General nonlinear framework for the analysis of gene interaction via multivariate expression arrays

Seungchan Kim, Edward R. Dougherty, Michael L. Bittner, Yidong Chen, Krishnamoorthy Sivakumar, Paul Meltzer, Jeffrey M. Trent

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


A cDNA microarray is a complex biochemical-optical system whose purpose is the simultaneous measurement of gene expression for thousands of genes. In this paper we propose a general statistical approach to finding associations between the expression patterns of genes via the coefficient of determination. This coefficient measures the degree to which the transcriptional levels of an observed gene set can be used to improve the prediction of the transcriptional state of a target gene relative to the best possible prediction in the absence of observations. The method allows incorporation of knowledge of other conditions relevant to the prediction, such as the application of particular stimuli or the presence of inactivating gene mutations, as predictive elements affecting the expression level of a given gene. Various aspects of the method are discussed: prediction quantification, unconstrained prediction, constrained prediction using ternary perceptrons, and design of predictors given small numbers of replicated microarrays. The method is applied to a set of genes undergoing genotoxic stress for validation according to the manner in which it points toward previously known and unknown relationships. The entire procedure is supported by software that can be applied to large gene sets, has a number of facilities to simply data analysis, and provides graphics for visualizing experimental data, multiple gene interaction, and prediction logic.

Original languageEnglish (US)
Pages (from-to)411-424
Number of pages14
JournalJournal of biomedical optics
Issue number4
StatePublished - Oct 2000
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering


Dive into the research topics of 'General nonlinear framework for the analysis of gene interaction via multivariate expression arrays'. Together they form a unique fingerprint.

Cite this