TY - JOUR
T1 - Forward genetic screen for malignant peripheral nerve sheath tumor formation identifies new genes and pathways driving tumorigenesis
AU - Rahrmann, Eric P.
AU - Watson, Adrienne L.
AU - Keng, Wee-Keong Vincent
AU - Choi, Kwangmin
AU - Moriarity, Branden S.
AU - Beckmann, Dominic A.
AU - Wolf, Natalie K.
AU - Sarver, Aaron
AU - Collins, Margaret H.
AU - Moertel, Christopher L.
AU - Wallace, Margaret R.
AU - Gel, Bernat
AU - Serra, Eduard
AU - Ratner, Nancy
AU - Largaespada, David A.
PY - 2013/7/1
Y1 - 2013/7/1
N2 - Malignant peripheral nerve sheath tumors (MPNSTs) are sarcomas of Schwann cell lineage origin that occur sporadically or in association with the inherited syndrome neurofibromatosis type 1. To identify genetic drivers of MPNST development, we used the Sleeping Beauty (SB) transposon-based somatic mutagenesis system in mice with somatic loss of transformation-related protein p53 (Trp53) function and/or overexpression of human epidermal growth factor receptor (EGFR). Common insertion site (CIS) analysis of 269 neurofibromas and 106 MPNSTs identified 695 and 87 sites with a statistically significant number of recurrent transposon insertions, respectively. Comparison to human data sets identified new and known driver genes for MPNST formation at these sites. Pairwise co-occurrence analysis of CIS-associated genes identified many cooperating mutations that are enriched in Wnt/β-catenin, PI3K-AKT-mTOR and growth factor receptor signaling pathways. Lastly, we identified several new proto-oncogenes, including Foxr2 (encoding forkhead box R2), which we functionally validated as a proto-oncogene involved in MPNST maintenance.
AB - Malignant peripheral nerve sheath tumors (MPNSTs) are sarcomas of Schwann cell lineage origin that occur sporadically or in association with the inherited syndrome neurofibromatosis type 1. To identify genetic drivers of MPNST development, we used the Sleeping Beauty (SB) transposon-based somatic mutagenesis system in mice with somatic loss of transformation-related protein p53 (Trp53) function and/or overexpression of human epidermal growth factor receptor (EGFR). Common insertion site (CIS) analysis of 269 neurofibromas and 106 MPNSTs identified 695 and 87 sites with a statistically significant number of recurrent transposon insertions, respectively. Comparison to human data sets identified new and known driver genes for MPNST formation at these sites. Pairwise co-occurrence analysis of CIS-associated genes identified many cooperating mutations that are enriched in Wnt/β-catenin, PI3K-AKT-mTOR and growth factor receptor signaling pathways. Lastly, we identified several new proto-oncogenes, including Foxr2 (encoding forkhead box R2), which we functionally validated as a proto-oncogene involved in MPNST maintenance.
UR - http://www.scopus.com/inward/record.url?scp=84879690769&partnerID=8YFLogxK
U2 - 10.1038/ng.2641
DO - 10.1038/ng.2641
M3 - Journal article
C2 - 23685747
SN - 1061-4036
VL - 45
SP - 756
EP - 766
JO - Nature Genetics
JF - Nature Genetics
IS - 7
ER -