Vesicles and actin are targeted to the cleavage furrow via furrow microtubules and the central spindle.
Vesicles and actin are targeted to the cleavage furrow via furrow microtubules and the central spindle.
复制标题
囊泡和肌动蛋白通过沟微管和中央纺锤体靶向卵裂沟。
DOI:
10.1083/jcb.200803096
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发表时间:
2008-06-02
期刊:
影响因子:
--
通讯作者:
Sullivan W
中科院分区:
文献类型:
--
作者:
Albertson R;Cao J;Hsieh TS;Sullivan W
During cytokinesis, cleavage furrow invagination requires an actomyosin-based contractile ring and addition of new membrane. Little is known about how this actin and membrane traffic to the cleavage furrow. We address this through live analysis of fluorescently tagged vesicles in postcellularized Drosophila melanogaster embryos. We find that during cytokinesis, F-actin and membrane are targeted as a unit to invaginating furrows through formation of F-actin–associated vesicles. F-actin puncta strongly colocalize with endosomal, but not Golgi-derived, vesicles. These vesicles are recruited to the cleavage furrow along the central spindle and a distinct population of microtubules (MTs) in contact with the leading furrow edge (furrow MTs). We find that Rho-specific guanine nucleotide exchange factor mutants, pebble (pbl), severely disrupt this F-actin–associated vesicle transport. These transport defects are a consequence of the pbl mutants' inability to properly form furrow MTs and the central spindle. Transport of F-actin–associated vesicles on furrow MTs and the central spindle is thus an important mechanism by which actin and membrane are delivered to the cleavage furrow.
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影响因子:
2.7
作者:
Danilchik, MV;Funk, WC;Larkin, K
通讯作者:
Larkin, K
影响因子:
3.3
作者:
Giansanti, MG;Farkas, RM;Gatti, M
通讯作者:
Gatti, M
影响因子:
11.4
作者:
Hill, E;Clarke, N;Barr, FA
通讯作者:
Barr, FA
DOI:
10.1083/jcb.111.5.1905
发表时间:
1990-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Cao LG;Wang YL
通讯作者:
Wang YL
影响因子:
4
作者:
Fernandez-Borja, M;Janssen, L;Neefjes, J
通讯作者:
Neefjes, J