GEO DataSets

(Submitter supplied) There is a strong need to develop patient-derived xenograft (PDX) tumor models for studying new treatment options for gastric cancer (GC). With low engraftment success, few collections of GC PDX have been reported and molecular basis of the model establishment remain largely unknown. Here we established n=27 PDX models from n=100 GC tumors and compared their characteristics to GC patient tumors based on the recent work done by ACRG and TCGA, to evaluate the representativeness and relevance of the collection for drug testing. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platform:

GPL6801

62 Samples

Download data: CEL, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome variation profiling by SNP array

Platforms:

GPL570 GPL6801

89 Samples

Download data: CEL

(Submitter supplied) There is a strong need to develop patient-derived xenograft (PDX) tumor models for studying new treatment options for gastric cancer (GC). With low engraftment success, few collections of GC PDX have been reported and molecular basis of the model establishment remain largely unknown. Here we established n=27 PDX models from n=100 GC tumors and compared their characteristics to GC patient tumors based on the recent work done by ACRG and TCGA, to evaluate the representativeness and relevance of the collection for drug testing. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

27 Samples

Download data: CEL

(Submitter supplied) Gastric cancer (GC) is the world's third leading cause of cancer mortality. In spite of significant therapeutic improvement, the clinical outcome for patients with advanced GC is poor; thus, the identification and validation of novel targets is extremely important from a clinical point of view. We generated a wide, multi-level platform of GC models, comprising 100 Patient-derived xenografts (PDXs), primary cell lines and organoids. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

42 Samples

Download data: TXT

(Submitter supplied) Expression profiling of frozen primary and patient derived xenograft gastric cancer

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

102 Samples

Download data: TXT

(Submitter supplied) Recent sequencing analyses have shed light on heterogeneous patterns of genomic aberrations in human gastric cancers (GCs). To explore how individual genetic events translate into cancer phenotypes, we established a biological library consisting of genetically engineered gastric organoids carrying various GC mutations and 37 patient-derived organoid lines, including rare genomically stable GCs. Phenotype analyses of GC organoids revealed divergent genetic and epigenetic routes to gain Wnt and R-spondin niche independency. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL15207

62 Samples

Download data: CEL

(Submitter supplied) Background: Patient-derived xenograft (PDX) models are a useful tool in cancer biology research. However, the number of lung cancer PDXs is limited Results: In the present study, we successfully established ten PDXs, including three adenocarcinoma (AD), six squamous cell carcinoma (SQ) and one large cell carcinoma (LA), from 30 patients with non-small cell lung cancer (NSCLC) (18 AD, 10 SQ, and 2 LA), mainly in SHO mice (Crlj:SHO-PrkdcscidHrhr). more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

12 Samples

Download data: TXT

(Submitter supplied) PURPOSE: Although epidermal growth factor receptor (EGFR) mutated adenocarcinomas initially have very high response rates to EGFR tyrosine kinase inhibitors (TKIs), most atients eventually develop resistance. Patient derived xenografts (PDXs) are considered preferred preclinical models to study the biology of patient tumors. EGFR-mutant PDX models may be valuable tools to study the biology of these tumors and to elucidate mechanisms of resistance to EGFR-targeted therapies. more...

Organism:

Homo sapiens; Mus musculus

Type:

Expression profiling by array

Platform:

GPL14951

25 Samples

Download data: TXT

(Submitter supplied) Although recent advances in high-throughput technology have provided many insights into gastric cancer (GC), few reliable biomarkers for handling diffuse type GC are identified. Here, we aim to identify a signature classifying high risk diffuse type GC. To identify molecular subtypes of diffuse type GC, we generated RNA-seq based transcriptome data, which were generated using normal mucosa and tumor cells from 140 fresh frozen tissues including diffuse type GCs (n = 107). more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

