Ontology highlight
ABSTRACT:
PROVIDER: PRJNA105951 | ENA |
REPOSITORIES: ENA
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Project description:The pathophysiology of endometriotic lesion development remains unclear but involves a complex interaction between ectopic endometrium and host peritoneal tissues. We hypothesised that disruption of this interaction was likely to suppress endometriotic lesion formation. We hoped to delineate the molecular and cellular dialogue between ectopic human endometrium and peritoneal tissues in nude mice, as a first step towards testing this hypothesis. Human endometrium was xenografted into nude mice and the resulting lesions were analysed using microarrays. A novel technique was developed that unambiguously determined whether RNA transcripts identified by the microarray analyses originated from human cells (endometrium) or mouse cells (stroma). Four key pathways (ubiquitin/proteosome, inflammation, tissue remodelling/repair and ras-mediated oncogenesis) were revealed, that demonstrated communication between host stromal cells and ectopic endometrium. Morphometric analysis of nude mouse lesions confirmed that necrosis, inflammation, healing and repair and cell proliferation occurred during xenograft development. These processes were entirely consistent with the molecular networks revealed by the microarray data. The transcripts detected in the xenografts overlapped with transcripts differentially expressed in a comparison between paired eutopic and ectopic endometrium from human endometriotic patients. For the first time components of the interaction between ectopic endometrium and peritoneal stromal tissues have been revealed in ectopic endometrial lesions. Targeted disruption of this dialogue is likely to disrupt endometriotic tissue formation and may prove to be an effective therapeutic strategy for endometriosis. Experiment Overall Design: Xenografts of human endometrium in nude mice hybridised to both human and mouse specific genechips. 2 biological replicates, at 3 time points. Control human endometrium and mouse pertioneum were hybridised to both human and mouse genechips
2009-01-02 | E-GEOD-11768 | biostudies-arrayexpress
Project description:The pathophysiology of endometriotic lesion development remains unclear but involves a complex interaction between ectopic endometrium and host peritoneal tissues. We hypothesised that disruption of this interaction was likely to suppress endometriotic lesion formation. We hoped to delineate the molecular and cellular dialogue between ectopic human endometrium and peritoneal tissues in nude mice, as a first step towards testing this hypothesis. Human endometrium was xenografted into nude mice and the resulting lesions were analysed using microarrays. A novel technique was developed that unambiguously determined whether RNA transcripts identified by the microarray analyses originated from human cells (endometrium) or mouse cells (stroma). Four key pathways (ubiquitin/proteosome, inflammation, tissue remodelling/repair and ras-mediated oncogenesis) were revealed, that demonstrated communication between host stromal cells and ectopic endometrium. Keywords: Disease state analysis
2008-12-22 | GSE11691 | GEO
Project description:The pathophysiology of endometriotic lesion development remains unclear but involves a complex interaction between ectopic endometrium and host peritoneal tissues. We hypothesised that disruption of this interaction was likely to suppress endometriotic lesion formation. We hoped to delineate the molecular and cellular dialogue between ectopic human endometrium and peritoneal tissues in nude mice, as a first step towards testing this hypothesis. Human endometrium was xenografted into nude mice and the resulting lesions were analysed using microarrays. A novel technique was developed that unambiguously determined whether RNA transcripts identified by the microarray analyses originated from human cells (endometrium) or mouse cells (stroma). Four key pathways (ubiquitin/proteosome, inflammation, tissue remodelling/repair and ras-mediated oncogenesis) were revealed, that demonstrated communication between host stromal cells and ectopic endometrium. Experiment Overall Design: Paired samples of eutopic and ectopic endometrium from 9 individual women were collected and the transcript profiles compared.
2009-01-02 | E-GEOD-11691 | biostudies-arrayexpress
Project description:The pathophysiology of endometriotic lesion development remains unclear but involves a complex interaction between ectopic endometrium and host peritoneal tissues. We hypothesised that disruption of this interaction was likely to suppress endometriotic lesion formation. We hoped to delineate the molecular and cellular dialogue between ectopic human endometrium and peritoneal tissues in nude mice, as a first step towards testing this hypothesis. Human endometrium was xenografted into nude mice and the resulting lesions were analysed using microarrays. A novel technique was developed that unambiguously determined whether RNA transcripts identified by the microarray analyses originated from human cells (endometrium) or mouse cells (stroma). Four key pathways (ubiquitin/proteosome, inflammation, tissue remodelling/repair and ras-mediated oncogenesis) were revealed, that demonstrated communication between host stromal cells and ectopic endometrium. Morphometric analysis of nude mouse lesions confirmed that necrosis, inflammation, healing and repair and cell proliferation occurred during xenograft development. These processes were entirely consistent with the molecular networks revealed by the microarray data. The transcripts detected in the xenografts overlapped with transcripts differentially expressed in a comparison between paired eutopic and ectopic endometrium from human endometriotic patients. For the first time components of the interaction between ectopic endometrium and peritoneal stromal tissues have been revealed in ectopic endometrial lesions. Targeted disruption of this dialogue is likely to disrupt endometriotic tissue formation and may prove to be an effective therapeutic strategy for endometriosis. Keywords: time course, disease state analysis.
