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Gene expression profiling of asbestos-related lung squamous cell carcinoma

ABSTRACT: To identify gene expression biomarkers associate with asbestos-related lung squamous cell carcinoma, we analyzed gene expression profiles for a total of 56 lung squamous cell carcinomas using 44K Illumina Gene Expression microarrays. Twenty-six cases had lung asbestos body counts above levels associated with urban dwelling (ARLC-SCC: asbestos-related lung cancer-squamous cell carcinoma) and 30 cases had no lung asbestos bodies (NARLC-SCC: non-asbestos related lung cancer- squamous cell carcinoma). Genes differentially expressed between ARLC-SCC and NARLC-SCC were identified on fold change and P-value, and then prioritised using gene ontology. Total RNA was obtained from fresh frozen lung tumour tissue and stratified by asbestos phenotype. Gene expression profiling was performed to identify differences in the gene profiles of asbestos-related and non-asbestos related lung squamous cell carcinomas.

ORGANISM(S): Homo sapiens

SUBMITTER: Casey Wright

PROVIDER: E-GEOD-23822 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Gene expression profiling of asbestos-related lung squamous cell carcinoma

Project description:To identify gene expression biomarkers associate with asbestos-related lung squamous cell carcinoma, we analyzed gene expression profiles for a total of 56 lung squamous cell carcinomas using 44K Illumina Gene Expression microarrays. Twenty-six cases had lung asbestos body counts above levels associated with urban dwelling (ARLC-SCC: asbestos-related lung cancer-squamous cell carcinoma) and 30 cases had no lung asbestos bodies (NARLC-SCC: non-asbestos related lung cancer- squamous cell carcinoma). Genes differentially expressed between ARLC-SCC and NARLC-SCC were identified on fold change and P-value, and then prioritised using gene ontology.

2012-01-30 | GSE23822 | GEO

LSCC

Project description:The basaloid carcinoma (pure) and the (mixed) basalod variant of lung squamous cell carcinoma (SCC) have a dismal prognosis but their underlying specific molecular characteristics remain obscure and no therapy has proven to be efficient. In order to assess their molecular specificity among other lung squamous cell carcinomas we analysed DNA copy number aberrations and mRNA expression pangenomic profiles of 93 SCC, including 42 basaloid samples (24 pure, 18 mixed).

2014-11-17 | E-MTAB-2435 | biostudies-arrayexpress

Array-Comparative Genomic Hybridization Reveals Loss of SOCS6 is Associated with Poor Prognosis in Primary Lung Squamous Cell Carcinoma

Project description:Primary tumor recurrence occurs commonly after surgical resection of lung squamous cell carcinoma (SCC). The aim of this study was to identify genes involved in recurrence in lung squamous cell carcinoma patients. Array comparative genomic hybridization (aCGH) was performed on DNA extracted from tumour tissue from 62 patients with primary lung squamous cell carcinomas. aCGH data was analysed to identify genes affected by copy number alterations that may be involved in SCC recurrence. Candidate genes were then selected for technical validation based on differential copy number between recurrence and non-recurrence SCC tumour samples. Genes technically validated advanced to tests of biological replication by qPCR using an independent test set of 72 primary lung SCC tumour samples. 18q22.3 loss was identified by aCGH as significantly associated with recurrence (p=0.038). Although aCGH copy number loss associated with recurrence was found for seven genes within 18q22.3, only SOCS6 copy number loss was both technically replicated by qPCR and biologically validated in the test set. DNA copy number profiling using 44K element array comparative genomic hybridization microarrays of 62 primary lung squamous cell carcinomas.

2011-12-25 | E-GEOD-32058 | biostudies-arrayexpress

Homo sapiens

Project description:Gene expression profiling of asbestos-related lung squamous cell carcinoma

| PRJNA130571 | ENA

Array-Comparative Genomic Hybridization Reveals Loss of SOCS6 is Associated with Poor Prognosis in Primary Lung Squamous Cell Carcinoma

2011-12-25 | GSE32058 | GEO

SOX2 is a new oncogene activated by the recurrent 3q26.3 amplifications in lung Squamous Cell Carcinoma

Project description:This SuperSeries is composed of the following subset Series: GSE14859: ArrayCGH mapping of chromosome 3 aberrations in lung Squamous Cell Carcinoma (SCC) GSE14883: SOX2 overexpression effect on human lung squamous cells GSE15079: ArrayCGH mapping of the recurrent 3q26.3-q27mplifications in lung Squamous Cell Carcinoma (SCC) Refer to individual Series

2010-05-14 | E-GEOD-15080 | biostudies-arrayexpress

Gene Expression Profiles in mouse lungs following 7 days post oropharyngeal aspiration exposure to different asbestos and asbestiform fibers.

