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Altered microRNA profiles in cumulus cells isolated from PCOS patients

ABSTRACT: To identify the altered miRNA expression profiles of PCOS patients, the differentially expressed miRNAs were identified from cumulus cells of PCOS patients by comparing to that of normal women.

ORGANISM(S): Homo sapiens

PROVIDER: GSE72274 | GEO | 2016/06/01

SECONDARY ACCESSION(S): PRJNA293567

REPOSITORIES: GEO

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Altered microRNA profiles in cumulus cells isolated from PCOS patients

Project description:To identify the altered miRNA expression profiles of PCOS patients, the differentially expressed miRNAs were identified from cumulus cells of PCOS patients by comparing to that of normal women. Case-control study that involved 18 women with PCOS and 18 women without PCOS (control). The miRNA expression profiles of cumulus cells were identified by miRNA array.

2016-06-01 | E-GEOD-72274 | biostudies-arrayexpress

Expression profiles of human cumulus cells from patients with PCOS and non-PCOS

Project description:To reveal mRNAs expression differences in cumulus cells between polycystic ovary syndrome (PCOS) and non-PCOS women. mRNAs expression profile of the cumulus cell samples with PCOS and non-PCOS were determined by Illumina Novaseq 6000.

2024-10-30 | GSE277906 | GEO

LncRNAs expression signatures of cumulus cells isolated from PCOS patients revealed by microarray

Project description:Our study is the first one to determine genome-wide lncRNAs expression patterns in cumulus cells of PCOS patients by microarray. The results displayed that clusters of lncRNAs (n=623) were aberrantly expressed in PCOS patients compared with non-PCOS patients. Many differentially expressed lncRNAs were transcribed from regions on chromosome 2 and classified into enhancer-like lncRNA subgroup. XLOC_011402 (PWRN2) was found for the first time that it was not only expressed in testis but also in cumulus cells. All the results revealed that lncRNAs differentially expressed in cumulus cells may exert a partial or key role in hormone abnormalities of PCOS patients and maybe impact on oocyte development. Taken together, this study may provide potential targets for further treatment of PCOS and novel insights into oocyte development.

2016-02-01 | GSE65746 | GEO

miRNAs expression profile of the cumulus cell samples with PCOS and non-PCOS

2015-04-28 | GSE68285 | GEO

miRNAs expression profile of the cumulus cell samples with PCOS and non-PCOS

Project description:To reveal microRNAs expression differences in cumulus cells between polycystic ovary syndrome (PCOS) and non-PCOS women. miRNAs expression profile of the cumulus cell samples with PCOS and non-PCOS were determined by Affymetrix miRNA 2.0. Six pooled RNAs from CC samples (three PCOS and three non-PCOS pooled RNAs) were separately analyzed on 6 GeneChip miRNA 2.0 Array (miRBase V15)

2015-04-28 | E-GEOD-68285 | biostudies-arrayexpress

Transcription profiling of human cumulus cells in vitro isolated from polycystic ovary syndrome lean and obese individuals reveals PCOS in lean and obese individuals is associated with different molecular pathways

Project description:Objective: The etiology of PCOS is mostly unknown. Existing data support both genetic and environmental factors in its pathogenesis. Design: Prospective case - control study. Setting: University Hospital. Patients: 25 patients undergoing IVF-ICSI treatment. Intervention: Genome-wide oligonucleotide microarray technology was used to study differential gene-expression patterns of cultured human cumulus cells from IVF patients divided into 4 groups according to disease state (PCOS vs. Control) and BMI (Obese vs. Lean). Results: Two differential PCOS gene expression profiles were established: Lean-Type was formed by comparing PCOS lean (PL) vs. non-PCOS lean (NL) individuals; Obese-Type was formed by comparing PCOS obese (PO) vs. non-PCOS (NO) obese patients. Conclusions: Different molecular pathways are associated with PCOS in Lean and Obese individuals, as demonstrated by gene expression profiling of cumulus cells. Our findings provide insights into the molecular pathogenesis of PCOS. We used microarrays to study the gene expression of human cultured cumulus cells. We compared the genes expression of lean PCOS, Obese PCOS, lean controls and obese controls. Different molecular pathways are associated with PCOS in Lean and Obese patients. Experiment Overall Design: Cumulus cells obtained from woman undergoing IVF/ICSI. Following oocyte retrieval, cumulus cells were stripped from the oocyte, in preparation for the ICSI process, with a micropipette. After 48h in culture the cumulus cells were collected for RNA extraction and hybridization on Affymetrix microarrays. We compered the expression profile of 4 groups - lean PCOS, obese PCOS, lean controls and obese controls.

