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Expression data from mouse neonatal ovarian 3MC culture experiments

ABSTRACT: Mammalian females are born with a finite number of non-renewing primordial follicles, the majority of which remain in a quiescent state for many years. Due to their non-renewing nature, these resting oocytes are particularly vulnerable to xenobiotic insult, resulting in premature ovarian senescence and the formation of dysfunctional oocytes. In this study we characterised the mechanisms of ovotoxicity for the ovotoxic agent 3-methylcholanthrene (3MC), which targets immature follicles. Neonatal mouse ovaries (PND3-4) were cultured in the presence of 3MC (5 µM) for 96 hours to observe their effects on the ovarian transcriptome. This was done in the hopes of gaining a better understanding of the mechanisms underpinning xenobiotic induced pre-antral ovotoxicity.

ORGANISM(S): Mus musculus

PROVIDER: GSE35836 | GEO | 2012/02/16

SECONDARY ACCESSION(S): PRJNA151963

REPOSITORIES: GEO

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Expression data from mouse neonatal ovarian 3MC culture experiments

Project description:Mammalian females are born with a finite number of non-renewing primordial follicles, the majority of which remain in a quiescent state for many years. Due to their non-renewing nature, these resting oocytes are particularly vulnerable to xenobiotic insult, resulting in premature ovarian senescence and the formation of dysfunctional oocytes. In this study we characterised the mechanisms of ovotoxicity for the ovotoxic agent 3-methylcholanthrene (3MC), which targets immature follicles. Neonatal mouse ovaries (PND3-4) were cultured in the presence of 3MC (5 µM) for 96 hours to observe their effects on the ovarian transcriptome. This was done in the hopes of gaining a better understanding of the mechanisms underpinning xenobiotic induced pre-antral ovotoxicity. Ovaries from day 3-4 Swiss neonatal mice were cultured in 3MC containing media for 96 hours. The ovaries were then collected for RNA extraction and hybridization on an Illumina Sentrix Mouse ref-8 v2 Beadchip

2012-02-16 | E-GEOD-35836 | biostudies-arrayexpress

Expression data from mouse neonatal ovarian DMBA and BaP culture experiments

2011-05-13 | GSE29263 | GEO

Expression data from mouse neonatal ovarian DMBA and BaP culture experiments

Project description:Mammalian females are born with a finite number of non-renewing primordial follicles, the majority of which remain in a quiescent state for many years. Due to their non-renewing nature, these “resting” oocytes are particularly vulnerable to xenobiotic insult, resulting in premature ovarian senescence and the formation of dysfunctional oocytes. In this study we characterised the mechanisms of ovotoxicity for the ovotoxic agent 7,12-dimethylbenz-[a]anthracene (DMBA), which targets immature follicles. Neonatal mouse ovaries (PND3-4) were cultured in the presence of DMBA (50nM) or BaP (1uM) for 96 hours to observe their effects on the ovarian transcriptome. This was done in the hopes of gaining a better understanding of the mechanisms underpinning xenobiotic induced pre-antral ovotoxicity. Ovaries from day 3-4 Swiss neonatal mice were cultured in DMBA or BaP containing media for 96 hours. The ovaries were then collected for RNA extraction and hybridization on an Illumina Sentrix Mouse ref-8 v2 Beadchip

2011-05-13 | E-GEOD-29263 | biostudies-arrayexpress

Expression data from mouse neonatal ovarian xenobiotic culture experiments

Project description:Mammalian females are born with a finite number of non-renewing primordial follicles, the majority of which remain in a quiescent state for many years. Due to their non-renewing nature, these “resting” oocytes are particularly vulnerable to xenobiotic insult, resulting in premature ovarian senescence and the formation of dysfunctional oocytes. In this study we characterised the mechanisms of ovotoxicity for three ovotoxic agents, 4-Vinylcyclohexene Diepoxide (VCD), Methoxychlor (MXC), and Menadione (MEN), all of which target immature follicles. Neonatal mouse ovaries (PND3-4) were cultured in the presence of 4-Vinylcyclohexene Diepoxide (50uM), Methoxychlor (50uM), and Menadione (5uM) for 96 hours to observe their effects on the ovarian transcriptome. This was done in the hopes of gaining a better understanding of the mechanisms underpinning xenobiotic induced pre-antral ovotoxicity.

2010-08-21 | GSE23725 | GEO

Expression data from adult mouse ovaries exposed to cigarette smoke in vivo

2012-12-13 | GSE42889 | GEO

Expression data from adult mouse ovaries exposed to cigarette smoke in vivo

Project description:Mammalian females are born with a finite number of non-renewing primordial follicles, the majority of which remain in a quiescent state for many years. Due to their non-renewing nature, these M-bM-^@M-^\restingM-bM-^@M-^] oocytes are particularly vulnerable to xenobiotic insult, resulting in premature ovarian senescence and the formation of dysfunctional oocytes. In this study we characterised the mechanisms behind cigarette smoke induced ovotoxicity, which is characterised by primordial follicle depletion. C57BL/6 5 week old female mice were exposed to cigarette smoke five times per week, for 12-18 weeks using a custom-designed and purpose-built nose-only, directed flow inhalation and smoke-exposure system. This was done in the hopes of gaining a better understanding of the mechanisms underpinning cigarette smoke induced ovotoxicity. C57BL/6 5 week old female mice were exposed to cigarette smoke (twelve 3R4F reference cigarettes (University of Kentucky, USA) twice/day, 2.7 mg particulate matter) five times per week, for 12-18 weeks using a custom-designed and purpose-built nose-only, directed flow inhalation and smoke-exposure system. Their ovaries were then collected for RNA extraction and hybridization on an Illumina Sentrix Mouse ref-8 v2 Beadchip

2012-12-13 | E-GEOD-42889 | biostudies-arrayexpress

Proteome of fluid from human ovarian small antral follicles reveals insights in folliculogenesis and oocyte maturation.

