GWAS and tissue transcriptomics identify embryonic drivers for classic bladder exstrophy and provide clues to the associated susceptibility to bladder cancer
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE190641 | GEO | 2022/09/30
REPOSITORIES: GEO
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Project description:GWAS and tissue transcriptomics identify embryonic drivers for classic bladder exstrophy and provide clues to the associated susceptibility to bladder cancer
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Project description:Urogenital schistosomiasis (caused by Schistosoma haematobium) remains a major public health concern worldwide. In response to parasite egg deposition, the host bladder undergoes gross and molecular morphological changes relevant for disease manifestation. However, limited mechanistic studies to date imply that the molecular mechanisms underlying pathology have not been well-defined. We leveraged a mouse model of urogenital schistosomiasis to perform for the first time, proteome profiling of the early molecular events that occur in the bladder after exposure to S. haematobium eggs, and to elucidate the protein pathways involved in urogenital schistosomiasis-induced pathology. Purified S. haematobium eggs or control vehicle were microinjected into the bladder walls of mice. Mice were sacrificed seven days post-injection and bladder proteins isolated and processed for proteome profiling using mass spectrometry.
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Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing bladder. The central thesis is straightforward. The combination ofmicrodissected and laser capture microdissection (LCM) plus microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of the embryonic day 14 bladder, urogenital sinus, and urethra. Experiment Overall Design: Bladder, urogenital sinus, and urethra regions from embryonic day 14 SMGA/EGFP animals were microdissected and total RNA isolated for gene expression analysis using the Affymetrix MOE430 microarray chip.
2008-06-14 | E-GEOD-6223 | biostudies-arrayexpress
Project description:The lower urinary is derived from the endodermal precursor, the cloaca. Despite common embryological origins, the epithelial linings and surrounding mesenchyme of the bladder and urethra show divergence. The bladder forms from the anterior part of the urogenital sinus, a cloacal derivative formed after septation of the cloaca to form the anorectal and urogenital tracts. The urethra elongates posteriorly and shows sex-specific differences as a result of hormonal action. The bladder is a target for regenerative therapies and tissue reconstruction strategies. A significant shortcoming of these strategies has been the inability to recapitulate all layers of bladder epithelial cells, most importantly the apical uroplakin expressing cell layer that forms a tight, impermeable barrier against components in the urine. Epithelial-mesenchymal interactions are critical for organogenesis. Several studies have shown the ability of embryonic bladder mesenchyme to reprogram non-bladder epithelium to resemble bladder tissue at the molecular and cellular level. In this study, we performed bulk RNA-sequencing on the mesenchymal layers of the developing mouse bladder and urethra and identified compartmentalized organ-specific gene expression. Our study identified transcription factor genes and secreted protein genes specific to the bladder or urethra mesenchymal compartments. Additionally, we describe sex-specific differences in the lower urinary tract mesenchyme which are more pronounced between the male and female urethral mesenchyme and less evident in the bladder mesenchyme between sexes.
2025-01-01 | GSE253103 | GEO
Project description:The lower urinary is derived from the endodermal precursor, the cloaca. Despite common embryological origins, the epithelial linings and surrounding mesenchyme of the bladder and urethra show divergence. The bladder forms from the anterior part of the urogenital sinus, a cloacal derivative formed after septation of the cloaca to give rise to the anorectal and urogenital tracts. The urethra elongates posteriorly and shows sex-specific differences as a result of hormonal action. The bladder is a target for regenerative therapies and tissue reconstruction strategies. A significant shortcoming of these strategies has been the inability to recapitulate all layers of bladder epithelial cells, most importantly the apical uroplakin positive layer that forms a tight, impermeable barrier against components in the urine. The urethral epithelium is contiguous with the bladder epithelium but has distinct cellular architecture and lacks a uroplakin expressing apical layer. We hypothesized that comparison of the developing urethra and bladder epithelium will identify early genes that are responsible for urethra and bladder-specific differentiation. In this study, we compared the epithelial compartments of the developing mouse bladder and urethra to identify genes that are differentially expressed in these two compartments. Our study identified transcription factor genes and other tissue-specific markers that are confined to either the urethra or bladder epithelium. Additionally, we describe sex-specific differences in the lower urinary tract epithelium which are more pronounced between the male and female urethral epithelium and less evident in the bladder epithelium between sexes.
