Baleen whales
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA389516 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5665640_1.fastq.gz | Fastqsanger.gz | |||
| SRR5665640_2.fastq.gz | Fastqsanger.gz | |||
| SRR5665641_1.fastq.gz | Fastqsanger.gz | |||
| SRR5665641_2.fastq.gz | Fastqsanger.gz | |||
| SRR5665642_1.fastq.gz | Fastqsanger.gz |
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Project description:An 8X15k oligonucleotide microarray was developed consisting of 2334 E. glacialis probes and 2166 Tursiops truncatus probes and used to measure the transcriptome level effects of right whale kidney fibroblast cells exposed to cadmium. Cells were exposed to three concentrations of cadmium chloride (CdCl2) for three exposure times. Cells exposed to 10-6M CdCl2 for 4 hours and 24 hours showed upregulated genes involved in protection from metal toxicity, oxidative stress, protein renaturation, apoptosis inhibition, and several regulators of cellular processes. Downregulated genes represented a suite of functions including cell proliferation, transcription regulation, actin polymerization, and stress fiber synthesis. The collection of differentially expressed genes in this study support proposed mechanisms of cadmium-induced apoptosis such as mitochondrial membrane potential collapse, reactive oxygen species (ROS) influx, and cell cycle arrest. The results confirm the right whale microarray as a reproducible tool in measuring differentiated gene expression and should be a valuable asset for transcriptome analysis of other baleen whales and potential health assessment protocols.
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Project description:An 8X15k oligonucleotide microarray was developed consisting of 2334 E. glacialis probes and 2166 Tursiops truncatus probes and used to measure the transcriptome level effects of right whale kidney fibroblast cells exposed to cadmium. Cells were exposed to three concentrations of cadmium chloride (CdCl2) for three exposure times. Cells exposed to 10-6M CdCl2 for 4 hours and 24 hours showed upregulated genes involved in protection from metal toxicity, oxidative stress, protein renaturation, apoptosis inhibition, and several regulators of cellular processes. Downregulated genes represented a suite of functions including cell proliferation, transcription regulation, actin polymerization, and stress fiber synthesis. The collection of differentially expressed genes in this study support proposed mechanisms of cadmium-induced apoptosis such as mitochondrial membrane potential collapse, reactive oxygen species (ROS) influx, and cell cycle arrest. The results confirm the right whale microarray as a reproducible tool in measuring differentiated gene expression and should be a valuable asset for transcriptome analysis of other baleen whales and potential health assessment protocols. 35 Samples were analyzed representing 3 biological replicates for each treatment and corresponding controls except treatment 4hour_0.01uMCdCl2 had only two biological replicates due to spot intensity values. There are 3 spot replicates/probe on the array, along with Agilent control grid specific for 8X15K arrays, and 4 Karenia brevis sequences used as a negative control (K.brevis.chlorophyllA/Bbindingprotein, K.brevis.flavodoxin,K.brevis.photolyase,K.brevis.photosystemcoreprotein).
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