Project description:Asbestos is the general term for a family of naturally occurring fibrous silicate minerals having commercial importance. They have been used widely for construction and for a number of industrial applications until early 70’s. It is now well known that workers exposed to asbestos are at high risk of developing many lung diseases including asbestosis, malignant mesothelioma, bronchial adenocarcinoma; squamous cell carcinoma of the respiratory epithelium and large/ small cell lung carcinoma. However, the disease causing potential and related processes associated with various asbestos/asbestiform fiber exposures are still largely unknown. In this study, we exposed C57BL6 female mice to asbestos (crocidolite, tremolite), asbestiform fibers (erionite) and a low pathogenicity mineral fiber (wollastonite) to assess pulmonary toxicity responses along with gene expression profiles in the lungs following 7 days post pharyngeal aspiration.

2018-03-01 | GSE100900 | GEO

Gene expression profiling of paracancerous tissues of human lung squamous cell carcinoma

Project description:Our group previously reported the gene expression profiles of four stages of human lung development, and the expression of one group of genes (PTN1 genes) steadily decreased during lung development, the data included four stages of human lung development and 69 lung adenocarcinoma (ADC) samples, and their gene expression profile data are available in the GEO (GSE43767). Our group has already performed another study with 69 lung squamous cell carcinoma (SCC) tissues, the gene expression profile data are available in the Gene Expression Omnibus (GSE67061). In the present study, we performed the whole genome gene expression mircroarray of 60 paracancerous tissues of human lung squamous cell carcinoma, we aim to show expression characteristics of PTN1 genes during the four lung developmental stages and in lung ADC, lung SCC and paracancerous samples. We examined the prognostic value of the PTN1 genes in five independent lung adenocarcinoma (ADC) and five squamous cell carcinoma (SCC) microarray datasets and revealed that the expression of PTN1 genes was associated with survival in lung ADC patients but had no prognostic value for lung SCC.

2017-07-15 | GSE101420 | GEO

SOX2 and p63 occupancy in human squamous carcinoma cell lines and embryonic stem cells.

Project description:SOX2 is a transcription factor essential for pluripotent stem cells, and development and maintenance of squamous epithelium. We previously reported SOX2 an oncogene subject to highly recurrent genomic amplification in squamous cell carcinomas (SCCs). Here we demonstrate in SCCs that SOX2 interacts with another master squamous transcription factor p63, and through ChIP-seq show that genomic occupancy of SOX2 overlaps with that of p63 at a large number of loci and that they cooperatively regulate gene expression including ETV4, which we find essential for SOX2-amplified SCC cell survival. Furthermore, SOX2 binds to distinct genomic loci in SCCs than in embryonic stem cells and the SOX2-p63 coordinate binding is unique to SCC. In addition, a subset of SOX2 genomic binding sites in SCC that lack p63 co-occupancy are co-occupied by the AP-1 transcriptional complex. These demonstrate that SOX2’s actions in SCC differ substantially from its role in pluripotency and identify novel SOX2 interactions that will enable deeper characterization of SOX2’s function in SCC. SOX2 and p63 ChIP-seq from three lung and esophageal squamous carcinoma cell lines with amplification of SOX2 as well as SOX2 ChIP-seq from an ES cells.

2014-03-12 | E-GEOD-46837 | biostudies-arrayexpress

ArrayCGH mapping of chromosome 3 aberrations in lung Squamous Cell Carcinoma (SCC)

Project description:To prospectively identify new oncogenes implicated in lung Squamous Cell Carcinoma pathogenesis, we investigated chromosome 3 aberrations in advanced tumours using arrayCGH. These aberrations are indeed among the most frequent aberrations in lung SCC and correlate with SCC patient's poor prognosis. We precisely map regions of recurrent losses at 3p and gains at 3q25-qter in a series of lung SCC. We moreover uncover 3q26.3-q27 high level amplifications in 20% of tumours. Keywords: ArrayCGH, Lung Squamous Cell Carcinoma, 3q26.3, SOX2

2010-02-10 | GSE14859 | GEO

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