Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes

Chromosome instability (CIN) refers to an ongoing rate of chromosomal changes and is a driver of genetic, cell-to-cell heterogeneity. It is an aberrant phenotype that is intimately associated with cancer development and progression. The presence, extent, and level of CIN has tremendous implications...

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Main Authors: Raghvendra Vishwakarma, Kirk J. McManus
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/12/4/824
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author Raghvendra Vishwakarma
Kirk J. McManus
author_facet Raghvendra Vishwakarma
Kirk J. McManus
author_sort Raghvendra Vishwakarma
collection DOAJ
description Chromosome instability (CIN) refers to an ongoing rate of chromosomal changes and is a driver of genetic, cell-to-cell heterogeneity. It is an aberrant phenotype that is intimately associated with cancer development and progression. The presence, extent, and level of CIN has tremendous implications for the clinical management and outcomes of those living with cancer. Despite its relevance in cancer, there is still extensive misuse of the term CIN, and this has adversely impacted our ability to identify and characterize the molecular determinants of CIN. Though several decades of genetic research have provided insight into CIN, the molecular determinants remain largely unknown, which severely limits its clinical potential. In this review, we provide a definition of CIN, describe the two main types, and discuss how it differs from aneuploidy. We subsequently detail its impact on cancer development and progression, and describe how it influences metastatic potential with reference to cancer prognosis and outcomes. Finally, we end with a discussion of how CIN induces genetic heterogeneity to influence the use and efficacy of several precision medicine strategies, including patient and risk stratification, as well as its impact on the acquisition of drug resistance and disease recurrence.
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spelling doaj.art-71848154082a4826b0dc436e544136f92023-11-16T14:36:38ZengMDPI AGCancers2072-66942020-03-0112482410.3390/cancers12040824Chromosome Instability; Implications in Cancer Development, Progression, and Clinical OutcomesRaghvendra Vishwakarma0Kirk J. McManus1Research Institute in Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB R3E 0V9, CanadaResearch Institute in Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB R3E 0V9, CanadaChromosome instability (CIN) refers to an ongoing rate of chromosomal changes and is a driver of genetic, cell-to-cell heterogeneity. It is an aberrant phenotype that is intimately associated with cancer development and progression. The presence, extent, and level of CIN has tremendous implications for the clinical management and outcomes of those living with cancer. Despite its relevance in cancer, there is still extensive misuse of the term CIN, and this has adversely impacted our ability to identify and characterize the molecular determinants of CIN. Though several decades of genetic research have provided insight into CIN, the molecular determinants remain largely unknown, which severely limits its clinical potential. In this review, we provide a definition of CIN, describe the two main types, and discuss how it differs from aneuploidy. We subsequently detail its impact on cancer development and progression, and describe how it influences metastatic potential with reference to cancer prognosis and outcomes. Finally, we end with a discussion of how CIN induces genetic heterogeneity to influence the use and efficacy of several precision medicine strategies, including patient and risk stratification, as well as its impact on the acquisition of drug resistance and disease recurrence.https://www.mdpi.com/2072-6694/12/4/824chromosome instabilitygenome instabilityaneuploidycancertumor heterogeneityprognosis
spellingShingle Raghvendra Vishwakarma
Kirk J. McManus
Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
Cancers
chromosome instability
genome instability
aneuploidy
cancer
tumor heterogeneity
prognosis
title Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
title_full Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
title_fullStr Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
title_full_unstemmed Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
title_short Chromosome Instability; Implications in Cancer Development, Progression, and Clinical Outcomes
title_sort chromosome instability implications in cancer development progression and clinical outcomes
topic chromosome instability
genome instability
aneuploidy
cancer
tumor heterogeneity
prognosis
url https://www.mdpi.com/2072-6694/12/4/824
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