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Transcriptional consequences of aneuploidy

Sheltzer, J. M., Torres, Eduardo Miguel, Dunham, M. J. and Amon, A. 2012. Transcriptional consequences of aneuploidy. Proceedings of the National Academy of Sciences of the United States of America 109 (31) , pp. 12644-12649. 10.1073/pnas.1209227109

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Abstract

Aneuploidy, or an aberrant karyotype, results in developmental disabilities and has been implicated in tumorigenesis. However, the causes of aneuploidy-induced phenotypes and the consequences of aneuploidy on cell physiology remain poorly understood. We have performed a metaanalysis on gene expression data from aneuploid cells in diverse organisms, including yeast, plants, mice, and humans. We found highly related gene expression patterns that are conserved between species: genes that were involved in the response to stress were consistently upregulated, and genes associated with the cell cycle and cell proliferation were downregulated in aneuploid cells. Within species, different aneuploidies induced similar changes in gene expression, independent of the specific chromosomal aberrations. Taken together, our results demonstrate that aneuploidies of different chromosomes and in different organisms impact similar cellular pathways and cause a stereotypical antiproliferative response that must be overcome before transformation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: National Academy of Sciences
ISSN: 0027-8424
Last Modified: 23 Mar 2017 05:07
URI: https://orca.cardiff.ac.uk/id/eprint/66762

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