Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Dek overexpression under the environment exposed to carcinogen in oral squamous cell.

ABSTRACT: Oral squamous cell carcinoma (OSCC) develop multi-step carcinogenesis, including the concept of the field cancerization. DEK gene is considered to be a proto-oncogene, has multifaceted functions, such as replication, transcription, and chromatin remodeling, and also affects oncogenic process, such as cellular proliferation, differentiation, senescence, and apoptosis. DEK overexpression has proposed to be closely associated with many malignancies, however, functional mechanisms and crucial roles are still unclear. DEK-expressing cells significantly increased in human oral squamous cell carcinogenesis. We generated ubiquitous and squamous cell-specific Doxycycline (DOX)- inducible Dek mice (iDek and iDek-e mice, respectively). DOX administrated (DOX+) iDek mice promoted field cancerization and the development of OSCC in the environment exposed to carcinogen. By the microarray expression profiling analysis, the promotion of the filed cancerization by Dek overexpression was mediated by the upregulation of DNA replication- and cell cycle (G1 to S phase transition)-related genes. Further, Dek-overexpressed tongue tumors were progressed by proliferating cell nuclear antigen (Pcna) and the elongator complex protein 3 (Elp3). Our data suggest that, by DEK overexpression enhances the carcinogenesis, including field cancerization, of OSCC stimulating the G1-to-S phase transition in the cell-cycle and DNA replication, even after carcinogen-exposed environment, and offers a fascinating target for treatment and prevention of OSCC.

ORGANISM(S): Mus musculus

PROVIDER: GSE87587 | GEO | 2016/10/05

SECONDARY ACCESSION(S): PRJNA345310

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Early anti-tumor activity of oral Langerhans cells is compromised by a carcinogen

Project description:Early diagnosis of oral squamous cell carcinoma (OSCC) remains an unmet clinical need. Therefore, elucidating the initial events of OSCC preceding tumor development could benefit OSCC prognosis. Here we define the Langerhans cells (LC) of the tongue and demonstrate that LC protect the epithelium from carcinogen-induced OSCC by rapidly priming αβT cells capable of eliminating γH2AX+ epithelial cells, whereas γδT and NK cells are dispensable. The carcinogen, however, dysregulates the epithelial resident mononuclear phagocytes, reducing LC frequencies while dendritic cells (DC), macrophages, and plasmacytoid DC (pDC) populate the epithelium. Single-cell RNAseq analysis indicates that these newly differentiated cells display an immunosuppressive phenotype accompanied by an expansion of T regulatory (Treg) cells. Accumulation of the Treg cells was regulated, in part, by pDC and precedes the formation of visible tumors. This suggests LC play an early protective role during OSCC, yet the capacity of the carcinogen to dysregulate the differentiation of mononuclear phagocytes facilitates oral carcinogenesis.

2022-01-26 | GSE192470 | GEO

Mus musculus

Project description:Dek overexpression under the environment exposed to carcinogen in oral squamous cell.

| PRJNA345310 | ENA

Affymetrix SNP array data for oral squamous cell carcinoma and oral dysplasia samples

Project description:The development of oral squamous cell carcinoma (OSCC) is a multistep process requiring the accumulation of genetic alterations. Oral carcinogenesis is a multifactorial process involving numerous genetic changes that affect the activity of oncogenes, tumor suppressor genes and other classes of disease-related genes.Therefore, to identify the responsive genes for progression of oral dysplasia or OSCC, we here performed CGH analysis to DNA from oral dysplasia and OSCC by microdissection Copy number analysis of Affymetrix 250K SNP arrays was performed for 8 oral dysplasia samples, 8 oral squamous cell carcinoma samples, using microdissection

2013-10-22 | E-GEOD-51265 | biostudies-arrayexpress

RNA expression in tongue squamous cell carcinoma, tumour free tongue tissue and control tongue

Project description:Tongue squamous cell carcinoma is a tumour type with rather low five year survival, around 60%. The poor survival rate has been ascribed to late detection, a high frequency of locoregional recurrence, the occurrence of secondary primary tumours and death due to comorbidity. One reason for development of recurrence is thought to be the existence of transformed cells in areas adjacent to the primary tumour, cancerization field effect. The aim of this study was to map the changes in the tumour free tongue tissue adjacent to tongue tumours compared with healthy control tongue tissue to better understand the cancerization field effect. Tissue biopsies were collected from tumour (T) and tumour free tissue adjacent to the tumour (TF) from patients with tongue squamous cell carcinoma. Control tissue was collected from latter border of the tongue of tumour free healthy volunteers (C). All samples were homogenized and RNA was extracted. The RNA was biotin labelled and run on Illumina HT-12 bead chip array.

