A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells.
The ability to survive stressful conditions is important for every living cell. Certain stresses not only affect the current well-being of cells but may also have far-reaching consequences. Uncurbed oxidative stress can cause DNA damage and decrease cell survival and/or increase mutation rates, and...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2015-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0120702 |
| _version_ | 1818920562972426240 |
|---|---|
| author | Kamil Krol Izabela Brozda Marek Skoneczny Maria Bretner Adrianna Skoneczna |
| author_facet | Kamil Krol Izabela Brozda Marek Skoneczny Maria Bretner Adrianna Skoneczna |
| author_sort | Kamil Krol |
| collection | DOAJ |
| description | The ability to survive stressful conditions is important for every living cell. Certain stresses not only affect the current well-being of cells but may also have far-reaching consequences. Uncurbed oxidative stress can cause DNA damage and decrease cell survival and/or increase mutation rates, and certain substances that generate oxidative damage in the cell mainly act on DNA. Radiomimetic zeocin causes oxidative damage in DNA, predominantly by inducing single- or double-strand breaks. Such lesions can lead to chromosomal rearrangements, especially in diploid cells, in which the two sets of chromosomes facilitate excessive and deleterious recombination. In a global screen for zeocin-oversensitive mutants, we selected 133 genes whose deletion reduces the survival of zeocin-treated diploid Saccharomyces cerevisiae cells. The screen revealed numerous genes associated with stress responses, DNA repair genes, cell cycle progression genes, and chromatin remodeling genes. Notably, the screen also demonstrated the involvement of the vesicular trafficking system in cellular protection against DNA damage. The analyses indicated the importance of vesicular system integrity in various pathways of cellular protection from zeocin-dependent damage, including detoxification and a direct or transitional role in genome maintenance processes that remains unclear. The data showed that deleting genes involved in vesicular trafficking may lead to Rad52 focus accumulation and changes in total DNA content or even cell ploidy alterations, and such deletions may preclude proper DNA repair after zeocin treatment. We postulate that functional vesicular transport is crucial for sustaining an integral genome. We believe that the identification of numerous new genes implicated in genome restoration after genotoxic oxidative stress combined with the detected link between vesicular trafficking and genome integrity will reveal novel molecular processes involved in genome stability in diploid cells. |
| first_indexed | 2024-12-20T01:23:44Z |
| format | Article |
| id | doaj.art-639a56f954f14923a57a4a311c8cf2aa |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-20T01:23:44Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-639a56f954f14923a57a4a311c8cf2aa2022-12-21T19:58:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01103e012070210.1371/journal.pone.0120702A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells.Kamil KrolIzabela BrozdaMarek SkonecznyMaria BretnerAdrianna SkonecznaThe ability to survive stressful conditions is important for every living cell. Certain stresses not only affect the current well-being of cells but may also have far-reaching consequences. Uncurbed oxidative stress can cause DNA damage and decrease cell survival and/or increase mutation rates, and certain substances that generate oxidative damage in the cell mainly act on DNA. Radiomimetic zeocin causes oxidative damage in DNA, predominantly by inducing single- or double-strand breaks. Such lesions can lead to chromosomal rearrangements, especially in diploid cells, in which the two sets of chromosomes facilitate excessive and deleterious recombination. In a global screen for zeocin-oversensitive mutants, we selected 133 genes whose deletion reduces the survival of zeocin-treated diploid Saccharomyces cerevisiae cells. The screen revealed numerous genes associated with stress responses, DNA repair genes, cell cycle progression genes, and chromatin remodeling genes. Notably, the screen also demonstrated the involvement of the vesicular trafficking system in cellular protection against DNA damage. The analyses indicated the importance of vesicular system integrity in various pathways of cellular protection from zeocin-dependent damage, including detoxification and a direct or transitional role in genome maintenance processes that remains unclear. The data showed that deleting genes involved in vesicular trafficking may lead to Rad52 focus accumulation and changes in total DNA content or even cell ploidy alterations, and such deletions may preclude proper DNA repair after zeocin treatment. We postulate that functional vesicular transport is crucial for sustaining an integral genome. We believe that the identification of numerous new genes implicated in genome restoration after genotoxic oxidative stress combined with the detected link between vesicular trafficking and genome integrity will reveal novel molecular processes involved in genome stability in diploid cells.https://doi.org/10.1371/journal.pone.0120702 |
| spellingShingle | Kamil Krol Izabela Brozda Marek Skoneczny Maria Bretner Adrianna Skoneczna A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. PLoS ONE |
| title | A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. |
| title_full | A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. |
| title_fullStr | A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. |
| title_full_unstemmed | A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. |
| title_short | A genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid Saccharomyces cerevisiae cells. |
| title_sort | genomic screen revealing the importance of vesicular trafficking pathways in genome maintenance and protection against genotoxic stress in diploid saccharomyces cerevisiae cells |
| url | https://doi.org/10.1371/journal.pone.0120702 |
| work_keys_str_mv | AT kamilkrol agenomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT izabelabrozda agenomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT marekskoneczny agenomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT mariabretner agenomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT adriannaskoneczna agenomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT kamilkrol genomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT izabelabrozda genomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT marekskoneczny genomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT mariabretner genomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells AT adriannaskoneczna genomicscreenrevealingtheimportanceofvesiculartraffickingpathwaysingenomemaintenanceandprotectionagainstgenotoxicstressindiploidsaccharomycescerevisiaecells |