Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

10 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

SNP array analysis of lung cancer NCI-H1395, diluted to different tumor cell concentrations

ABSTRACT: In vitro mix of DNA from patient-matched lung cancer and blood cell lines, representing 30,50,70,100% tumor cell tissue, analyzed on Affymetrix 6.0 arrays. Lung cancer cell line H-1395 and patient-matched blood cell line BL1395 were obtained from ATCC and cultured according to their recommendations. DNA extraction was performed using the DNeasy Tissue Kit (Qiagen, Hilden, Germany). DNA from patient-matched Lung cancer and Blood cell lines NCI-H1395 and NCI-BL1395 were mixed to simulate tumor tissue with 30,50,70,100% cancer cells. The DNA ratio was adjusted to compensate for NCI-H1395 being nearly triploid. DNA was analyzed on Affymetrix SNP6.0 microarrays according to the manufacturer's protocol.

ORGANISM(S): Homo sapiens

SUBMITTER: Anders Isaksson

PROVIDER: E-GEOD-29172 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Allele-specific copy number analysis of tumor samples with aneuploidy and tumor heterogeneity

Project description:Chromosomal aberrations were studied both in a lung cancer cell line and colorectal cancer tumor samples. Results were verified by SKY karyotypes and by DNA ploidy analysis. The sensitivity of detecting chromosomal aberrations in tumor samples was evaluated by analyzing data from simulated mixtures of the lung cancer cell line H1395 and the normal cell line 1395BL from the same patient. Copy number analysis is presented on 12 colorectal cancer tumor samples and on in silico dilutions of a lung cancer cell line and its patient-matched blood cell line.

2011-09-08 | E-GEOD-26302 | biostudies-arrayexpress

Affymetrix SNP array data for ovarian cancer cells OVCAR-3 and FU-OV-1

Project description:A subset of ovarian cancer are characterized by 19q12 amplification. To perform funtional studies of this amplicon the profile has been determined by SNP analysis. Affymetrix SNP arrays were performed according to the manufacturer's directions on genomic DNA extracted from ovarian cancer cell lines OVCAR-3 and FU-OV-1

2010-12-24 | E-GEOD-26301 | biostudies-arrayexpress

Gene Copy Number Aberrations are Associated with Survival in Histological Subgroups of Non-Small Cell Lung Cancer (copy number data)

Project description:Hypothesis: Non-small cell lung cancer (NSCLC) is characterized by a multitude of genetic aberrations with unknown clinical impact. In this study, we aimed to identify gene copy number changes that correlate with clinical outcome in NSCLC. To maximize the chance to identify clinically relevant events, we applied a strategy involving two prognostically extreme patient groups. Results: Genetic aberrations were strongly associated with tumor histology. In adenocarcinoma (n=50), gene copy number gains on chromosome 8q21-q24.3 (177 genes) were more frequent in long-term survivors. In squamous cell carcinoma (n=28), gains on chromosome 14q23.1-24.3 (133 genes) were associated with shorter survival, whereas losses in a neighboring region, 14q31.1-32.33 (110 genes), correlated with favorable outcome. In accordance with copy number gains and losses, mRNA expression levels of corresponding genes were increased or decreased, respectively. Conclusion: Comprehensive tumor profiling permits the integration of genomic, histologic and clinical data. We identified gene copy number gains and losses, with corresponding changes in mRNA levels, that were associated with prognosis in adenocarcinoma and squamous cell carcinoma of the lung. Short-term (<20 months; n=53) and long-term survivors (>58 months;n=47) were selected from a clinically well-characterized NSCLC patient cohort with available fresh-frozen tumor specimens. The samples were analyzed using high-resolution SNP-array technology. The molecular data was combined with information on clinical parameters.

2011-11-01 | E-GEOD-28572 | biostudies-arrayexpress

Gene Copy Number Aberrations are Associated with Survival in Histological Subgroups of Non-Small Cell Lung Cancer

Project description:This SuperSeries is composed of the following subset Series: GSE28571: Gene Copy Number Aberrations are Associated with Survival in Histological Subgroups of Non-Small Cell Lung Cancer (expression data) GSE28572: Gene Copy Number Aberrations are Associated with Survival in Histological Subgroups of Non-Small Cell Lung Cancer (copy number data) Refer to individual Series

2011-11-01 | E-GEOD-28582 | biostudies-arrayexpress

SNP array analysis of lung cancer NCI-H1395, diluted to different tumor cell concentrations

Project description:In vitro mix of DNA from patient-matched lung cancer and blood cell lines, representing 30,50,70,100% tumor cell tissue, analyzed on Affymetrix 6.0 arrays.

