Nucleosome locations in human oral keratinocytes
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE65191 | GEO | 2017/12/31
SECONDARY ACCESSION(S): PRJNA273377
REPOSITORIES: GEO
Similar Datasets
Project description:We wished to assess the effect of miR196a on overall gene expression in reducing it in high expressing epithelial cells (D19 and B16) using antimiR196a and over expressing it in low-expressing cells (OKF4) using pre-miR196a. We transfected anti miR196a in to D19 and B16 oral keratinocytes which express high levels of miR196a in triplicate cultures, harvesting 24h after transfection. We transfected pre-miR196 in okf4 immorualised normal oral keratinocytes in duplicate culture. Successful transfection was ensured by qPCR.
2013-11-28 | GSE52810 | GEO
Project description:We wished to assess the effect of miR196a on overall gene expression in reducing it in high expressing epithelial cells (D19 and B16) using antimiR196a and over expressing it in low-expressing cells (OKF4) using pre-miR196a. We transfected anti miR196a in to D19 and B16 oral keratinocytes which express high levels of miR196a in triplicate cultures, harvesting 24h after transfection. We transfected pre-miR196 in okf4 immorualised normal oral keratinocytes in duplicate culture. Successful transfection was ensured by qPCR. 16 Samples in total. 2 high expressing cells: control and anti-miR transfected, in triplicate. 1 low expressing cell: control and premiR transfected, in duplicate
2013-11-28 | E-GEOD-52810 | biostudies-arrayexpress
Project description:The morphology and the behavior of skin and oral tissue keratinocytes are different. One significant dissimilarity between the two sites is the response to injury. Oral and skin keratinocytes have intrinsic differences in the response to injury and such differences are reflected in gene expression profiles. We used microarrays to investigate differences in global gene expression patterns between baseline skin and oral epithelium sheets without their underlying connective tissue.
2014-06-15 | GSE56135 | GEO
Project description:This was a hypothesis generating experiment to look at miR expression in a range of oral keratinocytes, including normal, precancer and oral cancer samples. The cells were cultures as per standard protocols (duplicate cultures) before assessment on the Affy miRNA array (1.0) one normal oral keratinocyte, one precancer, and 2 cancer samples, all in duplicate
2013-11-28 | E-GEOD-52811 | biostudies-arrayexpress
Project description:This was a hypothesis generating experiment to look at miR expression in a range of oral keratinocytes, including normal, precancer and oral cancer samples. The cells were cultures as per standard protocols (duplicate cultures) before assessment on the Affy miRNA array (1.0)
2013-11-28 | GSE52811 | GEO
Project description:The morphology and the behavior of skin and oral tissue keratinocytes are different. One significant dissimilarity between the two sites is the response to injury. Oral and skin keratinocytes have intrinsic differences in the response to injury and such differences are reflected in gene expression profiles. We used microarrays to investigate differences in global gene expression patterns between baseline skin and oral epithelium sheets without their underlying connective tissue. Paired skin and oral epithelium was separated from the dermis for RNA extraction and hybridization on Affymetrix microarrays. Skin epidermal tissues were obtained from the tail of mice and oral epidermal tissues were obtained from the hard palate. Enzymatically isolated epithelium was used for analysis.
