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Title: A mutational signature in gastric cancer suggests therapeutic strategies

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms9683· OSTI ID:1236756
ORCiD logo [1];  [2];  [3];  [3];  [4]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Wellcome Trust Sanger Institute, Hinxton (United Kingdom)
  2. Wellcome Trust Sanger Institute, Hinxton (United Kingdom); Addenbrooke's Hospital National Health Service (NHS) Trust, Cambridge (United Kingdom)
  3. The Univ. of Hong Kong, Queen Mary Hospital, Pokfulam (Hong Kong)
  4. Wellcome Trust Sanger Institute, Hinxton (United Kingdom)

Targeting defects in the DNA repair machinery of neoplastic cells, for example, those due to inactivating BRCA1 and/or BRCA2 mutations, has been used for developing new therapies in certain types of breast, ovarian and pancreatic cancers. Recently, a mutational signature was associated with failure of double-strand DNA break repair by homologous recombination based on its high mutational burden in samples harbouring BRCA1 or BRCA2 mutations. In pancreatic cancer, all responders to platinum therapy exhibit this mutational signature including a sample that lacked any defects in BRCA1 or BRCA2. Here, we examine 10,250 cancer genomes across 36 types of cancer and demonstrate that, in addition to breast, ovarian and pancreatic cancers, gastric cancer is another cancer type that exhibits this mutational signature. Furthermore, our results suggest that 7–12% of gastric cancers have defective double-strand DNA break repair by homologous recombination and may benefit from either platinum therapy or PARP inhibitors.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1236756
Report Number(s):
LA-UR-15-24068; ncomms9683
Journal Information:
Nature Communications, Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 123 works
Citation information provided by
Web of Science

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Cited By (45)

Tumor mutation burden and recurrent tumors in hereditary lung cancer journal April 2019
Mutational signature analysis identifies MUTYH deficiency in colorectal cancers and adrenocortical carcinomas: Mutational signature associated with MUTYH deficiency in cancers journal March 2017
Personalised Treatment in Gastric Cancer: Myth or Reality? journal May 2016
Precision oncology in the age of integrative genomics journal January 2018
Mutational signatures in esophageal adenocarcinoma define etiologically distinct subgroups with therapeutic relevance journal September 2016
HRDetect is a predictor of BRCA1 and BRCA2 deficiency based on mutational signatures journal March 2017
BRCAness revisited journal January 2016
Pan-cancer analysis of bi-allelic alterations in homologous recombination DNA repair genes journal October 2017
Scalable whole-exome sequencing of cell-free DNA reveals high concordance with metastatic tumors journal November 2017
Mutation hotspots at CTCF binding sites coupled to chromosomal instability in gastrointestinal cancers journal April 2018
Whole genome sequencing puts forward hypotheses on metastasis evolution and therapy in colorectal cancer journal November 2018
The genetic landscape of 5T models for multiple myeloma journal October 2018
Germline susceptibility variants impact clinical outcome and therapeutic strategies for stage III colorectal cancer journal March 2019
Pan-cancer analysis of advanced patient tumors reveals interactions between therapy and genomic landscapes journal April 2020
Targeting deficient DNA damage repair in gastric cancer journal August 2016
Computational approaches for discovery of mutational signatures in cancer journal July 2017
Understanding mutagenesis through delineation of mutational signatures in human cancer journal May 2016
Exploring background mutational processes to decipher cancer genetic heterogeneity journal May 2017
SigLASSO: a LASSO approach jointly optimizing sampling likelihood and cancer mutation signatures posted_content May 2018
Genomic aberration based molecular signatures efficiently characterize homologous recombination deficiency in prostate cancer posted_content June 2019
Mutational signatures associated with tobacco smoking in human cancer journal November 2016
Identification of distinct mutational patterns and new driver genes in oesophageal squamous cell carcinomas and adenocarcinomas journal August 2017
Immune activation by DNA damage predicts response to chemotherapy and survival in oesophageal adenocarcinoma journal March 2019
Portrait of a cancer: mutational signature analyses for cancer diagnostics journal May 2019
Actionable gene-based classification toward precision medicine in gastric cancer journal October 2017
FIREVAT: finding reliable variants without artifacts in human cancer samples using etiologically relevant mutational signatures journal December 2019
Persistent double strand break accumulation does not precede cell death in an Olaparib-sensitive BRCA-deficient colorectal cancer cell model journal January 2020
Mutational signatures associated with tobacco smoking in human cancer posted_content May 2016
Computational approaches for discovery of mutational signatures in cancer posted_content June 2017
HRDetect is a predictor of BRCA1 and BRCA2 deficiency based on mutational signatures. text January 2017
Mutational signatures in esophageal adenocarcinoma define etiologically distinct subgroups with therapeutic relevance text January 2016
Computational approaches for discovery of mutational signatures in cancer. text January 2019
Immune activation by DNA damage predicts response to chemotherapy and survival in oesophageal adenocarcinoma. text January 2019
Base changes in tumour DNA have the power to reveal the causes and evolution of cancer journal June 2016
A proteogenomic approach for protein-level evidence of genomic variants in cancer cells journal October 2016
KIF2A Overexpression and Its Association with Clinicopathologic Characteristics and Poor Prognoses in Patients with Gastric Cancer journal January 2016
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Platelet distribution width correlates with prognosis of gastric cancer journal February 2017
Comprehensive analysis of a novel four-lncRNA signature as a prognostic biomarker for human gastric cancer journal August 2017
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Phosphoglycerate dehydrogenase is a novel predictor for poor prognosis in gastric cancer journal September 2016
The effects of BRCA1 expression on the chemosensitivity of gastric cancer cells to platinum agents journal March 2019
Analysis of microRNA expression profiles reveals a 5‑microRNA prognostic signature for predicting overall survival time in patients with gastric adenocarcinoma journal March 2019

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