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Knockdown of transcription factor Creb3l1 in anterior pituitary mouse corticotroph cell line AtT20

ABSTRACT: Knockdown of transcription factor Creb3l1 in anterior pituitary mouse corticotroph cell line AtT20

PROVIDER: PRJNA622706 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11470700_1.fastq.gz	Fastqsanger.gz
	SRR11470700_2.fastq.gz	Fastqsanger.gz
	SRR11470701_1.fastq.gz	Fastqsanger.gz
	SRR11470701_2.fastq.gz	Fastqsanger.gz
	SRR11470702_1.fastq.gz	Fastqsanger.gz

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Knockdown of transcription factor Creb3l1 in anterior pituitary mouse corticotroph cell line AtT20

Project description:Transcription factor Creb3l1 is a non-classical ER stress molecule that is emerging as an important component for cellular homeostasis, particularly within cell-types with high peptide secretory capabilities. We have previously shown that Creb3l1 serves an important role in body fluid homeostasis through its transcriptional control of the gene coding for antidiuretic hormone arginine vasopressin in the neuropeptide rich magnocellular neurons of the supraoptic nucleus. To identify other genes regulated by transcription factor Creb3l1 in secretory cells, we performed RNA-sequencing of Creb3l1 knockdown anterior pituitary mouse corticotroph cell line AtT20.

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Microarray analysis of an RXR agonist HX630 regulated gene expression in murine pituitary corticotroph tumor cells (AtT20 cell)

Project description:To gain insight into the functional mechanisms of an RXR agonist HX630 in murine pituitary corticotroph tumor cells (AtT20 cell), especially concerning cell proliferation and apoptosis, we conducted whole genome microarray analysis to identify gene expression patterns, networks, and pathways in AtT20 cells treated with HX630 at 10 μM for 48 hr. 2,173 up-regulated and 3,169 down-regulated genes were identified that demonstrated fold-changes of at least 1.5 and a P-value <0.01 in AtT20 cells with HX630 at 10 uM compared with control. Both the up- and down-regulated differentially expressed genes were submitted to IPA, which groups significant genes according to biological processes in which they function, and identifies various functions, networks, and pathways. These analyses showed that the categories of the biological functions and diseases significantly regulated by HX630 were associated with cell death, growth and cancer. Furthermore, it was identified that a gene network associated with caspase 3 was significantly induced by HX630.These data indicated that HX630 induced cell death and suppressed cell growth in AtT20 cells, consistent with the results of in vitro studies.

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Microarray analysis of an RXR agonist HX630 regulated gene expression in murine pituitary corticotroph tumor cells (AtT20 cell)

Project description:To gain insight into the functional mechanisms of an RXR agonist HX630 in murine pituitary corticotroph tumor cells (AtT20 cell), especially concerning cell proliferation and apoptosis, we conducted whole genome microarray analysis to identify gene expression patterns, networks, and pathways in AtT20 cells treated with HX630 at 10 M-NM-<M for 48 hr. 2,173 up-regulated and 3,169 down-regulated genes were identified that demonstrated fold-changes of at least 1.5 and a P-value <0.01 in AtT20 cells with HX630 at 10 uM compared with control. Both the up- and down-regulated differentially expressed genes were submitted to IPA, which groups significant genes according to biological processes in which they function, and identifies various functions, networks, and pathways. These analyses showed that the categories of the biological functions and diseases significantly regulated by HX630 were associated with cell death, growth and cancer. Furthermore, it was identified that a gene network associated with caspase 3 was significantly induced by HX630.These data indicated that HX630 induced cell death and suppressed cell growth in AtT20 cells, consistent with the results of in vitro studies. AtT20 cells grown to 50 % confluence in regular medium in 12-multiwell plates were incubated either without or with HX630 at 10 M-NM-<M in DMEM supplemented with 1 % stripped FBS media for 48 hr. The cells were then lysed and their total RNAs were isolated for microarray analysis.

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Project description:The regulation of pituitary function via the hypothalamus and via intra-pituitary connections represents a complex system. Though hormones secreted from the pituitary glands have been well studied, overall information of proteins expressed in the pituitary glands is very limited. Protein expression profiling of normal pituitary tissue may lead to discovery of novel proteins playing an important role in the physiology of pituitary glands and can lead to better understanding of pituitary gland diseases. We aimed to carry out systematic proteomic profiling of adenohypophysis from human pituitary glands using high-resolution Fourier transform mass spectrometer. A total of 2,175 proteins were identified in this study of which, 105 proteins were identified for the first time as compared to high throughput proteomic-based studies from human pituitary glands. The comprehensive list of proteins identified in this study will facilitate the better understanding the role of this important gland in health and disease.

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