Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

58 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Identification of genes regulated by early embryo in bovine oviduct epithelial cells

ABSTRACT: In this study, we focused on the changes of mRNA expression in bovine oviduct epithelial cells in vitro co-cultured with embryos during preimplantation development in order to identify genes, which might be involved in embryo-maternal communication. For this purpose, we used large-scale cDNA microarray hybridizations to identify the genes differentially regulated in bovine oviduct epithelial cells (Boec) during in vitro culture. The main objective was to identify genes which are differentially expressed due to the presence or absence of bovine embryos on cell monolayers. Global transcriptional profiling was performed using 13 days Bovine oviduct epithelial cells (Boec) cultured in vitro with SOF media RNA as control samples (BOEC_SOF_CTL, n=3) for comparison to the experimental samples taken at the same culture time (day 13) and stimulated by the presence of bovine embryos during the last 8 days of culture (BOEC_SOF+EMB, n=3).Gene expression analysis was carried out between Boec with or without stimulation of embryos representing a total of 6 slides (dye swap protocol).

ORGANISM(S): Bos taurus

SUBMITTER: barbara schmaltz-barbara

PROVIDER: E-GEOD-44283 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Fine mapping of genome activation in bovine embryos by RNA sequencing

Project description:During maternal-to-embryonic transition control of embryonic development gradually switches from maternal RNAs and proteins stored in the oocyte to gene products generated after embryonic genome activation (EGA). Detailed insight into the onset of embryonic transcription is obscured by the presence of maternal transcripts. Using the bovine model system, we established by RNA sequencing a comprehensive catalogue of transcripts in germinal vesicle and metaphase II oocytes, and in embryos at the 4-cell, 8-cell, 16-cell and blastocyst stages. These were produced by in vitro fertilization of Bos t. taurus oocytes with sperm from a Bos t. indicus bull to facilitate parent-specific transcriptome analysis. Transcripts from 12.4 to 13.7 M-CM-^W 10^3 different genes were detected in the various developmental stages. EGA was analyzed by i) detection of embryonic transcripts which are not present in oocytes; ii) detection of transcripts from the paternal allele; and iii) detection of primary transcripts with intronic sequences. These strategies revealed (i) 220, (ii) 937, and (iii) 6,848 genes to be activated from the 4-cell to the blastocyst stage. The largest proportion of gene activation, i.e. (i) 59%, (ii) 42%, and (iii) 58%, was found in 8-cell embryos, indicating major EGA at this stage. Gene ontology analysis of genes activated at the 4-cell stage identified categories related to translation, RNA processing and transport, consistent with preparation for major EGA. Our study provides the largest transcriptome data set of bovine oocyte maturation and early embryonic development and new insight into the timing of embryonic activation of specific genes. RNA-Seq profiles from pools of 10 ooytes/embryos from bovine Bos t. taurus GV and MII oocytes and a cross-breed of Bos t. taurus x Bos t. indicus from 4-cell, 8-cell, 16-cell and blastocysts generated using Illumina GAIIx

2014-02-09 | E-GEOD-52415 | biostudies-arrayexpress

Expression data from pig oviduct in response to X or Y chromosome bearing spermatozoa

Project description:The objective of the present study is to investigate if females have the ability to recognise X or Y chromosome bearing spermatozoa and present a different response to different spermatozoa. In order to investigate if females have the ability to recognise X or Y chromosome bearing spermatozoa and present a different response to different spermatozoa. Samples of semen were sorted for chromosomal sex by M-oM-,M-^Bow cytometric-sorting. Using laparoscopic insemination one oviduct was inseminated with X spermatozoa and the contralateral oviduct was inseminated with Y spermatozoa.This allowed us to obtain samples from the oviduct in contact with X sperm and Y sperm in the the contrlateral oviduct from the same sow. Oviduct pig samples were collected for RNA isolation and hybridization on Affymetrix microarrays. Four biological replicates were performed (n= 4 sows) and a total of 8 arrays were used for microarrays study (4 arrays for oviduct samples in contact with X spermatozoa and 4 arrays for oviduct samples in contact with Y spermatozoa.

2014-05-20 | E-GEOD-47139 | biostudies-arrayexpress

Effect of vitrification using the Cryotop method on the gene expression profile of in vitro-produced bovine embryos

Project description:Changes in gene expression induced by the Cryotop vitrification procedure in bovine blastocysts using Agilent EmbryoGENE microarray slides. Bovine in vitro-produced embryos at the blastocyst stage (144 to 156 hours post insemination) were vitrified using the Cryotop system and compared with non-vitrified (control) embryos. After vitrification, the embryos were warmed and cultured for an additional 4 hours. Embryos that re-expanded or developed to the expanded blastocyst stage were used for microarray analysis. Four pools of vitrified embryos were hybridized against four pools of control embryos in a dye-swap design.

