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Updated: Aug 19, 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
HER-2/Neu signaling and therapeutic approaches in breast cancer
Binhua P Zhou1, Yan Li, Mien-Chie Hung
1Department of Molecular and Cellular Oncology, Breast Cancer Basic Research Program, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
Abstract:
Amplification or overexpression of HER-2/neu occurs in 30% of human breast and ovarian cancers and is associated with a poor clinical outcome, including short survival and time to relapse. Recent advances in our understanding of HER-2/neu signaling pathways have significantly increased our understanding of the tumorigenesis of breast cancer and provided new targets for treating breast and ovarian tumors that overexpress HER-2/neu. In this review, we focus on the new signaling pathways mediated by HER-2/neu in breast cancer and discuss our understanding of these pathways, as they seem to be particularly important in mediating cell survival and growth under a wide variety of circumstances in breast cancer.
Insights
Human epidermal growth factor receptor 2-neu (HER-2/neu) overexpression in breast and ovarian cancers is linked to poor outcomes. This review explores new HER-2/neu signaling pathways crucial for cancer cell survival and growth.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Amplification or overexpression of HER-2/neu occurs in 30% of breast and ovarian cancers.
- HER-2/neu overexpression is associated with poor clinical outcomes, including reduced survival and shorter time to relapse.
Purpose of the Study:
- To review recent advances in understanding HER-2/neu signaling pathways in breast cancer.
- To identify new therapeutic targets for HER-2/neu-overexpressing breast and ovarian tumors.
Main Methods:
- Literature review focusing on HER-2/neu signaling.
- Analysis of pathways mediating cell survival and growth in breast cancer.
Main Results:
- Advances in understanding HER-2/neu signaling have improved insights into breast cancer tumorigenesis.
- Specific pathways mediated by HER-2/neu are critical for cancer cell survival and growth.
Conclusions:
- Targeting HER-2/neu signaling pathways offers potential therapeutic strategies for HER-2/neu-positive breast and ovarian cancers.
- Further research into these pathways is essential for developing effective treatments.
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