Mllt10 knockout mouse model reveals critical role of Af10-dependent H3K79 methylation in midfacial development.
Mllt10 knockout mouse model reveals critical role of Af10-dependent H3K79 methylation in midfacial development.
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DOI:
10.1038/s41598-017-11745-5
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发表时间:
2017-09-20
影响因子:
4.6
通讯作者:
Sakai D
中科院分区:
文献类型:
--
作者:
Ogoh H;Yamagata K;Nakao T;Sandell LL;Yamamoto A;Yamashita A;Tanga N;Suzuki M;Abe T;Kitabayashi I;Watanabe T;Sakai D
Epigenetic regulation is required to ensure the precise spatial and temporal pattern of gene expression that is necessary for embryonic development. Although the roles of some epigenetic modifications in embryonic development have been investigated in depth, the role of methylation at lysine 79 (H3K79me) is poorly understood. Dot1L, a unique methyltransferase for H3K79, forms complexes with distinct sets of co-factors. To further understand the role of H3K79me in embryogenesis, we generated a mouse knockout of Mllt10, the gene encoding Af10, one Dot1L complex co-factor. We find homozygous Mllt10 knockout mutants (Mllt10-KO) exhibit midline facial cleft. The midfacial defects of Mllt10-KO embryos correspond to hyperterolism and are associated with reduced proliferation of mesenchyme in developing nasal processes and adjacent tissue. We demonstrate that H3K79me level is significantly decreased in nasal processes of Mllt10-KO embryos. Importantly, we find that expression of AP2α, a gene critical for midfacial development, is directly regulated by Af10-dependent H3K79me, and expression AP2α is reduced specifically in nasal processes of Mllt10-KO embryos. Suppression of H3K79me completely mimicked the Mllt10-KO phenotype. Together these data are the first to demonstrate that Af10-dependent H3K79me is essential for development of nasal processes and adjacent tissues, and consequent midfacial formation.
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影响因子:
4.5
作者:
Cox SG;Kim H;Garnett AT;Medeiros DM;An W;Crump JG
通讯作者:
Crump JG
影响因子:
9.2
作者:
Feng, Q;Wang, HB;Zhang, Y
通讯作者:
Zhang, Y
影响因子:
16.6
作者:
Cho MH;Park JH;Choi HJ;Park MK;Won HY;Park YJ;Lee CH;Oh SH;Song YS;Kim HS;Oh YH;Lee JY;Kong G
通讯作者:
Kong G
影响因子:
56.9
作者:
Gray, PA;Fu, H;Ma, QF
通讯作者:
Ma, QF
DOI:
10.1038/nrg3173
发表时间:
2012-04-03
期刊:
Nature reviews. Genetics
影响因子:
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作者:
通讯作者:
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