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Bischoff H, Espié M, Petit T. Neoadjuvant Therapy: Current Landscape and Future Horizons for ER-Positive/HER2-Negative and Triple-Negative Early Breast Cancer. Curr Treat Options Oncol 2024:10.1007/s11864-024-01251-y. [PMID: 39145854 DOI: 10.1007/s11864-024-01251-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2024] [Indexed: 08/16/2024]
Abstract
OPINION STATEMENT Navigating the complex landscape of breast cancer treatment involves distinct strategies for luminal and triple-negative subtypes. While neoadjuvant chemotherapy historically dominates the approach for aggressive triple-negative tumors, recent evidence highlights the transformative impact of immunotherapy, alongside chemotherapy, in reshaping treatment paradigms. In luminal cancers, endocrine therapy, notably aromatase inhibitors, demonstrates promising outcomes in postmenopausal patients with low-grade luminal A tumors. However, integrating targeted therapies like CDK4/6 inhibitors in neoadjuvant setting remains inconclusive. Identifying predictive factors for treatment response, especially in luminal tumors, poses a challenge, emphasizing the necessity for ongoing research. A multidisciplinary approach, tailored to individual patient profiles, is crucial for maximizing efficacy while minimizing toxicity. As we strive to optimize breast cancer management, a comprehensive understanding of the distinct characteristics and treatment implications of luminal and triple-negative subtypes, including the transformative role of immunotherapy, is essential for informed decision-making and personalized care.
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Affiliation(s)
- Hervé Bischoff
- Medical Oncology Department, Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, 67033, Strasbourg, France.
| | - Marc Espié
- Medical Oncology Department, Hôpital Saint Louis, Paris, France
| | - Thierry Petit
- Medical Oncology Department, Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, 67033, Strasbourg, France
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van de Loo ME, Andour L, van Heesewijk AE, Oosterkamp HM, Liefers GJ, Straver ME. Neoadjuvant endocrine treatment in hormone receptor-positive breast cancer: Does it result in more breast-conserving surgery? Breast Cancer Res Treat 2024; 205:5-16. [PMID: 38265568 DOI: 10.1007/s10549-023-07222-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/10/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Patients with locally advanced endocrine positive tumors who will not benefit from chemotherapy can be treated by either primary surgery or neoadjuvant endocrine therapy (NET). How often does NET result in breast-conserving surgery (BCS)? METHODS We conducted a literature search in PubMed and Embase, to identify articles on surgical treatment after NET. RESULTS In 19 studies the pathological complete response (pCR) rate was reported after NET; an overall pCR rate of 1% was found. Compared with neoadjuvant chemotherapy (NCT), the BCS rate was significantly higher after NET (OR 0.60; 95% CI, 0.51-0.69; P < 0.00001). The surgical conversion rate was reported in eight studies [4-75.9%], with a mean of 30.2%. CONCLUSION This review found that one out of three patients becomes eligible for BCS after treatment with NET.
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Affiliation(s)
- Merel E van de Loo
- Department of Surgery, Medical Center Haaglanden, The Hague, The Netherlands
| | - Layla Andour
- Department of Surgery, Medical Center Haaglanden, The Hague, The Netherlands
| | | | | | - Gerrit-Jan Liefers
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Marieke E Straver
- Department of Surgery, Medical Center Haaglanden, The Hague, The Netherlands.
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Zhang N, Luo C, Li J, Bao Y, Yan Z, Cheng X, Li T, Lv J. Chemotherapy combined with endocrine neoadjuvant therapy for hormone receptor-positive local advanced breast cancer: a case report and literature review. Front Endocrinol (Lausanne) 2024; 15:1362725. [PMID: 38549762 PMCID: PMC10976348 DOI: 10.3389/fendo.2024.1362725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 02/09/2024] [Indexed: 04/02/2024] Open
Abstract
Background Early studies have revealed antagonistic effects associated with stacking chemotherapy (CT) and endocrine therapy (ET), thereby conventional wisdom does not advocate the simultaneous combination of these two treatment modalities. Limited clinical studies exist on the combined use of neoadjuvant CT (NACT) and neoadjuvant ET (NET), and there are no reported instances of concurrent neoadjuvant treatment for locally advanced breast cancer (LABC) using capecitabine and fulvestrant (FUL). Case presentation We reported a 54-year-old woman who was diagnosed with hormone receptor-positive (HR+) LABC at our hospital. After neoadjuvant treatment involving two distinct CT regimens did not lead to tumor regression. Consequently, the patient was transitioned to concurrent capecitabine and FUL therapy. This change resulted in favorable pathological remission without any significant adverse events during treatment. Conclusions A novel approach involving concurrent neoadjuvant therapy with CT and endocrine therapy may offer a potentially effective treatment avenue for some cases with HR+ LABC.
