FOXA2-regulated genes in the adult mouse uterus
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
SUBMITTER: Thomas Spencer
PROVIDER: E-GEOD-48341 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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Project description:A murine model that mimic the decidualization and regression observed in human was used to investigate the molecular mechanisms underlying the dynamic processes in endometrium. Ovariectomized mice were treated sequentially with steroid hormones and then, to induce decidualization, oil was injected into the uterine lumen. A process similar to menstruation was induced by hormone-withdrawal. The uterine tissues were collected at 4 time-points after the induction of decidualization. Experiment Overall Design: The uterine tissues were collected at 36 (T1), 48 (T2), 60 (T3) and 84 hours (T4) after the last progesterone injection. There are 4 experimental animals for each time-point, and the RNAs collected from animals within the same time-point group were pooled together for Affymetrix microarray analysis using U74Av2 Chips.
2008-06-14 | E-GEOD-6359 | biostudies-arrayexpress
Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study were to compare signals from competent and abnormal human embryos impacted differently on the expression of endometrial receptivity genes in mouse uteri using transcriptome profiling (RNA-seq). Methods: Immature female (25 d C57BL/6) mice were given a hormone treatment of a single dose 1 mg progesterone and 10 mg/kg/day ò-estradiol for a total of 3d to prime the uterus for embryo transfer. The uterine horns of control and study mice were injected with an equal volume (50 ül) of either unconditioned embryo culture medium (ECM), serving as controls, or pooled conditioned media from competent (n = 9) or arresting embryos (n = 18). Uterine mRNA profiles of 25-day-old wild-type (WT) were generated by deep sequencing, in triplicate, using Illumina HiSeq 2000 platform. The sequence reads that passed quality filters were analyzed with the following methods: Bowtie Alignment followed by TopHat (splice juntions mapper) and Cufflinks (transcript abundance). qRTâÂÂPCR validation was performed using SYBR Green assays. Results: Using an optimized data analysis workflow, we mapped about 30 million sequence reads per sample to the mouse genome (build mm9) and identified 16,014 transcripts in the uteri WT and NrlâÂÂ/â mice with BWA workflow and 34,115 transcripts with TopHat workflow. RNA-seq data confirmed stable expression of 25 known housekeeping genes, and 12 of these were validated with qRTâÂÂPCR. RNA-seq data had a linear relationship with qRTâÂÂPCR for more than four orders of magnitude and a goodness of fit (R2) of 0.8798. Approximately 10% of the transcripts showed differential expression between the WT and NrlâÂÂ/â retina, with a fold change âÂÂ¥1.5 and p value <0.05. Altered expression of 25 genes was confirmed with qRTâÂÂPCR, demonstrating the high degree of sensitivity of the RNA-seq method. Hierarchical clustering of differentially expressed genes uncovered several as yet uncharacterized genes that may contribute to retinal function. Data analysis with BWA and TopHat workflows revealed a significant overlap yet provided complementary insights in transcriptome profiling. Conclusions: Our study represents the first detailed analysis of maternal uterine reponse to signals from competent and abnormal human embryos, with biological replicates, generated by RNA-seq technology. Supernatant from competent and abnormal human embryos were flushed into the uterine horns of 25d old C57BL/6 female mice. Uterine mRNA profiles of 21-day old mice were generated by deep sequencing, in triplicate, using Illumina HiSeq 2000 platform (HiSeq).
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2013-09-01 | E-GEOD-49173 | biostudies-arrayexpress
Project description:The great majority of embryos generated by somatic cell nuclear transfer (SCNT) display defined abnormal phenotypes after implantation, such as an increased likelihood of death and abnormal placentation. To gain better insight into the underlying mechanisms, we analyzed genome-wide gene expression profiles of day 6.5 postimplantation mouse embryos cloned from three different cell types (cumulus cells, neonatal Sertoli cells and fibroblasts). The embryos retrieved from the uteri were separated into embryonic (epiblast) and extraembryonic (extraembryonic ectoderm and ectoplacental cone) tissues and were subjected to gene microarray analysis. Genotype- and sex-matched embryos produced by in vitro fertilization (IVF) were used as controls. Principal component analysis revealed that whereas the gene expression patterns in the embryonic tissues varied according to the donor cell type, those in extraembryonic tissues were relatively consistent across all groups. Within each group, the embryonic tissues had more differentially expressed genes (DEGs) (> 2-fold vs. controls) than did the extraembryonic tissues (P < 1.0 M-CM-^W 10M-bM-^@M-^S26). In the embryonic tissues, one of the common abnormalities was upregulation of Dlk1, a paternally imprinted gene. This might be a potential cause of the occasional placenta-only conceptuses seen in SCNT-generated mouse embryos (1M-bM-^@M-^S5% per embryo transferred in our laboratory), because dysregulation of the same gene is known to cause developmental failure of embryos derived from induced pluripotent stem cells. There were also some DEGs in the extraembryonic tissues, which might explain the poor development of SCNT-derived placentas at early stages, although these alterations were not always statistically significant for all three SCNT groups because of variability. These findings suggest that SCNT affects the embryonic and extraembryonic development differentially and might cause further deterioration in the embryonic lineage in a donor cell-specific manner. This could explain donor cell-dependent variations in cloning efficiency using SCNT. Comparative gene expression analyses using post-implanted E6.5 cloned embryos were performed by microarray. Cloned embryos were produced with three different types of donor cells (cumulus cells, neonatal Sertoli cells and fibroblasts). As controls, sex- and genotype-matched embryos produced by in vitro fertilization were used. Each embryos were mechanically dissected into the embryonic and extraembryonic parts at E6.5 and were subjected to gene expression microarray.
2013-09-01 | E-GEOD-49171 | biostudies-arrayexpress