Identification of chromothripsis in biopsy using SNP-based microarray

Veronica Ortega, Christina Mendiola, Gopalrao V Velagaleti

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

One of the well-known hallmarks of cancer is genomic instability. Although gradualism is a well-established process of cancer evolution, recent studies have shown that chromothripsis or chromoanasynthesis can result in complex genomic rearrangements by a single catastrophic event rather than several incremental steps. These two novel phenomena suggest an evolutionary modality for cancer cells to circumvent individual mutational events with one simultaneous shattering of chromosomes or chromosome regions resulting in the random reassembling of shattered genetic material to form complex derivative chromosomes. Although sequencing methods are ideal for the detection of chromothripsis, single-nucleotide polymorphism (SNP)-based microarray methods are also useful in detecting chromothripsis in biopsy samples. Issues related to sample collection, storage, and transport, especially with tumor biopsies, may limit the options for sequencing studies, and in such cases, SNP-based microarray may be a viable alternative for detecting chromothripsis.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press
Pages85-117
Number of pages33
DOIs
StatePublished - Jan 1 2018

Publication series

NameMethods in Molecular Biology
Volume1769
ISSN (Print)1064-3745

Keywords

  • Biopsy
  • Cancer
  • Chromothripsis
  • Copy number variants (CNVs)
  • DNA
  • SNP microarray

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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  • Cite this

    Ortega, V., Mendiola, C., & Velagaleti, G. V. (2018). Identification of chromothripsis in biopsy using SNP-based microarray. In Methods in Molecular Biology (pp. 85-117). (Methods in Molecular Biology; Vol. 1769). Humana Press. https://doi.org/10.1007/978-1-4939-7780-2_7