Integrated functional, gene expression and genomic analysis for the identification of cancer targets.
The majority of new drug approvals for cancer are based on existing therapeutic targets. One approach to the identification of novel targets is to perform high-throughput RNA interference (RNAi) cellular viability screens. We describe a novel approach combining RNAi screening in multiple cell lines...
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2009-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0005120 |
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| _version_ | 1849687158447669248 |
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| author | Elizabeth Iorns Christopher J Lord Anita Grigoriadis Sarah McDonald Kerry Fenwick Alan Mackay Charles A Mein Rachael Natrajan Kay Savage Narinder Tamber Jorge S Reis-Filho Nicholas C Turner Alan Ashworth |
| author_facet | Elizabeth Iorns Christopher J Lord Anita Grigoriadis Sarah McDonald Kerry Fenwick Alan Mackay Charles A Mein Rachael Natrajan Kay Savage Narinder Tamber Jorge S Reis-Filho Nicholas C Turner Alan Ashworth |
| author_sort | Elizabeth Iorns |
| collection | DOAJ |
| description | The majority of new drug approvals for cancer are based on existing therapeutic targets. One approach to the identification of novel targets is to perform high-throughput RNA interference (RNAi) cellular viability screens. We describe a novel approach combining RNAi screening in multiple cell lines with gene expression and genomic profiling to identify novel cancer targets. We performed parallel RNAi screens in multiple cancer cell lines to identify genes that are essential for viability in some cell lines but not others, suggesting that these genes constitute key drivers of cellular survival in specific cancer cells. This approach was verified by the identification of PIK3CA, silencing of which was selectively lethal to the MCF7 cell line, which harbours an activating oncogenic PIK3CA mutation. We combined our functional RNAi approach with gene expression and genomic analysis, allowing the identification of several novel kinases, including WEE1, that are essential for viability only in cell lines that have an elevated level of expression of this kinase. Furthermore, we identified a subset of breast tumours that highly express WEE1 suggesting that WEE1 could be a novel therapeutic target in breast cancer. In conclusion, this strategy represents a novel and effective strategy for the identification of functionally important therapeutic targets in cancer. |
| format | Article |
| id | doaj-art-fe6d4e18e3ac4117937a53debf5472d2 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-fe6d4e18e3ac4117937a53debf5472d22025-08-20T03:22:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-01-0144e512010.1371/journal.pone.0005120Integrated functional, gene expression and genomic analysis for the identification of cancer targets.Elizabeth IornsChristopher J LordAnita GrigoriadisSarah McDonaldKerry FenwickAlan MackayCharles A MeinRachael NatrajanKay SavageNarinder TamberJorge S Reis-FilhoNicholas C TurnerAlan AshworthThe majority of new drug approvals for cancer are based on existing therapeutic targets. One approach to the identification of novel targets is to perform high-throughput RNA interference (RNAi) cellular viability screens. We describe a novel approach combining RNAi screening in multiple cell lines with gene expression and genomic profiling to identify novel cancer targets. We performed parallel RNAi screens in multiple cancer cell lines to identify genes that are essential for viability in some cell lines but not others, suggesting that these genes constitute key drivers of cellular survival in specific cancer cells. This approach was verified by the identification of PIK3CA, silencing of which was selectively lethal to the MCF7 cell line, which harbours an activating oncogenic PIK3CA mutation. We combined our functional RNAi approach with gene expression and genomic analysis, allowing the identification of several novel kinases, including WEE1, that are essential for viability only in cell lines that have an elevated level of expression of this kinase. Furthermore, we identified a subset of breast tumours that highly express WEE1 suggesting that WEE1 could be a novel therapeutic target in breast cancer. In conclusion, this strategy represents a novel and effective strategy for the identification of functionally important therapeutic targets in cancer.https://doi.org/10.1371/journal.pone.0005120 |
| spellingShingle | Elizabeth Iorns Christopher J Lord Anita Grigoriadis Sarah McDonald Kerry Fenwick Alan Mackay Charles A Mein Rachael Natrajan Kay Savage Narinder Tamber Jorge S Reis-Filho Nicholas C Turner Alan Ashworth Integrated functional, gene expression and genomic analysis for the identification of cancer targets. PLoS ONE |
| title | Integrated functional, gene expression and genomic analysis for the identification of cancer targets. |
| title_full | Integrated functional, gene expression and genomic analysis for the identification of cancer targets. |
| title_fullStr | Integrated functional, gene expression and genomic analysis for the identification of cancer targets. |
| title_full_unstemmed | Integrated functional, gene expression and genomic analysis for the identification of cancer targets. |
| title_short | Integrated functional, gene expression and genomic analysis for the identification of cancer targets. |
| title_sort | integrated functional gene expression and genomic analysis for the identification of cancer targets |
| url | https://doi.org/10.1371/journal.pone.0005120 |
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