Repeated cleavage failure does not establish centrosome amplification in untransformed human cells

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Repeated cleavage failure does not establish centrosome amplification in untransformed human cells

We tested whether cleavage failure as a transient event establishes an incidence of centrosome amplification in cell populations. Five rounds of ∼30% cytochalasin-induced cleavage failure in untransformed human cell cultures did not establish centrosome amplification in the short or long terms. The progeny of binucleate cells progressively dropped out of the cell cycle and expressed p53/p21, an...

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Centrosome defects are a common feature of many cancers, and they can predispose fly brain cells to form tumours. In flies, centrosome defects perturb the asymmetric division of the neural stem cells, but it is unclear how this might lead to malignant transformation. One possibility is that centrosome defects might also perturb cellular homeostasis: for example, stress pathways are often activa...

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A Clinical Overview of Centrosome Amplification in Human Cancers

The turn of the 21st century had witnessed a surge of interest in the centrosome and its causal relation to human cancer development - a postulate that has existed for almost a century. Centrosome amplification (CA) is frequently detected in a growing list of human cancers, both solid and haematological, and is a candidate "hallmark" of cancer cells. Several lines of evidence support the progre...

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ژورنال

عنوان ژورنال: Journal of Cell Biology

سال: 2011

ISSN: 1540-8140,0021-9525

DOI: 10.1083/jcb.201101073