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Affiliation(s)
- Nengying Zhang
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Chengmin Luo
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jiayang Li
- Drug Clinical Trial Institution, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yuxiang Bao
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhongliang Yan
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xiaoming Cheng
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Taolang Li
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Junyuan Lv
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
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Hoshina H, Sakatani T, Kawamoto Y, Ohashi R, Takei H. Cytomorphological Disparities in Invasive Breast Cancer Cells following Neoadjuvant Endocrine Therapy and Chemotherapy. Pathobiology 2024; 91:288-298. [PMID: 38447546 PMCID: PMC11309077 DOI: 10.1159/000538227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 03/04/2024] [Indexed: 03/08/2024] Open
Abstract
INTRODUCTION Neoadjuvant endocrine therapy (NAE) offers a breast-conserving surgery rate and clinical response rate similar to those of neoadjuvant chemotherapy (NAC), while presenting fewer adverse events and lower pathological complete response rates. The assessment of pathological response determines degenerative changes and predicts the prognosis of breast cancer treated with NAC. This study clarified the degenerative changes occurring in breast cancer following NAE. METHODS Our study encompassed two groups: NAE, consisting of 15 patients, and NAC, comprising 18 patients. Tissue samples were obtained from core needle biopsies and surgeries. Nuclear and cell areas were calculated using Autocell analysis. Furthermore, we assessed markers associated with microtubule depolymerization (KIF2A) and initiators of apoptosis (caspase-9). RESULTS In the NAC group, we observed significant increases in both cytoplasmic and cell areas. These changes in cytoplasm and cells were notably more pronounced in the NAC group compared to the NAE group. After treatment, KIF2A exhibited a decrease, with the magnitude of change being greater in the NET group than in the NAC group. However, no discernible differences were found in caspase-9 expression between the two groups. CONCLUSION Our findings indicate that NAE induces condensation in cancer cells via cell cycle arrest or apoptosis. Conversely, NAC leads to cell enlargement due to the absence of microtubule depolymerization. These discrepancies underscore the importance of accounting for these distinctions when establishing criteria for evaluating pathological responses.
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Affiliation(s)
- Hideko Hoshina
- Department of Breast Surgery and Oncology, Nippon Medical School, Tokyo, Japan,
| | - Takashi Sakatani
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan
| | - Yoko Kawamoto
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
| | - Ryuji Ohashi
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
| | - Hiroyuki Takei
- Department of Breast Surgery and Oncology, Nippon Medical School, Tokyo, Japan
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Jeong H, Kim SB. Neoadjuvant endocrine therapy in ER-positive breast cancer: evolution, indication, and tailored treatment strategy. Ther Adv Med Oncol 2023; 15:17588359231200457. [PMID: 37786536 PMCID: PMC10541763 DOI: 10.1177/17588359231200457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 08/25/2023] [Indexed: 10/04/2023] Open
Abstract
In recent years, endocrine therapy (ET), an effective systemic treatment for the management of estrogen receptor (ER)-positive breast cancers, has regained interest as a neoadjuvant therapy based on evidence that ET can fulfill the aim of neoadjuvant systemic treatment for tumor shrinkage as well as elucidate important clinical information on endocrine sensitivity that enables the prognostication of patients. Moreover, neoadjuvant endocrine therapy (NET) potentially provides an opportunity for early assessment of the clinical efficacy of novel agents. Furthermore, recently reported trials have generated evidence for a more tailored approach for perioperative management of ER-positive breast cancer using clinical and molecular biomarkers, and this has provided a rationale that enables the broadening of clinical indications for NET. This review discusses the current evidence for NET, the evolution of NET trials, clinical indications, and NET-based treatment strategies.
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Affiliation(s)
- Hyehyun Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sung-Bae Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
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Sirico M, Virga A, Conte B, Urbini M, Ulivi P, Gianni C, Merloni F, Palleschi M, Gasperoni M, Curcio A, Saha D, Buono G, Muñoz M, De Giorgi U, Schettini F. Neoadjuvant endocrine therapy for luminal breast tumors: State of the art, challenges and future perspectives. Crit Rev Oncol Hematol 2023; 181:103900. [PMID: 36565894 DOI: 10.1016/j.critrevonc.2022.103900] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Neoadjuvant endocrine treatment (NET) associates to satisfactory rates of breast conservative surgery and conversions from inoperable to operable hormone receptor-positive (HR+)/HER2-negative breast cancer (BC), with less toxicities than neoadjuvant chemotherapy (NACT) and similar outcomes. Hence, it has been proposed as a logical alternative to NACT in patients with HR+/HER2- BC candidate to a neoadjuvant approach. Nevertheless, potential barriers to the widespread use of NET include the heterogeneous nature of patient response coupled with the long duration needed to achieve a clinical response. However, interest in NET has significantly increased in the last decade, owing to more in-depth investigation of several biomarkers for a more adequate patient selection and on-treatment benefit monitoring, such as PEPI score, Ki67 and genomic assays. This review is intended to describe the state-of-the-art regarding NET, its future perspectives and potential integration with molecular biomarkers for the optimal selection of patients, regimen and duration of (neo)adjuvant treatments.
