Expression data from Epiderm cultured skin derived from four different donors
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: Jay Patrick Tiesman
PROVIDER: E-GEOD-19330 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:This study provides a comparison of genes expressed in reconstructed cultured epidermis derived from four different donors. GeneChips were used to compare reconstructed human EpiDerm™ EPI-200 tissues prepared from four different neonatal foreskin donors (254, 1188, 219 and 926). This work will assist in providing a deeper understanding of genes expressed in cultured skin equivalents. Keywords: Cell type/donor comparison
2010-06-03 | GSE19330 | GEO
Project description:The harmful effects of cigarette smoke exposure on the respiratory tract are widely known. Exposure to aerosol from electronic vapor (e-vapor) products has been suggested to result in less risk of harm to smokers than CS exposure. Many studies have assessed the potential toxicity of the aerosol from e-vapor products in vitro. However, most studies have only tested the effects of liquid formulations applied directly to cell cultures but not those of the aerosolized formulations. In this study, we examined the effects of acute exposure on human organotypic bronchial epithelial culture and alveolar tri-culture models to an aerosol generated by an e-vapor device that uses the MESH™ technology (IQOS® MESH, Philip Morris International) and to CS from the 3R4F reference cigarette. In contrast to 3R4F CS exposure, exposure to the IQOS MESH Classic Tobacco aerosol did not cause cytotoxicity in either of the two lung culture models, despite resulting in greater concentrations of deposited nicotine. Ciliary beating frequency in bronchial cultures was not impacted in response to IQOS MESH aerosol exposure, whereas CS exposure caused a marked decrease in the frequency and the cilia beating active area. We complemented the histological and functional findings with quantitative analysis of the molecular changes in the exposed cultures. Global mRNA expression profiles and secreted protein profiles revealed a significantly lower impact of exposure to IQOS MESH aerosol than to 3R4F CS exposure. Overall, our study using whole aerosols for the exposure shows a much reduced impact of IQOS MESH aerosol in comparison to CS exposure in both bronchial and alveolar cultures, even at greater nicotine doses.
2021-01-31 | E-MTAB-10071 | biostudies-arrayexpress
Project description:Cigarette smoke (CS) has been reported to increase predisposition to oral cancer and is also recognized as a risk factor for many conditions including periodontal diseases, gingivitis, and other benign mucosal disorders. Smoking cessation remains the most effective approach for minimizing the risk of smoking-related diseases. However, reduction of harmful constituents by heating rather than combusting tobacco, without modifying the amount of nicotine, is a promising new paradigm in harm reduction. In this study, we compared effects of exposure to aerosol derived from a candidate modified risk tobacco product, the tobacco heating system (THS) 2.2, with those of CS generated from the 3R4F reference cigarette. Human organotypic oral epithelial tissue cultures (EpiOral, MatTek Corporation) were exposed for 28 min to 3R4F CS or THS2.2 aerosol, both diluted with air to comparable nicotine concentrations (0.32 or 0.51 mg nicotine/L aerosol/CS for 3R4F and 0.31 or 0.46 mg/L for THS2.2). We also tested one higher concentration (1.09 mg/L) of THS2.2. A systems toxicology approach was employed combining cellular assays (i.e., cytotoxicity and cytochrome P450 activity assays), comprehensive molecular investigations of the buccal epithelial transcriptome (mRNA and miRNA) by means of computational network biology, measurements of secreted proinflammatory markers, and histopathological analysis. We observed that the impact of 3R4F CS was greater than THS2.2 aerosol in terms of cytotoxicity, morphological tissue alterations, and secretion of inflammatory mediators. Analysis of the transcriptomic changes in the exposed oral cultures revealed significant perturbations in various network models such as apoptosis, necroptosis, senescence, xenobiotic metabolism, oxidative stress, and nuclear factor (erythroid-derived 2)-like 2 (NFE2L2) signaling. The stress responses following THS2.2 aerosol exposure were markedly decreased, and the exposed cultures recovered more completely compared with those exposed to 3R4F CS.
