Title |
Whole-genome sequencing identifies genetic alterations in pediatric low-grade gliomas
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Published in |
Nature Genetics, April 2013
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DOI | 10.1038/ng.2611 |
Pubmed ID | |
Abstract |
The most common pediatric brain tumors are low-grade gliomas (LGGs). We used whole-genome sequencing to identify multiple new genetic alterations involving BRAF, RAF1, FGFR1, MYB, MYBL1 and genes with histone-related functions, including H3F3A and ATRX, in 39 LGGs and low-grade glioneuronal tumors (LGGNTs). Only a single non-silent somatic alteration was detected in 24 of 39 (62%) tumors. Intragenic duplications of the portion of FGFR1 encoding the tyrosine kinase domain (TKD) and rearrangements of MYB were recurrent and mutually exclusive in 53% of grade II diffuse LGGs. Transplantation of Trp53-null neonatal astrocytes expressing FGFR1 with the duplication involving the TKD into the brains of nude mice generated high-grade astrocytomas with short latency and 100% penetrance. FGFR1 with the duplication induced FGFR1 autophosphorylation and upregulation of the MAPK/ERK and PI3K pathways, which could be blocked by specific inhibitors. Focusing on the therapeutically challenging diffuse LGGs, our study of 151 tumors has discovered genetic alterations and potential therapeutic targets across the entire range of pediatric LGGs and LGGNTs. |
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Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 5 | 36% |
France | 2 | 14% |
United Kingdom | 2 | 14% |
Germany | 1 | 7% |
Spain | 1 | 7% |
Unknown | 3 | 21% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 8 | 57% |
Members of the public | 4 | 29% |
Science communicators (journalists, bloggers, editors) | 2 | 14% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 5 | 1% |
Japan | 3 | <1% |
France | 2 | <1% |
Canada | 2 | <1% |
Korea, Republic of | 1 | <1% |
Italy | 1 | <1% |
Netherlands | 1 | <1% |
Norway | 1 | <1% |
Czechia | 1 | <1% |
Other | 6 | 1% |
Unknown | 449 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 105 | 22% |
Student > Ph. D. Student | 68 | 14% |
Student > Master | 44 | 9% |
Student > Postgraduate | 39 | 8% |
Student > Bachelor | 37 | 8% |
Other | 96 | 20% |
Unknown | 83 | 18% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 133 | 28% |
Agricultural and Biological Sciences | 108 | 23% |
Biochemistry, Genetics and Molecular Biology | 73 | 15% |
Neuroscience | 18 | 4% |
Pharmacology, Toxicology and Pharmaceutical Science | 5 | 1% |
Other | 34 | 7% |
Unknown | 101 | 21% |