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During development, a polarized sheet of epidermal cells undergoes stratification and differentiation to produce the skin barrier. Through mechanisms poorly understood, the process involves adhesion and Notch signaling. To elucidate how epidermal embryogenesis is governed, we conditionally targeted ...
ORGANISM(S): Mus musculus 
In epidermal differentiation basal keratinocytes detach from the basement membrane, stop proliferating, and express a new set of structural proteins and enzymes, which results in an impermeable protein/lipid barrier that protects us. To define the transcriptional changes essential for this process, ...
ORGANISM(S): Homo sapiens 
Sphingosine 1-phosphate (S1P) is a bioactive lipid whose levels are tightly regulated by its synthesis and degradation. Intracellularly, S1P is dephosphoryled by the actions of two S1P-specific phosphatases, sphingosine 1-phosphate phosphatase 1 and 2. To identify the physiologic functions of S1P p...
ORGANISM(S): Mus musculus 
Progenitor cells at the basal layer of skin epidermis play an essential role in maintaining tissue homeostasis and enhancing wound repair in skin. The proliferation, differentiation, and cell death of epidermal progenitor cells have to be delicately regulated, as deregulation of this process can lea...
ORGANISM(S): Homo sapiens (Human) 
2020-05-13 | PXD015673 | Pride
Combining genome-wide microarray and functional analyses, we found that EGFR activation abrogates barrier function, increasing transepidermal water loss (TEWL) and transepithelial permeability of water-soluble ions and higher molecular weight dextrans, in part by disrupting the expression of tight j...
ORGANISM(S): Homo sapiens 
This SuperSeries is composed of the following subset Series: GSE34556: Diverse epigenetic strategies interact to control epidermal differentiation [ChIP-Seq] GSE34557: Diverse epigenetic strategies interact to control epidermal differentiation [Illumina bead array] Refer to individual Series
ORGANISM(S): Homo sapiens 
An essential function of the human epidermis is the maintenance of a protective barrier against the environment. As a consequence, keratinocytes, which make up this layer of the skin, undergo an elaborate process of self-renewal, terminal differentiation and cell death. Misregulation of these proces...
ORGANISM(S): Homo sapiens 
Betaine (trimethylglycine) is a non-toxic, highly water-soluble organic osmolyte widely used in skin care due to its assumed moisturizing and protective properties, but only few studies have addressed its specific effects in skin. Here, the cellular and molecular targets of betaine were analyzed by ...
ORGANISM(S): Rattus norvegicus 
We discovered that glucose directly bind to DDX21, induced the conformation change of the proteins and inhibit its helicase activity. Glucose also inhibits the dimerization of DDX21, re-localize DDX21 from nucleolus to nucleoplasm and reassemble DDX21 to RNA splicing complex. DDX21 is essential for ...
ORGANISM(S): Homo sapiens (Human) 
2023-01-05 | PXD028561 | Pride
There are multiple stem cells in adult mammalian epidermis, but the mechanisms controlling lineage specification are poorly understood. To identify gene expression signatures of the three major epidermal differentiation compartments we micro-dissected individual SG, IFE and HF from adult epidermis. ...
ORGANISM(S): Mus musculus 
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