2025-01-01 | GSE253102 | GEO
Project description:The lower urinary is derived from the endodermal precursor, the cloaca. Despite common embryological origins, the epithelial linings and surrounding mesenchyme of the bladder and urethra show divergence. The bladder forms from the anterior part of the urogenital sinus, a cloacal derivative formed after septation of the cloaca to give rise to the anorectal and urogenital tracts. The urethra elongates posteriorly and shows sex-specific differences as a result of hormonal action. The bladder is a target for regenerative therapies and tissue reconstruction strategies. A significant shortcoming of these strategies has been the inability to recapitulate all layers of bladder epithelial cells, most importantly the apical uroplakin positive layer that forms a tight, impermeable barrier against components in the urine. The urethral epithelium is contiguous with the bladder epithelium but has distinct cellular architecture and lacks a uroplakin expressing apical layer. We hypothesized that comparison of the developing urethra and bladder epithelium will identify early genes that are responsible for urethra and bladder-specific differentiation. In this study, we compared the epithelial compartments of the developing mouse bladder and urethra to identify genes that are differentially expressed in these two compartments. Our study identified transcription factor genes and other tissue-specific markers that are confined to either the urethra or bladder epithelium. Additionally, we describe sex-specific differences in the lower urinary tract epithelium which are more pronounced between the male and female urethral epithelium and less evident in the bladder epithelium between sexes.
2025-01-01 | GSE275615 | GEO
Project description:The lower urinary is derived from the endodermal precursor, the cloaca. Despite common embryological origins, the epithelial linings and surrounding mesenchyme of the bladder and urethra show divergence. The bladder forms from the anterior part of the urogenital sinus, a cloacal derivative formed after septation of the cloaca to give rise to the anorectal and urogenital tracts. The urethra elongates posteriorly and shows sex-specific differences as a result of hormonal action. The bladder is a target for regenerative therapies and tissue reconstruction strategies. A significant shortcoming of these strategies has been the inability to recapitulate all layers of bladder epithelial cells, most importantly the apical uroplakin positive layer that forms a tight, impermeable barrier against components in the urine. The urethral epithelium is contiguous with the bladder epithelium but has distinct cellular architecture and lacks a uroplakin expressing apical layer. We hypothesized that comparison of the developing urethra and bladder epithelium will identify early genes that are responsible for urethra and bladder-specific differentiation. In this study, we compared the epithelial compartments of the developing mouse bladder and urethra to identify genes that are differentially expressed in these two compartments. Our study identified transcription factor genes and other tissue-specific markers that are confined to either the urethra or bladder epithelium. Additionally, we describe sex-specific differences in the lower urinary tract epithelium which are more pronounced between the male and female urethral epithelium and less evident in the bladder epithelium between sexes.
2025-01-01 | GSE275616 | GEO
Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing bladder. The central thesis is straightforward. The combination of microdissected and laser capture microdissection (LCM) plus microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of the embryonic day 14 bladder, urogenital sinus, and urethra. Keywords: Gene expression comparison from developing regions of the mouse embryonic day 14 urogenital system
2006-11-18 | GSE6223 | GEO
Project description:Bladder culture collection reveals interconnected urogenital microbiome
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Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing bladder. The central thesis is straightforward. The combination of microdissected tissues and FACS sorted cells plus microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of FACS sorted newborn bladder cells and compares two distinct cell populations of smooth muscle cells. Experiment Overall Design: Sorted bladder cells and bladder tissue from newborn SMGA/EGFP and SMAA/EYFP animals were microdissected or laser captured and total RNA isolated for gene expression analysis using the Affymetrix MOE430 microarray chip.
2008-06-11 | E-GEOD-11161 | biostudies-arrayexpress