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: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: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 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:Previous descriptions of the cellular makeup of the tympanic membrane (TM) describe three basic cell types: keratinocytes, fibrofblasts, and muscosal cells. To better understand the diversity of cells in this tissue, we performed single-cell RNA sequencing on dissociated murine and human TMs. We identified the basic cell types previously known, as well as subtypes of cells in each group. Notably, keratinocyte cell clusters spanning the known differentiation kierarchy were identified, including two groups of undifferentiated keratinocytes which we propose make distinct contributions to maintaining the TM epidermis.
Project description:<p>Transcription factor p63 is a key regulator of epidermal keratinocyte proliferation and differentiation. Mutations in the p63 DNA-binding domain are associated with Ectrodactyly Ectodermal Dysplasia Cleft Lip/Palate (EEC) syndrome. Underlying molecular mechanism of these mutations however remain unclear. Here we characterized the transcriptome and epigenome of p63 mutant keratinocytes derived from EEC patients. The transcriptome of p63 mutant keratinocytes deviated from the normal epidermal cell identity. Epigenomic analyses showed an altered enhancer landscape in p63 mutant keratinocytes contributed by loss of p63-bound active enhancers and by unexpected gain of enhancers. The gained enhancers were frequently bound by deregulated transcription factors such as RUNX1. Reversing RUNX1 overexpression partially rescued deregulated gene expression and the altered enhancer landscape. Our findings identify an unreported disease mechanism whereby mutant p63 rewires the enhancer landscape and affects epidermal cell identity, consolidating the pivotal role of p63 in controlling the enhancer landscape of epidermal keratinocytes.</p>