2008-12-22 | GSE11768 | GEO
Project description:This SuperSeries is composed of the following subset Series:; GSE11691: Euctopic and ectopic human endometrium (endometriosis); GSE11768: Nude mouse model of endometriosis Experiment Overall Design: Refer to individual Series
2009-01-02 | E-GEOD-11769 | biostudies-arrayexpress
Project description:We performed gene expression analysis human peritoneal endometriosis lesions, eutopic endometrium from endometriosis patients and peritoneum form endometriosis patients.The goal of the study was to analyse gene expression differences between peritoneal endometriosis lesion and eutopic endometrium and peritoneal endometriosis lesion and peritoneum.
2012-12-06 | E-MTAB-694 | biostudies-arrayexpress
Project description:Euctopic and ectopic human endometrium (endometriosis)
| PRJNA109165 | ENA
Project description:Brief description of the experiment: The objective of this experiment was to use DNA microarrays to identify differentially expressed genes in eutopic uterine endometrium compared to ectopic endometrium. 174 of the 53,000 genes on the whole human DNA microarrays were changed by 5-fold or greater in ectopic vs. eutopic endometrium. Families of genes that were differentially expressed include immune system and inflammatory pathway genes, genes whose cognate proteins code for cell adhesion, junctional proteins, the extracellular matrix and its remodeling, and cytoskeletal proteins, and ligands, receptors, and components of specific signal transduction pathways. The altered immune environment may allow survival of endometriotic cells that enter the peritoneal cavity. Alterations of cell adhesion-associated genes may contribute to the adhesive and invasive properties of ectopic endometrium, and changes in signal transduction pathways support a change in the communication among cells of the endometrial explant compared to eutopic endometrium. These families of differentially expressed genes provide multiple opportunities for the development and testing of new hypotheses regarding endometriosis. Keywords: disease state analysis, endometriosis
2007-02-15 | GSE5108 | GEO
Project description:Endometriosis is a common gynecological disease of women in reproductive age, and is primarily thought to arise from retrograde menstruation and implantation of endometrium, mostly into the peritoneal cavity. The condition is characterized by a chronic, unresolved inflammatory process, within which oxidative stress likely plays a critical role. Although elevated reactive oxygen species (ROS) and oxidative stress have previously been postulated as being involved in endometriosis pathogenesis, we set out for a more systematic study to identify novel factors defining oxidative stress in ectopic peritoneal lesions. Using combined proteomic and transcriptomic approaches, we identified novel targets, including upregulated pro-oxidative enzymes such as amine oxidase 3/vascular adhesion protein 1 (AOC3/VAP1), as well as downregulated protective factors such as alkenal reductase PTGR1 or methionine sulfoxide reductase, supporting the observation of increased oxidative protein modification in ectopic lesions and peritoneal fluid. The observed ROS-derived 4-hydroxy-2-nonenal-induced interleukin (IL)-8 release from monocytes indicates a further pathomechanism, whereby elevated IL-8 levels promote further immune cell infiltration and angiogenesis in lesions.
2020-05-26 | PXD006553 | Pride
Project description:Adenomyosis, defined as ectopic endometrial tissue within the myometrium, can often be misdiagnosed as multiple uterine leiomyomata or endometrial thickening. We therefore performed a combined mRNA and long noncoding (lnc)RNA microarray and bioinformatic analysis of eutopic and ectopic endometrium in women with adenomyosis to better understand its pathogenesis and help in the development of a semi-invasive diagnostic test. A total of 586 mRNAs were increased and 305 mRNAs decreased in ectopic endometrium of adenomyosis compared with eutopic endometrium, while 388 lncRNA transcripts were up-regulated and 188 down-regulated in ectopic compared with paired eutopic endometrial tissue. Bioinformatic analysis suggested a series of metabolic and molecular abnormalities in adenomyosis, which have many similarities with endometriosis. Furthermore, our study constitutes the first known report of lncRNA expression patterns in human adenomyosis ectopic and eutopic endometrial tissue. Two-condition experiment, ectopic endometrium vs. eutopic endometrium. 3 samples,self-control
2015-10-28 | E-GEOD-74373 | biostudies-arrayexpress