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Gene expression profiling in periimplantation mouse uterine luminal epithelium

ABSTRACT: We used the microarray analysis to determine the differential gene expression profiles in mouse uterine luminal epithelium between preimplantation gestation day 3.5 and postimplantation gestation day 4.5, and investigeate the molecular mechanism of the establishment of uterine receptivity and embryo implantation. Uterine luminal epithelium (LE) is critical for the establishment of uterine receptivity during embryo implantation. Many genes are known to have differential expression in the periimplantation LE but the global profiling of the altered genes in the periimplantation LE is unknown. To fill in this knowledge gap, microarray analysis was performed in gestation day 3.5 (D3.5, preimplantation) and D4.5 (postimplantation) mouse LE from natural pregnancy. There were 382 significantly upregulated and 245 significantly downregulated genes (>2 fold, P<0.05) in the D4.5 LE.

ORGANISM(S): Mus musculus

PROVIDER: GSE44451 | GEO | 2013/02/25

SECONDARY ACCESSION(S): PRJNA190007

REPOSITORIES: GEO

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Gene expression profiling in periimplantation mouse uterine luminal epithelium

Project description:We used the microarray analysis to determine the differential gene expression profiles in mouse uterine luminal epithelium between preimplantation gestation day 3.5 and postimplantation gestation day 4.5, and investigeate the molecular mechanism of the establishment of uterine receptivity and embryo implantation. Uterine luminal epithelium (LE) is critical for the establishment of uterine receptivity during embryo implantation. Many genes are known to have differential expression in the periimplantation LE but the global profiling of the altered genes in the periimplantation LE is unknown. To fill in this knowledge gap, microarray analysis was performed in gestation day 3.5 (D3.5, preimplantation) and D4.5 (postimplantation) mouse LE from natural pregnancy. There were 382 significantly upregulated and 245 significantly downregulated genes (>2 fold, P<0.05) in the D4.5 LE. There are 6 samples. 3 for gestation day 3.5 uterine luminal epithelium, the other 3 for gestation day 4.5 uterine luminal epithelium

2013-02-25 | E-GEOD-44451 | biostudies-arrayexpress

Blastocyst derived signal facilitate the embryo implantation via protein degradation via activating lysosome in the uterine epithelia [RNA-Seq: Epithelium_Igf1r_WT_KO]

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Blastocyst derived signal facilitate the embryo implantation via protein degradation via activating lysosome in the uterine epithelia [RNA-Seq: Epithelium_D4_PsdD4]

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The endometrial trasccriptome transition accompanying acquisition of receptivity to embryo implantation in mice

Project description:Receptivity of the uterus is essential for embryo implantation and progression of pregnancy. Acquisition of receptivity involves major molecular and cellular changes in the endometrial lining of the uterus from its non-receptive state at ovulation, to its receptive state four days later. The precise molecular mechanisms underlying this transition remain to be fully characterized. Here, we aimed to generate a comprehensive profile of the uterine transcriptome in the peri-ovulatory and peri-implantation states, and to define the differences between them, in the mouse. High throughput RNA-sequencing was utilized to identify genes and pathways expressed in the endometrium of C57Bl/6 female mice on day 3.5 post-coitum after mating with BALB/c males, compared to the endometrium of unmated estrous females (n=3-4 biological replicates). RNA-sequencing and analysis using Ingenuity Pathway Analysis software revealed that, compared to the endometrium at estrus, 388 genes were differentially expressed in the endometrium on day 3.5 post-coitum (FDR ≤ 0.05). Several upstream regulators are implicated in the transition to receptivity including several cytokines, steroid hormones, prostaglandin E2, and vascular endothelial growth factor A. The transcriptional changes indicate substantial changes in the uterine immune and vascular systems during the pre-implantation phase, with the functional terms Angiogenesis, Chemotaxis, and Lymphangiogenesis predominating. This analysis confirms that the transcriptome of a receptive uterus is vastly different to the non-receptive uterus and identifies several genes and regulatory pathways not previously associated with implantation. This dataset will serve as a valuable tool and resource for future research on the molecular mechanisms of uterine receptivity.

