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Cited by 164

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Noninvasive Detection of Activating Estrogen Receptor 1 (ESR1) Mutations in Estrogen Receptor–Positive Metastatic Breast Cancer

Open access
Guttery, David S, Page, Karen, Hills, Allison, Woodley, Laura, Marchese, Stephanie D, Rghebi, Basma, Hastings, Robert K, Luo, Jinli, Pringle, J Howard, Stebbing, Justin, Coombes, R Charles, Ali, Simak, Shaw, Jacqueline A·2015·Clinical Chemistry

Abstract

BACKGROUND: Activating mutations in the estrogen receptor 1 (ESR1) gene are acquired on treatment and can drive resistance to endocrine therapy. Because of the spatial and temporal limitations of needle core biopsies, our goal was to develop a highly sensitive, less invasive method of detecting activating ESR1 mutations via circulating cell-free DNA (cfDNA) and tumor cells as a “liquid biopsy.” METHODS: We developed a targeted 23-amplicon next-generation sequencing (NGS) panel for detection of hot-spot mutations in ESR1, phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha (PIK3CA), tumor protein p53 (TP53), fibroblast growth factor receptor 1 (FGFR1), and fibroblast growth factor receptor 2 (FGFR2) in 48 patients with estrogen receptor-α–positive metastatic breast cancer who were receiving systemic therapy. Selected mutations were validated using droplet digital PCR (ddPCR). RESULTS: Nine baseline cfDNA samples had an ESR1 mutation. NGS detected 3 activating mutations in ESR1, and 3 hot-spot mutations in PIK3CA, and 3 in TP53 in baseline cfDNA, and the ESR1 p.D538G mutation in 1 matched circulating tumor cell sample. ddPCR analysis was more sensitive than NGS and identified 6 additional baseline cfDNA samples with the ESR1 p.D538G mutation at a frequency of <1%. In serial blood samples from 11 patients, 4 showed changes in cfDNA, 2 with emergence of a mutation in ESR1. We also detected a low frequency ESR1 mutation (1.3%) in cfDNA of 1 primary patient who was thought to have metastatic disease but was clear by scans. CONCLUSIONS: Early identification of ESR1 mutations by liquid biopsy might allow for cessation of ineffective endocrine therapies and switching to other treatments, without the need for tissue biopsy and before the emergence of metastatic disease.

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Metadata

Authors
Guttery, D. S., Page, K., Hills, A., Woodley, L., Marchese, S. D., Rghebi, B., Hastings, R. K., Luo, J., Pringle, J. H., Stebbing, J., Coombes, R. C., Ali, S., & Shaw, J. A.
Venue
Clinical Chemistry
Published
2015-07-01
Volume
61
Issue
7
Pages
974-982
ISSN
  • 0009-9147 (ISSN-L)
  • 1530-8561
OpenAlex
W1923619280
Cited by
164
References
10
FWCI
7.75
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Noninvasive Detection of Activating Estrogen Receptor 1 (ESR1) Mutations in Estrogen Receptor–Positive Metastatic Breast Cancer. https://app.cochat.ai/papers/10.1373/clinchem.2015.238717
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Guttery, D. S., Page, K., Hills, A., Woodley, L., Marchese, S. D., Rghebi, B., Hastings, R. K., Luo, J., Pringle, J. H., Stebbing, J., Coombes, R. C., Ali, S., & Shaw, J. A. (2015). Noninvasive Detection of Activating Estrogen Receptor 1 (ESR1) Mutations in Estrogen Receptor–Positive Metastatic Breast Cancer. Clinical Chemistry. https://doi.org/10.1373/clinchem.2015.238717

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