Quantitative Analysis of Wild Type worms and vit-5 RNAi worms Transcriptomes
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ABSTRACT:
ORGANISM(S): Caenorhabditis elegans
PROVIDER: GSE182330 | GEO | 2021/08/20
REPOSITORIES: GEO
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Project description:Quantitative Analysis of Wild Type worms and vit-5 RNAi worms Transcriptomes
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Project description:We have discovered a novel gene, mekk-3/idr-1, which when knocked down by RNAi dramatically increases life span. In order to understand how this gene works, we performed microarray analysis to compare the gene expression profiles of control and mekk-3/idr-1 RNAi-grown worms.
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Project description:C. elegans totalRNA profiles of worms treated with RNAi for different Integrator complex genes or L4440 (Control). Worms were grown at 15ºC and samples were taken six days after silencing
2019-02-04 | GSE111083 | GEO
Project description:In order to assist in the identification of possible endocrine disrupting chemicals (EDC) in groundwater, we are developing Caenorhabolitis elegans as a high throughput bioassay system in which responses to EDC may be detected by gene expression using DNA microarray analysis. As a first step we examined gene expression patterns and vitellogenin responses of this organism to vertebrate steroids, in liquid culture. Western blotting showed the expected number and size of vitellogenin translation products after estrogen exposure. At 10(-9) M, vitellogenin decreased, but at 10(-7) and 10(-5), vitellogenin was increased. Testosterone (10(-5) M) increased the synthesis of vitellogenin, but progesterone-treated cultures (10(-5) M) had less vitellogenin. Using DNA microarray analysis, we examined the pattern of gene expression after progesterone (10(-5), 10(-7), and 10(-9) M), estrogen (10(-5) M), and testosterone (10(-9) M) exposure, with special attention to the traditional biomarker genes used in environmental studies [vitellogenin, cytochrome P450 (CYP), glutathione s-transferase (GST), metallothionein (MT), and heat shock proteins (HSP)]. GST and P450 genes were affected by estrogen (10(-5) M) and progesterone (10(-5) and 10(-7) M) treatments. For vitellogenin genes, estrogen treatment (10(-5) M) caused overexpression of the vit-2 and vit-6 genes (2.68 and 3.25 times, respectively). After progesterone treatment (10(-7) M), the vit-5 and vit-6 were down-regulated and vit-1 up-regulated (3.59-fold). Concentrations of testosterone and progesterone at 10(-9) M did not influence the expression of the vit, CYP, or GST genes. Although the analysis is incomplete, and low doses and combinations of EDC need to be tested, these preliminary results indicate C. elegans may be a useful laboratory and field model for screening EDC.
2005-06-29 | E-SMDB-2701 | biostudies-arrayexpress
Project description:Mitochondria are the central hub of energy and metabolism of the cell,acting as one of the most important organelles of living cells.Under mitochondrial stresses, cells will trigger mitochondrial unfolded protein response (UPRmt) to maintain mitochondrial homeostasis.We have verified that splicing facotrs are required for the activation of UPRmt.Knocking down of splicing fator prp-19 could supresse UPRmt activation.We analysis the differencial alternative splicing of worms on L4440 RNAi or prp-19 RNAi and untreated or treated with atp-2 RNAi, we found that inhibition of prp-19 interrupts splicing homeostasis of c.elegans.
2022-12-31 | GSE191294 | GEO
Project description:In order to assist in the identification of possible endocrine disrupting chemicals (EDC) in groundwater, we are developing Caenorhabolitis elegans as a high throughput bioassay system in which responses to EDC may be detected by gene expression using DNA microarray analysis. As a first step we examined gene expression patterns and vitellogenin responses of this organism to vertebrate steroids, in liquid culture. Western blotting showed the expected number and size of vitellogenin translation products after estrogen exposure. At 10(-9) M, vitellogenin decreased, but at 10(-7) and 10(-5), vitellogenin was increased. Testosterone (10(-5) M) increased the synthesis of vitellogenin, but progesterone-treated cultures (10(-5) M) had less vitellogenin. Using DNA microarray analysis, we examined the pattern of gene expression after progesterone (10(-5), 10(-7), and 10(-9) M), estrogen (10(-5) M), and testosterone (10(-9) M) exposure, with special attention to the traditional biomarker genes used in environmental studies [vitellogenin, cytochrome P450 (CYP), glutathione s-transferase (GST), metallothionein (MT), and heat shock proteins (HSP)]. GST and P450 genes were affected by estrogen (10(-5) M) and progesterone (10(-5) and 10(-7) M) treatments. For vitellogenin genes, estrogen treatment (10(-5) M) caused overexpression of the vit-2 and vit-6 genes (2.68 and 3.25 times, respectively). After progesterone treatment (10(-7) M), the vit-5 and vit-6 were down-regulated and vit-1 up-regulated (3.59-fold). Concentrations of testosterone and progesterone at 10(-9) M did not influence the expression of the vit, CYP, or GST genes. Although the analysis is incomplete, and low doses and combinations of EDC need to be tested, these preliminary results indicate C. elegans may be a useful laboratory and field model for screening EDC. A compound treatment design type is where the response to administration of a compound or chemical (including biological compounds such as hormones) is assayed. Keywords: compound_treatment_design
2005-07-21 | GSE2970 | GEO
Project description:Revealing the reproductive mechanism of schistosomes will help to control this disease. In this study, the proteomic profiles of single-sex infected female (SF) worms and bisexual infected mature female (MF) worms of Schistosoma japonicum at 18, 21, 23 and 25 days post infection (dpi) were identified with isobaric tags for relative and absolute quantitation-coupled liquid chromatography-tandem mass spectrometry. Differentially expressed proteins (DEPs) were subsequently used for bioinformatic analysis.
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Project description:Constitutive knockdown of Zeus gene and expression profiling of male wholebody and reproductive organs two-color, hybridize Zeus-RNAi and Caf40-RNAi against wildtype with male wholebody or reproductive organ samples
2012-04-30 | E-GEOD-36574 | biostudies-arrayexpress
Project description:To clarify the mechanisms of innate immune responses mediated by epithelial barrier disruption. Reveal the host’s broad transcriptional response to P. aeruginosa infection during disruption of the intestinal barrier. We used RNA-Seq analysis to study the transcriptomic profiles of wt worms were exposed to either P. aeruginosa PA14 or E. coli OP50 for 24 hours, and the transcriptomic profiles of egl-44(MT2247) mutants fed E. coli OP50 for 24 hours. Differential expression analysis was performed by comparing wt worms exposed to PA14 versus wt worms exposed to E. coli OP50, and egl-44(MT2247) mutants fed E. coli OP50 versus WT worms fed E. coli OP50.
2018-10-11 | GSE121091 | GEO
Project description:The present study reports the temporal transcriptional response of THP-1 cells to physiological levels (100 μM) of vit C treatment. An extensive modulation of gene expression occurs from early to late time-points, which is reflected in a gamut of functional responses regulated by vit C, as determined by enrichment analysis. The study reveals the pleiotropic activity of vit C with diverse implications on biological processes. vit C mediates responses that encompass a range of cellular processes, and span regulation of gene expression, signal transduction, cell cycle, immune system, cAMP metabolic process and signaling and ion homeostasis. Thus vit C modulates a plethora of physiological functions, that emphasize its key role in maintaining equilibrium.
2016-02-15 | GSE73421 | GEO