Predicting the clinical status of human breast cancer by using gene expression profiles.

Journal Article (Journal Article)

Prognostic and predictive factors are indispensable tools in the treatment of patients with neoplastic disease. For the most part, such factors rely on a few specific cell surface, histological, or gross pathologic features. Gene expression assays have the potential to supplement what were previously a few distinct features with many thousands of features. We have developed Bayesian regression models that provide predictive capability based on gene expression data derived from DNA microarray analysis of a series of primary breast cancer samples. These patterns have the capacity to discriminate breast tumors on the basis of estrogen receptor status and also on the categorized lymph node status. Importantly, we assess the utility and validity of such models in predicting the status of tumors in crossvalidation determinations. The practical value of such approaches relies on the ability not only to assess relative probabilities of clinical outcomes for future samples but also to provide an honest assessment of the uncertainties associated with such predictive classifications on the basis of the selection of gene subsets for each validation analysis. This latter point is of critical importance in the ability to apply these methodologies to clinical assessment of tumor phenotype.

Full Text

Duke Authors

Cited Authors

  • West, M; Blanchette, C; Dressman, H; Huang, E; Ishida, S; Spang, R; Zuzan, H; Olson, JA; Marks, JR; Nevins, JR

Published Date

  • September 25, 2001

Published In

Volume / Issue

  • 98 / 20

Start / End Page

  • 11462 - 11467

PubMed ID

  • 11562467

Pubmed Central ID

  • PMC58752

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.201162998


  • eng

Conference Location

  • United States