Project description:The data set compares the microRNA expression of two types of keratinocytes from the tympanic membrane and epidermis of the body. Healthy human samples were harvested for the analysis. Cells were cultivated to evaluate the effect of keratinocytes only. Few Chip Ids (11) were considered differentially expressed between the cell types.
Project description:The data set compares the gene expression of two types of keratinocytes from the tympanic membrane and epidermis of the body. Healthy human samples were harvested for the analysis. Cells were cultivated to evaluate the effekt of keratinocytes only. 626 Chip Ids considered differentially expressed between the cell types. Enrichment tests show genes related to migration are over-represented in the highly expressed genes of TMK vs. EK.
Project description:Human adipose-derived mesenchymal stem cells were cultured either in hypoxia (Hx; <0.1% oxygen) or standard culture conditions (normoxia, Nx) over 48 hours in serum-free medium. Human tympanic membrane keratinocytes were cultured in standard culture conditions over 48 hours in serum-free medium.
Project description:The data set compares the microRNA expression of two types of keratinocytes from the tympanic membrane and epidermis of the body. Healthy human samples were harvested for the analysis. Cells were cultivated to evaluate the effect of keratinocytes only. Few Chip Ids (11) were considered differentially expressed between the cell types. Six samples were analyzed in total. Each cell type in biological triplicates. Genes of p-value <0.05 and fold change of ⥠1.5 were considered significant.
Project description:miRNA expression data from cultivated Human Thymic Epithelial Cells (hTECs) in comparison with cultivated Human Epidermal derived Keratinocytes (hEKs)
Project description:The data set compares the gene expression of two types of keratinocytes from the tympanic membrane and epidermis of the body. Healthy human samples were harvested for the analysis. Cells were cultivated to evaluate the effekt of keratinocytes only. 626 Chip Ids considered differentially expressed between the cell types. Enrichment tests show genes related to migration are over-represented in the highly expressed genes of TMK vs. EK. Six samples were analysed in total. Each cell type in biological triplicates. Genes of p-value <0.05 and fold change of ≥ 1.5 were considered significant.
Project description:We have sequenced miRNA libraries from human embryonic, neural and foetal mesenchymal stem cells. We report that the majority of miRNA genes encode mature isomers that vary in size by one or more bases at the 3’ and/or 5’ end of the miRNA. Northern blotting for individual miRNAs showed that the proportions of isomiRs expressed by a single miRNA gene often differ between cell and tissue types. IsomiRs were readily co-immunoprecipitated with Argonaute proteins in vivo and were active in luciferase assays, indicating that they are functional. Bioinformatics analysis predicts substantial differences in targeting between miRNAs with minor 5’ differences and in support of this we report that a 5’ isomiR-9-1 gained the ability to inhibit the expression of DNMT3B and NCAM2 but lost the ability to inhibit CDH1 in vitro. This result was confirmed by the use of isomiR-specific sponges. Our analysis of the miRGator database indicates that a small percentage of human miRNA genes express isomiRs as the dominant transcript in certain cell types and analysis of miRBase shows that 5’ isomiRs have replaced canonical miRNAs many times during evolution. This strongly indicates that isomiRs are of functional importance and have contributed to the evolution of miRNA genes
