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Human STAV cells from AB and FCS sublines grown in cell culture or as xenografts

ABSTRACT: Array comparative genomic hybridization (aCGH) analysis of chromosome 3 in human mesothelioma cells grown in cell culture or as xenografts

ORGANISM(S): Homo sapiens

PROVIDER: GSE48019 | GEO | 2013/06/18

SECONDARY ACCESSION(S): PRJNA208681

REPOSITORIES: GEO

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Human STAV cells from AB and FCS sublines grown in cell culture or as xenografts

Project description:Array comparative genomic hybridization (aCGH) analysis of chromosome 3 in human mesothelioma cells grown in cell culture or as xenografts Comparison between cell sublines and cell culture vs xenograft. 1 biological sample for each condition, 5 replicate measures.

2013-06-18 | E-GEOD-48019 | biostudies-arrayexpress

Mesothelioma xenografts in nude mice: PBS treated versus pirfenidone treated

Project description:Background: Malignant mesothelioma is an aggressive cancer with poor prognosis. It is characterized by prominent extracellular matrix, mesenchymal tumor cell phenotypes and chemoresistance. In this study, the ability of pirfenidone to alter mesothelioma cell proliferation and migration as well as mesothelioma tumor microenvironment was evaluated. Pirfenidone is an anti-fibrotic drug used in the treatment of idiopathic pulmonary fibrosis and has also anti-proliferative activities. Aims: Transcriptional profiling using RNA sequencing of human mesothelioma xenograft tumors treated with PBS or pirfenidone. Aim was to compare extracellular matrix and fibrosis related genes. Results: Treatment of mice harboring mesothelioma xenografts with pirfenidone alone did not reduce tumor proliferation in vivo. However, pirfenidone modified the tumor microenvironment by reducing the expression of extracellular matrix associated genes. In addition, GREM1 expression was downregulated by pirfenidone in vivo. Conclusion: By reducing two major upregulated pathways in mesothelioma and by targeting tumor cells and the microenvironment pirfenidone may present a novel anti-fibrotic and anti-cancer adjuvant therapy for mesothelioma.

2018-12-14 | GSE113803 | GEO

Conditional expression of sh-YAP1 modulates YAP1/TEAD-dependent transcription and causes regression of established human malignant mesothelioma MSTO-211H [sh-YAP1] xenografts.

Project description:We investigate the dependence of human malignant pleural mesothelioma on a functional YAP1-TEAD transcription factor complex to maintain fully established tumors in vivo. We show that, in a dysfunctional Hippo genetic background, downregulation of YAP1 by shRNA results in modulation of YAP1/TEAD-dependent gene expression and regression of established tumor xenografts. Our data demonstrate that, in the context of a mutated Hippo pathway, YAP1 activity is essential to maintain the growth of mesothelioma cells in vivo, thus validating the concept of inhibiting the activated YAP1/TEAD complex for the treatment of malignant pleural mesothelioma patients.

2022-02-17 | GSE196672 | GEO

Array Comparative Genomic Hybridization of Pancreatic Xenografts and Cell Lines

Project description:Array Comparative Genomic Hybridization (aCGH) of 70 pancreatic ductal adenocarcinoma (PDAC) samples was performed on Agilent 244K CGH arrays in order to find common genomic aberrations for cancer gene discovery. Additionally, matched expression profiling on Agilent 44K arrays was performed. Common copy number aberrations were identified in order to identify a list of putative cancer genes. Expression profiling data was used to further enrich this list of putative cancer genes for more likely candidates. Last, the most promising candidates were functionally interrogated using RNA interference-mediated knockdown to mimic loss. Well-known PDAC cancer genes were observed as amplified (KRAS and MYC) and deleted (CDKN2A, TGFBR2, SMAD4, and MAP2K4). 70 tumor samples (48 xenografts, 22 cell lines). 2-color arrays hybridized against a common reference pool of genomic DNA from 8 normal individuals. This dataset represents the aCGH component of the study.

