Transcriptome of CALML5-depleted human organotypic epidermis
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View SamplesThe goal of the study is to identify genes whose expression are enriched in the progenitor or differentiated layers of human skin, with an ultimate aim to find new molecular regulators of skin development and differentiation.
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View SamplesThe goal of this study is to determine the epidermal genes whose expression is significantly altered by depletion of the gene stratifin (SFN).
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View SamplesAim to identify the potential relationship between DNA methylation and gene expression.
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View SamplesAngelica polysaccharide (APS) is one of the major active components isolated from Angelica sinensis. Evidences suggested APS may have therapeutic potential for psoriasis. HaCaT cell line was commonly used as an in vitro model to study psoriasis. In the present study, RNA-sequencing (RNA-seq) was performed to investigate the underlying mechanism of APS. Different concentrations of APS (0mg/mL, 50 mg/L, 100 mg/L and 200mg/L) were incubated with HaCaT cells for 36 h and transcriptome sequenced. Comparison of the gene expression profiles between the CK group (i.e., Control group) and ASP groups revealed dramatic differences. All the differentially expressed genes (DEGs) were then classified into 20 expression profiles by trend analysis. Significant enriched trend clusters were then analyzed. Interestingly, cell proliferation related gene ontology (GO) terms were mostly dispersed in the profile 2 and 17. Based on our functional annotation results and reported literature, authors suspected that SERPINE1, SMAD6 and CTGF, together with TGF-ß, may closely relevant to the anti-proliferation effect of APS.
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Sex, Specimen part, Cell line, Treatment
View SamplesLittle is known about the mechanisms underlying the localization of human melanocytes during embryogenesis, and how the characteristics of melanocytes differ in various body sites. Immunohistochemical studies of biopsy tissue obtained from four different anatomic sites (scalp, back, abdomen, and sole) of 31 aborted fetuses following the approval of the ethics committee for the study of human gene analysis revealed that the melanocyte-associated marker gp100 was expressed earlier in embryogenesis than other melanocyte markers. Human fetal melanocytes are initially localized in the epidermis, and then migrate to the hair buds from the epidermis but not the dermis. In the sole, melanocytes localize in eccrine sweat gland ducts. Cultured fetal melanocytes did not stain positively for any melanocyte markers other than MITF and nestin. When co-cultured with normal human keratinocytes and fibroblasts, fetal melanocytes stained positively for gp100. Gene expression studies indicated that fetal melanocytes were topographically diverse, especially sole-derived melanocytes compared with other melanocytes. Expression of several genes, including CHI3L1 and FGF7, was higher in sole-derived melanocytes. These findings suggest that human fetal melanocytes derived from the sole have different profiles both in vivo and in vitro compared with melanocytes from other sites.
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Age, Specimen part
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