Project description:Protein composition of human ovarian follicular fluid (FF) constitutes the microenvironment for oocyte development. Several proteomics studies of FF from pre-ovulatory follicles have revealed insights on oocyte maturation, however, there is a lack of knowledge on changes produced at protein levels in the FF of human small antral follicles (hSAF) related to the upcoming oocyte maturation. Using mass spectrometry-based proteomics, we evaluated the protein composition of FF that surrounds oocytes capable to reach metaphase II (MII) after IVM with the protein profile of FF that surrounds immature oocytes. The samples were collected from small antral follicles (size 6.0 ± 1.5 mm) extracted from six women, from which two or three samples were extracted. The comparison was based on both, a multivariate (sPLS-DA) and univariate analyses (t-test).

2021-09-09 | PXD021338 | Pride

Transcription profiling of rat folliculogenesis reveals glial derived neurotrophic factor promotes ovarian primordial follicle development

Project description:Female fertility is determined in part by the size and development of the primordial follicle pool. The current study investigates the role of glial cell-line derived neurotrophic factor (GDNF) in the regulation of primordial follicle development in the ovary. Ovaries from four-day old female rat pups were maintained in organ culture for ten days in the absence (control) or presence of GDNF or kit ligand/stem cell factor (KL). Ovaries treated with GDNF contained a significant increase in developing follicles, similar to that observed with KL treatment previously shown to promote follicle development. The actions of GDNF on the ovarian transcriptome were investigated with a microarray analysis. Immunohistochemical studies demonstrated that GDNF is localized to oocyte cytoplasm in follicles of all developmental stages, as well as to cumulus granulosa cells and theca cells in antral follicles. GDNF receptor alpha 1 (GFRalpha1) staining was localized to oocyte cytoplasm of primordial and primary follicles, and at reduced levels in oocytes of antral follicles. GFRalpha1 was present in mural granulosa cells of antral follicles, theca cells, and the ovarian surface epithelium. The localization studies were confirmed with molecular analysis. Microarray analysis was used to identify changes in the ovarian transcriptome and further elucidate the signaling network regulating early follicle development. Observations indicate that GDNF promotes primordial follicle development and mediates autocrine and paracrine cell-cell interactions required during folliculogenesis. In contrast to the testis, ovarian GDNF is predominantly produced by germ cells (oocytes) rather than somatic cells. Experiment Overall Design: RNA samples from two control groups (pooled untreated cultured ovaries) are compared to two treated groups (pooled cultured ovaries treated with GDNF)

2008-06-11 | E-GEOD-11133 | biostudies-arrayexpress

Interactions between different maturation states of oocytes and granulosa cells in human antral follicles identified by single-cell transcriptomics

Project description:Human ovarian folliculogenesis is an highly regulated and complex process. Characterization of follicular cell signatures during this dynamic process is important to understand follicle fate (to grow, become dominant or undergo atresia). The transcriptional signature of human oocytes and granulosa cells (GC) in early-growing and ovulatory follicles have been previously described, however that of oocytes with surrounding GCs in small antral follicles have not been studied yet. Here, we have generated a unique dataset of single-cell transcriptomics (SmartSeq2) consisting of the oocyte with surrounding GCs from several individual (non-dominant) small antral follicles isolated from adult human ovaries. We have identified two main types of (healthy) follicles, with a distinct oocyte and GC signature. Using the CellphoneDB algorithm, we then investigated the bi-directional ligand-receptor interactions regarding the TGFβ/BMP, WNT, NOTCH, and receptor tyrosine kinases (RTK) signaling pathways between oocyte and GCs within each antral follicle type. Our work not only revealed the diversity of small antral follicles but also contributes to fill the gap in mapping the molecular landscape of human folliculogenesis and oogenesis.

2021-10-26 | GSE186504 | GEO

Two-cell developmental block is due to the lack of cytoplasmic lattices in mouse antral oocytes

Project description:Mammalian oogenesis is a complex mechanism entailing the maturation of primordial follicles into preovulatory follicles followed by the release of antral oocytes. In the ovary, the antral compartment consists of two populations of oocytes whose main difference regards the ability to resume meiosis and to develop, after the egg-sperm fusion, until the blastocyst stage. Still inexplicably, the antral oocytes distinguishable as Surrounded Nucleolus (SN; 70% of the antral oocytes population) are able to develop to the blastocyst stage, while those showing a Not Surrounded Nucleolus (NSN) arrest at the two-cell stage.

2013-02-04 | GSE34671 | GEO

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