2011-09-09 | GSE29172 | GEO

Single-nucleotide polymorphism array analysis reveals distinct chromosomal aberrations in breast cancer tumors according to the circulating tumor cells status

Project description:Recent technological advances have made it possible to detect circulating breast cancer cells as precursors of distant metastasis and as prognosis marker in nonmetastatic breast cancer patients. Association of circulating tumor cells (CTCs) with molecular alteration in the primary tumor is not widely explored. We reported differential profile of altered genome, copy number alteration and copy-neutral loss of heterogeneity in 14 primary tumors when comparing patients with CTCs+ versus CTCs- using single-nucleotide polymorphism array. The most prevalent copy number alteration in CTCs+ patients was at 8q and particularly at the cytoband 8q24 (MYC loci). As the role of MYC in the process of tumor cell invasion and migration is controversial, we further validated in a larger series of patients whether altered MYC (amplification or gained) in primary tumors was correlated with the presence of CTCs in peripheral blood (as a surrogate of micrometastais).Â No correlation between MYC alteration and presence of CTCs was observed, providing clinical support to the recent data that MYC suppresses cancer metastasis or at least suggesting that MYC alteration could be contributory but insufficient for the generation of CTCs. This molecular association needs to be further characterized in preclinical model and especially clinically. We analyzed CN and LOH of CTC+ and CTC-

2014-11-19 | E-GEOD-43149 | biostudies-arrayexpress

DNA methylation profiling of lung adenocarcinomas and patient-matched non-malignant lung

Project description:DNA methylation profiling of lung adenocarcinomas and patient-matched non-malignant lung

| PRJNA578118 | ENA

Gene expression profiling of NCI-H292 cells after treatment of TFAP2C-specific siRNA

Project description:Non-small cell lung cancer (NSCLC) remains one of the leading causes of death worldwide, and thus, new molecular targets need to be identified to improve treatment efficacy. Enhanced TFAP2C expression was found in lung cancer patient tissues and lung cancer cell lines, and its overexpression promoted cell proliferation and cell cycle progression. We conducted microarrays to find the possible downstream effectors regulated by TFAP2C which could play key roles in lung tumorigenesis. Two total RNA samples, extracted from NCI-H292 cells treated with or without TFAP2C siRNA, were analyzed by Affymetrix microarray.

2016-03-16 | E-GEOD-79228 | biostudies-arrayexpress

Widespread somatic L1 retrotransposition occurs early during gastrointestinal cancer evolution

Project description:Somatic L1 retrotransposition events have been shown to occur in epithelial cancers1-8. Here, we attempted to determine how early somatic L1 insertions occurred during the development of gastrointestinal (GI) cancers. Using L1-targeted resequencing (L1-seq), we studied different stages of four colorectal cancers arising from colonic polyps, seven pancreatic carcinomas, as well as seven gastric cancers. Surprisingly, we found somatic L1 insertions not only in all cancer types and metastases, but also in colonic adenomas, well-known cancer precursors. Some insertions were also present in low quantities in normal GI tissues, occasionally caught in the act of being clonally fixed in the adjacent tumors. Insertions in adenomas and cancers numbered in the hundreds and many were present in multiple tumor sections implying clonal distribution. Our results demonstrate that extensive somatic insertional mutagenesis occurs very early during the development of GI tumors, probably before dysplastic growth. Here we show Human SNP 6.0 Array experiments on DNAs from four colorectal cancer patients (1BV, 2BV, 3BV, and 4BV) with polyps and metastases. Here we characterize the samples for CNVs and compare the samples' CNV status to their respective somatic L1 retrotransposition profile.

2015-08-10 | E-GEOD-63601 | biostudies-arrayexpress

DNA copy number profiling of lung adenocarcinomas and patient-matched non-malignant lung

Project description:DNA copy number profiling of lung adenocarcinomas and patient-matched non-malignant lung

| PRJNA579164 | ENA