Inhibition of SRGAP2 function by its human-specific paralogs induces neoteny during spine maturation.
Inhibition of SRGAP2 function by its human-specific paralogs induces neoteny during spine maturation.
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SRGAP2 人类特异性旁系同源物对 SRGAP2 功能的抑制可在脊柱成熟过程中诱导幼态持续
DOI:
10.1016/j.cell.2012.03.034
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发表时间:
2012-05-11
期刊:
影响因子:
64.5
通讯作者:
Polleux F
中科院分区:
文献类型:
--
作者:
Charrier C;Joshi K;Coutinho-Budd J;Kim JE;Lambert N;de Marchena J;Jin WL;Vanderhaeghen P;Ghosh A;Sassa T;Polleux F
Structural genomic variations represent a major driving force of evolution and a burst of large segmental gene duplications occurred in the human lineage during its separation from non-human primates. SRGAP2, a gene recently implicated in neocortical development, has undergone two human-specific duplications. Here we find that both duplications (SRGAP2B and SRGAP2C) are partial and encode a truncated F-BAR domain. SRGAP2C is expressed in the developing and adult human brain and dimerizes with ancestral SRGAP2 to inhibit its function. In the mouse neocortex, SRGAP2 promotes spine maturation and limits spine density. Expression of SRGAP2C phenocopies SRGAP2 deficiency. It underlies sustained radial migration and leads to the emergence of human-specific features, including neoteny during spine maturation and increased density of longer spines. These results suggest that inhibition of SRGAP2 function by its human-specific paralogs has contributed to the evolution of the human neocortex and plays an important role during human brain development.
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DOI:
10.1023/a:1024134312173
发表时间:
2002-03-01
期刊:
JOURNAL OF NEUROCYTOLOGY
影响因子:
--
作者:
Benavides-Piccione, R;Ballesteros-Yáñez, I;Yuste, R
通讯作者:
Yuste, R
DOI:
10.1073/pnas.0811025106
发表时间:
2008-12-30
影响因子:
11.1
作者:
Elias, G. M.;Elias, L. A. B.;Nicoll, R. A.
通讯作者:
Nicoll, R. A.
影响因子:
2.5
作者:
Bacon, Claire;Endris, Volker;Rappold, Gudrun
通讯作者:
Rappold, Gudrun
影响因子:
56.9
作者:
Bailey, JA;Gu, ZP;Eichler, EE
通讯作者:
Eichler, EE
影响因子:
4.3
作者:
Arellano JI;Benavides-Piccione R;Defelipe J;Yuste R
通讯作者:
Yuste R