Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models

<p>Abstract</p> <p>Background</p> <p>Mouse xenograft models, in which human cancer cells are implanted in immune-suppressed mice, have been popular for studying the mechanisms of novel therapeutic targets, tumor progression and metastasis. We hypothesized that we could...

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Main Authors: Chen James L, Huang Yong, Lee Younghee, Yang Xinan, Xing Rosie H, Lussier Yves A
Format: Article
Language:English
Published: BMC 2010-10-01
Series:BMC Bioinformatics
Online Access:http://www.biomedcentral.com/1471-2105/11/S9/S11
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author Chen James L
Huang Yong
Lee Younghee
Yang Xinan
Xing Rosie H
Lussier Yves A
author_facet Chen James L
Huang Yong
Lee Younghee
Yang Xinan
Xing Rosie H
Lussier Yves A
author_sort Chen James L
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Mouse xenograft models, in which human cancer cells are implanted in immune-suppressed mice, have been popular for studying the mechanisms of novel therapeutic targets, tumor progression and metastasis. We hypothesized that we could exploit the interspecies genetic differences in these experiments. Our purpose is to elucidate stromal microenvironment signals from probes on human arrays unintentionally cross-hybridizing with mouse homologous genes in xenograft tumor models.</p> <p>Results</p> <p>By identifying cross-species hybridizing probes from sequence alignment and cross-species hybridization experiment for the human whole-genome arrays, deregulated stromal genes can be identified and then their biological significance were predicted from enrichment studies. Comparing these results with those found by the laser capture microdissection of stromal cells from tumor specimens resulted in the discovery of significantly enriched stromal biological processes.</p> <p>Conclusions</p> <p>Using this method, in addition to their primary endpoints, researchers can leverage xenograft experiments to better characterize the tumor microenvironment without additional costs. The Xhyb probes and R script are available at <url>http://www.lussierlab.org/publications/Stroma</url></p>
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spelling doaj.art-f375e052cfa0433fa3b792ce13e61e6e2022-12-21T18:49:04ZengBMCBMC Bioinformatics1471-21052010-10-0111Suppl 9S1110.1186/1471-2105-11-S9-S11Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor modelsChen James LHuang YongLee YoungheeYang XinanXing Rosie HLussier Yves A<p>Abstract</p> <p>Background</p> <p>Mouse xenograft models, in which human cancer cells are implanted in immune-suppressed mice, have been popular for studying the mechanisms of novel therapeutic targets, tumor progression and metastasis. We hypothesized that we could exploit the interspecies genetic differences in these experiments. Our purpose is to elucidate stromal microenvironment signals from probes on human arrays unintentionally cross-hybridizing with mouse homologous genes in xenograft tumor models.</p> <p>Results</p> <p>By identifying cross-species hybridizing probes from sequence alignment and cross-species hybridization experiment for the human whole-genome arrays, deregulated stromal genes can be identified and then their biological significance were predicted from enrichment studies. Comparing these results with those found by the laser capture microdissection of stromal cells from tumor specimens resulted in the discovery of significantly enriched stromal biological processes.</p> <p>Conclusions</p> <p>Using this method, in addition to their primary endpoints, researchers can leverage xenograft experiments to better characterize the tumor microenvironment without additional costs. The Xhyb probes and R script are available at <url>http://www.lussierlab.org/publications/Stroma</url></p>http://www.biomedcentral.com/1471-2105/11/S9/S11
spellingShingle Chen James L
Huang Yong
Lee Younghee
Yang Xinan
Xing Rosie H
Lussier Yves A
Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
BMC Bioinformatics
title Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
title_full Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
title_fullStr Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
title_full_unstemmed Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
title_short Stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
title_sort stromal microenvironment processes unveiled by biological component analysis of gene expression in xenograft tumor models
url http://www.biomedcentral.com/1471-2105/11/S9/S11
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