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.
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DOI:
10.1371/journal.pbio.0030268
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发表时间:
2005-08
期刊:
影响因子:
9.8
通讯作者:
Hamada H
中科院分区:
文献类型:
--
作者:
Nonaka S;Yoshiba S;Watanabe D;Ikeuchi S;Goto T;Marshall WF;Hamada H
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.
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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
影响因子:
16
作者:
Okada, Y;Nonaka, S;Hirokawa, N
通讯作者:
Hirokawa, N
影响因子:
64.8
作者:
Supp, DM;Witte, DP;Brueckner, M
通讯作者:
Brueckner, M
影响因子:
64.5
作者:
Nonaka, S;Tanaka, Y;Hirokawa, N
通讯作者:
Hirokawa, N
影响因子:
3.7
作者:
CHILDRESS, S;KOEHL, MAR;MIKSIS, M
通讯作者:
MIKSIS, M