Never tear us apart – the importance of centrosome clustering

Author:

Marthiens Véronique1,Piel Matthieu1,Basto Renata1

Affiliation:

1. Institut Curie/CNRS, UMR144, 12 rue Lhomond, Paris 75005, France

Abstract

Summary The presence of more than two centrosomes (centrosome amplification) at the onset of mitosis has long been associated with multipolar spindle formation, and with the generation of genetic instability. However, in recent years, several studies have shown that a process termed ‘centrosome clustering’ actively contributes to bipolar division by promoting the gathering of extra centrosomes in two main poles. In this Commentary, we describe the main proteins that are involved in centriole duplication and discuss how centrosome amplification can be generated both in vitro and in vivo. We then summarize what is currently known about the processes that contribute to bipolar spindle formation when extra centrosomes are present, and which forces contribute to this process. Finally, we discuss how extra centrosomes might contribute to tumorigenesis, giving emphasis to the role of centrosome amplification in promoting genetic instability.

Publisher

The Company of Biologists

Subject

Cell Biology

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