2014-06-15 | E-GEOD-56135 | biostudies-arrayexpress
Project description:Shisha smoking is widely believed to be a hazard-free habit. Studies have reported shisha smoking to be associated with oral lesions as well ascarcinomas of the lung, esophagus, bladder, and pancreas. A better understanding of the underlying mechanism may contribute to the identification of biomarkers for targeted therapy and better prognosis of the disease. In this study, we have established a chronic model of shisha-exposed oral keratinocytes to study the effect of shisha smoking on oral cells. Normal oral keratinocytes (non-transformed and immortalised), OKF/TERT1, were chronically treated with shisha extract for 8 months. In vitro cellular assays as well as total proteomic analysis were performed using the OKF6/TERT1-Parental and shisha-exposed cells (OKF6/TERT1-Shisha) to understand the effect of shisha smoking on cellular transformation. Chronic exposure of OKF6/TERT1 cells with shisha resulted in a significant increase in cellular proliferation and cell invasion compared to the OKF6/TERT1-Parental cells. Quantitative proteomic analysis of OKF6/TERT1-Parental and OKF6/TERT1-Shisha cells resulted in the identification of more than 5,515 proteins. Of these 5,515 proteins, 82, 77, 106, 110 proteins were found to be differentially expressed (1.5-fold) in OKF6/TERT1 cells chronically treated with shisha extract for 2M, 4M, 6M and 8M, respectively when compared with OKF6/TERT1-Parental. Pathway and gene ontology-based analysis revealed dysregulation of interferon pathway, upregulation of proteins involved in cell growth and downregulation of immune processes. This study reveals that chronic treatment of normal oral keratinocytes with shisha leads to cellular transformation. Elucidation of dysregulated proteins in shisha smoke-exposed cells will provide insights into the effect of shisha smoking on oral cells and aid in identification of therapeutic targets.
2019-02-21 | PXD011106 | Pride
Project description:Shisha smoking has been epidemiologically linked to development of oral lesions as well as various cancers. However, few molecular studies investigate the pathobiology of shisha induced cancer. In this study we investigate the effects of chronic shisha exposure in an in vitro model using normal, immortalized, non-transformed oral keratinocytes. Quantitative proteomic and phosphoproteomic analyses were performed on OKF6/TERT1 cells exposed to shisha for a period of 8 months. Gene Ontology and pathway analysis of dysregulated proteins and phosphoproteins were carried out to identify significantly enriched biological processes and pathways in shisha exposed cells compared to parental cells. Chronic shisha exposure resulted in increased cell scattering phenomenon in OKF6/TERT1 cells. Quantitative data analysis revealed differential phosphorylation of 164 phosphopeptides (fold change ≥1.5, p≤0.05) corresponding to 136 proteins. Kinases such as PRKCD were seen to be hyperphosphorylated. Pathway analysis revealed an enrichment of hyperphosphorylated and/or overexpressed proteins involved in the mTORC1 and EIF4F complexes. These complexes are associated with initiation of protein translation and are known to the affected in cancers. Network analysis also highlighted a downregulation of proteins associated with Type I interferon signaling in shisha exposed cells. High throughput phosphoproteomic analysis revealed global perturbations to the molecular milieu of oral keratinocytes upon shisha exposure. Further studies are needed to validate putative targets in oral cancer patients with shisha smoking history.
2019-07-23 | PXD011318 | Pride
Project description:Oral lichen planus (OLP) is a common oral mucosal disease, of which the etiology and pathogenesis are still unclear. Microorganisms may play an essential role in the pathogenesis of OLP. Previous studies of our group found that the composition ratio of Prevotella melaninogenica (Pm) on the buccal mucosa surface of OLP patients increased significantly. In addition, Pm could invade the epithelium of OLP. As the first physical defense of the oral mucosa, oral keratinocytes may interact directly with Pm in OLP. Therefore, this study aimed to explore the impact of Pm on primary human oral keratinocytes' transcriptome.
2022-12-14 | GSE220609 | GEO
Project description:We have performed gene expression microarry analysis to profile molecular alterations in normal human oral keratinocytes that are induced by EtOH and/or nicotine. Our goal is to examine molecular signatures that are dysregulated by EtOH or nicotine and define the effects of co-use of alcohol and nicotine on normal oral epithelial cells and potentially on carcinogenesis. Primary normal human oral keratinocytes were cultured and treated with various dose of EtOH (0, 20 and 50 mM) and cotreated with various dose of nicotine (0, 0.5 and 1uM) for 24 hours. Total RNA was isolated and subjected to gene expression microarray analysis using Affymetrix Human Genome 2.0 plus.
2014-05-14 | E-GEOD-57634 | biostudies-arrayexpress