2018-03-01 | E-MTAB-6545 | biostudies-arrayexpress
Project description:Besides its well-known effects increasing predisposition to oral cancer, cigarette smoke (CS) exposure is an important risk factor for many conditions including periodontal diseases, gingivitis and other benign mucosal disorders. Smoking cessation remains the most effective approach for minimizing risk of smoking-related diseases. However, reduction of harmful constituents by heating rather than combusting tobacco, without modifying the amount of nicotine, is a promising new paradigm in harm reduction. In this study we compared effects of exposure to aerosol derived from a candidate modified risk tobacco product, the tobacco heating system (THS) 2.2, with those of conventional smoke generated from the 3R4F reference cigarette. Human organotypic oral epithelial tissue cultures (EpiOralï¾, MatTek Corporation) were exposed for 28 min to 3R4F CS or THS2.2 aerosol, both diluted with air to comparable nicotine concentrations (0.32 or 0.51 mg nicotine/L aerosol/smoke for 3R4F and 0.31 or 0.46 mg/L for THS2.2). We also tested one higher concentration (1.09 mg/L) of THS2.2. A systems toxicology approach was employed combining cellular assays (i.e. cytotoxicity and cytochrome P450 activity assays), comprehensive molecular investigations of the buccal epithelial transcriptome (mRNA and miRNA) by means of computational network biology, measurements of secreted proinflammatory markers, histopathological analysis. We observed that the impact of 3R4F CS was greater than THS2.2 aerosol in terms of cytotoxicity, morphological tissue alterations and secretion of inflammatory mediators. Analysis of the transcriptomic changes in the exposed oral cultures revealed significant perturbations in various network models such as apoptosis, necroptosis, senescence, xenobiotic metabolism, oxidative stress and nuclear factor (erythroid-derived 2)-like 2 (NFE2L2) signaling. The stress responses following THS2.2 aerosol exposure were markedly decreased and the exposed cultures recovered better as compared with those exposed to 3R4F CS.
2016-07-26 | E-MTAB-4742 | biostudies-arrayexpress
Project description:Airway epithelial cells are the first cells of the lungs to be exposed to the toxic agents contained within cigarette smoke. Accordingly, the response of these cells to this challenge is of considerable interest in the context of diseases in which cigarette smoke is a major aetiological factor. We used Affymetrix microarrays to study the effects of repeated cigarette smoke challenge on three-dimensional human lung airway epithelial cultures. We have used cultures from four individual donors, and compared the effects of repeated cigarette smoke challenge (30mins exposure on four separate days), with no challenge.
2011-08-30 | E-GEOD-30660 | biostudies-arrayexpress
Project description:One function of plant lectins is to serve as defenses against herbivorous insects. The midgut is the critical site affected by dietary lectins such as wheat germ agglutinin (WGA). We observed marked cellular structural and gene expression changes in Drosophila melanogaster third-instar larval midguts from insects WGA-fed or starved. Dietary WGA caused shortening, branching, swelling, distortion and in some cases disintegration of the midgut microvilli (Mv). Starvation was accompanied by shortening of the Mv. Microarray analyses revealed that dietary WGA evolved differential expression of 62 transcripts; seven of which were also differentially expressed in starved insects. The differentially regulated gene cluster in WGA-fed larvae were associated with (i) cytoskeletal organization, (ii) immune responses, (iii) detoxification reactions, and (iv) energy metabolism. Four putative transcription factor binding motifs (TFBMs) were associated with the differentially-expressed genes. At least one of these putative TFBMs exhibited substantial similarity to MyoD, a TFBM associated with cellular structures in mammals. These results are in keeping with the hypothesis that WGA causes a starvation-like effect as well as structural changes of midgut cells of Drosophila third-instar larvae. Experiment Overall Design: Three treatments (control, WGA, and Starvation), and three replicates for each treatment. So there are total nine samples. no dye-swap.
