Please use this identifier to cite or link to this item: https://doi.org/10.1006/excr.2002.5579
Title: Furrow-specific endocytosis during cytokinesis of zebrafish blastomeres
Authors: Feng, B.
Schwarz, H.
Jesuthasan, S. 
Keywords: Caveolin
Clathrin
Cytokinesis
Danio rerio
Endocytosis
Issue Date: 2002
Citation: Feng, B., Schwarz, H., Jesuthasan, S. (2002). Furrow-specific endocytosis during cytokinesis of zebrafish blastomeres. Experimental Cell Research 279 (1) : 14-20. ScholarBank@NUS Repository. https://doi.org/10.1006/excr.2002.5579
Abstract: Mutations affecting endocytosis, such as those in clathrin and dynamin, unexpectedly cause defects in cytokinesis in a number of organisms. To explore the relationship between endocytosis and cytokinesis, we used the relatively large cells of the transparent zebrafish embryo. Using fluorescent markers for fluid-phase as well as plasma membrane uptake, we demonstrate that cytokinesis involves furrow-specific endocytosis. Clathrin-coated pits are visible near the furrow in ultrathin sections, while immunolabeling demonstrates that clathrin and caveolin are localized to the cleavage furrow. Hence, it is likely that both clathrin- and caveolae-mediated endocytosis occurs at the furrow during cytokinesis. Dynamin II is also localized to the furrow and may mediate furrow-specific endocytosis. Treatment of embryos with chlorpromazine or with methyl-β-cyclodextrin, both of which inhibit endocytosis, prevents the normal completion of cytokinesis. These data suggest that furrow-specific endocytosis is an integral part of cytokinesis. © 2002 Elsevier Science (USA).
Source Title: Experimental Cell Research
URI: http://scholarbank.nus.edu.sg/handle/10635/132751
ISSN: 00144827
DOI: 10.1006/excr.2002.5579
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