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New approaches to the endocrine prevention and treatment of breast cancer
Anthony Howell1, Sacha J Howell, D Gareth Evans
1CRUK Department of Medical Oncology, Christie Hospital NHS Trust, University of Manchester, Wilmslow Road, M20 4BX, Manchester, UK. maria.parker@christie-tr.nwest.nhs.uk
Abstract:
All major endocrine prevention approaches act via the estrogen receptor (ER). A simple hypothesis concerning ER expression and breast cancer risk is outlined. We review breast cancer prevention trials with tamoxifen, raloxifene, aromatase inhibitors, and ovarian suppression. Current and planned endocrine prevention trials in populations of pre- and postmenopausal women at risk of breast cancer are summarized and endocrine therapy after primary surgery and for advanced disease discussed.
Insights
Endocrine prevention strategies target the estrogen receptor (ER) to reduce breast cancer risk. This review examines ER-based prevention trials and discusses future directions for high-risk women.
Area of Science:
- Oncology
- Endocrinology
- Pharmacology
Background:
- Estrogen receptor (ER) is a key target in endocrine therapies.
- Endocrine prevention aims to mitigate breast cancer development by modulating hormonal pathways.
Purpose of the Study:
- To outline a hypothesis linking ER expression to breast cancer risk.
- To review existing and ongoing endocrine prevention trials for breast cancer.
- To discuss the role of endocrine therapy in different stages of breast cancer management.
Main Methods:
- Review of breast cancer prevention trials utilizing tamoxifen, raloxifene, aromatase inhibitors, and ovarian suppression.
- Summary of current and planned endocrine prevention trials in at-risk women.
- Discussion of endocrine therapy applications post-surgery and for advanced disease.
Main Results:
- All major endocrine prevention approaches function through the estrogen receptor (ER).
- Evidence from various trials informs the understanding of ER-mediated breast cancer prevention.
- Ongoing and future trials are expanding the scope of endocrine prevention strategies.
Conclusions:
- Estrogen receptor (ER) is central to endocrine prevention of breast cancer.
- A comprehensive understanding of ER pathways is crucial for developing effective prevention strategies.
- Endocrine therapy plays a vital role in both prevention and treatment across various breast cancer scenarios.
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