Transgenic rhesus monkeys carrying the human MCPH1 gene copies show human-like neoteny of brain development.
Transgenic rhesus monkeys carrying the human MCPH1 gene copies show human-like neoteny of brain development.
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携带人类 MCPH1 基因拷贝的转基因恒河猴表现出类似人类的大脑发育幼态持续状态
DOI:
10.1093/nsr/nwz043
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发表时间:
2019-05
影响因子:
20.6
通讯作者:
Su B
中科院分区:
文献类型:
--
作者:
Shi L;Luo X;Jiang J;Chen Y;Liu C;Hu T;Li M;Lin Q;Li Y;Huang J;Wang H;Niu Y;Shi Y;Styner M;Wang J;Lu Y;Sun X;Yu H;Ji W;Su B
Abstract Brain size and cognitive skills are the most dramatically changed traits in humans during evolution and yet the genetic mechanisms underlying these human-specific changes remain elusive. Here, we successfully generated 11 transgenic rhesus monkeys (8 first-generation and 3 second-generation) carrying human copies of MCPH1, an important gene for brain development and brain evolution. Brain-image and tissue-section analyses indicated an altered pattern of neural-cell differentiation, resulting in a delayed neuronal maturation and neural-fiber myelination of the transgenic monkeys, similar to the known evolutionary change of developmental delay (neoteny) in humans. Further brain-transcriptome and tissue-section analyses of major developmental stages showed a marked human-like expression delay of neuron differentiation and synaptic-signaling genes, providing a molecular explanation for the observed brain-developmental delay of the transgenic monkeys. More importantly, the transgenic monkeys exhibited better short-term memory and shorter reaction time compared with the wild-type controls in the delayed-matching-to-sample task. The presented data represent the first attempt to experimentally interrogate the genetic basis of human brain origin using a transgenic monkey model and it values the use of non-human primates in understanding unique human traits.
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影响因子:
64.5
作者:
Chen Y;Yu J;Niu Y;Qin D;Liu H;Li G;Hu Y;Wang J;Lu Y;Kang Y;Jiang Y;Wu K;Li S;Wei J;He J;Wang J;Liu X;Luo Y;Si C;Bai R;Zhang K;Liu J;Huang S;Chen Z;Wang S;Chen X;Bao X;Zhang Q;Li F;Geng R;Liang A;Shen D;Jiang T;Hu X;Ma Y;Ji W;Sun YE
通讯作者:
Sun YE
影响因子:
21.3
作者:
Gruber, Ralph;Zhou, Zhongwei;Wang, Zhao-Qi
通讯作者:
Wang, Zhao-Qi
影响因子:
25
作者:
Jennings, Charles;Landman, Rogier;Feng, Guoping
通讯作者:
Feng, Guoping
影响因子:
30.8
作者:
Bentwich, I;Avniel, A;Bentwich, Z
通讯作者:
Bentwich, Z
影响因子:
56.9
作者:
FUSTER, JM;ALEXANDER, GE
通讯作者:
ALEXANDER, GE