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Global analysis of miRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE

ABSTRACT: Human prostate CWR22 OT-tumor cells were prospectively purified for expression of various stem cell markers (TRA-1-60/CD151/CD166/EpCAM/CD44/α2-Integrin). Unsorted total tumor cells or the additional marker positive cells that do not manifest stem-like characteristics were used as control. All these cells were subjected to molecular profiling of total RNA expression and the fold change data are tabulated according to S/TFE of the purified cells in relation to their control. Notes: Low S/TFE = Low sphere and tumor forming efficiency; Moderate S/TFE = Moderate sphere and tumor forming efficiency; High S/TFE = High sphere and tumor forming efficiency; FDR* = False Discovery Rate; FC = Fold Change; Signal = Average Expression Signal Level. Low-S/TFE, Moderate S/TFE, High S/TFE data sets were compared to No S/TFE control sets

ORGANISM(S): Homo sapiens

SUBMITTER: Nicholas Socci

PROVIDER: E-GEOD-25691 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Global analysis of mRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE

Project description:Human prostate CWR22 OT-tumor cells were prospectively purified for expression of various stem cell markers (TRA-1-60/CD151/CD166/EpCAM/CD44/α2-Integrin). Unsorted total tumor cells or the additional marker positive cells that do not manifest stem-like characteristics were used as control. All these cells were subjected to molecular profiling of total RNA expression and the fold change data are tabulated according to S/TFE of the purified cells in relation to their control. Notes: Low S/TFE = Low sphere and tumor forming efficiency; Moderate S/TFE = Moderate sphere and tumor forming efficiency; High S/TFE = High sphere and tumor forming efficiency; FDR* = False Discovery Rate; FC = Fold Change; Signal = Average Expression Signal Level. Low-S/TFE, Moderate S/TFE, High S/TFE data sets were compared to No S/TFE control sets

2010-12-06 | E-GEOD-25690 | biostudies-arrayexpress

Global analysis of mRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE

2010-12-06 | GSE25690 | GEO

Global analysis of miRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE

2010-12-06 | GSE25691 | GEO

Expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE

Project description:This SuperSeries is composed of the following subset Series: GSE25690: Global analysis of mRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE. GSE25691: Global analysis of miRNA expression in prospectively purified human prostate orthotopic xenograft tumor cells with varying S/TFE. Refer to individual Series

2010-12-06 | E-GEOD-25692 | biostudies-arrayexpress

Expression data of 3 prostate cancer stem cell primary lines comparing spheres and parental/adherent culture

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2010-01-01 | E-GEOD-19713 | biostudies-arrayexpress

Prostasphere-forming cells of human prostate cancer cell LNCaP: Control vs. Hormone treated

Project description:Transcriptional profiling of LNCaP prostasphere-forming cells, comparing control untreated sphere-forming cells with hormone treated sphere-forming cells. Both estrogen (estradiol) and androgen (R1881) promote the sphere formation of human prostate cancer cell LNCaP. Goal was to determine the effects of hormones on global gene expression of LNCaP sphere-forming cells.

2012-04-24 | GSE37531 | GEO

Prostasphere-forming cells of human prostate cancer cell LNCaP: Control vs. Hormone treated

2012-04-23 | E-GEOD-37531 | biostudies-arrayexpress

Gene expression profiling of Foxr2-induced brain tumors

Project description:The goal of this study is profile gene expression patterns of Foxr2-induced brain tumor cells. Foxr2 overexpression in the brain induced tumor formation in the olfactory bulb (OB) and the brainstem (BS) under the p53 deficient background. Tumor cells were cultured in vitro, which resulted in sphere formation. Sphere-forming cells were used for gene expression analysis. Immortalized primary astroglia (AG) was analzyed for comparison.

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Identification of miRNAs correlated with Rb-depletion induced spherogenesis.

Project description:We found that Rb inactivation induces sphere-forming activity under 3D culture condition in primary soft tissue sarcoma cells derived from p53 null mice. To elucidate molecular mechanism, we employed microRNA array as a discovery platform to identify miRNAs correlated with Rb-depeltion induced sphere-forming cells. To enrich sphere-forming cells and make the culture condition equivalent to that of parental cells (Primary cells), we replated sphere-forming cells on normal dishes (Rb shRNA Secondary cells), and obtained total RNA soon after replating.

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Copy number profiling of putative cancer stem from pleural effusion aspirates from breast cancer patients

Project description:A common symptom during late stage breast cancer disease is pleural effusion, which is related to poor prognosis. In pleural effusions malignant cells can be detected, which indicates a metastatic spread from the primary tumor site. Beside the usefulness for investigation of the metastatic process, it has been a source to isolate cells with putative cancer stem cell (CSC) properties. For this study, pleural effusion aspirate from 25 metastatic breast cancer patients were processed to establish in vitro culture. Patient-derived aspirates were cultured under sphere forming conditions and isolated primary cultures were sorted for cancer stem cell populations ALDH1+ and CD44+CD24-/low and sphere forming efficiency of CSC and non-CSC subpopulation was determined. Unsorted cells had a higher potential to form spheres compared to CSC subpopulations. Subsequently, DNA was isolated from pleural effusions before and after cell sorting, to compare their copy number profiles generated by low-coverage whole genome sequencing to DNA from FFPE primary tumors or bone metastasis. Unbalanced profiles could be detected in four pleural samples before sorting, in two ALDH1+ sorted samples, in one CD44+CD24-/low and in all control samples. Additionally, spheroid culture from one pleural sample could be passaged on and was characterized. Therefore, pleural effusions are an appropriate media for enrichment of putative CSC. However, low-coverage sequencing is difficult due to low quantities of abnormal cells compared to normal cells.

| EGAS00001002343 | EGA

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