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Affiliation(s)
- Marianna Sirico
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Alessandra Virga
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Benedetta Conte
- Translational Genomics and Targeted Therapies in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Milena Urbini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Paola Ulivi
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Caterina Gianni
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Filippo Merloni
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Michela Palleschi
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Marco Gasperoni
- Breast Surgery Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, Forlì, Italy
| | - Annalisa Curcio
- Breast Surgery Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, Forlì, Italy
| | - Debjani Saha
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Giuseppe Buono
- Department of Breast and Thoracic Oncology, National Cancer Institute, Fondazione G. Pascale, Naples, Italy
| | - Montserrat Muñoz
- Translational Genomics and Targeted Therapies in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Medical Oncology Department, Hospital Clinic of Barcelona, Barcelona, Spain; Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Ugo De Giorgi
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Francesco Schettini
- Translational Genomics and Targeted Therapies in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Medical Oncology Department, Hospital Clinic of Barcelona, Barcelona, Spain; Faculty of Medicine, University of Barcelona, Barcelona, Spain
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Martínez-Pérez C, Turnbull AK, Kay C, Dixon JM. Neoadjuvant endocrine therapy in postmenopausal women with HR+/HER2- breast cancer. Expert Rev Anticancer Ther 2023; 23:67-86. [PMID: 36633402 DOI: 10.1080/14737140.2023.2162043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023]
Abstract
INTRODUCTION While endocrine therapy is the standard-of-care adjuvant treatment for hormone receptor-positive (HR+) breast cancers, there is also extensive evidence for the role of pre-operative (or neoadjuvant) endocrine therapy (NET) in HR+ postmenopausal women. AREAS COVERED We conducted a thorough review of the published literature, to summarize the evidence to date, including studies of how NET compares to neoadjuvant chemotherapy, which NET agents are preferable, and the optimal duration of NET. We describe the importance of on-treatment assessment of response, the different predictors available (including Ki67, PEPI score, and molecular signatures) and the research opportunities the pre-operative setting offers. We also summarize recent combination trials and discuss how the COVID-19 pandemic led to increases in NET use for safe management of cases with deferred surgery and adjuvant treatments. EXPERT OPINION NET represents a safe and effective tool for the management of postmenopausal women with HR+/HER2- breast cancer, enabling disease downstaging and a wider range of surgical options. Aromatase inhibitors are the preferred NET, with evidence suggesting that longer regimens might yield optimal results. However, NET remains currently underutilised in many territories and institutions. Further validation of predictors for treatment response and benefit is needed to help standardise and fully exploit the potential of NET in the clinic.
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Affiliation(s)
- Carlos Martínez-Pérez
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - Arran K Turnbull
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - Charlene Kay
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - J Michael Dixon
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Unit, Western General Hospital, Edinburgh, Scotland
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Singer CF, Holst F, Steurer S, Burandt EC, Lax SF, Jakesz R, Rudas M, Stöger H, Greil R, Sauter G, Filipits M, Simon R, Gnant M. Estrogen Receptor Alpha Gene Amplification Is an Independent Predictor of Long-Term Outcome in Postmenopausal Patients with Endocrine-Responsive Early Breast Cancer. Clin Cancer Res 2022; 28:4112-4120. [PMID: 35920686 PMCID: PMC9475247 DOI: 10.1158/1078-0432.ccr-21-4328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/07/2022] [Accepted: 07/08/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Estrogen receptor (ER) expression is a prognostic parameter in breast cancer, and a prerequisite for the use of endocrine therapy. In ER+ early breast cancer, however, no receptor-associated biomarker exists that identifies patients with a particularly favorable outcome. We have investigated the value of ESR1 amplification in predicting the long-term clinical outcome in tamoxifen-treated postmenopausal women with endocrine-responsive breast cancer. EXPERIMENTAL DESIGN 394 patients who had been randomized into the tamoxifen-only arm of the prospective randomized ABCSG-06 trial of adjuvant endocrine therapy with available formalin-fixed, paraffin-embedded tumor tissue were included in this analysis. IHC ERα expression was evaluated both locally and in a central lab using the Allred score, while ESR1 gene amplification was evaluated by FISH analysis using the ESR1/CEP6 ratio indicating focal copy number alterations. RESULTS Focal ESR1 copy-number elevations (amplifications) were detected in 187 of 394 (47%) tumor specimens, and were associated with a favorable outcome: After a median follow-up of 10 years, women with intratumoral focal ESR1 amplification had a significantly longer distant recurrence-free survival [adjusted HR, 0.48; 95% confidence interval (CI), 0.26-0.91; P = 0.02] and breast cancer-specific survival (adjusted HR 0.47; 95% CI, 0.27-0.80; P = 0.01) as compared with women without ESR1 amplification. IHC ERα protein expression, evaluated by Allred score, correlated significantly with focal ESR1 amplification (P < 0.0001; χ2 test), but was not prognostic by itself. CONCLUSIONS Focal ESR1 amplification is an independent and powerful predictor for long-term distant recurrence-free and breast cancer-specific survival in postmenopausal women with endocrine-responsive early-stage breast cancer who received tamoxifen for 5 years.
