Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Subscribe

Sci. Signal., 14 April 2009
Vol. 2, Issue 66, p. ra16
[DOI: 10.1126/scisignal.2000098]

RESEARCH ARTICLES

Editor's Summary

Poking Cells into Invaginating
Mesoderm invagination is the first step toward building the second of the three layers during embryogenesis. In Drosophila, mesoderm invagination is a two-step process, each step under the control of a specific transcription factor. Pouille et al. provide evidence that the first wave of cell constriction, which is controlled by Snail, triggers a mechanical signal that generates the second wave of cell constriction, which is controlled by Twist, and together these two cell constriction events lead to mesoderm invagination. The mechanical signal from the first constriction wave inhibits endocytosis, which promotes signaling of the secreted protein Fog, and stimulates the redistribution of the motor protein Myosin II. In Drosophila embryos lacking Snail and, thus, lacking this first wave of cell constriction, mesoderm invagination can be restored by mechanical indentation of the embryo at the appropriate time during development or by inhibiting endocytosis with the use of a temperature-sensitive form of dynamin, a protein required for clathrin-mediated endocytosis.

Citation: P.-A. Pouille, P. Ahmadi, A.-C. Brunet, E. Farge, Mechanical Signals Trigger Myosin II Redistribution and Mesoderm Invagination in Drosophila Embryos. Sci. Signal. 2, ra16 (2009).

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Subcellular and supracellular mechanical stress prescribes cytoskeleton behavior in Arabidopsis cotyledon pavement cells.
A. Sampathkumar, P. Krupinski, R. Wightman, P. Milani, A. Berquand, A. Boudaoud, O. Hamant, H. Jonsson, and E. M. Meyerowitz (2014)
eLife Sci 3, e01967
   Abstract »    Full Text »    PDF »
Patched1 is required in neural crest cells for the prevention of orofacial clefts.
V. Metzis, A. D. Courtney, M. C. Kerr, C. Ferguson, M. C. Rondon Galeano, R. G. Parton, B. J. Wainwright, and C. Wicking (2013)
Hum. Mol. Genet. 22, 5026-5035
   Abstract »    Full Text »    PDF »
The mechanical anisotropy in a tissue promotes ordering in hexagonal cell packing.
K. Sugimura and S. Ishihara (2013)
Development 140, 4091-4101
   Abstract »    Full Text »    PDF »
Signalling through mechanical inputs - a coordinated process.
H. Zhang and M. Labouesse (2012)
J. Cell Sci. 125, 3039-3049
   Abstract »    Full Text »    PDF »
Mechanosensitive mechanisms in transcriptional regulation.
A. Mammoto, T. Mammoto, and D. E. Ingber (2012)
J. Cell Sci. 125, 3061-3073
   Abstract »    Full Text »    PDF »
Not just inductive: a crucial mechanical role for the endoderm during heart tube assembly.
V. D. Varner and L. A. Taber (2012)
Development 139, 1680-1690
   Abstract »    Full Text »    PDF »
Embryonic Clutch Control.
W. Razzell and P. Martin (2012)
Science 335, 1181-1182
   Abstract »    Full Text »    PDF »
The extracellular matrix: A dynamic niche in cancer progression.
P. Lu, V. M. Weaver, and Z. Werb (2012)
J. Cell Biol. 196, 395-406
   Abstract »    Full Text »    PDF »
Mechanosensitive shivering of model tissues under controlled aspiration.
K. Guevorkian, D. Gonzalez-Rodriguez, C. Carlier, S. Dufour, and F. Brochard-Wyart (2011)
PNAS 108, 13387-13392
   Abstract »    Full Text »    PDF »
Phosphoinositides in Cell Architecture.
A. Shewan, D. J. Eastburn, and K. Mostov (2011)
Cold Spring Harb Perspect Biol 3, a004796
   Abstract »    Full Text »    PDF »
Integrin adhesion drives the emergent polarization of active cytoskeletal stresses to pattern cell delamination.
C. Meghana, N. Ramdas, F. M. Hameed, M. Rao, G. V. Shivashankar, and M. Narasimha (2011)
PNAS 108, 9107-9112
   Abstract »    Full Text »    PDF »
Fluidization of tissues by cell division and apoptosis.
J. Ranft, M. Basan, J. Elgeti, J.-F. Joanny, J. Prost, and F. Julicher (2010)
PNAS 107, 20863-20868
   Abstract »    Full Text »    PDF »
Mechanical control of tissue and organ development.
T. Mammoto and D. E. Ingber (2010)
Development 137, 1407-1420
   Abstract »    Full Text »    PDF »
Cochlear outer hair cells undergo an apical circumference remodeling constrained by the hair bundle shape.
R. Etournay, L. Lepelletier, J. B. de Monvel, V. Michel, N. Cayet, M. Leibovici, D. Weil, I. Foucher, J.-P. Hardelin, and C. Petit (2010)
Development 137, 1373-1383
   Abstract »    Full Text »    PDF »
Integration of contractile forces during tissue invagination.
A. C. Martin, M. Gelbart, R. Fernandez-Gonzalez, M. Kaschube, and E. F. Wieschaus (2010)
J. Cell Biol. 188, 735-749
   Abstract »    Full Text »    PDF »
Cell Mechanics and Feedback Regulation of Actomyosin Networks.
R. Fernandez-Gonzalez and J. A. Zallen (2009)
Science Signaling 2, pe78
   Abstract »    Full Text »    PDF »

To Advertise     Find Products


Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882