Polar expeditions - provisioning the centrosome for mitosis
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作者:
Blagden, SP
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Univ Cambridge, Dept Genet, Canc Res UK Cell Cycle Genet Res Grp, Cambridge CB2 3EH, EnglandUniv Cambridge, Dept Genet, Canc Res UK Cell Cycle Genet Res Grp, Cambridge CB2 3EH, England
Blagden, SP
[1
]
Glover, DM
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Univ Cambridge, Dept Genet, Canc Res UK Cell Cycle Genet Res Grp, Cambridge CB2 3EH, EnglandUniv Cambridge, Dept Genet, Canc Res UK Cell Cycle Genet Res Grp, Cambridge CB2 3EH, England
Glover, DM
[1
]
机构:
[1] Univ Cambridge, Dept Genet, Canc Res UK Cell Cycle Genet Res Grp, Cambridge CB2 3EH, England
It is now clear that both centrioles and their surrounding pericentriolar material (PCM) are capable of self-assembly. Whereas centrioles are normally duplicated during G1-S phase, PCM components may be loaded onto centrosomes in both a microtubule-dependent and -independent manner at all stages of the cell cycle. Centrosomes enlarge dramatically after mitotic entry, when both Aurora A and Polo-like kinases cooperate to recruit additional gamma-tubulin ring complexes and microtubule-associated proteins to assist spindle formation.