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RNA-seq in human progenitor epidermal keratinocytes (HPEK) stimulated with TGF-beta.

ABSTRACT: RNA-seq in human progenitor epidermal keratinocytes (HPEK) stimulated with TGF-beta.

PROVIDER: PRJNA747269 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15177477.fastq.gz	Fastqsanger.gz
	SRR15177478.fastq.gz	Fastqsanger.gz
	SRR15177479.fastq.gz	Fastqsanger.gz
	SRR15177480.fastq.gz	Fastqsanger.gz

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RNA-seq in human progenitor epidermal keratinocytes (HPEK) stimulated with TGF-beta.

Project description:Smad family proteins transduce signals downstream of transforming growth factor-beta (TGF-beta) and are one of the factors that regulate target genes related to diseases affecting the skin. We here identified C2orf54, officially known as MAB21L4, as one of the most up-regulated targets of TGF-beta and Smad3 in a differentiated human progenitor epidermal keratinocyte, using chromatin immunoprecipitation sequencing (ChIP-seq) and RNA sequencing (RNA-seq). Smad2 and Smad3 bind to the regulatory regions of the C2orf54 gene locus. We found that TGF-beta induced expression of a barrier protein involucrin (encoded by IVL gene), and transcriptional activity of the IVL promoter induced by TGF-beta was inhibited by siRNAs for C2orf54. Further analysis revealed that C2orf54 siRNAs also down-regulated the expression of several target genes of TGF-beta. C2orf54 protein located mainly in the cytosol, physically bound to Smad2 and Smad3, but did not inhibit the binding of Smad2 and Smad3 to the target genomic regions. These findings suggested that TGF-beta-induced C2orf54 up-regulates gene expression induced by Smads, possibly through its physical interaction with Smad proteins.

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