2016-12-21 | E-MTAB-4678 | biostudies-arrayexpress

Quantitative proteomic analysis of head and neck squamous cell carcinoma (HNSCC) based on pathological grading using FFPE blocks using high-resolution mass spectrometry

Project description:Oral squamous cell carcinoma is one of the most common cancers occurring worldwide associated with significant mortality and morbidity. Despite the early prognostic factors which such as histological tumor grading, staging, the extent of the tumor invasion, and involvement of regional lymph nodes, there is a demand for development of molecular markers which will help in unraveling molecular carcinogenesis associated with OSCC. In the current study, we carried out an in-depth proteomic analysis using high-resolution mass spectrometry to identify the differentially expressed proteins among the types of OSCC FFPE tissues. This resulted in the identification of 2,399 non-redundant proteins expressed differentially across histologically-classified well, moderate and poorly differentiated OSCC specimens.

2021-09-09 | PXD019456 | Pride

Alterations of DNA methlation in oral cavity of mice induced by dibenzo[def,p]chrysene

Project description:Despite advances in treatment modalities, 5-year survival of OSCC has remained at ~50% for the past decades, mostly due to the high risk of developing secondary primary tumors. Early detection of OSCC represents one of the most promising approaches to improving survival. In this study, we examined the alterations of DNA methylation in early stage of oral carcinogenesis in mice induced by carcinogen dibenzo[def,p]chrysene. We identified 30 differentially methylated sites and canonical pathways that may be served as potential biomarkers for early detection of OSCC.

2018-02-13 | GSE89916 | GEO

Gene expression profilings of normal human oral keratinocyte (HOK) and dysplastic oral keratinocyte cell line from a heavy smoker (DOK)

Project description:In our previous study, we identified global genetic and epigenetic aberrations in the tumors of oral squamous cell carcinoma (OSCC) patients who were habitual smokers. We hypothesized that cigarette smoke might play a role in oral malignant transformation. DOK cell line is a dysplasitc oral keratinocyte derived from a heavy smoker with OSCC. The differentially expressed genes between DOK and normal human oral keratinocytes (HOK) may provide important information about OSCC carcinogenesis mediated by cigarette smoking. Total RNA was collected from DOK and HOK cells followed by gene expression microarray analysis.

2015-12-31 | E-GEOD-54861 | biostudies-arrayexpress

Microenvironment-induced CREPT expression by cancer-derived small extracellular vesicles primes field cancerization

Project description:Cancer local recurrence increases the mortality of patients, and might be caused by field cancerization, a pre-malignant alteration of normal epithelial cells. It has been suggested that cancer-derived small extracellular vesicles (CDEs) may contribute to field cancerization, but the underlying mechanisms remain poorly understood. In this study, we aim to identify the key regulatory factors within recipient cells under the instigation of CDEs. In vitro experiments were performed to demonstrate that CDEs promote the expression of CREPT in normal epithelial cells. TMT-based quantitative mass spectrometry was employed to investigate the proteomic differences between normal cells and tumor cells. Loss-of-function approaches by CRISPR-Cas9 system were used to assess the role of CREPT in CDEs-induced field cancerization. RNA-seq was performed to explore the genes regulated by CREPT during field cancerization. CDEs promote field cancerization by inducing the expression of CREPT in non-malignant epithelial cells through activating the ERK signaling pathway. Intriguingly, CDEs failed to induce field cancerization when CREPT was deleted, highlighting the importance of CREPT. Transcriptomic analyses revealed that CDEs elicited inflammatory responses, primarily through activation of the TNF signaling pathway. CREPT, in turn, regulates the transduction of downstream signals of TNF by modulating the expression of TNFR2 and PI3K, thereby promoting inflammation-to-cancer transition. CREPT not only serves as a biomarker for field cancerization, but also emerges as a target for preventing the cancer local recurrence.

2023-12-10 | GSE249383 | GEO

Affymetrix SNP array data for oral squamous cell carcinoma and oral dysplasia samples

2013-10-22 | GSE51265 | GEO

Whole-transcriptome analyses identify critical differentially expressed mRNAs, miRNAs, lncRNAs, and circRNAs during the process of oral carcinogenesis

Project description:Oral carcinogenesis is a multi-step process involving normal mucosa progressing to oral precancerous lesions and finally to oral squamous cell carcinoma (OSCC). This complex process encompasses various molecules, including non-coding RNAs (ncRNAs). In this study, we performed whole-transcriptome analyses on adjacent normal tissues, oral leukoplakia tissues, and OSCC tissues, with the goal of identifying key differentially expressed circRNAs, lncRNAs, miRNAs, and mRNAs associated with different stages of oral carcinogenesis. In our study, numerous differentially expressed circRNAs, lncRNAs, miRNAs, and mRNAs were identified in adjacent normal, oral leukoplakia, and OSCC tissues. Subsequently, we constructed two regulatory competitive endogenous RNA (ceRNA) networks and identified some potential critical molecules involved in oral carcinogenesis. In conclusion, based on the whole-transcriptome analyses, we mapped the molecular feathers at RNA level during the process of oral carcinogenesis and revealed certain ncRNAs with great research potential.

2023-10-26 | GSE246050 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data