Filters
Technology
Platform
GSE107497
Homo sapiens
18 Downloadable Samples
Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
Expansion for hematopoietic cells from umbilical cord blood is a strategy for use this cell source in clinic transplants, however, it is important to know about the genomic changes that can occur in expanded cells. In order to detect global expression profiles changes in hematopoietic stem and progenitors cells generated in vitro, we analyzed hematopoietics populations obtained by FACS in fresh from umbilical cord blood. HSC (fHSC) was defined as CD34+ CD38- CD71- CD45RA- Lin- and were cocultured with stromal cell line OP-9 plus FL, SCF, IL3, IL6, TPO, GMCSF and G-CSF by 7 days, after time we repurified HSC population by FACS using same immunophenotype (ivHSC). In other hand, fresh erythroid progenitors cells (fEPC) were identified as CD34+CD38+CD71+CD45RA- Lin- and fresh myeloid progenitors cells (fMPC) were identified as CD34+CD38+CD71-CD45RA+Lin-. In vitro progenitors cells (ivEPC and ivMPC) were obtained by culturing fHSC in Stemspan serum-free media plus SCF, TPO, IL6, FL and IL3 by 10 days, after time cells were repurified by FACS using same immunophenotype for fresh progenitors. In vitro generated cells were compared with their corresponding fresh population cells.
Publication Title
Functional Integrity and Gene Expression Profiles of Human Cord Blood-Derived Hematopoietic Stem and Progenitor Cells Generated In Vitro.
Sample Metadata Fields
Specimen part
View Samples- Sus scrofa
- 25 Downloadable Samples
NextSeq 500
Description
RNA-Seq of jejunum for 30 pigs with divergent feed efficiency phenotypes
Publication Title
No associated publication
Sample Metadata Fields
Sex, Specimen part
View Samples- Sus scrofa
- 28 Downloadable Samples
- NextSeq 500
Description
RNASeq of hypothalamus for 30 pigs with divergent feed efficiency phenotypes
Publication Title
No associated publication
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 18 Downloadable Samples
- Illumina HiSeq 4000
Description
The most frequent genetic alterations in melanoma are gain-of-function mutations in BRAF, which result in addiction to the RAF-MEK-ERK signaling pathway. Despite success of RAF and MEK inhibitors in treating BRAFV600 mutant tumors, a major challenge is the inevitable emergence of drug resistance, which often involves reactivation of the MAPK pathway. Interestingly, resistant tumors are often sensitive to drug withdrawal, suggesting that hyperactivation of the MAPK pathway is not tolerated. To further characterize this phenomenon, we generated isogenic models of inducible MAPK hyperactivation in BRAFV600E melanoma cells by overexpression of ERK2. Using this model system, we demonstrated that supra-physiological levels of MAPK signaling led to cell death, which was reversed by MAPK inhibitors. Whereas MAPK pathway inhibition led to cell stasis in BRAFV600E melanoma cells, MAPK hyperactivation induced cytotoxicity. Furthermore, complete tumor regression was observed in an ERK2 overexpressing xenograft model. To identify mediators of MAPK hyperactivation- induced cell death, we conducted a large-scale pooled screen which showed that only shRNAs against BRAF and MAP2K1 rescued loss of cell viability. This suggested that no single downstream ERK2 effector was required, consistent with pleiotropic effects on multiple cellular stress pathways. Intriguingly, the detrimental effect of MAPK hyperactivation could be partially attributed to secreted factors, and more than 100 differentially secreted proteins were identified. The effect of ERK2 overexpression was highly context dependent, as RAS/RAF mutant but not RAS/RAF wildtype melanoma were sensitive to this perturbation. This vulnerability to MAPK hyperactivation raises the possibility of a novel therapeutic approach for RAS/RAF mutant cancers.
Publication Title
No associated publication
Sample Metadata Fields
Sex, Specimen part, Disease, Cell line, Treatment
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
We established gene expression profiles of diagnostic bone marrow samples of monozygotic twins with acute lymphoblastic leukemia. We established technical duplicates for each twin.
Publication Title
Prenatal origin of separate evolution of leukemia in identical twins.
Sample Metadata Fields
Sex, Specimen part, Disease, Disease stage
View Samples- Homo sapiens
- 96 Downloadable Samples
- Affymetrix HT HG-U133+ PM Array Plate (hthgu133pluspm)
Description
Human immature dendritic cells derived from monocytes were activated to become mature dendritic cells by exposure to platebound Collagen I or Collagen. The importance of OSCAR-signalling was evaluated by pre-incubating the immature dendritic cells with an inhibitory monoclonal antibody to the OSCAR receptor, or an isotype control. As a positive control, immature dendritic cells were activated by using LPS. The set-up was examined at 4 hours and 20 hours to evaluate early and late effects of OSCAR signalling.
Publication Title
Collagen induces maturation of human monocyte-derived dendritic cells by signalling through Osteoclast Associated Receptor
Sample Metadata Fields
Specimen part, Subject, Compound, Time
View Samples- Homo sapiens
- 121 Downloadable Samples
Description
To facilitate preclinical translational science, this cohort of patient-derived xenograft (PDX) models of leukemia and lymphoma has undergone molecular characterization with whole transcriptome sequencing, targeted exon sequencing of genes recurrently altered in leukemia and lymphoma, and other approaches. Here we provide the whole transcriptome sequencing data for these PDX models. Related molecular data and de-identified clinical information can be obtained at http://www.proxe.org.
Publication Title
No associated publication
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 76 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
MAP3K11 overexpression in tumors leads to weight loss in the host
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 30 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Post-chemotherapy relapse presents a major unmet medical need in AML where treatment options are limited. We used gene expression profile from 32 AML cell lines to characterize expression difference between responder and non-responders to PIM inhibitors. Our results highlight the importance of STAT5 and MYC in rendering cancer cells sensitive to PIM inhibitors.
Publication Title
No associated publication
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 27 Downloadable Samples
Description
Total RNA sequencing data from primary colorectal tumors, liver metastasis and patient derived xenographs. Persistence of Fusobacterium and co-occuring anaerobic bacteria in human colorectal cancer.
Publication Title
No associated publication
Sample Metadata Fields
No sample metadata fields
View Samples