Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
25
pubmed:dateCreated
2010-6-23
pubmed:abstractText
Glioblastoma multiforme (GBM) is a fatal primary brain tumor harboring myriad genetic and epigenetic alterations. The recent multidimensional analysis of the GBM genome has provided a more complete view of the landscape of such alterations and their linked pathways. This effort has demonstrated that certain pathways are universally altered, but that the specific genetic events altered within each pathway can vary for each particular patient's tumor. With this atlas of genetic and epigenetic events, it now becomes feasible to assess how the patterns of mutations in a pathway influence response to drugs that are targeting such pathways. This issue is particularly important for GBM because, in contrast to other tumor types, molecularly targeted therapies have failed to alter overall survival substantially. Here, we combined functional genetic screens and comprehensive genomic analyses to identify CDK6 as a GBM oncogene that is required for proliferation and viability in a subset of GBM cell lines and tumors. Using an available small molecule targeting cyclin-dependent kinases (CDKs) 4 and 6, we sought to determine if the specific pattern of retinoblastoma pathway inactivation dictated the response to CDK4/6 inhibitor therapy. We showed that codeletion of CDKN2A and CDKN2C serves as a strong predictor of sensitivity to a selective inhibitor of CDK4/6. Thus, genome-informed drug sensitivity studies identify a subset of GBMs likely to respond to CDK4/6 inhibition. More generally, these observations demonstrate that the integration of genomic, functional and pharmacologic data can be exploited to inform the development of targeted therapy directed against specific cancer pathways.
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/6-acetyl-8-cyclopentyl-5-methyl-2-(5..., http://linkedlifedata.com/resource/pubmed/chemical/CDK4 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/CDK6 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/CDKN2C protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 4, http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 6, http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase Inhibitor..., http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors, http://linkedlifedata.com/resource/pubmed/chemical/Piperazines, http://linkedlifedata.com/resource/pubmed/chemical/Pyridines, http://linkedlifedata.com/resource/pubmed/chemical/Retinoblastoma Protein
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1091-6490
pubmed:author
pubmed:issnType
Electronic
pubmed:day
22
pubmed:volume
107
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
11501-6
pubmed:dateRevised
2010-9-30
pubmed:meshHeading
pubmed-meshheading:20534551-Animals, pubmed-meshheading:20534551-Cell Line, Tumor, pubmed-meshheading:20534551-Cell Proliferation, pubmed-meshheading:20534551-Central Nervous System Neoplasms, pubmed-meshheading:20534551-Cyclin-Dependent Kinase 4, pubmed-meshheading:20534551-Cyclin-Dependent Kinase 6, pubmed-meshheading:20534551-Cyclin-Dependent Kinase Inhibitor p18, pubmed-meshheading:20534551-Dose-Response Relationship, Drug, pubmed-meshheading:20534551-Enzyme Inhibitors, pubmed-meshheading:20534551-Epigenesis, Genetic, pubmed-meshheading:20534551-Gene Expression Regulation, Neoplastic, pubmed-meshheading:20534551-Glioblastoma, pubmed-meshheading:20534551-Humans, pubmed-meshheading:20534551-Inhibitory Concentration 50, pubmed-meshheading:20534551-Mice, pubmed-meshheading:20534551-Neoplasm Transplantation, pubmed-meshheading:20534551-Piperazines, pubmed-meshheading:20534551-Pyridines, pubmed-meshheading:20534551-Retinoblastoma Protein
pubmed:year
2010
pubmed:articleTitle
Pattern of retinoblastoma pathway inactivation dictates response to CDK4/6 inhibition in GBM.
pubmed:affiliation
Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02115, USA.
pubmed:publicationType
Journal Article