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Affiliation(s)
- Christian F. Singer
- Department of OB/GYN, Medical University of Vienna, Vienna, Austria.,Corresponding Author: Christian F. Singer, Medical University of Vienna, AKH Wien, Waehringer Guertel 18-20, Vienna 1090, Austria. Phone: 4314-0400-28010, Fax: 4314-0400-23230; E-mail:
| | | | - Frederik Holst
- Department of OB/GYN, Medical University of Vienna, Vienna, Austria.,Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Steurer
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eike C. Burandt
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sigurd F. Lax
- Department of Pathology, Medical University of Graz, Graz, Austria.,Hospital Graz II, Graz, Austria.,Johannes Kepler University, School of Medicine, Graz, Austria
| | - Raimund Jakesz
- Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Margaretha Rudas
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Herbert Stöger
- Department of Medicine, Medical University of Graz, Graz, Austria
| | - Richard Greil
- Salzburg Cancer Research Institute - Center for Clinical and Immunology Trials and Cancer Cluster Salzburg; IIIrd Medical Department, Paracelsus Medical University Salzburg, Salzburg, Austria
| | | | - Guido Sauter
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Filipits
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
| | | | - Ronald Simon
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Gnant
- Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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Patterns of genomic change in residual disease after neoadjuvant chemotherapy for estrogen receptor-positive and HER2-negative breast cancer. Br J Cancer 2021; 125:1356-1364. [PMID: 34480095 PMCID: PMC8575785 DOI: 10.1038/s41416-021-01526-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 07/04/2021] [Accepted: 08/11/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Treatment of patients with residual disease after neoadjuvant chemotherapy for breast cancer is an unmet clinical need. We hypothesised that tumour subclones showing expansion in residual disease after chemotherapy would contain mutations conferring drug resistance. METHODS We studied oestrogen receptor and/or progesterone receptor-positive, HER2-negative tumours from 42 patients in the EORTC 10994/BIG 00-01 trial who failed to achieve a pathological complete response. Genes commonly mutated in breast cancer were sequenced in pre and post-treatment samples. RESULTS Oncogenic driver mutations were commonest in PIK3CA (38% of tumours), GATA3 (29%), CDH1 (17%), TP53 (17%) and CBFB (12%); and amplification was commonest for CCND1 (26% of tumours) and FGFR1 (26%). The variant allele fraction frequently changed after treatment, indicating that subclones had expanded and contracted, but there were changes in both directions for all of the commonly mutated genes. CONCLUSIONS We found no evidence that expansion of clones containing recurrent oncogenic driver mutations is responsible for resistance to neoadjuvant chemotherapy. The persistence of classic oncogenic mutations in pathways for which targeted therapies are now available highlights their importance as drug targets in patients who have failed chemotherapy but provides no support for a direct role of driver oncogenes in resistance to chemotherapy. CLINICALTRIALS.GOV: EORTC 10994/BIG 1-00 Trial registration number NCT00017095.
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The Present and Future of Neoadjuvant Endocrine Therapy for Breast Cancer Treatment. Cancers (Basel) 2021; 13:cancers13112538. [PMID: 34064183 PMCID: PMC8196711 DOI: 10.3390/cancers13112538] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/16/2021] [Accepted: 05/19/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary The treatment of breast cancer has evolved considerably over the last two decades, leading toward individualized disease management. Hormone-sensitive breast cancers constitute the vast majority of cases and endocrine therapy is the mainstay of their treatment. On the other hand, neoadjuvant or pre-surgical treatments provide a number of advantages for tumor management. In this review we will discuss the existing evidence on neoadjuvant endocrine therapy, as well as its possible future indications. Abstract Endocrine therapy (ET) has established itself as an efficacious treatment for estrogen receptor-positive (ER+) breast cancers, with a reduction in recurrence rates and increased survival rates. The pre-surgical approach with chemotherapy (NCT) has become a common form of management for large, locally advanced, or high-risk tumors. However, a good response to NCT is not usually expected in ER+ tumors. Good results with primary ET, mainly in elderly women, have encouraged studies in other stages of life, and nowadays neoadjuvant endocrine treatment (NET) has become a useful approach to many ER+ breast cancers. The aim of this review is to provide an update on the current state of art regarding the present and the future role of NET.
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Lerebours F, Cabel L, Pierga JY. Neoadjuvant Endocrine Therapy in Breast Cancer Management: State of the Art. Cancers (Basel) 2021; 13:902. [PMID: 33670042 PMCID: PMC7926493 DOI: 10.3390/cancers13040902] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 11/23/2022] Open
Abstract
Endocrine therapy is the mainstay of treatment in HR+/HER2- breast cancers, which represent about 70% of all breast cancers. Neoadjuvant therapy has been developed since the 1990s to address several issues, including breast-conserving surgery (BCS) and improvement of survival rates. For a long time, neoadjuvant endocrine therapy (NET) was confined to frail patients in order to improve surgery outcome. Since the 2000s, NET now plays a central role as a research tool for predictive endocrine sensitivity biomarkers and targeted therapies. One of the major issues in early HR+/HER2- breast cancer is to identify patients in whom chemotherapy can be safely withheld. In vivo assessment of response to NET might be the best treatment strategy to address this issue.
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Affiliation(s)
- Florence Lerebours
- Medical Oncology Department, Institut Curie, 92210 Saint-Cloud, France; (L.C.); (J.-Y.P.)
| | - Luc Cabel
- Medical Oncology Department, Institut Curie, 92210 Saint-Cloud, France; (L.C.); (J.-Y.P.)
| | - Jean-Yves Pierga
- Medical Oncology Department, Institut Curie, 92210 Saint-Cloud, France; (L.C.); (J.-Y.P.)
