DNA microarray analysis of gene expression in eutopic endometrium from patients with deep endometriosis using laser capture microdissection

Sachiko Matsuzaki, Matsuzaki S, Michel Canis, Catherine Vaurs‐Barrière, Catherine Vaurs-Barrière, Odile Boespflug-Tanguy, Odile Boespflug‐Tanguy, B. Dastugue, Bernard Dastugue, Dastugue B, Mage G, G. Mage, Gérard Mage
Fertility and sterility · 2005 · vol. 84 , pp. 1180–1190 · doi:10.1016/j.fertnstert.2005.04.041 · PMID:16210010 · W1973676214
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This study used DNA microarrays and laser capture microdissection to analyze gene expression patterns in eutopic endometrium from patients with deep endometriosis.

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Abstract

ObjectiveTo investigate differentially expressed genes in epithelial and stromal cells of eutopic endometrium from patients with deep endometriosis and women with normal pelvic cavities using laser capture microdissection and complementary DNA microarrays.DesignProspective study.SettingUniversity hospital.Patient(s)Patients with deep endometriosis and fertile women who underwent laparoscopic tubal ligation or reversal of tubal sterilization.Intervention(s)Endometrial tissue biopsies during the late proliferative phase and early, mid-, and late secretory phases.Main outcome measure(s)Genes that were regulated with a change greater than threefold were selected as differentially expressed genes. Validation was performed with real-time reverse transcriptase-polymerase chain reaction (RT-PCR).Result(s)Microarray analysis identified up-regulation during the late secretory phase (patients with endometriosis vs. controls) of several genes in two important signaling pathways: RAS/RAF/MAPK and PI3K. This included the genes RON, SOS, 14-3-3 protein eta, and uPAR in epithelial cells and KSR and PI3K p85 regulatory subunit alpha in stromal cells; real-time RT-PCR analysis validated up-regulation of all six genes.Conclusion(s)The RAS/RAF/MAPK and PI3K pathways may be involved in initial development of endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometrium Gene Expression Profiling Lasers Microdissection Oligonucleotide Array Sequence Analysis Endometriosis Endometriosis Endometriosis Endometrium Endometrium Female Gene Expression Profiling Humans Microdissection Oligonucleotide Array Sequence Analysis Prospective Studies Statistics, Nonparametric

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