Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

CSF2 x gender interactions on the transcriptome of Day 15 bovine extra-embryonic membrane

ABSTRACT: We aimed to study the effects of CSF2 treatment on the transcriptome of the Day 15 female and male embryo. Within the raw files, channel 1= Cy3 and channel 2= Cy5 Transcriptional profiling of bovine extra-embryonic membrane at Day 15 post-insemination produced by IVF. Oocytes were matured and fertilized in vitro using a single Holstein bull. After 5 days in vitro culture, the embryos were either treated with 10 ng/ml bovine recombinant CSF2 or the Control (DPBS/BSA) until Day 7. At Day 7, the embryos were transferred into recipients. At day 15 following insemination, embryos were flushed and collected for total RNA and gDNA extraction. The gender of the embryos were determined by PCR prior to microarray analysis. CSF2 males were compared to Control males while CSF2 females were compared to Control females. Control females were also compared to control males.

ORGANISM(S): Bos taurus

SUBMITTER: Kyle Dobbs

PROVIDER: E-GEOD-55364 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Sexual dimorphism in developmental programming of the bovine preimplantation embryo caused by colony-stimulating factor 2.

Dobbs Kyle B KB Gagné Dominic D Fournier Eric E Dufort Isabelle I Robert Claude C Block Jeremy J Sirard Marc-André MA Bonilla Luciano L Ealy Alan D AD Loureiro Barbara B Hansen Peter J PJ

Biology of reproduction 20140730 3

Physiology of the adult can be modified by alterations in prenatal development driven by the maternal environment. Developmental programming, which can be established before the embryo implants in the uterus, can affect females differently than males. The mechanism by which sex-specific developmental programming is established is not known. Here we present evidence that maternal regulatory signals change female embryos differently than male embryos. In particular, actions of the maternally deriv ...[more]

PMID: 25078682

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Project description:The main objective of superovulatory treatment is to achieve multiple ovulations and produce multiple embryos. The technique is intended to rescue a cohort of follicles within a follicular wave that would otherwise regress. Superstimulory treatments change the intra-follicular and systemic hormonal milieu, but it is not clear how and to what extent treatment alters gene expression of follicular cells. In this study, a genome-wide bovine oligo-microarray was used to compare the gene expression of granulosa cells from post-LH preovulatory dominant follicle with those from follicles of the same status after superstimulatory treatment. Cows were allocated randomly to two groups (superstimulation group and control group, n=6 cows per group). A new follicular wave was induced by transvaginal ultrasound-guided ablation of follicles ?5 mm in diameter, and a progesterone-releasing device (CIDR) was placed in vagina. The superstimulation group was given eight doses of 25 mg FSH im at 12-h intervals starting from the day of wave emergence (Day 0), whereas the control group was not given any FSH treatment. Both groups were given prostaglandin F2? im twice, 12 h apart, on Day 3 and the CIDR was removed at the second injection; 25 mg pLH was given im 24 h after CIDR removal, and cows were ovariectomized 24 h later. Granulosa cells were collected for RNA extraction, amplification and microarray hybridization. To translate microarray results to a physiological context, a list of differentially expressed transcripts were biologically annotated. A total of 190 genes were down-regulated and 280 genes were up-regulated in superstimulated group when compared with the reference (non-superstimulated control) group. straight comparison of superstimulation group (the treatment; group 1) versus non-superstimulated ( the reference; group 4) using 3 different aninals (biological replicates) in each group and performed dye swap. For example on array 1: group1 cow 1 versus group 4 cow 1 (cy3 vs cy5) and on array 4 is the dey swap group 4 cow 1 versus group 1 cow 1 (cy3 vs cy5).

Dataset Information

CSF2 x gender interactions on the transcriptome of Day 15 bovine extra-embryonic membrane

Publications

Sexual dimorphism in developmental programming of the bovine preimplantation embryo caused by colony-stimulating factor 2.

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