Generation of Robust Left-Right Asymmetry in the Mouse Embryo Requires a Self-Enhancement and Lateral-Inhibition System

Tetsuya Nakamura, Naoki Mine, Etsushi Nakaguchi, Atsushi Mochizuki, Masamichi Yamamoto, Kenta Yashiro, Chikara Meno, Hiroshi Hamada

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

The bilateral symmetry of the mouse embryo is broken by leftward fluid flow in the node. However, it is unclear how this directional flow is then translated into the robust, left side-specific Nodal gene expression that determines and coordinates left-right situs throughout the embryo. While manipulating Nodal and Lefty gene expression, we have observed phenomena that are indicative of the involvement of a self-enhancement and lateral-inhibition (SELI) system. We constructed a mathematical SELI model that not only simulates, but also predicts, experimental data. As predicted by the model, Nodal expression initiates even on the right side. These results indicate that directional flow represents an initial small difference between the left and right sides of the embryo, but is insufficient to determine embryonic situs. Nodal and Lefty are deployed as a SELI system required to amplify this initial bias and convert it into robust asymmetry.

Original languageEnglish
Pages (from-to)495-504
Number of pages10
JournalDevelopmental Cell
Volume11
Issue number4
DOIs
Publication statusPublished - Oct 1 2006
Externally publishedYes

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Gene expression
Embryonic Structures
Gene Expression
Flow of fluids

All Science Journal Classification (ASJC) codes

  • Developmental Biology

Cite this

Nakamura, T., Mine, N., Nakaguchi, E., Mochizuki, A., Yamamoto, M., Yashiro, K., ... Hamada, H. (2006). Generation of Robust Left-Right Asymmetry in the Mouse Embryo Requires a Self-Enhancement and Lateral-Inhibition System. Developmental Cell, 11(4), 495-504. https://doi.org/10.1016/j.devcel.2006.08.002

Generation of Robust Left-Right Asymmetry in the Mouse Embryo Requires a Self-Enhancement and Lateral-Inhibition System. / Nakamura, Tetsuya; Mine, Naoki; Nakaguchi, Etsushi; Mochizuki, Atsushi; Yamamoto, Masamichi; Yashiro, Kenta; Meno, Chikara; Hamada, Hiroshi.

In: Developmental Cell, Vol. 11, No. 4, 01.10.2006, p. 495-504.

Research output: Contribution to journalArticle

Nakamura, T, Mine, N, Nakaguchi, E, Mochizuki, A, Yamamoto, M, Yashiro, K, Meno, C & Hamada, H 2006, 'Generation of Robust Left-Right Asymmetry in the Mouse Embryo Requires a Self-Enhancement and Lateral-Inhibition System', Developmental Cell, vol. 11, no. 4, pp. 495-504. https://doi.org/10.1016/j.devcel.2006.08.002
Nakamura, Tetsuya ; Mine, Naoki ; Nakaguchi, Etsushi ; Mochizuki, Atsushi ; Yamamoto, Masamichi ; Yashiro, Kenta ; Meno, Chikara ; Hamada, Hiroshi. / Generation of Robust Left-Right Asymmetry in the Mouse Embryo Requires a Self-Enhancement and Lateral-Inhibition System. In: Developmental Cell. 2006 ; Vol. 11, No. 4. pp. 495-504.
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