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The transcriptomic profile of porcine anterior pituitary cells is influenced by adiponectin

ABSTRACT: Adiponectin is thought to be involved in the regulation of metabolic homeostasis and reproductive processes. Adiponectin controls carbohydrate and lipid metabolism by regulating the fatty acid oxidation process, increasing insulin sensitivity and decreasing plasma triglyceride levels. Adiponectin also plays an important role in the modulation of female reproductive functions, both directly and by influencing the secretory functions of the higher branches of the hypothalamic-pituitary-gonadal axis. The main aim of this study was to determine the effect of adiponectin on global gene expression and on differentially expressed genes (DE-genes) under the influence of the studied hormone in porcine anterior pituitary (AP) cells.

ORGANISM(S): Sus scrofa domesticus Sus scrofa

PROVIDER: GSE122311 | GEO | 2018/11/09

REPOSITORIES: GEO

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The transcriptomic profile of porcine anterior pituitary cells is influenced by adiponectin

Project description:The transcriptomic profile of porcine anterior pituitary cells is influenced by adiponectin

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VISFATIN (NAMPT) AFFECTS GLOBAL GENE EXPRESSION IN PORCINE ANTERIOR PITUITARY CELLS DURING THE MID-LUTEAL PHASE OF THE OESTROUS CYCLE

Project description:Pituitary belongs to a most important endocrine glands which takes part in the regulation of reproductive functions. The proper functioning of this intermediary between the central nervous system and the target tissues of the reproductive system ensures the proper course of the estrous cycle and affects the female's reproductive potential. It is believed that visfatin, a hormone belonging to the adipokine family, may be responsible for the control of reproductive functions in response to the actual metabolic state of female. Herein we verified hypothesis assuming the modulatory effect of visfatin on the anterior pituitary transcriptome during the mid-luteal phase of the oestrous cycle. We analyzed samples obtained from 5 individuals (n=5). After the enzymatic tissue digestion with the use collagenase V and pancreatin cells were divided for two groups: controls [without treatment] and visfatin (100 ng/mL) treated ones. In vitro cell cultures were conducted for 24 hours.

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2019-01-02 | PXD005819 | Pride

Transcriptomic analysis of the porcine anterior pituitary gland during the peri-implantation period

Project description:In pigs, the peri-implantation period is recognized as determinant of successful reproduction, and it is controlled by neuroendocrinal interactions among signals originating from the female hypothalamic-pituitary-ovarian axis, uterus, and developing embryo. The transcriptomic activity of the pituitary gland may influence reproductive processes occurring in pigs during the peri-implantation period. The aim of this study was to determine alternations in gene expression in the porcine pituitary gland during the peri-implantation period (days 15-16 of pregnancy) in comparison with that during the respective days of the estrous cycle using a microarray approach.

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The in vitro influence of adiponectin on the porcine endometrium on days 15 to 16 of gestation.

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Transcriptome profile of the anterior pituitary gland in pigs during maternal recognition of pregnancy

Project description:The knowledge regarding the reproductive-status-related changes occurring within the transcriptome of the porcine pituitary is limited. This study aimed to compare pituitary gland gene expression profiles of pigs during the maternal recognition of pregnancy period (days 12-13 of pregnancy) with pigs during the respective days of the estrous cycle using a microarray approach. Analysis indicated 482 differentially expressed genes (DEGs) with a FC ≥ 1.5 (p < 0.05) in the pituitary of pregnant vs. estrous-cyclic pigs. Among them, 68 were up-regulated and 414 were down-regulated. The evaluated DEGs were annotated to 39 gene ontology (GO) biological processes terms, 13 GO cellular components terms, and 10 GO molecular function terms. Among the evaluated DEGs were selected genes coding for proteins potentially involved in the regulation of early pregnancy in pigs and used for gene interaction analysis and validation of microarray results. Analysis of the relationships among DEGs during maternal recognition of pregnancy showed that some of them are connected with, i.e., TGFβ signaling pathway, follicle-stimulating hormone, prolactin, and growth hormone synthesis or activity, adipocytokines responsivity, angiogenesis, immune response, prostaglandin synthesis and inter-pituitary cell to cell interactions. The findings expand the knowledge regarding the molecular mechanisms appearing in the pituitary in pigs during the maternal recognition period of pregnancy.

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Control of the anterior pituitary cell lineage regulator POU1F1 by the stem cell determinant Musashi

Project description:The high energetic cost of reproduction requires that female fertility be closely linked to metabolic status. However, the mechanisms by which the metabolic and reproductive systems communicate is still largely undefined. We have previously reported that signaling through the major metabolic cytokine leptin controls levels of the pituitary maturation determinant POU1F1 (also referred to as Pit1) that is required for optimal reproductive function. These studies further indicated that leptin increases POU1F1levels in females by promoting Pou1f1 mRNA translation, although the mechanism ofPou1f1 mRNA translation control is unknown. In this study, we report that the stem cell marker and mRNA translational control protein, Musashi, represses translation of the Pou1f1 mRNA. In FACS-sorted purified female somatotropes, Msi1 mRNA and Musashi protein levels are increased in the mouse model that lacks leptin signaling (Gh-CRE leprLepr-null), coincident with the observed attenuation of Pou1f1 mRNA translation. Single-cell RNA sequencing of pituitary cells from control female animals indicates that Msi1 and Pou1f1 mRNAs are co-expressed in Gh-expressing cells and immunocytochemistry analyses of these cells confirms that Musashi protein is present in the GH-containing somatotrope population. We demonstrate that Musashi interacts directly with the Pou1f1 mRNA 3’ UTR and exerts translational repression of a Pou1f1 mRNA translation reporter in vitro, and interacts with the Pou1f1 mRNA in vivo. These findings indicate a critical role for Musashi-mediated mRNA translational regulation in the coordination between metabolic status and the maturation of pituitary somatotropes that is required for optimized reproductive function .

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Transcription profiling of rat anterior pituitary gland response to diethylstilbestrol

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2008-06-12 | E-GEOD-4083 | biostudies-arrayexpress

Cell Type- and Sex-Dependent Transcriptome Profiles of Rat Anterior Pituitary Cells

Project description:Understanding of physiology and pathology of an organ composed of variety of cell populations depends critically on genome-wide information on each cell type. Here, we report single-cell transcriptome profiling of over 6800 freshly dispersed anterior pituitary cells from postpubertal male and female rats. Six pituitary-specific cell types were identified based on known marker genes and characterized: folliculostellate cells and hormone producing corticotrophs, gonadotrophs, thyrotrophs, somatotrophs, and lactotrophs. Also identified were endothelial and blood cells from the pituitary capillary network. The expression of numerous developmental and neuroendocrine marker genes in both folliculostellate and hormone producing cells supports that they have a common origin. For several genes, the validity of transcriptome analysis was confirmed by qRT-PCR and single cell immunocytochemistry. Folliculostellate cells exhibit impressive transcriptome diversity, indicating their major roles in production of endogenous ligands and detoxification enzymes, and organization of extracellular matrix. Transcriptome profiles of hormone producing cells also indicate contributions toward those functions, while also clearly demonstrating their endocrine function. This survey highlights many novel genetic markers contributing to pituitary cell type identity, sexual dimorphism, and function and points to relationships between hormone producing and folliculostellate cells.

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