GEO DataSets

(Submitter supplied) The specific ablation of Rb1 gene in epidermis (RbF/F;K14cre) promotes proliferation and altered differentiation but does not produce spontaneous tumour development. These phenotypic changes are associated with increased expression of E2F members and E2F-dependent transcriptional activity. Here, we have focused on the possible dependence on E2F1 gene function. We have generated mice that lack Rb1 in epidermis in an inducible manner (RbF/F;K14creERTM). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

20 Samples

Download data: CEL

(Submitter supplied) Comparison of control wild-type and Rb-/- prostate epithelial cell lines under untreated and serum-free conditions Keywords = prostate Keywords = epithelial Keywords: other

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS575

Platform:

GPL81

9 Samples

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Comparison of retinoblastoma-deficient (Rb-/-) and control wild type prostate epithelial cell lines maintained in RPMI-1640 medium supplemented with 5% fetal bovine serum, or without serum for 48 hours.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 cell line, 2 growth protocol sets

Platform:

GPL81

Series:

GSE934

9 Samples

Download data

(Submitter supplied) The epidermal-specific ablation of Rb gene leads to increased proliferation, aberrant differentiation, and the disengagement of these processes in vivo and in vitro. These differences in phenotype are more severe with the loss of p107, demonstrating the functional compensation between pRb and p107. As p107 and p130 also exert overlapping functions in epidermis, we have generated Rb(F19/F19)K14cre;Rbl2-/- (pRb-;p130-) mice to analyze possible functional redundancies between pRb and p130. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

10 Samples

Download data: CEL

(Submitter supplied) The squamous cell carcinomas represent the aggressive type of non melanoma skin cancer, the most frequent malignancy among human population. We have studied here the possible relationship between these two pathways in skin using epidermal-specific mutant mice. Loss of p53, but not pRb, produces spontaneous tumor development, indicating that, contrary to pRb, p53 is the predominant tumor suppressor acting in mouse epidermis. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

8 Samples

Download data: CEL

(Submitter supplied) The specific ablation of Rb1 gene in stratified epithelia (RbF/F;K14cre) promotes proliferation and altered differentiation but is insufficient to produce spontaneous tumors. The pRb relative, p107, compensates some of the functions of pRb in these tissues, however RbF/F;K14cre;p107-/- mice die postnatally. Acute pRb loss in stratified epithelia, using an inducible mouse model (RbF/F;K14creERTM), shows that p107 exerts specific tumor suppressor functions in its absence. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

14 Samples

Download data: CEL

(Submitter supplied) The specific deletion of Rb gene in epidermis leads to altered proliferation and differentiation, but not to the development of spontaneous tumors. Our previous data have demonstrated the existence of a functional compensation of Rb loss by Rbl1 (p107) in as the phenotypic differences with respect to controls are intensified. However, the possible evolution of this aggravated phenotype, in particular in relationship with tumorigenesis, has not been evaluated due to the premature death of the double deficient mice. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS3176

Platform:

GPL339

8 Samples

Download data: CEL

Analysis of skin grafts lacking pRb, p107, or both genes. pRb and p107 belong to the retinoblastoma family important in cell cycle regulation. Results provide insight into the role of p107 in epidermal tumor development when pRb is absent.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 4 genotype/variation sets

Platform:

GPL339

Series:

GSE9567

8 Samples

Download data: CEL

(Submitter supplied) E2F/RB activity is altered in most human tumors. The retinoblastoma family of proteins plays a key role in regulating the progression of the cell cycle from the G1 to S phases. This is achieved through negative regulation of E2F transcription factors, important positive regulators of cell cycle entry. E2F family members are divided in two groups: activators (E2F1-E2F3a) and repressors (E2F3b-E2F8). E2F4 accounts for a large part of the E2F activity and is a main E2F repressor member in vivo. Perturbations in the balance from quiescence towards proliferation contribute to increased mitotic gene expression levels frequently observed in cancer. We have previously reported that combined Rb1-Rbl1 and Rb1-E2F1 ablation in epidermis produces important alterations in epidermal proliferation and differentiation, leading to tumor development. However, the possible roles of E2F4 in this context are still to be determined. Here we show the absence of any discernible phenotype in the skin of mice lacking of E2F4. In contrast, the inducible loss of Rb1 in the epidermis of E2F4-null mice produced multiple skin abnormalities including altered differentiation and proliferation, spontaneous wounds, carcinoma in situ development and stem cell perturbations. All these phenotypic alterations are associated with extensive gene expression changes, the induction of c-myc and the Akt activation. Moreover, the whole transcriptome analyses in comparison with previous models generated also revealed extensive changes in multiple repressive complexes and in transcription factor activity. These results point to E2F4 as a master regulator in multiple steps of epidermal homeostasis in Rb1 absence.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

8 Samples

Download data: CEL

(Submitter supplied) The retinoblastoma protein (RB) is preferentially lost in the progression to castrate resistant prostate cancer (CRPC). However, the alterations associated with such loss have been scantly described. Current findings have identified a novel E2F1 associated cistrome and transcriptome that is associated with RB loss in PCa. In order to determine the contribution of chromatin accessibility to alterations in E2F1 activity, ATAC-Seq was performed.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

6 Samples

Download data: BED

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

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

14 Samples

Download data: BED

(Submitter supplied) The retinoblastoma protein (RB) is preferentially lost in the progression to castrate resistant prostate cancer (CRPC). However, the alterations associated with such loss have been scantly described. The current study aims to provide molecular mechanisms underlying Rb loss-driven CRPC phenotypes.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

2 Samples

Download data: BED

(Submitter supplied) The retinoblastoma protein (RB) is preferentially lost in the progression to castrate resistant prostate cancer (CRPC). However, the alterations associated with such loss have been scantly described. The current study aims to provide molecular mechanisms underlying Rb loss-driven CRPC phenotypes

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

6 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

16 Samples

Download data: BED

(Submitter supplied) These studies examine the consequence of RB loss on E2F1 function across prostate cancer progression.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

4 Samples

Download data: BED

(Submitter supplied) These studies examine the biological networks altered after RB loss across prostate cancer progression.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

12 Samples

Download data: TXT