Cited by 965Cancer Genomics and DiagnosticsLung Cancer Treatments and MutationsLung Cancer Diagnosis and Treatment

Intratumor heterogeneity in localized lung adenocarcinomas delineated by multiregion sequencing

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Zhang, Jianjun, Fujimoto, Junya, Zhang, Jianhua, Wedge, David C., Song, Xingzhi, Zhang, Jiexin, Seth, Sahil, Chow, Chi-Wan +19 more·2014·Science

Abstract

Cancers are composed of populations of cells with distinct molecular and phenotypic features, a phenomenon termed intratumor heterogeneity (ITH). ITH in lung cancers has not been well studied. We applied multiregion whole-exome sequencing (WES) on 11 localized lung adenocarcinomas. All tumors showed clear evidence of ITH. On average, 76% of all mutations and 20 out of 21 known cancer gene mutations were identified in all regions of individual tumors, which suggested that single-region sequencing may be adequate to identify the majority of known cancer gene mutations in localized lung adenocarcinomas. With a median follow-up of 21 months after surgery, three patients have relapsed, and all three patients had significantly larger fractions of subclonal mutations in their primary tumors than patients without relapse. These data indicate that a larger subclonal mutation fraction may be associated with increased likelihood of postsurgical relapse in patients with localized lung adenocarcinomas.

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  • There is evidence that APOBEC-mediated mutagenesis fuels sub-clonal diversification and branched evolution.

    “While the full extent to which mutational processes account for unique combinations of somatic genomic alterations in NSCLC is currently unknown, there is evidence that APOBEC-mediated mutagenesis fuels sub-clonal diversification and branched evolution78, 79.”

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Authors
Zhang, J., Fujimoto, J., Zhang, J., Wedge, D. C., Song, X., Zhang, J., Seth, S., Chow, C.-W., Cao, Y., Gumbs, C., Gold, K. A., Kalhor, N., Little, L., Mahadeshwar, H., Moran, C., Protopopov, A., Sun, H., Tang, J., Wu, X., Ye, Y., William, W. N., Lee, J. J., Heymach, J. V., Hong, W. K., Swisher, S., Wistuba, I. I., & Futreal, P. A.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Wellcome Sanger Institute (GB)
  • Department of Pathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
Corresponding author
Futreal, P. Andrew
Venue
Science
Published
2014-10-10
Volume
346
Issue
6206
Pages
256-259
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2038268416
Cited by
965
References
46
Citations by year
2026: 17 · 2025: 32 · 2024: 51 · 2023: 66 · 2022: 77 · 2021: 92 · 2020: 94 · 2019: 85 · 2018: 108 · 2017: 113 · 2016: 119 · 2015: 102 · 2014: 8
FWCI
36.55
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
National Cancer Institute (CA 016672, (P50-CA70907, T32CA009666, P50CA070907, P30CA016672)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
intratumoral heterogeneity, lung adenocarcinoma, localized lung cancer, exome sequencing, subclonal mutations, cancer mutations, tumor recurrence, postoperative recurrence
MeSH terms
Adenocarcinoma of Lung, Adenocarcinoma, DNA Mutational Analysis, Humans, Lung Neoplasms, Mutation, Neoplasm Recurrence, Local, Genetic Heterogeneity, Genes, Neoplasm, Exome

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