- Department of Medicine, University of Paris, 75006 Paris, France
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Predictive factors of 5-year relapse-free survival in HR+/HER2- breast cancer patients treated with neoadjuvant endocrine therapy: pooled analysis of two phase 2 trials. Br J Cancer 2020; 122:759-765. [PMID: 32001832 PMCID: PMC7078275 DOI: 10.1038/s41416-020-0733-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 12/20/2019] [Accepted: 01/17/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Few data are available on survival and predictive factors in early breast cancer (BC) patients treated with neoadjuvant endocrine therapy (NET). METHODS This is a pooled analysis of two multicentre, randomised non-comparative phase 2 clinical trials evaluating neoadjuvant anastrozole and fulvestrant efficacy for postmenopausal HR+/HER2- breast cancer patients: HORGEN (NCT00871858) and CARMINA02 (NCT00629616) studies. RESULTS In total, 236 patients were included in CARMINA02 and HORGEN trials. Modified intention-to-treat analysis was available for 217 patients. Median follow-up was 65.2 months. Relapse-free survival (RFS) and overall survival (OS) at 5 years were 83.7% (95% CI: 77.9-88) and 92.7% (95% CI: 88.2-95.6), respectively, with no difference between treatment arms. On univariate analysis, tumour staging (T2 vs T3-4; p = 0.0001), Ki-67 at surgery (≤10% vs >10%; p = 0.0093), pathological tumour size (pT1-2 vs pT3-4; p = 0.0012) and node status (pN negative vs positive; p = 0.007), adjuvant chemotherapy (p = 0.0167) and PEPI score (PEPI group I + II vs III; p = 0.0004) were associated with RFS. No events were observed in patients with pathological response according to the Sataloff classification. Multivariate analysis showed that preoperative endocrine prognostic index (PEPI) group III was associated with significantly worse RFS (p = 0.0069, hazard ratio = 3.33 (95% CI: 1.39-7.98)). CONCLUSIONS Postmenopausal HR+/HER2- breast cancer patients receiving NET generally have a favourable outcome. The PEPI score identifies a subset of patients of poorer prognosis who are candidates for further additional treatment.
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Yao LT, Wang MZ, Wang MS, Yu XT, Guo JY, Sun T, Li XY, Xu YY. Neoadjuvant endocrine therapy: A potential strategy for ER-positive breast cancer. World J Clin Cases 2019; 7:1937-1953. [PMID: 31423426 PMCID: PMC6695538 DOI: 10.12998/wjcc.v7.i15.1937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/21/2019] [Accepted: 07/03/2019] [Indexed: 02/05/2023] Open
Abstract
A potential strategy for patients with estrogen receptor (ER)-positive breast cancer is necessary to replace neoadjuvant chemotherapy which has limited benefit. Neoadjuvant endocrine therapy (NAE) has been indicated to be a favorable alternate approach to downstage large or locally advanced breast cancer in ER-positive, human epidermal growth factor receptor 2 (HER2)-negative (ER+/HER2-) patients, especially postmenopausal women. Previous studies have demonstrated the efficacy of various endocrine agents in NAE. Aromatase inhibitors (AIs) have proven superiority over tamoxifen as a suitable choice to optimize treatment efficacy. Fulvestrant was recently reported as an effective agent, similar to AIs. Furthermore, the addition of targeted agents exerts synergistic antiproliferative effects with endocrine agents and rapidly improves response rates in both endocrine sensitive and resistant tumors. The neoadjuvant platform provides a unique opportunity to define the appropriate strategy and address the mechanisms of endocrine resistance. In addition, the predictive value of biomarkers and genomic assays in NAE is under investigation to evaluate individual effects and validate biomarker-based strategies. In this review, we discuss the most relevant evidence on the potential of NAE for ER+ breast cancer. The current understanding also offers new insights into the identification of the optimal settings and valuable predictive tools of NAE to guide clinical treatment decisions and achieve beneficial therapeutic effects.
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Affiliation(s)
- Li-Tong Yao
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Mo-Zhi Wang
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Meng-Shen Wang
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Xue-Ting Yu
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Jing-Yi Guo
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Tie Sun
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Xin-Yan Li
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Ying-Ying Xu
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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Abstract
Endocrine therapy is essential for the treatment of patients with estrogen receptor positive (ER+) breast cancer, however, resistance and the development of metastatic disease is common. Understanding how ER+ breast cancer metastasizes is critical since the major cause of death in breast cancer is metastasis to distant organs. Results from many studies suggest dysregulation of the estrogen receptor alpha gene (ESR1 ) contributes to therapeutic resistance and metastatic biology. This review covers both pre-clinical and clinical evidence on the spectrum of ESR1 alterations including amplification, point mutations, and genomic rearrangement events driving treatment resistance and metastatic potential of ER+ breast cancer. Importantly, we describe how these ESR1 alterations may provide therapeutic opportunities to improve outcomes in patients with lethal, metastatic breast cancer.
