A Sleeping Beauty forward genetic screen identifies new genes and pathways driving osteosarcoma development and metastasis

作者：Moriarity Branden S; Otto George M; Rahrmann Eric P; Rathe Susan K; Wolf Natalie K; Weg Madison T; Manlove Luke A; LaRue Rebecca S; Temiz Nuri A; Molyneux Sam D; Choi Kwangmin; Holly Kevin J; Sarver Aaron L; Scott Milcah C; Forster Colleen L; Modiano Jaime F; Khanna Chand; Hewitt Stephen M; Khokha Rama; Yang Yi; Gorlick Richard; Dyer Michael A; Largaespada David A^*

来源：Nature Genetics, 2015, 47(6): 615-624.

DOI：10.1038/ng.3293

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.

• 出版日期2015-6
• 单位北京大学