De novo formation of left-right asymmetry by posterior tilt of nodal cilia.

De novo formation of left-right asymmetry by posterior tilt of nodal cilia.
复制标题

DOI:
10.1371/journal.pbio.0030268
复制
发表时间:
2005-08
期刊:
影响因子:
9.8
通讯作者:
Hamada H
Hamada H
中科院分区:
生物学1区
文献类型:
--
作者:
Nonaka S;Yoshiba S;Watanabe D;Ikeuchi S;Goto T;Marshall WF;Hamada H

文献摘要

参考文献

被引文献

相似文献

在发育中的小鼠胚胎中,淋巴结腹侧的淋巴液流动决定了左右(L-R)不对称。然而,结纤毛的旋转运动可以产生单向流动的机制仍然是假设的。在这里,我们已经解决了这个问题的运动和形态分析的结纤毛和流体动力学模型实验。我们发现纤毛的立场,而不是垂直于节点表面,但向后倾斜。我们进一步证实了这种后倾可以在模型实验中产生湍流。这些结果强烈表明,L-R不对称性并不是每个细胞内预先存在的L-R不对称性的后代,而是通过结合三种空间信息来源重新产生的:前后轴和背腹轴,以及纤毛运动的手征性。发育中的小鼠胚胎的左右不对称性是通过体液流动建立的。在这里,作者演示了如何跳动的纤毛后倾创建这种单向流体流动。
In the developing mouse embryo, leftward fluid flow on the ventral side of the node determines left–right (L-R) asymmetry. However, the mechanism by which the rotational movement of node cilia can generate a unidirectional flow remains hypothetical. Here we have addressed this question by motion and morphological analyses of the node cilia and by fluid dynamic model experiments. We found that the cilia stand, not perpendicular to the node surface, but tilted posteriorly. We further confirmed that such posterior tilt can produce leftward flow in model experiments. These results strongly suggest that L-R asymmetry is not the descendant of pre-existing L-R asymmetry within each cell but is generated de novo by combining three sources of spatial information: antero-posterior and dorso-ventral axes, and the chirality of ciliary movement. Left-right asymmetry in the developing mouse embryo is established by leftward fluid flow. Here the authors demonstrate how a posterior tilt of beating cilia creates this unidirectional fluid flow.
DOI: 10.1083/jcb.121.3.491
发表时间: 1993-05
期刊: The Journal of cell biology
影响因子: --
作者:
Itoh M;Nagafuchi A;Yonemura S;Kitani-Yasuda T;Tsukita S;Tsukita S
通讯作者: Tsukita S
DOI: 10.1016/s1097-2765(00)80197-5
发表时间: 1999-10-01
期刊: MOLECULAR CELL
影响因子: 16
作者:
Okada, Y;Nonaka, S;Hirokawa, N
通讯作者: Hirokawa, N
DOI: 10.1038/40140
发表时间: 1997-10-30
期刊: NATURE
影响因子: 64.8
作者:
Supp, DM;Witte, DP;Brueckner, M
通讯作者: Brueckner, M
DOI: 10.1016/s0092-8674(00)81705-5
发表时间: 1998-12-11
期刊: CELL
影响因子: 64.5
作者:
Nonaka, S;Tanaka, Y;Hirokawa, N
通讯作者: Hirokawa, N
DOI: 10.1017/s0022112087001022
发表时间: 1987-04-01
影响因子: 3.7
作者:
CHILDRESS, S;KOEHL, MAR;MIKSIS, M
通讯作者: MIKSIS, M