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Affiliation(s)
- Jonathan T Lei
- Interdepartmental Graduate Program in Translational Biology & Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA.,Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xuxu Gou
- Interdepartmental Graduate Program in Translational Biology & Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA.,Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sinem Seker
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Matthew J Ellis
- Interdepartmental Graduate Program in Translational Biology & Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA.,Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA.,Departments of Medicine and Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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15
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Schuster EF, Gellert P, Segal CV, López-Knowles E, Buus R, Cheang MCU, Morden J, Robertson J, Bliss JM, Smith I, Dowsett M. Genomic Instability and TP53 Genomic Alterations Associate With Poor Antiproliferative Response and Intrinsic Resistance to Aromatase Inhibitor Treatment. JCO Precis Oncol 2019; 3:1800286. [PMID: 32914010 PMCID: PMC7446335 DOI: 10.1200/po.18.00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2019] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Although aromatase inhibitor (AI) treatment is effective in estrogen receptor-positive postmenopausal breast cancer, resistance is common and incompletely explained. Genomic instability, as measured by somatic copy number alterations (SCNAs), is important in breast cancer development and prognosis. SCNAs to specific genes may drive intrinsic resistance, or high genomic instability may drive tumor heterogeneity, which allows differential response across tumors and surviving cells to evolve resistance to treatment rapidly. We therefore evaluated the relationship between SCNAs and intrinsic resistance to treatment as measured by a poor antiproliferative response. PATIENTS AND METHODS SCNAs were determined by single nucleotide polymorphism array in baseline and surgery core-cuts from 73 postmenopausal patients randomly assigned to receive 2 weeks of preoperative AI or no AI in the Perioperative Endocrine Therapy-Individualizing Care (POETIC) trial. Fifty-six samples from the AI group included 28 poor responders (PrRs, less than 60% reduction in protein encoded by the MKI67 gene [Ki-67]) and 28 good responders (GdRs, greater than 75% reduction in Ki-67). Exome sequencing was available for 72 pairs of samples. RESULTS Genomic instability correlated with Ki-67 expression at both baseline (P < .001) and surgery (P < .001) and was higher in PrRs (P = .048). The SCNA with the largest difference between GdRs and PrRs was loss of heterozygosity observed at 17p (false discovery rate, 0.08), which includes TP53. Nine of 28 PrRs had loss of wild-type TP53 as a result of mutations and loss of heterozygosity compared with three of 28 GdRs. In PrRs, somatic alterations of TP53 were associated with higher genomic instability, higher baseline Ki-67, and greater resistance to AI treatment compared with wild-type TP53. CONCLUSION We observed that primary tumors with high genomic instability have an intrinsic resistance to AI treatment and do not require additional evolution to develop resistance to estrogen deprivation therapy.
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Affiliation(s)
- Eugene F. Schuster
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
- Eugene F. Schuster, PhD, The Institute of Cancer Research, 237 Fulham Rd, London SW3 6JB, United Kingdom; e-mail:
| | - Pascal Gellert
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
| | - Corrinne V. Segal
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
| | - Elena López-Knowles
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
| | - Richard Buus
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
| | | | - James Morden
- The Institute of Cancer Research, London, United Kingdom
| | | | | | - Ian Smith
- Royal Marsden Hospital, London, United Kingdom
| | - Mitch Dowsett
- The Institute of Cancer Research, London, United Kingdom
- Royal Marsden Hospital, London, United Kingdom
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16
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Abstract
Neoadjuvant endocrine therapy (NET) can be effective at downstaging patients with estrogen receptor-positive tumors and identifying those tumors that are endocrine sensitive and resistant. The optimal prognostic markers for stratification are under investigation. Use of NET will allow the identification of patients with estrogen receptor-positive tumors who might benefit from additional treatment and allow better understanding of endocrine resistance.
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Affiliation(s)
- Julie Grossman
- Department of Medicine, Washington University, 660 South Euclid Avenue, St Louis, MO 63110, USA
| | - Cynthia Ma
- Department of Medicine, Washington University, 660 South Euclid Avenue, St Louis, MO 63110, USA
| | - Rebecca Aft
- Department of Surgery, Washington University, 660 South Euclid Avenue, St Louis, MO 63110, USA.
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17
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Groner AC, Brown M. Role of steroid receptor and coregulator mutations in hormone-dependent cancers. J Clin Invest 2017; 127:1126-1135. [PMID: 28368289 PMCID: PMC5373886 DOI: 10.1172/jci88885] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Steroid hormones mediate critical lineage-specific developmental and physiologic responses. They function by binding their cognate receptors, which are transcription factors that drive specific gene expression programs. The requirement of most prostate cancers for androgen and most breast cancers for estrogen has led to the development of endocrine therapies that block the action of these hormones in these tumors. While initial endocrine interventions are successful, resistance to therapy often arises. We will review how steroid receptor-dependent genomic signaling is affected by genetic alterations in endocrine therapy resistance. The detailed understanding of these interactions will not only provide improved treatment options to overcome resistance, but, in the future, will also be the basis for implementing precision cancer medicine approaches.