2015-08-03 | E-GEOD-65953 | biostudies-arrayexpress

Colony stimulating factor 2 causes changes in the transcriptome of the bovine preimplantation embryo

Project description:The objective of this study was to identify changes on the CSF2 embryo transcriptome that make them more able to become a blastocyst and more likely to survive after transfer. Embryos were treated with CSF2 at day 5 after fertilization and at day 6 morulae and blastocysts were select for the microarray analysis. A total of 160 genes that had a 1.5-fold difference in expression and a significance of P M-bM-^IM-$ 0.05 could be annotated. Analysis of the data identified 13 biological process ontologies that could be grouped into four functional groups (development and differentiation process, cell communication, apoptosis and cell adhesion). Experimental conditions: CSF2 treated vs. CSF2 nontreated bovine in vitro produced preimplantation embryos. Biological replicates: CSF2 treated vs. nontreated bovine preimplantation embryos were used in a dye switch two-color microarray experimental design. Ratio data was not used in these experiments.

2011-03-30 | E-GEOD-22579 | biostudies-arrayexpress

Effects of High Hydrostatic Pressure on Expression Profiles of In Vitro Produced Vitrified Bovine Blastocysts

Project description:High hydrostatic pressure (HHP) has been used to pre-condition embryos before essential, yet potentially detrimental procedures such as cryopreservation. However, the mechanisms for HHP are poorly understood. We treated bovine blastocysts with three different HHP (40, 60 and 80 MPa) in combination with three recovery periods (0, 1h, 2h post HHP). Re-expansion rates were significantly higher at 40 and 60 but lower at 80 MPa after vitrification-warming in the treated groups than controls. Microarray analysis revealed 399 differentially expressed transcripts, representing 254 unique genes, among different groups. Gene ontology analysis indicated that HHP at 40 and 60 MPa promoted embryo competence through down-regulation of genes in cell death and apoptosis, and up-regulation of genes in RNA processing, cellular growth and proliferation. In contrast, 80 MPa up-regulated genes in apoptosis, and down-regulated protein folding and cell cycle-related genes. Moreover, gene expression was also influenced by the length of the recovery time after HHP. The significantly over-represented categories were apoptosis and cell death in the 1h group, and protein folding, response to unfolded protein and cell cycle in the 2h group compared to 0h. Taken together, HHP promotes competence of vitrified bovine blastocysts through modest transcriptional changes. 4*3*2 design experiment. The following treatments were included: (1) Control embryos were left untreated in the incubator (one atmospheric pressure or 0.1 MPa); (2) treatment groups were assigned to 40, 60 and 80 MPa HHP for 1h at either 24Â°C (room temperature) or 39Â°C (body temperature), followed by three different recovery time periods (0, 1 and 2h) post-HHP in the holding medium. Biological replicates: 3 control replicates. Technical replicates: dye-swap.

2015-12-10 | E-GEOD-75559 | biostudies-arrayexpress

Expression data from pig uterus in response to embryos at blastocyst satge and oocytes

Project description:The maternal tract plays a critical role in the success of early embryonic development providing an optimal environment for establishment and maintenance of pregnancy. Preparation of this environment requires an intimate dialogue between the embryo and her mother. To advance our understanding of the process by which a foreign blastocyst is accepted by the maternal endometrium and better address the clinical challenges of infertility and pregnancy failure, it is imperative to decipher this complex molecular dialogue. The objective of the present work is to define the local response(s) of the maternal tract towards the embryo during the earliest stages of pregnancy. In order to identify the uterine gene expression modified in the presence of the embryo when compared to the oocyte we used a novel model that eliminated genetic variability. Using laparoscopic insemination one oviduct was inseminated with spermatozoa and the contralateral oviduct was injected with diluent. This model allowed us to obtain samples from the oviduct and the uterine horn containing either embryos or oocytes from the same sow. Uterine horn pig samples containing embryos at blastocyst stage and and their contralateral uterine horn containing oocytes from individual sows were collected for RNA isolation and hybridization on Affymetrix microarrays. Three biological replicates were performed (n= 3 sows) and a total of 6 arrays were used for microarrays study (3 arrays for uterine horn samples containing embryos (inseminated-side) and 3 arrays for samples containing oocytes (non-inseminated side).

2012-04-18 | E-GEOD-33262 | biostudies-arrayexpress

Comparison of L-carnitine treated day 6 in vivo bovine embryos to controls, in both the Jersey and Holstein breeds.

