Aneuploidy and improved growth are coincident but not causal in a yeast cancer model.
Cancer cells have acquired mutations that alter their growth. Aneuploidy that typify cancer cells are often assumed to contribute to the abnormal growth characteristics. Here we test the idea of a link between aneuploidy and mutations allowing improved growth, using Saccharomyces cerevisiae containi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2009-07-01
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| Series: | PLoS Biology |
| Online Access: | http://europepmc.org/articles/PMC2708349?pdf=render |
| _version_ | 1819008399641149440 |
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| author | Xin Chenglin Li John C Schimenti Bik K Tye |
| author_facet | Xin Chenglin Li John C Schimenti Bik K Tye |
| author_sort | Xin Chenglin Li |
| collection | DOAJ |
| description | Cancer cells have acquired mutations that alter their growth. Aneuploidy that typify cancer cells are often assumed to contribute to the abnormal growth characteristics. Here we test the idea of a link between aneuploidy and mutations allowing improved growth, using Saccharomyces cerevisiae containing a mcm4 helicase allele that was shown to cause cancer in mice. Yeast bearing this mcm4 allele are prone to undergoing a "hypermutable phase" characterized by a changing karyotype, ultimately yielding progeny with improved growth properties. When such progeny are returned to a normal karyotype by mating, their improved growth remains. Genetic analysis shows their improved growth is due to mutations in just a few loci. In sum, the effects of the mcm4 allele in mice are recapitulated in yeast, and the aneuploidy is not required to maintain improved growth. |
| first_indexed | 2024-12-21T00:39:52Z |
| format | Article |
| id | doaj.art-43114458fe0042679fe00cb33af228eb |
| institution | Directory Open Access Journal |
| issn | 1544-9173 1545-7885 |
| language | English |
| last_indexed | 2024-12-21T00:39:52Z |
| publishDate | 2009-07-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Biology |
| spelling | doaj.art-43114458fe0042679fe00cb33af228eb2022-12-21T19:21:43ZengPublic Library of Science (PLoS)PLoS Biology1544-91731545-78852009-07-0177e100016110.1371/journal.pbio.1000161Aneuploidy and improved growth are coincident but not causal in a yeast cancer model.Xin Chenglin LiJohn C SchimentiBik K TyeCancer cells have acquired mutations that alter their growth. Aneuploidy that typify cancer cells are often assumed to contribute to the abnormal growth characteristics. Here we test the idea of a link between aneuploidy and mutations allowing improved growth, using Saccharomyces cerevisiae containing a mcm4 helicase allele that was shown to cause cancer in mice. Yeast bearing this mcm4 allele are prone to undergoing a "hypermutable phase" characterized by a changing karyotype, ultimately yielding progeny with improved growth properties. When such progeny are returned to a normal karyotype by mating, their improved growth remains. Genetic analysis shows their improved growth is due to mutations in just a few loci. In sum, the effects of the mcm4 allele in mice are recapitulated in yeast, and the aneuploidy is not required to maintain improved growth.http://europepmc.org/articles/PMC2708349?pdf=render |
| spellingShingle | Xin Chenglin Li John C Schimenti Bik K Tye Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. PLoS Biology |
| title | Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. |
| title_full | Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. |
| title_fullStr | Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. |
| title_full_unstemmed | Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. |
| title_short | Aneuploidy and improved growth are coincident but not causal in a yeast cancer model. |
| title_sort | aneuploidy and improved growth are coincident but not causal in a yeast cancer model |
| url | http://europepmc.org/articles/PMC2708349?pdf=render |
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