Somatic mutations affect key pathways in lung adenocarcinoma
Determining the genetic basis of cancer requires comprehensive analyses of large collections of histopathologically well-classified primary tumours. Here we report the results of a collaborative study to discover somatic mutations in 188 human lung adenocarcinomas. DNA sequencing of 623 genes with k...
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Published in | Nature Vol. 455; no. 7216; pp. 1069 - 1075 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
London
Nature Publishing Group UK
23.10.2008
Nature Publishing Nature Publishing Group |
Subjects | |
Online Access | Get full text |
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Summary: | Determining the genetic basis of cancer requires comprehensive analyses of large collections of histopathologically well-classified primary tumours. Here we report the results of a collaborative study to discover somatic mutations in 188 human lung adenocarcinomas. DNA sequencing of 623 genes with known or potential relationships to cancer revealed more than 1,000 somatic mutations across the samples. Our analysis identified 26 genes that are mutated at significantly high frequencies and thus are probably involved in carcinogenesis. The frequently mutated genes include tyrosine kinases, among them the
EGFR
homologue
ERBB4
; multiple ephrin receptor genes, notably
EPHA3
; vascular endothelial growth factor receptor
KDR
; and
NTRK
genes. These data provide evidence of somatic mutations in primary lung adenocarcinoma for several tumour suppressor genes involved in other cancers—including
NF1
,
APC
,
RB1
and
ATM
—and for sequence changes in
PTPRD
as well as the frequently deleted gene
LRP1B.
The observed mutational profiles correlate with clinical features, smoking status and DNA repair defects. These results are reinforced by data integration including single nucleotide polymorphism array and gene expression array. Our findings shed further light on several important signalling pathways involved in lung adenocarcinoma, and suggest new molecular targets for treatment.
Mutations involved in lung cancer
In large-sale genomics study, mutations associated with lung cancer, the leading cause of cancer death, were examined in 188 primary tumour samples. More than 600 genes with known or potential links to lung adenocarcinoma were sequenced, of which 26 were mutated at high frequency suggestive of a direct role in carcinogenesis.
Sequencing of over 600 genes in a large collection of lung adenocarcinoma samples provides an overview of somatic mutations and signalling pathways altered in cancer genes in this tumour type. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 Author Information The TSP study accession number in the database of Genotype and Phenotype (dbGaP) is phs000144.v1.p1. The gene expression omnibus (GEO) accession number for TSP expression data is GSE12667. Reprints and permissions information is available at www.nature.com/reprints. These authors contributed equally to this work. |
ISSN: | 0028-0836 1476-4687 1476-4687 1476-4679 |
DOI: | 10.1038/nature07423 |