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Expression data from conventional osteosarcoma compared to primary non-neoplastic osteoblast cells

ABSTRACT: In osteosarcoma patients, the development of metastases, often to the lungs, is the most frequent cause of death. To improve this situation, a deeper understanding of the molecular mechanisms governing osteosarcoma development and dissemination and the identification of novel drug targets for an improved treatment are needed. Towards this aim, we characterized osteosarcoma tissue samples compared to primary osteoblast cells using Affymetrix HG U133A microarrays.

ORGANISM(S): Homo sapiens

PROVIDER: GSE14359 | GEO | 2010/06/30

SECONDARY ACCESSION(S): PRJNA111391

REPOSITORIES: GEO

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Expression data from conventional osteosarcoma compared to primary non-neoplastic osteoblast cells

Project description:In osteosarcoma patients, the development of metastases, often to the lungs, is the most frequent cause of death. To improve this situation, a deeper understanding of the molecular mechanisms governing osteosarcoma development and dissemination and the identification of novel drug targets for an improved treatment are needed. Towards this aim, we characterized osteosarcoma tissue samples compared to primary osteoblast cells using Affymetrix HG U133A microarrays. mRNA from 5 frozen conventional osteosarcoma and 4 osteosarcoma lung metastases tumor samples and mRNA from fresh primary osteoblast cells were extracted and hybridized to HG U133A microarrays.

2010-07-30 | E-GEOD-14359 | biostudies-arrayexpress

Microarray expression profile and functional analysis of circular RNAs in osteosarcoma

Project description:Seven human osteosarcoma cell lines (U2OS, U2OS/MTX300, HOS, MG63, 143B, ZOS, ZOSM) and the human osteoblast hFOB1.19 were included in the study. Microarray based circRNA expression profiles were acquired using the Arraystar Human circRNA Array (8x15K, Arraystar). We identified circRNAs differentially expressed in human osteosarcoma cell lines compared to human osteoblast hFOB1.19 (control).

2017-04-12 | GSE96964 | GEO

Genome-wide analysis of osteosarcoma for comparison to healthy bone tissue

Project description:Analysis of common pediatric osteosarcoma cell lines SaOS2, U2OS and 143B and two patient derived xenograft samples in comparison of osteoblast cell line hFOB1.19.

2022-02-22 | GSE197158 | GEO

Expression profiles osteosarcoma cell lines and MET transformed osteoblast clones

Project description:We studied MET-transformed human primary osteoblasts (MET-HOBs), which we previously turned into osteosarcoma cells by LV driven over-expression of MET oncogene. We obtained distinct MET transformed HOB clones derived from independent events of transgene integration. To characterise the phenotype of the MET-HOB clones we used oligonucleotide microarrays. Expression profiles of MET-HOBs and osteosarcoma cell lines were compared.

2013-02-28 | GSE28252 | GEO

Expression profiles osteosarcoma cell lines and MET transformed osteoblast clones

2013-02-28 | E-GEOD-28252 | biostudies-arrayexpress

Ribosomal protein S3 regulates GLI2-mediated osteosarcoma invasion

Project description:It has been reported that GLI2 promotes proliferation, migration, and invasion of mesenchymal stem cell and osteosarcoma cells. To examine the molecular mechanisms of GLI2-mediated osteosarcoma metastasis, we performed a microarray analysis. The gene encoding ribosomal protein S3 (RPS3) was identified as a target of GLI2. Real-time PCR revealed that RPS3 was upregulated in osteosarcoma cell lines compared with normal osteoblast cells. Knockdown of GLI2 decreased RPS3 expression, whereas forced expression of a constitutively active form of GLI2 upregulated the expression of RPS3. RPS3 knockdown by siRNA decreased the migration and invasion of osteosarcoma cells. Although forced expression of constitutively active GLI2 increased the migration of human mesenchymal stem cells, knockdown of RPS3 reduced the up-regulated migration. In contrast, forced expression of RPS3 increased migration and invasion of osteosarcoma cells. Moreover, reduction of migration by GLI2 knockdown was rescued by forced expression of RPS3. Immunohistochemical analysis showed that RPS3 expression was increased in primary osteosarcoma lesions with lung metastases compared with those without. These findings indicate that GLI2–RPS3 signaling may be a marker of invasive osteosarcoma and a therapeutic target for patients with osteosarcoma.

2012-12-14 | GSE42903 | GEO

Homo sapiens

Project description:Inflammatory bowel disease (HG-U133A)

| PRJNA87261 | ENA

CDK4 overexpression is a predictive biomarker for resistance to conventional chemotherapy in osteosarcoma patients

Project description:CDK4 overexpression is a predictive biomarker for resistance to conventional chemotherapy in osteosarcoma patients

2021-06-01 | GSE154540 | GEO

Generation and characterization of Myc knockin mouse model of osteosarcoma

Project description:To understand the mechanisms that underlie the ability of Myc to alter both the tumor and its surrounding tumor microenvironment (TME) of osteosarcoma, we generated and molecularly characterized an osteoblast-specific Cre-Lox-Stop-Lox;(LSL)-c-MycT58A;p53fl/+ knockin genetically engineered mouse model (GEMM). Phenotypically, the Myc knockin-GEMM had rapid tumor development with a high incidence of metastasis.

2023-06-01 | GSE231821 | GEO

Wnt inhibitory factor 1 (WIF1) is a marker of osteoblastic differentiation stage and is not silenced by DNA methylation in osteosarcoma

Project description:Purpose: We have used microarrays to identify gene expression profiles that distinguish mouse OS cells from normal pre-osteoblast cells and mature osteoblast cells. Methods: Transcriptional profiles of three cell lines derived from tumors from Osx-Cre p53fl/fl Rbfl/fl (fibroblastic OS) mouse model, and from pre-osteoblast cells (Kusa4b10 mouse bone marrow stromal cell line) and osteoblast cells (derived by in vitro differentiation of the Kusab410 mouse bone marrow stromal cell line) were generated by microarray analysis, each in triplicate, using Affymetrix mouse Gene1.0ST arrays. Transcriptional profiles were analyzed in cell lines derived from tumors from a genetically engineered mouse model of human osteosarcoma (Osx-Cre p53fl/fl Rbfl/fl) and osteoblast cells derived from the Kusa4b10 mouse bone marrow stromal cell line, in the undifferentiated state (pre-osteoblasts) and differentiated state (osteoblasts).

2015-01-29 | E-GEOD-63939 | biostudies-arrayexpress

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