2023-09-12 | GSE223136 | GEO

Uterine glands impact uterine receptivity, luminal fluid homeostasis and blastocyst implantation

Project description:Uterine glands are essential for pregnancy in mice and likely humans, because they secrete or transport bioactive substances that regulate uterine receptivity for blastocyst implantation. In mice, the uterus becomes receptive to blastocyst implantation on day 4, but is refractory by day 5. Here, blastocysts could be recovered from progesterone-induced uterine gland (PUGKO) but not wildtype (WT) mice on day 5 post-mating. Anti-adhesive Muc1 protein and microvilli were present on the luminal epithelium of PUGKO but not WT uteri. A number of known uterine receptivity genes and gland-specific genes were altered in the PUGKO uterus. Next, the uterus and uterine luminal fluid (ULF) were obtained from WT and PUGKO mice on day 3, 4 and 5. Transcriptome analysis revealed that 580 genes were decreased in the PUGKO uterus, however ULF secrotome analysis revealed that many proteins and several amino acids were increased in the PUGKO ULF. Of note, many proteins encoded by many gland-specific genes were not identified in the ULF of WT mice. These results support the ideas that uterine glands secrete factors that regulate ULF homeostasis and interact with other cell types in the uterus to influence uterine receptivity and blastocyst implantation for the establishment of pregnancy.

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The analysis of the α2,6-sialylated proteins in endometrium from porcine gestational day 15 by LC-MS/MS

Project description:Implantation is the attachment of embryo in the endometrium. Failure in implantation is a major cause of early pregnancy loss. During implantation, the temporal uterine lumen closure can help embryo attach to the uterus. In pigs, extending of endometrial folds to form interlocking finger-like projections is a main cause leads to uterine lumen closure during attachment time, but the underlying mechanisms are largely unknown. Our data reveal that pig uterine luminal epithelium (LE) migrate in coordinated groups during extending of endometrial folds. Moreover, the MALDI-TOF MS based N-glycomic characterization of porcine endometrium revealed α2,6-linked sialic acid are highly expressed in pig uterine LE during extending of endometrial folds. To investigated the mechanisms by which α2,6-sialylated proteins in formation of the endometrial folding during implantation in pigs, the α2,6-sialylated proteins in pig uterine LE were characterized by proteomic analysis and those proteins that are involved in cell adhesion, such as E-cadherin, were detected. Finally, our in vivo and in vitro data show that α2,6-sialylation of E-cadherin occurs in accompany with collective epithelial migration. The results provide new insight into the mechanism of pig implantation by identifying that α2,6-sialylation of cell adhesion molecules may participate in formation of extending of endometrial folds through promoting of collective migration of uterine LE.

2022-02-17 | PXD027571 | Pride

Metabolic Changes of Maternal Uterine Fluid, Uterus, and Plasma during the Peri-implantation Period of Early Pregnancy in Mice

Project description:Embryo implantation is a complex process which involves biochemical and physiological interactions between an implantation-competent blastocyst and a receptive uterus. However, the exact biochemical changes of uterine fluid, uterus, and plasma during peri-implantation remain unclear. This study aims to characterize the biochemical and metabolic changes that occur during the peri-implantation period of early pregnancy, using mice as an animal model. Gas chromatography-mass spectrometry was used to analyze the metabolite profiles of the uterus, uterine fluid, and maternal plasma at pre-implantation and implantation. The multivariate analyses, ANOVA and Tukey's HSD test, were applied to detect significant changes in metabolites and metabolic pathways. The metabolic networks were reconstructed in silico based on the identified metabolites and KEGG metabolic framework. Between pre-implantation day 1 and day 4, dramatic metabolic changes were observed in the uterine fluid that could be important for blastocyst development and protection against the harsh uterine environment. Palmitoleic acid, fumaric acid, and glutaric acid changed levels at day 4 in the uterus, suggesting that they may be associated with endometrial receptivity. Both the uterus and maternal plasma showed profound changes in cellular metabolism at the early implantation period, including upregulation of branched-chain amino acids and intermediates of one-carbon metabolism, an upregulation of glyoxylate and dicarboxylate metabolism, and downregulation of aerobic respiration; all of which could be involved in the regulation of the maternal-fetal interface, alternative nutrient utilization, and energy preservation for implantation as well as later placentation and fetal development to ensure successful embryo implantation.

2020-05-04 | MTBLS627 | MetaboLights

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Project description:Female mice exposed neonatally to the phytoestrogen genistein (GEN) at doses similar to those in infants consuming soy-based infant formulas are infertile due in part to uterine implantation defects. To determine the mechanisms by which neonatal GEN exposure causes implantation defects, female mice were exposed to vehicle (corn oil) or GEN in corn oil (50 mg/kg/day) on postnatal days (PND) 1-5. Uterine tissues were collected during early gestation for microarray analysis; gestation day 1.5 (GD1.5), GD3.5, GD4.5 and GD5.5. We conclude that neonatal GEN exposure disrupts expression of genes important for uterine development, causing posteriorization and diminished gland function during pregnancy that together cause implantation failure.

2020-01-24 | GSE138500 | GEO

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Project description:The change in gene expression on the 8th day of gestation was investigated using DNA microarrays. Uterine gene expression of implantation sites was analysed in female mice.

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