2011-12-15 | E-GEOD-25273 | biostudies-arrayexpress

Conditional expression of a dominant negative-TEAD2 construct modulates YAP1/TEAD-dependent transcription and arrests growth of human malignant mesothelioma MSTO-211H [TEAD2-dn] xenografts.

Project description:We investigate the dependence of human malignant pleural mesothelioma on a functional YAP1-TEAD transcription factor complex to maintain fully established tumors in vivo. We show that, in a dysfunctional Hippo genetic background, expression of a dominant negative TEAD2 modulates YAP1/TEAD-dependent gene expression and inhibits growth of established tumor xenografts. Our data demonstrate that, in the context of a mutated Hippo pathway, TEAD2 activity is essential to maintain the growth of mesothelioma tumors in vivo, thus validating the concept of inhibiting the activated YAP1/TEAD complex for the treatment of malignant pleural mesothelioma patients.

2022-02-17 | GSE196691 | GEO

Homo sapiens

Project description:Mesothelioma tumor aCGH profiles

| PRJNA142825 | ENA

Mesothelioma xenografts in nude mice: PBS treated versus pirfenidone treated

Project description:Mesothelioma xenografts in nude mice: PBS treated versus pirfenidone treated

| PRJNA454010 | ENA

Effects of mitochondrial DNA on the gene expression profiles of human cells grown in culture and in tumor xenografts

Project description:Interactions between the gene products encoded by the mitochondrial and nuclear genomes play critical roles in normal eukaryotic cellular function. Here, we characterized the metabolic and transcriptional properties of A549 lung cancer cells and their isogenic mitochondrial DNA (mtDNA)-depleted rho zero counterparts grown in cell culture and as tumor xenografts in immune-deficient mice. A manuscript summarizing our conclusions is under review. Keywords: genetic modification and culture conditions

2008-04-18 | GSE10957 | GEO

Expression Profiling of Pancreatic Xenografts and Cell Lines

Project description:Expression profiling of 70 Pancreatic Ductal Adenocarcinoma (PDAC) samples was performed on Agilent 44K expression arrays for cancer gene discovery. Additionally, matched aCGH on Agilent 244K arrays was performed. These two datasets were integrated in order to identify driver mutations leading to pancreatic cancer. Promising candidates were interrogated further using functional studies. 68 tumor samples (48 xenografts, 20 cell lines). 2 color arrays hybridized against a common reference pool of RNA from 11 cancer cell lines

2011-12-15 | E-GEOD-26088 | biostudies-arrayexpress

Human Embryonic Stem Cell Sublines

Project description:Human embryonic stem (ES) cell lines acquire recurrent karyotypic abnormalities that may promote growth and survival in long-term culture. Cells with these abnormalities are often present at low levels in human ES cell cultures, requiring subcloning for isolation and analyses. We have developed a rapid method to isolate either abnormal or normal clones from karyotypically mosaic human ES cell cultures that we call Genetic Diagnosis at Passage (G-DAP). We have used this technique to isolate three distinct abnormal sublines from H9 human ES cells in continuous culture. These sublines were characterized by G-banding, fluorescence in situ hybridization (FISH), spectral karyotyping (SKY), and array comparative genomic hybridization (aCGH). One subline (H9.DT) has, as it’s only abnormality, a duplication of 12p capped by a 5q subtelomere. A related subline (H9.TSF) has an additional copy of the derivative chromosome 12, partial trisomy of 17q, and trisomy 14. The third subline (H9.DE) has an interstitial deletion of 18q as the sole anomaly. Despite these karyotypic abnormalities, all three sublines retain markers of the undifferentiated state. The subline H9.TSF demonstrated the ability to form embryoid bodies consisting of all three germ layers. Significantly, H9.DT and H9.TSF sublines show a classic karyotype progression that mirrors that seen in both hematopoietic and solid tumors. This progression was accompanied by an impressive increase in growth potential. The isolation of human ES cell sublines with clonal cytogenetic abnormalities provides a valuable tool for study of factors that promote in vitro genetic changes and for analysis of mechanisms of aneuploidy related to genetic progression found in human cancers.

2008-07-18 | GSE12119 | GEO

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