Designing synthetic regulatory networks capable of self-organizing cell polarization.
Designing synthetic regulatory networks capable of self-organizing cell polarization.
复制标题
设计能够自组织细胞极化的合成调节网络。
DOI:
10.1016/j.cell.2012.08.040
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发表时间:
2012-10-12
期刊:
影响因子:
64.5
通讯作者:
Lim WA
中科院分区:
文献类型:
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作者:
Chau AH;Walter JM;Gerardin J;Tang C;Lim WA
How cells form global, self-organized structures using genetically encoded molecular rules remains elusive. Here, we take a synthetic biology approach to investigate the design principles governing cell polarization. First, using a coarse-grained computational model, we searched for all possible simple networks that can achieve polarization. All solutions contained one of three minimal motifs – positive feedback, mutual inhibition, or inhibitor with positive feedback. These minimal motifs alone could achieve polarization under limited conditions; circuits that combined two or more of these motifs were significantly more robust. With these design principles as a blueprint, we experimentally constructed artificial polarization networks in yeast, using a toolkit of chimeric signaling proteins that spatially direct the synthesis and degradation of phosphatidylinositol (3,4,5)-trisphosphate (PIP3). Circuits with combinatorial motifs yielded clear foci of synthetic PIP3 that can persist for nearly an hour. Thus, by harnessing localization-regulated signaling molecules, we can engineer simple molecular circuits that reliably execute spatial self-organized programs.
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影响因子:
4.3
作者:
Jilkine A;Edelstein-Keshet L
通讯作者:
Edelstein-Keshet L
影响因子:
9.2
作者:
Kozubowski, Lukasz;Saito, Koji;Johnson, Jayme M.;Howell, Audrey S.;Zyla, Trevin R.;Lew, Daniel J.
通讯作者:
Lew, Daniel J.
影响因子:
21.3
作者:
Doe, CQ
通讯作者:
Doe, CQ
影响因子:
64.8
作者:
Dove, SK;Cooke, FT;Michell, RH
通讯作者:
Michell, RH
DOI:
10.1038/nrg2775
发表时间:
2010-05
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
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