TBC1D3 promotes neural progenitor proliferation by suppressing the histone methyltransferase G9a.
TBC1D3 promotes neural progenitor proliferation by suppressing the histone methyltransferase G9a.
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TBC1D3 抑制组蛋白赖氨酸 N-甲基转移酶 G9a 促进神经祖细胞增殖和皮质扩张
DOI:
10.1126/sciadv.aba8053
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发表时间:
2021-01
期刊:
影响因子:
13.6
通讯作者:
Luo ZG
中科院分区:
文献类型:
--
作者:
Hou QQ;Xiao Q;Sun XY;Ju XC;Luo ZG
A hominoid-specific gene promotes cortical expansion via regulating histone modification. Genomic changes during human linage evolution contribute to the expansion of the cerebral cortex to allow more advanced thought processes. The hominoid-specific gene TBC1D3 displays robust capacity of promoting the generation and proliferation of neural progenitors (NPs), which are thought to contribute to cortical expansion. However, the underlying mechanisms remain unclear. Here, we found that TBC1D3 interacts with G9a, a euchromatic histone lysine N-methyltransferase, which mediates dimethylation of histone 3 in lysine 9 (H3K9me2), a suppressive mark for gene expression. TBC1D3 displayed an inhibitory role in G9a’s histone methyltransferase activity. Treatment with G9a inhibitor markedly increased NP proliferation and promoted human cerebral organoid expansion, mimicking the effects caused by TBC1D3 up-regulation. By contrast, blockade of TBC1D3/G9a interaction to disinhibit G9a caused up-regulation of H3K9me2, suppressed NP proliferation, and impaired organoid development. Together, this study has demonstrated a mechanism underlying the role of a hominoid-specific gene in promoting cortical expansion.
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DOI:
10.1038/nrg3336
发表时间:
2012-12
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
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影响因子:
64.8
作者:
Nuttle X;Giannuzzi G;Duyzend MH;Schraiber JG;Narvaiza I;Sudmant PH;Penn O;Chiatante G;Malig M;Huddleston J;Benner C;Camponeschi F;Ciofi-Baffoni S;Stessman HA;Marchetto MC;Denman L;Harshman L;Baker C;Raja A;Penewit K;Janke N;Tang WJ;Ventura M;Banci L;Antonacci F;Akey JM;Amemiya CT;Gage FH;Reymond A;Eichler EE
通讯作者:
Eichler EE
影响因子:
82.9
作者:
Nagahara, H;Vocero-Akbani, AM;Dowdy, SF
通讯作者:
Dowdy, SF
影响因子:
7.7
作者:
Ju, Xiang-Chun;Hou, Qiong-Qiong;Luo, Zhen-Ge
通讯作者:
Luo, Zhen-Ge
影响因子:
64.5
作者:
Lui JH;Hansen DV;Kriegstein AR
通讯作者:
Kriegstein AR