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Updated: May 12, 2026

Validated Immunochemical Assay for Comprehensive Determination of the Human Epidermal Growth Factor Receptor 2 Released from and Bound to Cells
Published on: May 9, 2025
Human epidermal growth factor receptor 2-targeted therapies in breast cancer
Abstract:
Human epidermal growth factor receptor 2 (HER2) was acknowledged as an important therapeutic target in breast cancer more than 25 years ago. Subsequently, significant basic science and translational discoveries have resulted in the approval of four HER2-targeted therapies over the past 15 years. This editorial discusses future challenges regarding selection and development of treatments for HER2-positive breast cancer, which can only be met by continuing to support research efforts into the basic mechanisms by which cancer cells escape targeted therapies. Identifying specific molecular mechanisms underlying the sensitivity or resistance to each HER2-targeted agent will ultimately allow individualized therapy for each patient.
Insights
Future research into how cancer cells evade human epidermal growth factor receptor 2 (HER2) targeted therapies is crucial. Understanding resistance mechanisms will enable personalized treatment selection for HER2-positive breast cancer patients.
Area of Science:
- Oncology
- Molecular Biology
- Translational Research
Background:
- Human epidermal growth factor receptor 2 (HER2) has been a key therapeutic target in breast cancer for over 25 years.
- Four HER2-targeted therapies have been approved in the last 15 years, stemming from significant basic science and translational discoveries.
- Despite advances, challenges remain in optimizing treatment selection for HER2-positive breast cancer.
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