Blood. 2011 Jul 21;118(3):675-8. Epub 2011 May 31.

Chromothripsis identifies a rare and aggressive entity among newly diagnosed multiple myeloma patients.

Magrangeas F, Avet-Loiseau H, Munshi NC, Minvielle S.

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Inserm U892, Université de Nantes, Nantes, France.

Abstract

Multiple myeloma (MM) develops from a premalignant plasma cell proliferative disorder, and with time can progress to a more aggressive disease in extramedullary locations. The gradually clinical evolution is supported by clonal expansion of cells that acquire genetic lesions over years. This model of cancer evolution based on ongoing genomic instability mechanism may apply to development of most MM cases. However, in a small fraction of newly diagnosed MM who relapse quickly and finally die within 2 years, the gradual model appears to be untenable. Analysis of high resolution copy number profiles obtained using single nucleotide polymorphism array data from 764 newly diagnosed MM identified large numbers of genomic rearrangements with the hallmarks of chromothripsis in 1.3% of samples. Moreover, this catastrophic event confers a poor outcome. Because chromothripsis appears to occur in a single crisis, our results suggest that high-risk MM patients use this novel way of cancer evolution.

PMID:: 21628407; [PubMed - indexed for MEDLINE]
PMCID:: PMC3142904; [Available on 2012/7/21]

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Chromothripsis identifies a rare and aggressive entity among newly diagnosed mul...
Chromothripsis identifies a rare and aggressive entity among newly diagnosed multiple myeloma patients.
Blood. 2011 Jul 21 ;118(3):675-8. Epub 2011 May 31 .

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Chromothripsis identifies a rare and aggressive entity among newly diagnosed multiple myeloma patients.

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