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Gene expression changes in response to doxycyline-induced expression of proinsulin (C96Y)-GFP in an INS-1 insulinoma cell line

ABSTRACT: A doxycyline-inducible INS-1 insulinoma cell line expressing proinsulin (C96Y)-GFP was engineered. Addition of doxycyline causes the production of the proinsulin (C96Y)-GFP, which is retained in the endoplasmic reticulum. This study analyzes the gene expression changes that occur after doxycyline-induced expression of proinsulin (C96Y)-GFP for 24h, 48h and 5 days. Expression changes were compared between control un-induced cells and cells treated with doxycyline. Three replicates (experiments) were performed for each time point.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE22537 | GEO | 2010/06/24

SECONDARY ACCESSION(S): PRJNA128457

REPOSITORIES: GEO

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Gene expression changes in response to doxycyline-induced expression of proinsulin (C96Y)-GFP in an INS-1 insulinoma cell line

Project description:A doxycyline-inducible INS-1 insulinoma cell line expressing proinsulin (C96Y)-GFP was engineered. Addition of doxycyline causes the production of the proinsulin (C96Y)-GFP, which is retained in the endoplasmic reticulum. This study analyzes the gene expression changes that occur after doxycyline-induced expression of proinsulin (C96Y)-GFP for 24h, 48h and 5 days. Expression changes were compared between control un-induced cells and cells treated with doxycyline. Three replicates (experiments) were performed for each time point. Stable mutant insulin-expressing insulinoma cells were treated or not with doxycyline for 24h, 48h or 5 days and RNA was extracted for expression analysis.

2010-07-29 | E-GEOD-22537 | biostudies-arrayexpress

Expression data of rat insulinoma cells induced with ER stress +/- IRE1 inhibitor treatment

Project description:The Akita mutation (C96Y) in the insulin gene results in early onset diabetes in both humans and mice. Expression of the mutant proinsulin (C96Y) causes endoplasmic reticulum (ER) stress in pancreatic ?-cells and consequently the cell activates the unfolded protein response (UPR). Since the proinsulin is terminally misfolded however, the ER stress is irremediable and chronic activation of the UPR eventually activates apoptosis in the cell population. We used microarray gene expression arrays to analyze the IRE1-dependent activation of genes in response to misfolded proinsulin expression in an inducible mutant proinsulin (C96Y) insulinoma cell line by inhibiting the IRE1 endoribonucleas activity with a specific inhibitor, 4u8c. Insulinoma cells with doxycycline inducible C96Y-proinsulin expression were either untreated, treated with doxycycline alone or treated with dox and 4u8c. This was done with two biological replicates.

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Transcription profiling of rat insulinoma INS-1 cell lines (FLP-In T-REx)

Project description:Four rat insulinoma cell lines (INS-1) were generated that contain a FRT site for FLP recombinase mediated site specific integration of specific genes. In addition, the cell lines contain the tetracycline repressor allowing tetracycline (tet) induction of the introduced gene. By comparing the gene expression profiles of uninduced and tet-induced cells, target genes of introduced transcription factors or other signal tranduction molecules can be identified. The expression profiles of the parental INS-1 cell line and the four derivatives were determined on a RAE230A array, showing that the highly differentiated phenotype of the parental cell line was maintained in the clones.

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Transcription profiling of rat insulinoma line INS-1 to identify targets of HNF1b mutants in INS-1

Project description:A rat insulinoma cell line (INS-1) was generated that contains a FRT site for FLP recombinase mediated site specific integration of specific genes. In addition, the line contains the tetracycline repressor allowing tetracycline (tet) induction of the introduced gene. By comparing the gene expression profiles of uninduced and tet-induced cells, target genes of introduced transcription factors HNF1b and HNF1b mutants were identified. Two different clones containing the same transcription factor were analyzed in the non-induced and tet-induced (24 h) state.

2008-06-11 | E-GEOD-1590 | biostudies-arrayexpress

Rattus norvegicus

Project description:Gene expression changes in response to doxycyline-induced expression of proinsulin (C96Y)-GFP in an INS-1 insulinoma cell line

| PRJNA128457 | ENA

Expression data of rat insulinoma cells induced with ER stress +/- IRE1 inhibitor treatment

Project description:The Akita mutation (C96Y) in the insulin gene results in early onset diabetes in both humans and mice. Expression of the mutant proinsulin (C96Y) causes endoplasmic reticulum (ER) stress in pancreatic -cells and consequently the cell activates the unfolded protein response (UPR). Since the proinsulin is terminally misfolded however, the ER stress is irremediable and chronic activation of the UPR eventually activates apoptosis in the cell population. We used microarray gene expression arrays to analyze the IRE1-dependent activation of genes in response to misfolded proinsulin expression in an inducible mutant proinsulin (C96Y) insulinoma cell line by inhibiting the IRE1 endoribonucleas activity with a specific inhibitor, 4u8c.

2014-07-16 | GSE58866 | GEO

Gene expression in response to short and long term cAMP stimulation in the INS-1 insulinoma cell line

2011-11-22 | GSE31736 | GEO

Time course treatment with Palmitate and thapsigargin of insulinoma INS-1E cells

Project description:Time course treatment with 0.4 mM Palmitate and 200 nM thapsigargin of insulinoma INS-1E cells. Timepoints; 0, 4, 16 and 24h in biological duplicates within an iTRAQ 8 set for palmitate and thapsigargin, respectively.

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Expression data from rat insulinoma INS-1 cells under glucotoxic condition

Project description:Expression data from rat insulinoma INS-1 cells under glucotoxic condition

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Gene expression in response to short and long term cAMP stimulation in the INS-1 insulinoma cell line

Project description:Long term exposure to incretin hormones is known to have salutory effects on beta cell function and viability. While short-term cAMP induction is known to have a signature CREB-CRTC target gene response, the long-term effects of cAMP on beta cell gene expression are less well understood. We used rat microarray analysis to compare the genome-wide gene expression response to short-term (2 hours) and long-term (16 hours) stimulations of the cAMP agonist forskolin in INS-1 insulinoma cells. INS-1 cells were exposed to forskolin for 2 or 16 hours in RPMI medium containing 10% serum. Control samples wer incubated for the same time without forskolin. Extracted RNA was used for hybridization on Affymetrix rat 1.0 st gene arrays.

2011-11-22 | E-GEOD-31736 | biostudies-arrayexpress

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