GEO DataSets

Analysis of pancreatic ductal adenocarcinoma (PDAC) tumors from PKT; αSMA-tk+ transgenics injected daily with ganciclovir at 4 to 4.5 weeks of age for 14 days or less to selectively deplete αSMA+ myofibroblasts. Results provide insight into the role of αSMA+ myofibroblasts in early-stage PDAC.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL6887

Series:

GSE52812

6 Samples

Download data

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

Organism:

Mus musculus

Type:

Expression profiling by array; Expression profiling by high throughput sequencing

Platforms:

GPL6887 GPL15907

4 Samples

Download data: TXT

(Submitter supplied) Analysis of differentially expressed genes in CAF associated with PDAC vs NF. Genetically engineered mice with spontaneous pancreas cancer were generated. Their genotype is Ptfa-cre/+:LSL KrasG12D/+;Tgfrb2flox/flox. Cancer associated fibroblasts were expanded in vitro from the tumors of these mice (CAF). Normal fibroblasts (NF) were also expanded from normal pancreas of mice. The experiement consists in comparing the expression profile of CAF vs. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15907

2 Samples

Download data: TXT, XLSX

(Submitter supplied) Analysis of differentially expressed genes in CAF associated with PDAC vs NF

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

2 Samples

Download data: TXT

(Submitter supplied) Analysis of myofibroblast ablation at the gene expression level of PDAC tumors.

Organism:

Mus musculus

Type:

Expression profiling by array

Datasets:

GDS5820 GDS5821 GDS5822

Platform:

GPL6887

15 Samples

Download data: TXT

Analysis of pancreatic ductal adenocarcinoma (PDAC) tumors from PKT; αSMA-tk+ transgenics injected daily with ganciclovir at 6 weeks of age for 10 days or less to deplete αSMA+ myofibroblasts and treated with anti-CTLA4. Results provide insight into molecular basis of anti-CTLA4 therapy in PDAC.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 agent, 2 protocol sets

Platform:

GPL6887

Series:

GSE52812

9 Samples

Download data

Analysis of pancreatic ductal adenocarcinoma (PDAC) tumors from PKT; αSMA-tk+ transgenics injected daily with ganciclovir at 6 weeks of age for 10 days or less to selectively deplete αSMA+ myofibroblasts. Results provide insight into the role of αSMA+ myofibroblasts in late-stage PDAC.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL6887

Series:

GSE52812

6 Samples

Download data

(Submitter supplied) We employed dual-recombinase genetic mouse models of spontaneous PDAC mice (KPPF;Col1smaKO) to delete Col1 (type I collagen) specifically in myofibroblasts, in comparison with control KPPF mice. Single-cell RNA-sequencing analyses were performed on unfractionated live cell mixtures from pancreatic tumors of KPPF mice and KPPF;Col1smaKO mice, to investigate the impact of myofibroblast-specific Col1 deletion on tumor microenvironment.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

4 Samples

Download data: CSV

(Submitter supplied) RNA sequencing analysis on tumor samples from two groups of mice (1) KPPF;Col1smaKO myfibroblast-collagen1 knockout group and (2) KPPF control group. Collagen1 is the most abundant extracellular matrix protein component in desmoplastic pancreatic tumors. In this study, we establish the transgenic mouse model KPPF;Col1smaKO mice with pancreatic tumors deleted for myofibroblast-derived collagen1. Then we use RNA-seq to examine the global changes of gene expression profile in tumors of KPPF;Col1smaKO mice (as compared to control KPPF mice).

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

7 Samples

Download data: TXT

(Submitter supplied) Background & Aims: Pancreatic ductal adenocarcinomas (PDAC) are characterized by fibrosis and an abundance of cancer-associated fibroblasts (CAFs). We investigated strategies to disrupt interactions among CAFs, the immune system, and cancer cells, focusing on adhesion molecule cadherin 11 (CDH11), which has been associated with other fibrotic disorders and is expressed by activated fibroblasts. Methods: We compared levels of CDH11 mRNA in human pancreatitis and pancreatic cancer tissues and cells, compared with normal pancreas, and measured levels of CDH11 protein in human and mouse pancreatic lesions and normal tissues. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21103