2008-10-26 | E-GEOD-11047 | biostudies-arrayexpress
Project description:Swedish snus is a smokeless tobacco product that contains reduced levels of harmful compounds compared with cigarette smoke. In Sweden, where snus use exceeds smoking among men, relatively low rates of major smoking-related diseases have been recorded. To better understand how snus use could align with current tobacco harm reduction strategies, its potential mechanisms of toxicity must be investigated. This study aimed to determine, via a systems toxicology approach, the biological impact of repeated 72-hour exposure of human gingival epithelial organotypic cultures to extracts from both a commercial and a reference snus and the total particulate matter (TPM) from cigarette smoke. At concentrations relevant for human use, cultures treated with snus extracts induced mild, generally reversible biological changes, while TPM treatment induced substantial morphological and inflammatory alterations. Network enrichment analysis and integrative analysis of the global mRNA and miRNA expression profiles indicated a limited and mostly transient impact of the snus extracts, in particular on xenobiotic metabolism, while the effects of TPM were marked and sustained over time. High-confidence miRNAs that might be related to pathological conditions in vivo were identified. This study highlights the limited biological impact of Swedish snus extract on human organotypic gingival cultures.
2019-01-30 | E-MTAB-7580 | biostudies-arrayexpress
Project description:Swedish snus is a smokeless tobacco product that contains reduced levels of harmful compounds compared with cigarette smoke. In Sweden, where snus use exceeds smoking among men, relatively low rates of major smoking-related diseases have been recorded. To better understand how snus use could align with current tobacco harm reduction strategies, its potential mechanisms of toxicity must be investigated. This study aimed to determine, via a systems toxicology approach, the biological impact of repeated 72-hour exposure of human gingival epithelial organotypic cultures to extracts from both a commercial and a reference snus and the total particulate matter (TPM) from cigarette smoke. At concentrations relevant for human use, cultures treated with snus extracts induced mild, generally reversible biological changes, while TPM treatment induced substantial morphological and inflammatory alterations. Network enrichment analysis and integrative analysis of the global mRNA and miRNA expression profiles indicated a limited and mostly transient impact of the snus extracts, in particular on xenobiotic metabolism, while the effects of TPM were marked and sustained over time. High-confidence miRNAs that might be related to pathological conditions in vivo were identified. This study highlights the limited biological impact of Swedish snus extract on human organotypic gingival cultures.
2019-01-30 | E-MTAB-7579 | biostudies-arrayexpress
Project description:The aim of this study was to analyze the in vitro biological epidermal processes occurring in reconstructed skins using cells from breast skin of African and Caucasian skin type color. A exploration of mRNA expression levels in the epidermis of reconstructed skin was undertaken to elucidate the differential in vitro functions of keratinocytes. The reconstruction of skin models was made with keratinocytes and fibroblasts from four different donors per skin type and experiments were conducted in triplicate for each donor. At the end of culture, the epidermis from reconstructed skin was manually separated from the dermal equivalent part in order to analyse gene expression in keratinocytes only. RNA samples were labelled with biotin and hybridation was performed on Affymetrix Human Genome U133 + PM Array Plates.
2020-08-10 | E-MTAB-9433 | biostudies-arrayexpress
Project description:RNA was obtained from rear leg muscle of normal and diabetic rats in the presence and absence of oral treatment with vanadyl sulfate. Diabetes was induced with streptozotocin and expression profiles were determined using Affymetrix Rat Genechip U34A. The effect of treatment and disease on gene expression was examined. Experiment Overall Design: 4 groups (normal, diabetic, normal treated with vanadyl sulfate and diabetic treated with vanadyl sulfate) with 5 replicates in each group were analyzed. Experiment Overall Design: PMID:16403228 discusses 2 groups (normal, diabetic). Experiment Overall Design: PMID:16684804 discusses all four groups.
2007-11-06 | E-GEOD-3068 | biostudies-arrayexpress