Anillin-dependent organization of septin filaments promotes intercellular bridge elongation and Chmp4B targeting to the abscission site.
Anillin-dependent organization of septin filaments promotes intercellular bridge elongation and Chmp4B targeting to the abscission site.
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DOI:
10.1098/rsob.130190
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发表时间:
2014-01-22
期刊:
影响因子:
5.8
通讯作者:
Wilde A
中科院分区:
文献类型:
--
作者:
Renshaw MJ;Liu J;Lavoie BD;Wilde A
The final step of cytokinesis is abscission when the intercellular bridge (ICB) linking the two new daughter cells is broken. Correct construction of the ICB is crucial for the assembly of factors involved in abscission, a failure in which results in aneuploidy. Using live imaging and subdiffraction microscopy, we identify new anillin–septin cytoskeleton-dependent stages in ICB formation and maturation. We show that after the formation of an initial ICB, septin filaments drive ICB elongation during which tubules containing anillin–septin rings are extruded from the ICB. Septins then generate sites of further constriction within the mature ICB from which they are subsequently removed. The action of the anillin–septin complex during ICB maturation also primes the ICB for the future assembly of the ESCRT III component Chmp4B at the abscission site. These studies suggest that the sequential action of distinct contractile machineries coordinates the formation of the abscission site and the successful completion of cytokinesis.
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DOI:
10.1083/jcb.201204107
发表时间:
2012-09-03
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bastos RN;Penate X;Bates M;Hammond D;Barr FA
通讯作者:
Barr FA
影响因子:
4.6
作者:
Field, CM;Coughlin, M;Sullivan, W
通讯作者:
Sullivan, W
影响因子:
--
作者:
Dobbie IM;King E;Parton RM;Carlton PM;Sedat JW;Swedlow JR;Davis I
通讯作者:
Davis I
影响因子:
21.3
作者:
Lawo, Steffen;Hasegan, Monica;Pelletier, Laurence
通讯作者:
Pelletier, Laurence
影响因子:
56.9
作者:
Guizetti, Julien;Schermelleh, Lothar;Gerlich, Daniel W.
通讯作者:
Gerlich, Daniel W.