2013
DOI: 10.1126/science.1227670
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Variable Clonal Repopulation Dynamics Influence Chemotherapy Response in Colorectal Cancer

Abstract: Intratumoral heterogeneity arises through the evolution of genetically diverse subclones during tumor progression. However, it remains unknown whether cells within single genetic clones are functionally equivalent. By combining DNA copy number alteration (CNA) profiling, sequencing, and lentiviral lineage tracking, we followed the repopulation dynamics of 150 single lentivirus-marked lineages from 10 human colorectal cancers through serial xenograft passages in mice. CNA and mutational analysis distinguished i… Show more

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Cited by 674 publications
(593 citation statements)
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“…Mais quel est le rôle des variations aléatoires de l'expression génique dans le cancer ? Certaines études lui attribuent un rôle dans la diversification fonctionnelle de cellules cancéreuses qui ont acquis des phénotypes très différents malgré un génome stable [17]. D'autres supposent qu'elles sont impliquées dans les transitions stochastiques entre sous-populations différentes de cellules cancéreuses [18].…”
Section: Les Variations Aléatoires De L'expression Géniqueunclassified
“…Mais quel est le rôle des variations aléatoires de l'expression génique dans le cancer ? Certaines études lui attribuent un rôle dans la diversification fonctionnelle de cellules cancéreuses qui ont acquis des phénotypes très différents malgré un génome stable [17]. D'autres supposent qu'elles sont impliquées dans les transitions stochastiques entre sous-populations différentes de cellules cancéreuses [18].…”
Section: Les Variations Aléatoires De L'expression Géniqueunclassified
“…The PDX mouse tumor model system provides a renewable source of human tumor tissue displaying similar tissue structures as clinical material (32,33). Mice were sourced from The Jackson Laboratory.…”
Section: Methodsmentioning
confidence: 99%
“…They mention how the tumour becomes heterogeneous, since the earlier perception was that cancer is made up of clones of the originator cell. Additionally, nowadays, studies indicate that both the models have merit and should not be considered mutually exclusive [7,8].…”
Section: Introductionmentioning
confidence: 99%