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MetabolomicsFatty acid transport protein 4 is required for incorporation of saturated ultralong-chain fatty acids into epidermal ceramides and monoacylglycerols
Fatty acid transport protein 4 (FATP4) is an acyl-CoA synthetase that is required for normal permeability barrier in mammalian skin. FATP4 (SLC27A4) mutations cause ichthyosis prematurity syndrome, a nonlethal disorder. In contrast, Fatp4-/- mice die neonatally from a defective barrier. H...
2021-07-15 | MTBLS1138 | MetaboLights
MetabolomicsIntegration of magnetic resonance imaging and protein and metabolite CSF measurements to enable early diagnosis of secondary progressive multiple sclerosis

Molecular networks in neurological diseases are complex. Despite this fact, contemporary biomarkers are in most cases interpreted in isolation, leading to a significant loss of information and power. We present an analytical approach to scrutinize and combine information from biomarkers originati...

2018-08-13 | MTBLS558 | MetaboLights
TranscriptomicsGene expression signature of Gata6 positive epidermal cells.
To characterize gene expression in Gata6 positive epidermal cells we analyzed a Gata6 reporter mouse in which the endogenous Gata6 promoter drives expression of mTomato. We performed flow cytometry followed by transcriptome analysis. We compared four subpopulations of telogen epidermal cells: Gata6+...
ORGANISM(S): Mus musculus 
2017-05-16 | E-GEOD-62606 | biostudies-arrayexpress
TranscriptomicsExtraction of high-quality epidermal RNA after NH4SCN induced dermo-epidermal separation of 4 mm human skin biopsies
To obtain a separation of the epidermal and dermal compartments in order to examine compartment specific biological mechanisms in the skin we incubated 4 mm human skin punch biopsies in ammonium thiocyanate (NH4SCN). We wanted to test 1) the histological quality of the dermo-epidermal separation obt...
ORGANISM(S): Homo sapiens 
2010-03-03 | E-GEOD-15101 | biostudies-arrayexpress
TranscriptomicsEpidermal differentiation: basal vs. suprabasal keratinocytes
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 
2010-12-15 | E-GEOD-26059 | biostudies-arrayexpress
TranscriptomicsExpression data from epidermal stem cells isolated from dorsal skin of P19 Per1-Venus mice and Bmal1 epidermal knockout mice
Epidermal stem cells ensure that skin homeostasis is maintained. In murine skin, epidermal stem cells cluster at specific niches where, under steady-state conditions, they undergo cycles of dormancy and activation1. When cellular replenishment is required, epidermal stem cells egress from the niche ...
ORGANISM(S): Mus musculus 
2011-12-08 | E-GEOD-27079 | biostudies-arrayexpress
TranscriptomicsDermal reprogramming through epidermal activation of beta-catenin
Hair follicle formation depends on reciprocal epidermal-dermal interactions and occurs during skin development, but not in adult life. This suggests that the properties of dermal fibroblasts change during postnatal development. To examine this, we used a PdgfraEGFP mouse line to isolate GFP-positive...
ORGANISM(S): Mus musculus 
2011-10-12 | E-GEOD-32966 | biostudies-arrayexpress
TranscriptomicsExpression data from normal human epidermal keratinocytes undergoing density-induced differentiation and treated with EGF
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 
2012-05-02 | E-GEOD-32217 | biostudies-arrayexpress
TranscriptomicsThe effects of UVB and the organic osmolyte betaine on rat epidermal keratinocytes in an organotypic culture system
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 
2015-10-26 | E-GEOD-63004 | biostudies-arrayexpress
TranscriptomicsTranscriptional Profiling Defines the Roles of ERK and p38 Kinases in Epidermal Keratinocytes
Epidermal keratinocytes respond to extracellular influences by activating cytoplasmic signal transduction pathways that change the transcriptional profiles of affected cells. To define responses to two such pathways, p38 and ERK, we used SB203580 and PD98059 as specific inhibitors, and identified th...
ORGANISM(S): Homo sapiens 
2013-09-05 | E-GEOD-50591 | biostudies-arrayexpress
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