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SRP090091
Homo sapiens
14 Downloadable Samples
Description
mRNA, sncRNA and lncRNA show a clear difference in expression between proliferative phase and 7–9 days after ovulation, thorough described together with lncRNA, snoRNA and snRNA not previously reported in healthy human endometrium Overall design: 7 small RNA and 7 total RNA samples sequenced from endmometrial tissue from two time points of the menstrual cycle. Gene expression from the two time points compared. Additionally 12 small RNA from stromal cells was sequenced.
Publication Title
Comprehensive RNA sequencing of healthy human endometrium at two time points of the menstrual cycle.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 4 Downloadable Samples
Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Protein synthesis belongs to the most energy consuming processes in the cell. Lowering oxygen tension below normal (hypoxia) causes a rapid inhibition of global mRNA translation due to the decreased availability of energy. Interestingly, subsets of mRNAs pursue active translation under such circumstances. In human fibrosarcoma cells (HT1080) exposed to prolonged hypoxia (36 h, 1% oxygen) we observed that transcripts are either increasingly or decreasingly associated with ribosomes localized at the endoplasmic reticulum (ER). In a global setting it turned out that only 31% of transcripts showing elevated total-RNA levels were also increasingly present at the ER in hypoxia. These genes, regulated by its expression as well as its ER-localization, belong to the gene ontologys hypoxia response, glycolysis and HIF-1 transcription factor network supporting the view of active mRNA translation at the ER during hypoxia. Interestingly, a large group of RNAs was found to be unchanged at the expression level, but translocate to the ER in hypoxia. Among these are transcripts encoding translation factors and >180 ncRNAs. In summary, we provide evidence that protein synthesis is favoured at the ER and, thus, partitioning of the transcriptome between cytoplasmic and ER associated ribosomes mediates adaptation of gene expression in hypoxia.
Publication Title
Hypoxia-induced gene expression results from selective mRNA partitioning to the endoplasmic reticulum.
Sample Metadata Fields
Specimen part, Cell line
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