Journal ArticleDOI
Gene-Expression Profiles in Hereditary Breast Cancer
Ingrid Hedenfalk,David Duggan,Yi Chen,Michael D. Radmacher,M. Bittner,Richard M. Simon,P. Meltzer,Barry A. Gusterson,Manel Esteller,O. P. Kallioniemi,Benjamin S. Wilfond,Åke Borg,J.M. Trent,Mark Raffeld,Zohar Yakhini,Amir Ben-Dor,Edward R. Dougherty,Juha Kononen,Lukas Bubendorf,W Fehrle,Stefania Pittaluga,Sofia Gruvberger,Niklas Loman,Oskar T. Johannsson,Håkan Olsson,Guido Sauter +25 more
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TLDR
Significantly different groups of genes are expressed by breast cancers with BRCA1 mutations and breast cancersWith BRCa2 mutations, the results suggest that a heritable mutation influences the gene-expression profile of the cancer.Abstract:
Background Many cases of hereditary breast cancer are due to mutations in either the BRCA1 or the BRCA2 gene. The histopathological changes in these cancers are often characteristic of the mutant gene. We hypothesized that the genes expressed by these two types of tumors are also distinctive, perhaps allowing us to identify cases of hereditary breast cancer on the basis of gene-expression profiles. Methods RNA from samples of primary tumors from seven carriers of the BRCA1 mutation, seven carriers of the BRCA2 mutation, and seven patients with sporadic cases of breast cancer was compared with a microarray of 6512 complementary DNA clones of 5361 genes. Statistical analyses were used to identify a set of genes that could distinguish the BRCA1 genotype from the BRCA2 genotype. Results Permutation analysis of multivariate classification functions established that the gene-expression profiles of tumors with BRCA1 mutations, tumors with BRCA2 mutations, and sporadic tumors differed significantly from each othe...read more
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Gene expression patterns of breast carcinomas distinguish tumor subclasses with clinical implications
Therese Sørlie,Charles M. Perou,Robert Tibshirani,Turid Aas,Stephanie Geisler,Hilde Johnsen,Trevor Hastie,Michael B. Eisen,Matt van de Rijn,Stefanie S. Jeffrey,T. Thorsen,Hanne Quist,John C. Matese,Patrick O. Brown,David Botstein,Per Eystein Lønning,Anne Lise Børresen-Dale +16 more
TL;DR: Survival analyses on a subcohort of patients with locally advanced breast cancer uniformly treated in a prospective study showed significantly different outcomes for the patients belonging to the various groups, including a poor prognosis for the basal-like subtype and a significant difference in outcome for the two estrogen receptor-positive groups.
Journal ArticleDOI
Gene expression profiling predicts clinical outcome of breast cancer
Laura J. van't Veer,Hongyue Dai,Marc J. van de Vijver,Yudong D. He,Augustinus A. M. Hart,Mao Mao,Hans Peterse,Karin van der Kooy,Matthew J. Marton,Anke T. Witteveen,George J. Schreiber,Ron M. Kerkhoven,Christopher J. Roberts,Peter S. Linsley,René Bernards,Stephen H. Friend +15 more
TL;DR: DNA microarray analysis on primary breast tumours of 117 young patients is used and supervised classification is applied to identify a gene expression signature strongly predictive of a short interval to distant metastases (‘poor prognosis’ signature) in patients without tumour cells in local lymph nodes at diagnosis, providing a strategy to select patients who would benefit from adjuvant therapy.
Journal ArticleDOI
Statistical significance for genomewide studies
John D. Storey,Robert Tibshirani +1 more
TL;DR: This work proposes an approach to measuring statistical significance in genomewide studies based on the concept of the false discovery rate, which offers a sensible balance between the number of true and false positives that is automatically calibrated and easily interpreted.
Journal ArticleDOI
A Gene-Expression Signature as a Predictor of Survival in Breast Cancer
Marc J. van de Vijver,Yudong D. He,Laura J. van't Veer,Hongyue Dai,Augustinus A. M. Hart,D.W. Voskuil,George J. Schreiber,Johannes L. Peterse,Christopher J. Roberts,Matthew J. Marton,Mark Parrish,Douwe Atsma,Anke T. Witteveen,Annuska M. Glas,Leonie J. M. J. Delahaye,Tony van de Velde,Harry Bartelink,Sjoerd Rodenhuis,Emiel J. Th. Rutgers,Stephen H. Friend,René Bernards +20 more
TL;DR: The gene-expression profile studied is a more powerful predictor of the outcome of disease in young patients with breast cancer than standard systems based on clinical and histologic criteria.
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The fundamental role of epigenetic events in cancer
Peter A. Jones,Stephen B. Baylin +1 more
TL;DR: This review discusses patterns of DNA methylation and chromatin structure in neoplasia and the molecular alterations that might cause them and/or underlie altered gene expression in cancer.
References
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Juha Kononen,Lukas Bubendorf,Anne Kallioniemi,Maarit Bärlund,Peter Schraml,S Leighton,Joachim Torhorst,Michael J. Mihatsch,Guido Sauter,Olli Kallioniemi +9 more
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Journal ArticleDOI
Identification of the breast cancer susceptibility gene BRCA2
Richard Wooster,Graham R. Bignell,Johnathan M. Lancaster,Sally Swift,Sheila Seal,Jonathon Mangion,N. Collins,Simon G. Gregory,Curtis Gumbs,Gos Micklem +9 more
TL;DR: The identification of a gene in which six different germline mutations in breast cancer families that are likely to be due to BRCA2 are detected, and results indicate that this is the BRC a2 gene.
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