Project description:Osteosarcomas are sarcomas of the bone, derived from osteoblasts or their precursors, with a high propensity to metastasize. Osteosarcoma is associated with massive genomic instability, making it problematic to identify driver genes using human tumors or prototypical mouse models, many of which involve loss of Trp53 function. To identify the genes driving osteosarcoma development and metastasis, we performed a Sleeping Beauty (SB) transposon-based forward genetic screen in mice with and without somatic loss of Trp53. Common insertion site (CIS) analysis of 119 primary tumors and 134 metastatic nodules identified 232 sites associated with osteosarcoma development and 43 sites associated with metastasis, respectively. Analysis of CIS-associated genes identified numerous known and new osteosarcoma-associated genes enriched in the ErbB, PI3K-AKT-mTOR and MAPK signaling pathways. Lastly, we identified several oncogenes involved in axon guidance, including Sema4d and Sema6d, which we functionally validated as oncogenes in human osteosarcoma.

| S-EPMC4767150 | biostudies-literature

Multi-component epigenetic control of pro-invasive genes in cancer cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2010-01-05 | E-GEOD-18899 | biostudies-arrayexpress

Genome-wide gene expression profiling of mesenchymal stem cells, osteosarcoma cells, and osteosarcoma cell lines.

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2012-12-19 | E-GEOD-42352 | biostudies-arrayexpress

Temporal chromatin accessibility changes define transcriptional states essential for osteosarcoma metastasis

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-09-15 | GSE215765 | GEO