;Ross, Fiona;Vilain, Nathalie;Salvi, Adwait;Wolff, Joachim;Kohler, Hubertus;Stadler, Michael B.;Rijli, Filippo M.
Enhancer-promoter interactions preferentially occur within boundary-insulated topologically associating domains (TADs), limiting inter-TAD interactions. Enhancer clusters in linear proximity, termed super-enhancers (SEs), ensure high target gene expression levels. Little is known about SE topological regulatory impact during craniofacial development. Here, we identify 2232 genome-wide putative SEs in mouse cranial neural crest cells (CNCCs), 147 of which target genes establishing CNCC positional identity during face formation. In second pharyngeal arch (PA2) CNCCs, a multiple SE-containing region, partitioned into Hoxa Inter-TAD Regulatory Element 1 and 2 (HIRE1 and HIRE2), establishes long-range inter-TAD interactions selectively with Hoxa2, that is required for external and middle ear structures. HIRE2 deletion in a Hoxa2 haploinsufficient background results in microtia. HIRE1 deletion phenocopies the full homeotic Hoxa2 knockout phenotype and induces PA3 and PA4 CNCC abnormalities correlating with Hoxa2 and Hoxa3 transcriptional downregulation. Thus, SEs can overcome TAD insulation and regulate anterior Hoxa gene collinear expression in a CNCC subpopulation-specific manner during craniofacial development. The authors discovered a far distant genomic region containing multiple clusters of regulatory elements that drive coordinated Hoxa expression across chromatin topologically associating domains in cranial neural crest, and are required for patterning of facial structures.
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影响因子:
4.5
作者:
Bridoux L;Zarrineh P;Mallen J;Phuycharoen M;Latorre V;Ladam F;Losa M;Baker SM;Sagerstrom C;Mace KA;Rattray M;Bobola N
通讯作者:
Bobola N
DOI:
10.1073/pnas.0807297105
发表时间:
2008-09-30
影响因子:
11.1
作者:
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通讯作者:
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影响因子:
56.9
作者:
Dekker, J;Rippe, K;Kleckner, N
通讯作者:
Kleckner, N