140 Samples

Download data: TXT

(Submitter supplied) We established PDX lines from diffuse type gastric cancers (DGCs). Using these cells, we carried out RNA-seq based transcriptome profiling using 15 stomach samples including three PDX lines (HGC-3, HGC-8, and HGC-20) and normal-looking surrounding tissues. Via comparative analysis between cells and tissues, we identified significant gene set associated with each cell and observed that genes involved in AKT signalling pathway were commonly associated with all PDX lines.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

15 Samples

Download data: TXT

(Submitter supplied) Head and neck squamous cell carcinoma (HNSCC) is a deadly and disfiguring disease for which better systemic therapy is desperately needed. The development of new therapies for HNSCC and the understanding of its biology both depend upon clinically relevant animal models. An increasingly promising xenograft model, the patient derived xenograft (PDX), is developed by surgically implanting tumor tissue directly from a patient into an immunocompromised mouse. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

31 Samples

Download data: CEL

(Submitter supplied) Genome-wide mRNA expression profiles of 70 primary gastric tumors from the Australian patient cohort. Like many cancers, gastric adenocarcinomas (gastric cancers) show considerable heterogeneity between patients. Thus, there is intense interest in using gene expression profiles to discover subtypes of gastric cancers with particular biological properties or therapeutic vulnerabilities. Identification of such subtypes could generate insights into the mechanisms of cancer progression or lay the foundation for personalized treatments. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4198

Platform:

GPL570

70 Samples

Download data: CEL

(Submitter supplied) Genome-wide mRNA expression profiles of 56 primary gastric tumors from the Singapore patient cohort, batch B. Like many cancers, gastric adenocarcinomas (gastric cancers) show considerable heterogeneity between patients. Thus, there is intense interest in using gene expression profiles to discover subtypes of gastric cancers with particular biological properties or therapeutic vulnerabilities. Identification of such subtypes could generate insights into the mechanisms of cancer progression or lay the foundation for personalized treatments. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

56 Samples

Download data: CEL, XLS

(Submitter supplied) Genome-wide DNA copy number profiling of gastric tumors and matched non-maligant samples. The affymetrix SNP6 array was used to obtain DNA copy number profiles in 193 gastric tumors and 98 matched gastric non-malignant samples.

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platform:

GPL6801

291 Samples

Download data: CEL, CNCHP

(Submitter supplied) Genome-wide DNA methylation profiling of gastric tumors and matched gastric non-malignant samples. The Illumina HumanMethylation27 BeadChip was used to obtain DNA methylation profiles across 27,578 CpGs in 203 gastric tumors and 94 matched non-malignant gastric samples.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

297 Samples

Download data: TXT

(Submitter supplied) Genome-wide mRNA expression profiles of 37 unique gastric cancer cell lines (GCCLs). Keywords: gastric cancer, cell culture

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

37 Samples

Download data: CEL

(Submitter supplied) Genome-wide mRNA expression profiles of 200 primary gastric tumors from the Singapore patient cohort. Gastric cancer (GC) is the second leading cause of global cancer mortality, with individual gastric tumors displaying significant heterogeneity in their deregulation of various oncogenic pathways. We aim to identify major oncogenic pathways in GC that robustly impact patient survival and treatment response. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

200 Samples

Download data: CEL, XLS

Analysis of 70 primary gastric tumors representing 3 subtypes (invasive, metabolic, and proliferative) from the Australian patient cohort (AU-2). Gastric adenocarcinomas show sizable heterogeneity between patients. Results provide insight into molecular characterization of gastric cancer subtypes.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 3 disease state sets

Platform:

GPL570

Series:

GSE35809

70 Samples

Download data: CEL

(Submitter supplied) To identify genes, whose loss of function confers drug resistance to lapatinib, we performed a genome-wide CRISPR/Cas9 gene knockout screening in two human gastric cancer cell lines harboring HER2 amplification, N87 and OE19, respectively. By performing this study, we identiied a goup of genes associated with lapatinib resistance in HER2-amplified gastric cancer.

Organism:

Homo sapiens

Type:

Other

Platform:

GPL11154

12 Samples

Download data: TXT