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RNAseq of the in vitro matured and in vivo matured monkey oocytes

ABSTRACT: Oocyte quality largely determines the embryo development after fertilization. High-quality oocyte requires the competence of both cytoplasm and nucleus. However, clinically, the treatment of developmentally competent oocytes was limited. Here, in order to improve the embryo development efficiency of developmentally incompetent oocytes, we performed spindle-chromosome complex (SCC) transfer between in vitro matured (IVM) and in vivo matured (IVO) oocytes of the non-human primate. We observed that the blastocyst rate of embryos derived by transferring the SCC of IVM (IVM-SCC) oocytes into enucleated IVO oocytes was comparable with that of embryos derived by IVO oocytes. After transferring the reconstructed embryos into the uterus of surrogate mothers, two live rhesus monkeys were obtained, indicating that the nuclei of IVM oocytes support both the pre-and post-implantation embryo development of non-human primates.

ORGANISM(S): Macaca fascicularis

PROVIDER: GSE233232 | GEO | 2023/07/15

REPOSITORIES: GEO

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Nucleus of cytoplasmic incompetent oocytes directs the full-term development of non-human primate embryos in developmental competent cytoplasm

Project description:Oocyte quality largely determines the embryo development after fertilization. High-quality oocyte requires the competence of both cytoplasm and nucleus. However, clinically, the treatment of developmentally competent oocytes was limited. Here, in order to improve the embryo development efficiency of developmentally incompetent oocytes, we performed spindle-chromosome complex (SCC) transfer between in vitro matured (IVM) and in vivo matured (IVO) oocytes of the non-human primate. We observed that the blastocyst rate of embryos derived by transferring the SCC of IVM (IVM-SCC) oocytes into enucleated IVO oocytes was comparable with that of embryos derived by IVO oocytes. After transferring the reconstructed embryos into the uterus of surrogate mothers, two live rhesus monkeys were obtained, indicating that the nuclei of IVM oocytes support both the pre-and post-implantation embryo development of non-human primates.

2022-12-31 | GSE221785 | GEO

Single-cell quantitative proteomic analysis of oocyte maturation revealed high heterogeneities in human in vitro matured oocytes

Project description:In this study we investigated the protein expression patterns during human oocyte in vitro and in vivo maturation (IVO) by single-cell quantitative proteomic analysis of 36 human oocytes. Among 2,094 proteins quantified in 34 oocytes (GV: 11 oocytes, IVM: 12 oocytes, IVO: 11 oocytes), 224 were differential between IVO and GV oocytes during in vivo maturation, and 61 between IVM and IVO oocytes.

2022-08-02 | PXD023366 | Pride

Increased environment-related metabolism and genetic expression in the in vitro matured mouse oocytes by transcriptome analysis

Project description:Infertility is a world-wide problem for the human at reproductive age, and oocyte in vitro maturation (IVM) is generally applied to acquire the embryo in assisted reproductive technology (ART) for this issue. However, it is still unclear for the differences of RNA expression profile in the oocytes between in vivo (IVO) and IVM culture environment. In this study, we compared the global RNA transcription pattern of oocytes from in vitro and in vivo maturation in mouse. Our results showed that 1864 genes differentially expressed between the IVO and IVM oocytes. Among these 1638 genes were up-regulated and 226 genes were down-regulated, and these changes were mainly divided into environmental adaption, metabolism and genetic expression. Our detailed analysis showed that the expression of genes which belong to metabolism-related processes such as energy metabolism, nucleotide metabolism and carbohydrate metabolism was changed; and these genes were also belonged to organismal systems including environmental adaptation and circulatory system; moreover, we also found that the relative gene expression of genetic expression processes, such as protein synthesis, modification, and DNA replication and repair were also altered. In conclusion, our data suggest that in vitro maturation of mouse oocyte resulted in metabolism and genetic expression changes by environmental changes compared with in vivo matured oocytes.

2021-01-27 | GSE165546 | GEO

single-cell RNA sequencing of in vivo matured and maturation deficient human oocytes

Project description:Single cell transcriptomic composition of in vivo matured (IVO) MII oocytes and maturation deficient (MD) oocytes discloses the aberrant expression level of spliceosomal proteins, accompanying with differential alternative splicing (DAS) events.

2022-03-30 | GSE129123 | GEO

The bovine cumulus proteome of cumulus oocyte complexes that successfully matured or failed to mature after maturation in-vitro and in-vivo

Project description:The oocyte forms a complex with their somatic cumulus cells within the follicle throughout the preovulatory maturation steps. Cumulus cells support their oocyte not only through mechanical protection but also with a close bidirectional exchange of metabolites. Analysis of the oocytes cumulus gives the opportunity to explore non-invasively oocytal well-being and quality. In vitro maturation (IVM) is the first rate-limiting step in in vitro embryo production. Analysis of protein expression in cumulus cells around this critical step helps to explore the impact of maturation conditions and to examine an influence on maturational competence of the oocyte. The goal of this study was the comparison of the cumulus proteome of oocytes with and without maturational competence matured under in vivo and in vitro conditions. Therefore twenty cumulus samples corresponding to single oocytes were analysed. Half of the samples were matured in vivo and the other half in vitro. For each maturation group, cumulus from oocytes matured successfully (SM; n=5) and failed to mature (FM; n=5) were analysed.

