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Nature 446, 38-39 (1 March 2007) | doi:10.1038/446038a; Published online 28 February 2007

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Cell biology: Aneuploidy and cancer

David Pellman1

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Aneuploidy is the condition in which a cell has extra or missing chromosomes, and is often associated with tumours. But whether it is a cause or a consequence of cancer remains a vexed question.

Aneuploid cancers are like Tolstoy's unhappy families: each aneuploid cancer has its own particular abnormal chromosome content, and thus its own abnormal characteristics. This variability has long frustrated biologists trying to establish whether aneuploidy is a cause or a consequence of malignant transformation.

  1. David Pellman is at the Dana-Farber Cancer Institute, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
    Email: david_pellman@dfci.harvard.edu