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Affiliation(s)
- Anna C. Groner
- Department of Medical Oncology and
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Myles Brown
- Department of Medical Oncology and
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
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18
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Spring LM, Gupta A, Reynolds KL, Gadd MA, Ellisen LW, Isakoff SJ, Moy B, Bardia A. Neoadjuvant Endocrine Therapy for Estrogen Receptor-Positive Breast Cancer: A Systematic Review and Meta-analysis. JAMA Oncol 2017; 2:1477-1486. [PMID: 27367583 DOI: 10.1001/jamaoncol.2016.1897] [Citation(s) in RCA: 218] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Importance Estrogen receptor-positive (ER+) tumors of the breast are generally highly responsive to endocrine treatment. Although endocrine therapy is the mainstay of adjuvant treatment for ER+ breast cancer, the role of endocrine therapy in the neoadjuvant setting is unclear. Objective To evaluate the effect of neoadjuvant endocrine therapy (NET) on the response rate and the rate of breast conservation surgery (BCS) for ER+ breast cancer. Data Sources Based on PRISMA guidelines, a librarian-led search of PubMed and Ovid MEDLINE was performed to identify eligible trials published from inception to May 15, 2015. The search was performed in May 2015. Study Selection Inclusion criteria were prospective, randomized, neoadjuvant clinical trials that reported response rates with at least 1 arm incorporating NET (n = 20). Two authors independently analyzed the studies for inclusion. Data Extraction and Synthesis Pooled odds ratios (ORs), 95% CIs, and P values were estimated for end points using the fixed- and random-effects statistical model. Results The analysis included 20 studies with 3490 unique patients. Compared with combination chemotherapy, NET as monotherapy with aromatase inhibitors had a similar clinical response rate (OR, 1.08; 95% CI, 0.50-2.35; P = .85; n = 378), radiological response rate (OR, 1.38; 95% CI, 0.92-2.07; P = .12; n = 378), and BCS rate (OR, 0.65; 95% CI, 0.41-1.03; P = .07; n = 334) but with lower toxicity. Aromatase inhibitors were associated with a significantly higher clinical response rate (OR, 1.69; 95% CI, 1.36-2.10; P < .001; n = 1352), radiological response rate (OR, 1.49; 95% CI, 1.18-1.89; P < .001; n = 1418), and BCS rate (OR, 1.62; 95% CI, 1.24-2.12; P < .001; n = 918) compared with tamoxifen. Dual combination therapy with growth factor pathway inhibitors was associated with a higher radiological response rate (OR, 1.59; 95% CI, 1.04-2.43; P = .03; n = 355), but not clinical response rate (OR, 0.76; 95% CI, 0.54-1.07; P = .11; n = 537), compared with endocrine monotherapy. The incidence of pathologic complete response was low (<10%). Conclusions and Relevance Neoadjuvant endocrine therapy, even as monotherapy, is associated with similar response rates as neoadjuvant combination chemotherapy but with significantly lower toxicity, suggesting that NET needs to be reconsidered as a potential option in the appropriate setting. Additional research is needed to develop rational NET combinations and predictive biomarkers to personalize the optimal neoadjuvant strategy for ER+ breast cancer.
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Affiliation(s)
- Laura M Spring
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Arjun Gupta
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Kerry L Reynolds
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Michele A Gadd
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Leif W Ellisen
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Steven J Isakoff
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Beverly Moy
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston
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19
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Impact of mutational profiles on response of primary oestrogen receptor-positive breast cancers to oestrogen deprivation. Nat Commun 2016; 7:13294. [PMID: 27827358 PMCID: PMC5105193 DOI: 10.1038/ncomms13294] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 09/19/2016] [Indexed: 12/19/2022] Open
Abstract
Pre-surgical studies allow study of the relationship between mutations and response of oestrogen receptor-positive (ER+) breast cancer to aromatase inhibitors (AIs) but have been limited to small biopsies. Here in phase I of this study, we perform exome sequencing on baseline, surgical core-cuts and blood from 60 patients (40 AI treated, 20 controls). In poor responders (based on Ki67 change), we find significantly more somatic mutations than good responders. Subclones exclusive to baseline or surgical cores occur in ∼30% of tumours. In phase II, we combine targeted sequencing on another 28 treated patients with phase I. We find six genes frequently mutated: PIK3CA, TP53, CDH1, MLL3, ABCA13 and FLG with 71% concordance between paired cores. TP53 mutations are associated with poor response. We conclude that multiple biopsies are essential for confident mutational profiling of ER+ breast cancer and TP53 mutations are associated with resistance to oestrogen deprivation therapy.
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20
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Cottu PH. [Systemic neoadjuvant therapy of luminal breast cancer in 2016]. Bull Cancer 2016; 104:69-78. [PMID: 27817858 DOI: 10.1016/j.bulcan.2016.09.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 09/25/2016] [Accepted: 09/26/2016] [Indexed: 12/31/2022]
Abstract
Neoadjuvant systemic therapies have been extensively evaluated in luminal breast cancer. Conventional cytotoxic chemotherapy increases breast conservation rate, albeit with a low level of complete pathological response of uncertain clinical significance. Endocrine therapies allow similar clinical results with much less side effects. Biological criteria of response to endocrine therapies are still being defined. The neoadjuvant setting must be used for early development of new compounds and to further document biological mechanisms of sensitivity and resistance to treatments.
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Affiliation(s)
- Paul H Cottu
- PSL Research University, institut Curie, département d'oncologie médicale, 26, rue d'Ulm, 75005 Paris, France.
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21
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Favicchio R, Thepaut C, Zhang H, Arends R, Stebbing J, Giamas G. Strategies in functional proteomics: Unveiling the pathways to precision oncology. Cancer Lett 2016; 382:86-94. [PMID: 26850375 DOI: 10.1016/j.canlet.2016.01.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/19/2016] [Accepted: 01/26/2016] [Indexed: 02/07/2023]
Abstract
Personalised strategies in cancer care are required to overcome the therapeutic challenges posed by variability between patients and disease subsets. To this end, enhanced precision tools must be developed to describe the molecular drivers of malignant proliferation. Such tools must also identify druggable targets and biomarkers in order to provide essential information regarding drug development and therapeutic outcome. Here we discuss how proteomics-based approaches provide a set of viable methodologies capable of delivering quantitative information throughout the main stages of personalised oncology and a ratiometric platform that delivers systems-wide methods for drug evaluation.
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Affiliation(s)
- Rosy Favicchio
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK.
| | - Chloe Thepaut
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
| | - Hua Zhang
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
| | - Richard Arends
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
| | - Justin Stebbing
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
| | - Georgios Giamas
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK.
