RRC ID 36967
Author Takenaka M, Saito M, Iwakawa R, Yanaihara N, Saito M, Kato M, Ichikawa H, Shibata T, Yokota J, Okamoto A, Kohno T.
Title Profiling of actionable gene alterations in ovarian cancer by targeted deep sequencing.
Journal Int J Oncol
Abstract To construct a profile of therapeutically actionable gene alterations in the major histological types of ovarian cancer, 72 Japanese patients with surgically resected ovarian cancers were selected from an original cohort consisting of 267 patients who had not received pre-treatment before surgery. Somatic mutations and copy number alterations at 740 hotspots in 46 cancer-related genes were detected by deep sequencing of genomic DNAs obtained from snap-frozen tumor tissues using a next generation sequencer. The alterations were verified by Sanger sequencing and quantitative genomic PCR. Mutations and/or copy number aberrations which will make tumors respond to molecular targeting drugs were detected in nine genes of 35/72 (48.6%) patients; PIK3CA (25.0%), KRAS (13.9%), ERBB2 (4.3%), PTEN (2.8%), RB1 (2.8%), CDKN2A (2.8%), AKT1 (1.4%), CTNNB1 (1.4%) and NRAS (1.4%). These mutations tended to occur in a mutually exclusive manner. Non-serous histological type tumors showed such actionable gene alterations frequently (32/47; 68.1%). Therefore, ovarian cancers, particularly of non-serous types, frequently carry gene aberrations that link to therapy using molecular targeting drugs.
Volume 46(6)
Pages 2389-98
Published 2015-1-1
DOI 10.3892/ijo.2015.2951
PMID 25846456
MeSH Cell Line, Tumor Female High-Throughput Nucleotide Sequencing / methods* Humans Mutation* Ovarian Neoplasms / genetics* Ovarian Neoplasms / pathology Sequence Analysis, DNA / methods*
IF 3.899
Times Cited 9
WOS Category ONCOLOGY
Resource
Human and Animal Cells JHOC-5(RCB1520) JHOC-7(RCB1688) JHOC-8(RCB1723) JHOC-9(RCB2226)