Cited by 674Estrogen and related hormone effectsAdvanced Breast Cancer TherapiesBreast Cancer Treatment Studies

Emergence of constitutively active estrogen receptor-α mutations in pretreated advanced estrogen receptor-positive breast cancer

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Jeselsohn, Rinath, Yelensky, Roman, Buchwalter, Gilles, Frampton, Garrett, Meric-Bernstam, Funda, Gonzalez-Angulo, Ana Maria, Ferrer-Lozano, Jaime, Perez-Fidalgo, Jose A. +23 more·2014·Clinical Cancer Research

Published version of a preprint

Abstract

Purpose: We undertook this study to determine the prevalence of estrogen receptor (ER) α (ESR1) mutations throughout the natural history of hormone-dependent breast cancer and to delineate the functional roles of the most commonly detected alterations. Experimental Design: We studied a total of 249 tumor specimens from 208 patients. The specimens include 134 ER-positive (ER+/HER2−) and, as controls, 115 ER-negative (ER−) tumors. The ER+ samples consist of 58 primary breast cancers and 76 metastatic samples. All tumors were sequenced to high unique coverage using next-generation sequencing targeting the coding sequence of the estrogen receptor and an additional 182 cancer-related genes. Results: Recurring somatic mutations in codons 537 and 538 within the ligand-binding domain of ER were detected in ER+ metastatic disease. Overall, the frequency of these mutations was 12% [9/76; 95% confidence interval (CI), 6%–21%] in metastatic tumors and in a subgroup of patients who received an average of 7 lines of treatment the frequency was 20% (5/25; 95% CI, 7%–41%). These mutations were not detected in primary or treatment-naïve ER+ cancer or in any stage of ER− disease. Functional studies in cell line models demonstrate that these mutations render estrogen receptor constitutive activity and confer partial resistance to currently available endocrine treatments. Conclusions: In this study, we show evidence for the temporal selection of functional ESR1 mutations as potential drivers of endocrine resistance during the progression of ER+ breast cancer. Clin Cancer Res; 20(7); 1757–67. ©2014 AACR.

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Authors
Jeselsohn, R., Yelensky, R., Buchwalter, G., Frampton, G., Meric-Bernstam, F., Gonzalez-Angulo, A. M., Ferrer-Lozano, J., Perez-Fidalgo, J. A., Cristofanilli, M., Gómez, H., Arteaga, C. L., Giltnane, J., Balko, J. M., Cronin, M. T., Jarosz, M., Sun, J., Hawryluk, M., Lipson, D., Otto, G., Ross, J. S., Dvir, A., Soussan-Gutman, L., Wolf, I., Rubinek, T., Gilmore, L., Schnitt, S., Come, S. E., Pusztai, L., Stephens, P., Brown, M., & Miller, V. A.
Affiliations
  • Brigham and Women's Hospital (US)
  • Authors' Affiliations: 1Center for Functional Cancer Epigenetics, 2Department of Medical Oncology, Dana-Farber Cancer Institute; 3Department of Medicine, Brigham and Women's Hospital; Departments of 4Pathology and 5Breast Medical Oncology Program, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; 6Foundation Medicine, Cambridge, Massachusetts; 7Departments of Investigational Cancer Therapeutics, Surgical Oncology, and 8Systems Biology and Breast Medical Oncology, The University of MD Anderson Cancer Center, Houston, Texas; 9Fundacion de Investigacion INCLIVA-Institute for Health Research; 10Departments of Hematology-Oncology, Hospital Clinico Universitario de Valencia, Valencia, Spain; 11Jefferson Breast Care Center, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania; 12Instituto Nacional de Enfermedades Neoplásicas (INEN), Lima, Perú; 13Breast Cancer Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee; 14Teva Pha
Corresponding author
Brown, Myles
Venue
Clinical Cancer Research
Published
2014-03-31
Volume
20
Issue
7
Pages
1757-1767
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W2111324624
Cited by
674
References
51
Citations by year
2026: 43 · 2025: 49 · 2024: 43 · 2023: 57 · 2022: 45 · 2021: 73 · 2020: 61 · 2019: 48 · 2018: 65 · 2017: 58 · 2016: 59 · 2015: 49 · 2014: 22 · 2013: 1
FWCI
40.66
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000371)
  • National Cancer Institute (P01CA080111, P30CA016672)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK074967)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Advanced Breast Cancer Therapies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Breast Cancer Treatment Studies
Keywords
estrogen receptor alpha, ESR1 mutations, estrogen receptor-positive breast cancer, metastatic breast cancer, endocrine therapy resistance, ligand-binding domain
MeSH terms
Breast Neoplasms, Female, Humans, Mutation, Neoplasm Staging, Neoplasms, Hormone-Dependent, Estrogen Receptor alpha, High-Throughput Nucleotide Sequencing, MCF-7 Cells

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