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22
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FOXA1 overexpression mediates endocrine resistance by altering the ER transcriptome and IL-8 expression in ER-positive breast cancer. Proc Natl Acad Sci U S A 2016; 113:E6600-E6609. [PMID: 27791031 DOI: 10.1073/pnas.1612835113] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Forkhead box protein A1 (FOXA1) is a pioneer factor of estrogen receptor α (ER)-chromatin binding and function, yet its aberration in endocrine-resistant (Endo-R) breast cancer is unknown. Here, we report preclinical evidence for a role of FOXA1 in Endo-R breast cancer as well as evidence for its clinical significance. FOXA1 is gene-amplified and/or overexpressed in Endo-R derivatives of several breast cancer cell line models. Induced FOXA1 triggers oncogenic gene signatures and proteomic profiles highly associated with endocrine resistance. Integrated omics data reveal IL8 as one of the most perturbed genes regulated by FOXA1 and ER transcriptional reprogramming in Endo-R cells. IL-8 knockdown inhibits tamoxifen-resistant cell growth and invasion and partially attenuates the effect of overexpressed FOXA1. Our study highlights a role of FOXA1 via IL-8 signaling as a potential therapeutic target in FOXA1-overexpressing ER-positive tumors.
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23
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Lerebours F, Rivera S, Mouret-Reynier MA, Alran S, Venat-Bouvet L, Kerbrat P, Salmon R, Becette V, Bourgier C, Cherel P, Boussion V, Balleyguier C, Thibault F, Lavau-Denes S, Nabholz JM, Sigal B, Trassard M, Mathieu MC, Martin AL, Lemonnier J, Mouret-Fourme E. Randomized phase 2 neoadjuvant trial evaluating anastrozole and fulvestrant efficacy for postmenopausal, estrogen receptor-positive, human epidermal growth factor receptor 2-negative breast cancer patients: Results of the UNICANCER CARMINA 02 French trial (UCBG 0609). Cancer 2016; 122:3032-40. [PMID: 27315583 DOI: 10.1002/cncr.30143] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/31/2016] [Accepted: 04/21/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Treatment strategies for locally advanced breast cancer in elderly patients too frail to receive neoadjuvant chemotherapy and the introduction of new classes of drugs in the early 2000s have led to the consideration of endocrine therapy as a neoadjuvant treatment for younger hormone receptor (HR)-positive, postmenopausal patients not eligible for primary breast-conserving surgery (BCS). METHODS This was a multicenter, phase 2, randomized trial designed to evaluate as its primary objective the clinical response rate after up to 6 months of neoadjuvant endocrine therapy (NET) alone in HR-positive/human epidermal growth factor receptor 2 (HER2)-negative patients with 1 mg of anastrozole (arm A) or 500 mg of fulvestrant (arm B). Secondary objectives included the BCS rate, tumor response assessment (breast ultrasound and magnetic resonance imaging), pathological response (Sataloff classification), safety profile, relapse-free survival (RFS), and predictive markers of responses and outcomes. RESULTS From October 2007 to April 2011, 116 women (mean age, 71.6 years) with operable infiltrating breast adenocarcinoma (T2-T4, N0-N3, M0) were randomized to receive anastrozole or fulvestrant. The clinical response rates at 6 months were 52.6% (95% confidence interval [CI], 41%-64%) in arm A and 36.8% (95% CI, 25%-49%) in arm B. BCS was performed for 57.6% of arm A patients and 50% of arm B patients. The RFS rates at 3 years were 94.9% in arm A and 91.2% in arm B. The Preoperative Endocrine Prognostic Index status was significantly predictive of RFS. Both treatments were well tolerated. CONCLUSIONS Both drugs are effective and well tolerated as NET in postmenopausal women with HR-positive/HER2-negative breast cancer. NET could be considered a treatment option in this subpopulation. Cancer 2016;122:3032-3040. © 2016 American Cancer Society.
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Holst F. Estrogen receptor alpha gene amplification in breast cancer: 25 years of debate. World J Clin Oncol 2016; 7:160-173. [PMID: 27081639 PMCID: PMC4826962 DOI: 10.5306/wjco.v7.i2.160] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 01/05/2016] [Accepted: 02/16/2016] [Indexed: 02/06/2023] Open
Abstract
Twenty-five years ago, Nembrot and colleagues reported amplification of the estrogen receptor alpha gene (ESR1) in breast cancer, initiating a broad and still ongoing scientific debate on the prevalence and clinical significance of this genetic aberration, which affects one of the most important genes in breast cancer. Since then, a multitude of studies on this topic has been published, covering a wide range of divergent results and arguments. The reported prevalence of this alteration in breast cancer ranges from 0% to 75%, suggesting that ESR1 copy number analysis is hampered by technical and interpreter issues. To date, two major issues related to ESR1 amplification remain to be conclusively addressed: (1) The extent to which abundant amounts of messenger RNA can mimic amplification in standard fluorescence in situ hybridization assays in the analysis of strongly expressed genes like ESR1, and (2) the clinical relevance of ESR1 amplification: Such relevance is strongly disputed, with data showing predictive value for response as well as for resistance of the cancer to anti-estrogen therapies, or for subsequent development of cancers in the case of precursor lesions that display amplification of ESR1. This review provides a comprehensive summary of the various views on ESR1 amplification, and highlights explanations for the contradictions and conflicting data that could inform future ESR1 research.
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