12 Samples

Download data: TXT

(Submitter supplied) Targeting the desmoplastic stroma of pancreatic ductal adenocarcinoma (PDAC) holds promise to augment the effect of chemotherapy, but so far success remains limited in the clinic. Furthermore, preclinical mouse models suggest that near-depletion of cancer-associated fibroblasts (CAFs) carries a risk of accelerating PDAC progression. These concerns underscore the need to concurrently target the key signaling mechanisms that drive the malignant attributes of both CAFs and PDAC cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10904

24 Samples

Download data: TXT

(Submitter supplied) Comparison of global gene expression profilles between control and Meflin(islr)-depleted mouse MSCs

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL13912

4 Samples

Download data: TXT

(Submitter supplied) Single-agent immunotherapy has achieved limited clinical benefit to date in patients with pancreatic ductal adenocarcinoma (PDAC). This may be a result of the presence of a uniquely immunosuppressive tumor microenvironment (TME). Critical obstacles to immunotherapy in PDAC tumors include a high number of tumor-associated immunosuppressive cells and a uniquely desmoplastic stroma that functions as a barrier to T cell infiltration. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL21163

12 Samples

Download data: TXT

(Submitter supplied) We used a dual recombinase mouse model to delete Hif2a in α-smooth muscle actin (αSMA)-expressing cancer-associated fibroblasts (CAFs) arising within spontaneous pancreatic tumors. The effects of CAF-Hif2a expression on tumor progression and composition of the tumor microenvironment were evaluated by Kaplan-Meier analysis, quantitative real-time polymerase chain reaction, histology, immunostaining, and by both bulk and single-cell RNA sequencing. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

6 Samples

Download data: TAR

(Submitter supplied) Background & Aims. Pancreatic ductal adenocarcinoma (PDAC) has a hypoxic, immunosuppressive stroma, which contributes to its resistance to immune checkpoint blockade therapies. The hypoxia-inducible factors (HIFs) mediate the cellular response to hypoxia, but their role within the PDAC tumor microenvironment remains unknown. Methods. We used a dual recombinase mouse model to delete Hif1a or Hif2a in α-smooth muscle actin (αSMA)-expressing cancer-associated fibroblasts (CAFs) arising within spontaneous pancreatic tumors. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21103

8 Samples

Download data: CSV

(Submitter supplied) We report single cell RNA sequencing of pancreatic enzymatically digested whole, fresh tumors from a genetically engineered mouse model (GEMM) of pancreatic adenocarcinoma. This GEMM consists of pancreas specific expression of oncogenic Kras (Kras-G12D) in addition of homozygous deletion of the ring finger domain (catalytic domain) of Rnf43. This GEMM is termed 'KRC'.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

10 Samples

Download data: TAR

(Submitter supplied) Genetically engineered mice developed spontaneous pancreas cancer (Pdx-Cre;LSL-KRASG12D;P53Mut). Mice were also engineered to develop similar spontaneous pancreas cancer without Twist or Snail (conditional gene knockout). The pancreas tumors were harvested and analysed for gene expression profiles comparisons.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

9 Samples

Download data: TXT

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

Organism:

Homo sapiens; synthetic construct

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platforms:

GPL17586 GPL19117

54 Samples

Download data: CEL

(Submitter supplied) Currently it is unknown whether activation of recruited or resident pancreatic fibroblasts, including pancreatic stellate cells activation, create a common “fibroblast-activated phenotype” indistinguishable from their associated-diseased microenvironment . Using a combination of microRNA and mRNA profiling of fibroblasts isolated from pancreatic ductal adenocarcinoma (PDAC), chronic pancreatitis (CP), periampullary cancer (PAT) and areas of histologically normal pancreas, followed by comprehensive validation, we show that activated fibroblasts derived from different pancreatic disease types are considerably distinct.

Organism:

Homo sapiens; synthetic construct

Type:

Non-coding RNA profiling by array

Platform:

GPL19117

27 Samples

Download data: CEL

(Submitter supplied) Currently it is unknown whether activation of recruited or resident pancreatic fibroblasts, including pancreatic stellate cells activation, create a common “fibroblast-activated phenotype” indistinguishable from their associated-diseased microenvironment . Using a combination of microRNA and mRNA profiling of fibroblasts isolated from pancreatic ductal adenocarcinoma (PDAC), chronic pancreatitis (CP), periampullary cancer (PAT) and areas of histologically normal pancreas, followed by comprehensive validation, we show that activated fibroblasts derived from different pancreatic disease types are considerably distinct.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17586

27 Samples

Download data: CEL