Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis

Abstract It is particularly important to provide precise therapies and understand tumor heterogeneity based on the molecular typing of mutational landscape. However, the landscape of somatic mutations in different subtypes of advanced breast cancer (ABC) is largely unknown. We applied target-region...

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Autores principales: Zongbi Yi, Fei Ma, Chunxiao Li, Rongrong Chen, Lifang Yuan, Xiaoying Sun, Xiuwen Guan, Lixi Li, Binliang Liu, Yanfang Guan, Haili Qian, Binghe Xu
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/973dd7dd2c314ca3a0485a0ebd36ac6f
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spelling oai:doaj.org-article:973dd7dd2c314ca3a0485a0ebd36ac6f2021-12-02T11:52:21ZLandscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis10.1038/s41598-017-06327-42045-2322https://doaj.org/article/973dd7dd2c314ca3a0485a0ebd36ac6f2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06327-4https://doaj.org/toc/2045-2322Abstract It is particularly important to provide precise therapies and understand tumor heterogeneity based on the molecular typing of mutational landscape. However, the landscape of somatic mutations in different subtypes of advanced breast cancer (ABC) is largely unknown. We applied target-region capture deep sequencing to determine the frequency and spectrum of common cancer-related gene mutations in circulating tumor DNA (ctDNA) among different ABC subtypes and analyze their association with clinical features. In this retrospective study of 100 female advanced breast cancer patients, 96 (96.0%) had somatic genomic alterations in ctDNA, including copy number variants and point mutations. The results revealed that different subtypes of ABC have distinct features in terms of genetic alterations. Multivariate regression analyses revealed that the number of somatic mutations increased with the line of endocrine therapy and the fractions of trunk mutations was positive associated with the line of target therapy.Zongbi YiFei MaChunxiao LiRongrong ChenLifang YuanXiaoying SunXiuwen GuanLixi LiBinliang LiuYanfang GuanHaili QianBinghe XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Zongbi Yi
Fei Ma
Chunxiao Li
Rongrong Chen
Lifang Yuan
Xiaoying Sun
Xiuwen Guan
Lixi Li
Binliang Liu
Yanfang Guan
Haili Qian
Binghe Xu
Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
description Abstract It is particularly important to provide precise therapies and understand tumor heterogeneity based on the molecular typing of mutational landscape. However, the landscape of somatic mutations in different subtypes of advanced breast cancer (ABC) is largely unknown. We applied target-region capture deep sequencing to determine the frequency and spectrum of common cancer-related gene mutations in circulating tumor DNA (ctDNA) among different ABC subtypes and analyze their association with clinical features. In this retrospective study of 100 female advanced breast cancer patients, 96 (96.0%) had somatic genomic alterations in ctDNA, including copy number variants and point mutations. The results revealed that different subtypes of ABC have distinct features in terms of genetic alterations. Multivariate regression analyses revealed that the number of somatic mutations increased with the line of endocrine therapy and the fractions of trunk mutations was positive associated with the line of target therapy.
format article
author Zongbi Yi
Fei Ma
Chunxiao Li
Rongrong Chen
Lifang Yuan
Xiaoying Sun
Xiuwen Guan
Lixi Li
Binliang Liu
Yanfang Guan
Haili Qian
Binghe Xu
author_facet Zongbi Yi
Fei Ma
Chunxiao Li
Rongrong Chen
Lifang Yuan
Xiaoying Sun
Xiuwen Guan
Lixi Li
Binliang Liu
Yanfang Guan
Haili Qian
Binghe Xu
author_sort Zongbi Yi
title Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
title_short Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
title_full Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
title_fullStr Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
title_full_unstemmed Landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor DNA analysis
title_sort landscape of somatic mutations in different subtypes of advanced breast cancer with circulating tumor dna analysis
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/973dd7dd2c314ca3a0485a0ebd36ac6f
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