Project description:The decreased rate of pregnancy obtained in cattle using frozen in vitro embryos compared to in vivo embryos has been associated with over-accumulation of intracellular lipid, which causes cell damage during cryopreservation. It is believed that the higher lipid content of blastomeres of bovine embryos produced in vitro results in darker coloured cytoplasm which could be a consequence of impaired mitochondrial function. In this study, L-carnitine was used as a treatment to reduce embryonic lipid content by increasing metabolism in cultured bovine embryos. We have observed previously that in vivo embryos of different dairy breed collected from cows housed and fed under the same conditions differed in lipid content and metabolism. As such, breed effects between Holstein and Jersey were also accounted for general appearance, lipid composition, mitochondrial activity and gene expression. Adding L-carnitine to the embryo culture medium reduced the lipid content in both breeds due to increased mitochondrial activity. L-carnitine vs controls, in 4 replicates for each breed, with dye-swaps.

2014-10-23 | E-GEOD-62595 | biostudies-arrayexpress

Oviduct-Embryo Interactions in Cattle: Two-Way Traffic or a One-Way Street? [RNA-Seq]

Project description:The objective of this study was to examine the effect of the presence of a single or multiple embryo(s) on the transcriptome of the bovine oviduct. In Experiment 1, cyclic (non-bred, n = 6) and pregnant (artificially inseminated, n = 11) heifers were slaughtered on Day 3 after estrus, and the ampulla and isthmic regions of the oviduct ipsilateral to the corpus luteum were separately flushed. Oviductal epithelial cells from the isthmus region, in which all oocytes/embryos were located, were snap-frozen for microarray analysis. In Experiment 2, heifers were divided into cyclic (non-bred, n = 6) or pregnant (multiple embryo transfer, n = 10) groups. In vitro-produced presumptive zygotes were transferred endoscopically to the ipsilateral oviduct on Day 1.5 post estrus (n = 50 zygotes per heifer). Heifers were slaughtered on Day 3 and oviductal isthmus epithelial cells were recovered for RNA sequencing. Microarray analysis in Experiment 1 failed to detect any difference in the transcriptome of the oviductal isthmus induced by the presence of a single embryo. In Experiment 2, following multiple embryo transfer, RNA sequencing revealed 278 differentially expressed genes of which 123 were up- and 155 were down-regulated in pregnant heifers. Most of the down-regulated genes were related to immune function. Transcriptional profiles of oviductal isthmus epithelial cells from cyclic and pregnant heifers were generated by sequencing of total RNA on the Illumina HiSeq 2500 platform

2015-11-04 | E-GEOD-74612 | biostudies-arrayexpress

Identification of genes regulated by early embryo in bovine oviduct epithelial cells

Project description:In this study, we focused on the changes of mRNA expression in bovine oviduct epithelial cells in vitro co-cultured with embryos during preimplantation development in order to identify genes, which might be involved in embryo-maternal communication. For this purpose, we used large-scale cDNA microarray hybridizations to identify the genes differentially regulated in bovine oviduct epithelial cells (Boec) during in vitro culture. The main objective was to identify genes which are differentially expressed due to the presence or absence of bovine embryos on cell monolayers.

2013-02-14 | GSE44283 | GEO

Consequences of conceptus exposure to colony stimulating factor 2 on survival, elongation, interferon-{tau} secretion and gene expression

Project description:Exposure of bovine conceptuses to colony stimulating factor 2 (CSF2) from Day 5 to 7 of development can increase the percent of transferred conceptuses that develop to term. The purpose of this experiment was to understand the mechanism by which CSF2 increases embryonic and fetal survival. Conceptuses were produced in vitro in the presence or absence of 10 ng/ml CSF2 from Day 5 to 7 after insemination, transferred into cows, and flushed from the uterus at Day 15 of pregnancy. There was a tendency (P=0.07) for the proportion of cows with a recovered conceptus to be greater for those receiving a CSF2 treated conceptus (35% for control vs. 66% for CSF2). Antiviral activity in uterine flushings, a measure of the amount of interferon-{tau} (IFNT2) secreted by the conceptus, tended to be greater for cows receiving CSF2-treated conceptuses than for cows receiving control conceptuses. This difference approached significance when only cows with detectable antiviral activity were considered (P=0.07). In addition, CSF2 increased mRNA for IFNT2 (P=0.06) and keratin 18 (P<0.05) in extraembryonic membranes. Among a subset of filamentous conceptuses that were analyzed by microarray hybridization, there was no effect of CSF2 on gene expression in the embryonic disc or extraembryonic membranes. Results suggest that the increase in calving rate caused by CSF2 treatment involves, in part, more extensive development of extraembryonic membranes and capacity of the conceptus to secrete IFNT2 at Day 15 of pregnancy. Experimental conditions: CSF2 treated vs. CSF2 nontreated bovine in vitro produced preimplantation embryos were tranfered to a receptor cow and recovered at Day 15 of embryo development. The embryonic disc (ED) and the trophectoderm (Tr) were used for the expression analysis separately. Biological replicates: CSF2 treated vs. nontreated bovine preimplantation embryos were used in a dye switch two-color microarray experimental design.

2011-12-15 | E-GEOD-26842 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data