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CTen: a web-based platform for identifying enriched cell types from heterogeneous microarray data.


ABSTRACT:

Background

Interpreting in vivo sampled microarray data is often complicated by changes in the cell population demographics. To put gene expression into its proper biological context, it is necessary to distinguish differential gene transcription from artificial gene expression induced by changes in the cellular demographics.

Results

CTen (cell type enrichment) is a web-based analytical tool which uses our highly expressed, cell specific (HECS) gene database to identify enriched cell types in heterogeneous microarray data. The web interface is designed for differential expression and gene clustering studies, and the enrichment results are presented as heatmaps or downloadable text files.

Conclusions

In this work, we use an independent, cell-specific gene expression data set to assess CTen's performance in accurately identifying the appropriate cell type and provide insight into the suggested level of enrichment to optimally minimize the number of false discoveries. We show that CTen, when applied to microarray data developed from infected lung tissue, can correctly identify the cell signatures of key lymphocytes in a highly heterogeneous environment and compare its performance to another popular bioinformatics tool. Furthermore, we discuss the strong implications cell type enrichment has in the design of effective microarray workflow strategies and show that, by combining CTen with gene expression clustering, we may be able to determine the relative changes in the number of key cell types.CTen is available at http://www.influenza-x.org/~jshoemaker/cten/

SUBMITTER: Shoemaker JE 

PROVIDER: S-EPMC3473317 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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CTen: a web-based platform for identifying enriched cell types from heterogeneous microarray data.

Shoemaker Jason E JE   Lopes Tiago J S TJ   Ghosh Samik S   Matsuoka Yukiko Y   Kawaoka Yoshihiro Y   Kitano Hiroaki H  

BMC genomics 20120906


<h4>Background</h4>Interpreting in vivo sampled microarray data is often complicated by changes in the cell population demographics. To put gene expression into its proper biological context, it is necessary to distinguish differential gene transcription from artificial gene expression induced by changes in the cellular demographics.<h4>Results</h4>CTen (cell type enrichment) is a web-based analytical tool which uses our highly expressed, cell specific (HECS) gene database to identify enriched c  ...[more]

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