Differences in Gene Expression Profiles between the chorion-attached and non-chorion-attached endometrium at the mid-gestation of female rabbit
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ABSTRACT:
PROVIDER: PRJNA641086 | ENA |
REPOSITORIES: ENA
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Project description:The placenta, the complex of fetal membrane (the chorion is attached to the endometrium) and endometrium, is a highly specialized temporary organ responsible for the normal progression of pregnancy in mammals. Therefore, the endometrium was divided into two function regions: chorion-attached (CA) and non-chorion-attached (NCA) region. However, the difference in gene expression profiles between the CA and NCA endometrial tissue of mid-gestation still are unknown. The objective of this study was to reveal gene expressed profiles of the CA and NCA endometrium from the mid-gestational female rabbits, and to screen the differentially expressed genes (DEGs) to imply major physiological events of endometrial at mid-gestation. RNA-seq showed that a total of 12320 genes were co-expressed in the CA and NCA endometrium, and 646 DEGs were identified. Enrichment analysis of the DEGs revealed the top overrepresented gene ontology (GO) term and pathways were related to immune regulation, cellular adhesions. Furthermore, the expression levels of DEGs related to immune regulation of chemokines and their receptors, extracellular matrix (ECM) and Integrin, were compared between the CA and NCA endometrium. Overall, there was hardly difference in the expression levels of immune regulation genes (chemokines and their receptors) between the CA and NCA endometrium, while the concentration of IL-8, IL-6 and IL-1β in the CA endometrium was higher than that in the serum and the NCA endometrium, which suggested immune cytokines were accumulated in the endometrium of maternal-fetal interface. Meanwhile, the expression level of genes related to cellular adhesions (ECM-integrin) in the NCA endometrium was significantly higher than that in the CA endometrium, and high abundance of Integrin β and THBS1 were localized in the luminal epithelium of the NCA endometrium, but not in the CA endometrium. Conclusions: Our study revealed the gene expression profiles of the CA and the NCA endometrium at mid-gestation, and provides an implication of chemokine and ECM-Integrin involved in immune regulation and adhesive barrier at the endometrium.
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Project description:The study allowed for the determination of the mRNAs that were differentially expressed in porcine endometrium on different gestational day and breed. The majority of the mRNAs were differentially expressed during the implantation stage. This study will provide the information to better understanding of the role of these differently expressed mRNAs in the porcine endometrium during pregnancy. Affymetrix mRNA arrays were used to generate mRNA profiles of on the endometrium of Meishan and Yorkshire pigs on days 15 (implantation stage), 26 (post-implantation stage) and 50 (mid-gestation stage) of gestation.
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Project description:Microarray analysis of human fetal microglia from the mid-trimester period was performed. DEGs were identified between early and late stages of the mid-trimester gestation. Genes expressed in the human fetal microglia were also compared with mouse microglia core signature.
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Project description:Affymetrix miRNA arrays were used to generate miRNA profiles of on the endometrium of Meishan and Yorkshire pigs on days 15 (implantation stage), 26 (post-implantation stage) and 50 (mid-gestation stage) of gestation. The study allowed for the determination of the miRNAs that were differentially expressed in porcine endometrium on different gestational day and breed. The majority of the miRNAs were differentially expressed during the implantation stage. This study will provide the information to better understanding of the role miRNAs in the porcine endometrium during pregnancy. the endometrium form different gestational day and breed were collected. In order to determine the miRNA expression profile of these tissue, RNA was extracted, labeled and hybridized on an Affymetrix miRNA array.
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Project description:The study allowed for the determination of the mRNAs that were differentially expressed in porcine endometrium on different gestational day and breed. The majority of the mRNAs were differentially expressed during the implantation stage. This study will provide the information to better understanding of the role of these differently expressed mRNAs in the porcine endometrium during pregnancy. Affymetrix mRNA arrays were used to generate mRNA profiles of on the endometrium of Meishan and Yorkshire pigs on days 15 (implantation stage), 26 (post-implantation stage) and 50 (mid-gestation stage) of gestation. The endometrium from different gestational day and breed were collected. In order to determine the mRNA expression profile of these tissue, RNA was extracted, labeled and hybridized on an Affymetrix mRNA array.
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Project description:MicroRNAs (miRNAs) are critical to proliferation, differentiation, and development. Here, we characterize gene expression in murine Dicer-null adult mesenchymal stem cell lines, a fibroblast cell type. Loss of Dicer leads to de-repression of let-7 targets at levels that exceed 10-100 fold with increases in transcription. Direct and indirect targets of this miRNA belong to a mid-gestation embryonic program that encompasses known oncofetal genes as well as oncogenes not previously associated with an embryonic state. Surprisingly, this mid-gestation program represents a distinct period that occurs between the pluripotent state of the inner cell mass at embryonic day 3.5 and the induction of let-7, upon differentiation, at embryonic day 10.5. Within this mid-gestation program, we characterize the let-7 target Nr6a1, an embryonic transcriptional repressor that regulates gene expression in adult fibroblasts following miRNA loss. In total, let-7 is required for the continual suppression of embryonic gene expression in adult cells, a mechanism that may underlie its tumor suppressive function.
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Project description:MicroRNAs (miRNAs) are critical to proliferation, differentiation, and development. Here, we characterize gene expression in murine Dicer-null adult mesenchymal stem cell lines, a fibroblast cell type. Loss of Dicer leads to de-repression of let-7 targets at levels that exceed 10-100 fold with increases in transcription. Direct and indirect targets of this miRNA belong to a mid-gestation embryonic program that encompasses known oncofetal genes as well as oncogenes not previously associated with an embryonic state. Surprisingly, this mid-gestation program represents a distinct period that occurs between the pluripotent state of the inner cell mass at embryonic day 3.5 and the induction of let-7, upon differentiation, at embryonic day 10.5. Within this mid-gestation program, we characterize the let-7 target Nr6a1, an embryonic transcriptional repressor that regulates gene expression in adult fibroblasts following miRNA loss. In total, let-7 is required for the continual suppression of embryonic gene expression in adult cells, a mechanism that may underlie its tumor suppressive function.
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