2020-06-30 | PXD016679 | Pride

Gene Expression Profiles in Immature and In vitro matured bovine Oocytes

Project description:In cattle, almost all fully grown vesicle stage oocytes (GV) have the ability to resume meisos, develop to Metaphase II stage (MII), support fertilization and progress through the early embryonic cycles in vitro. Yet without intensive selection, the majority fail to develop to the blastocyst stage. Using the Affymetrix Bovine Genome Array, global mRNA expression analysis of immature (GV) and in vitro matured (IVM) bovine oocytes was carried out to characterize the transcriptome of the bovine oocyte and to identify the key pathways associated with oocyte meiotic maturation and developmental potential. Immature and in vitro matured bovine oocytes were collected for RNA extraction and hybridization on Affymetrix GeneChip Bovine Genome array. Careful removal of cumulus and selection of oocytes was carried out under the stereo microscope in order to examine the actual cumulus-free temporal oocyte gene expression profiles. Immature oocytes at time 0 h and in vitro matured oocytes at 24 h were collected for analysis.

2011-04-25 | E-GEOD-23449 | biostudies-arrayexpress

Transcriptional profiling of cumulus cells entoured the oocyte after in vitro or in vivo maturation in bovine (Bos taurus)

Project description:In vitro maturation (IVM) of the oocytes is a routine method in bovine embryo production. The competence of bovine oocytes to develop into embryo after IVM and in vitro fertilization (IVF) is lower as compared to in vivo preovulatory oocytes. Cumulus cells (CC) that enclose an oocyte are involved in the acquisition of oocyte quality during maturation. Using transcriptomic approach we compared cumulus cells gene expression during IVM with that in vivo preovulatory period. Global transcriptional profiling was performed using cumulus cells collected from mature bovine oocytes (metaphase-II stage) after maturation performed either in vivo or in vitro. In vivo matured cumulus cells were collected from ovulatory follicles of Montbeliard adult cows by ovum pick-up in vivo (OPU, n=4). In vitro matured cumulus cells were recovered from the oocytes after 22h of in vitro culture of cumulus-oocyte complexes (50 COC per experiment) from 2-6 mm ovarian follicles of adult cows (MIV, n=4). Gene expression analysis was carried out between in vivo and in vitro matured cumulus representing a total of 8 slides (dye swap protocol)

2011-08-08 | E-GEOD-31261 | biostudies-arrayexpress

In vivo and in vitro matured oocytes from mice of advanced reproductive age exhibit alternative splicing processes for mitochondrial oxidative phosphorylation

Project description:The mean age of women seeking infertility treatment has gradually increased over recent years. This has coincided with the emergence of in vitro maturation (IVM), a method used in assisted reproductive technology for patients with special requirements. However, when compared with conventional in vitro fertilization, IVM is associated with poor embryonic development potential and low live birth rates, thus limiting the widespread application of this technique. In this study, we performed RNA-sequencing transcriptomic assays and identified a total of 2,627 significant differentially expressed genes (DEGs) between IVM oocytes and in vivo matured oocytes from mice of advanced reproductive age. Next, Kyoto Encyclopedia of Genes and Genomes pathway analysis was used to identify the potential functions of the DEGs. The most significantly enriched pathway was oxidative phosphorylation (OXPHOS). In addition, we constructed a protein-protein interaction network to identify key genes and determined that most of the hub genes were mtDNA-encoded subunits of respiratory chain complex I. Antioxidant supplementation lead to an increase in ATP production and reduced the gene expression profile of the OXPHOS pathway in the IVM group. Moreover, alternative splicing (AS) events were identified during in vivo or in vitro oocyte maturation; data showed that skipped exons were the most frequent type of AS event. A number of genes associated with the OXPHOS pathway exhibited alterations in AS events, including Ndufa7, Ndufs7, Cox6a2, Ndufs5, Ndufb1, and Uqcrh. Furthermore, the process of IVO promoted the skipping of exon 2 in Ndufa7 and exon 3 in Ndufs7 compared with the IVM oocytes, as determined by semi‑quantitative RT‑PCR. Collectively, these findings provide potential new therapeutic targets for improving IVM of aged women who undergo infertility treatment.

2022-01-13 | GSE182711 | GEO

Microarray data of prepubertal, peripubertal, and adult oocytes, and from GV and MII oocytes matured in vivo or in vitro

2010-07-12 | GSE12432 | GEO

Microarray data of prepubertal, peripubertal, and adult oocytes, and from GV and MII oocytes matured in vivo or in vitro

Project description:Expression data from prepubertal, peripubertal, and adult derived mouse oocytes, and from germinal vesicle (GV), in vivo matured, and in vitro matured mouse oocytes. Oocytes derived from prepubertal females, or oocytes matured in vitro, are less developmentally competent compared to adult derived, or in vivo matured, oocytes, indicated by decreased embryonic development. One potential mechanism for decreased developmental potetential in prepubertal or in vitro matured oocytes is inadequate or inappropriate RNA degradation during oocyte maturation (progression from GV to MII). To investigate mechanisms involved in establishing oocyte cytoplasmic maturation and developmental competence, Affymetrix GeneChip microarrays were used. Keywords: Oocyte developmental competence The study encompassed three experimental designs using female B6D2F1 mice: 1) In vitro matured oocytes were obtained from d20 (prepubertal), d26 (peripubertal), and 7-8 wk old (adult) mice; 2) in vivo and in vitro matured oocytes were obtained from d26 mice; and 3) GV, in vivo matured, and in vitro matured oocytes were obtained from 7-8 wk old mice. RNA was extracted from pools of 150 oocytes and hybridized onto the Affymetrix microarrays.

2010-07-12 | E-GEOD-12432 | biostudies-arrayexpress

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