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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2017
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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) |
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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 |
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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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