2008-06-11 | E-GEOD-10946 | biostudies-arrayexpress

Expression data from human cumulus cells isolated from oocytes at MI and MII stages in polycystic ovary syndrome (PCOS) patients

Project description:Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder that is characterized by increased circulating androgen levels, anovulatory infertility, and frequently, insulin resistance and hyperinsulinemia.The abnormity of oocyte nuclear maturity is the main reason for anovulatory infertility and pregnancy loss in PCOS patients.The bidirectional exchanges between oocyte and contiguous CCs are important for oocyte competence acquisition, early embryonic development and CC expansion.Gene expression profiles of CCs has been suggested to predict embryo development and pregnancy outcome. We used microarrays to detail the global programme of gene expression of CCs isolated from oocytes at metaphase I (CCMI) and metaphase II (CCMII) stage under controlled ovarian stimulation (COS) cycle in PCOS patients. Cumulus cells were isolated from oocyte at stage metaphase 1(MI)and stage metaphase II (MII) of PCOS patients for RNA extraction and hybridization on Affymetrix microarrays. For microarray analysis, we used three chips for each CC category. That is, CCMI1,CCMI2,CCMI3,CCMII1,CCMII2 and CCMII3.

2013-06-05 | E-GEOD-40400 | biostudies-arrayexpress

To compare the transcriptome expression of cumulus granulosa cells between PCOS patients with insulin resistance and women undergoing assisted reproduction for fallopian tube reasons

Project description:Purpose polycystic ovary syndrome (PCOS) is the most common endocrine and metabolic disorder in women of childbearing age. It is characterized by follicular dysplasia and hyperandrogenemia. Insulin resistance plays an important role in the development of PCOS.However, the mechanism of regulation and interaction between insulin resistance and follicle development remains unclear.The aim of this study was to identify differential genes associated with follicle development in cumulus granulosa cells in PCOS patients with insulin resistance compared with controls. Methods In this study, RNA-seq, bioinformatics analysis and reverse transcription qPCR (RT-qPCR) were used to analyze the gene expression in cumulus granulosa cells.A total of seven cDNA libraries were constructed from three PCOS samples and four control samples.3 μg of RNA was used as starting material for each sample.Ribosomal RNA was removed using the Epicentre rigo-zero ™ Gold Kit (Epicentre, Illumina, Madison, WI, USA). Results Compared with the control group, there were 2233 DEGs in the PCOS group, including 1158 up-regulated genes and 1075 down-regulated genes. Some different expression patterns were observed in the two groups.The next series of experiments verified the effect of some genes on oocyte development. Conclusion Our study showed that the differential expression of transcriptome in cumulus granulosa cells could affect the growth, development and maturation of oocytes.Meanwhile, the results of RT-PCR and Elisa showed that the expression of renin angiotensin system was changed in PCOS patients with insulin resistance, and these changes could affect oocyte maturation and excretion through cumulus granulosa cells.

2023-10-01 | GSE216609 | GEO

PCOS patients vs control subjects

Project description:This experiment was designed to study if there are differences in gene expression in the adipose tissue of women affected by polycystic ovary syndrome (PCOS) compared to non-hyperandrogenic women. PCOS is the most common endocrinopathy in women of reproductive age, and is characterized by hyperandrogenism and chronic anovulation. This disease is frequently associated with obesity, insulin resistance, and defects in insulin secretion, predisposing these women to type 2 diabetes, atherosclerosis, and cardiovascular disease. We have applied high-density oligonucleotide arrays to omental adipose tissue samples obtained from eight morbidly obese PCOS patients and seven morbidly obese non-PCOS women at the time of bariatric surgery. Keywords: Disease state analysis

2006-06-17 | GSE5090 | GEO

Expression profiling of circular RNA in the cumulus cells of patients with polycystic ovary syndrome

Project description:Polycystic ovary syndrome (PCOS) is the most common and heterogeneous endocrine disorder in women of reproductive age.Depending on different criteria and populations,the prevalence of PCOS ranges from 6 to 8% with the NIH criteria, and up to 20% with the Rotterdam criteria.Further, it accounts for approximately 75% of anovulatory infertility.Circular RNAs (circRNAs) mediate the posttranscriptional regulation of multiple genes by functioning as microRNA (miRNA) sponges. This study aimed to detect the novel expression of circRNAs in the cumulus cells (CCs) of PCOS patients and their potential significance in the pathogenesis of PCOS.

2020-02-14 | GSE145296 | GEO

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