Migration of zebrafish primordial germ cells: A role for myosin contraction and cytoplasmic flow

H. Blaser, M. Reichman Fried, I. Castanon, K. Dumstrei, F. Marlow, K. Kawakami, L. Solnica Krezel, C. Heisenberg, E. Raz, Developmental Cell 11 (2006) 613–627.

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Abstract
The molecular and cellular mechanisms governing cell motility and directed migration in response to the chemokine SDF-1 are largely unknown. Here, we demonstrate that zebrafish primordial germ cells whose migration is guided by SDF-1 generate bleb-like protrusions that are powered by cytoplasmic flow. Protrusions are formed at sites of higher levels of free calcium where activation of myosin contraction occurs. Separation of the acto-myosin cortex from the plasma membrane at these sites is followed by a flow of cytoplasm into the forming bleb. We propose that polarized activation of the receptor CXCR4 leads to a rise in free calcium that in turn activates myosin contraction in the part of the cell responding to higher levels of the ligand SDF-1. The biased formation of new protrusions in a particular region of the cell in response to SDF-1 defines the leading edge and the direction of cell migration.
Publishing Year
Date Published
2006-11-06
Journal Title
Developmental Cell
Volume
11
Issue
5
Page
613 - 627
IST-REx-ID

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Blaser H, Reichman Fried M, Castanon I, et al. Migration of zebrafish primordial germ cells: A role for myosin contraction and cytoplasmic flow. Developmental Cell. 2006;11(5):613-627. doi:10.1016/j.devcel.2006.09.023
Blaser, H., Reichman Fried, M., Castanon, I., Dumstrei, K., Marlow, F., Kawakami, K., … Raz, E. (2006). Migration of zebrafish primordial germ cells: A role for myosin contraction and cytoplasmic flow. Developmental Cell, 11(5), 613–627. https://doi.org/10.1016/j.devcel.2006.09.023
Blaser, Heiko, Michal Reichman Fried, Irinka Castanon, Karin Dumstrei, Florence Marlow, Koichi Kawakami, Lilianna Solnica Krezel, Carl Heisenberg, and Erez Raz. “Migration of Zebrafish Primordial Germ Cells: A Role for Myosin Contraction and Cytoplasmic Flow.” Developmental Cell 11, no. 5 (2006): 613–27. https://doi.org/10.1016/j.devcel.2006.09.023.
H. Blaser et al., “Migration of zebrafish primordial germ cells: A role for myosin contraction and cytoplasmic flow,” Developmental Cell, vol. 11, no. 5, pp. 613–627, 2006.
Blaser H, Reichman Fried M, Castanon I, Dumstrei K, Marlow F, Kawakami K, Solnica Krezel L, Heisenberg C, Raz E. 2006. Migration of zebrafish primordial germ cells: A role for myosin contraction and cytoplasmic flow. Developmental Cell. 11(5), 613–627.
Blaser, Heiko, et al. “Migration of Zebrafish Primordial Germ Cells: A Role for Myosin Contraction and Cytoplasmic Flow.” Developmental Cell, vol. 11, no. 5, Cell Press, 2006, pp. 613–27, doi:10.1016/j.devcel.2006.09.023.

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