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Updated: Jun 21, 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
[Anti-HER2 antibody and small-molecule tyrosine kinase inhibitor therapy targeting EGFR signal pathway]
Hiroyasu Yamashiro1, Masakazu Toi
1Department of Surgery and Oncology, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto, Japan.
Abstract:
The human epidermal growth factor receptor (HER) family plays a crucial role in progression of breast cancer. Anti-HER agents such as trastuzumab and lapatinib are known to exhibit significant antitumor activities in human HER2-positive breast cancers. At present, several novel anti-HER agents are being tested in clinical trials. These agents are estimated to be able to overcome resistance to previous anti-HER agents. Simultaneously, correlated research with these agents have contributed to improve our understanding of the molecular mechanism of HER-dependent breast cancer growth.
Insights
Novel anti-HER agents show promise in overcoming resistance in HER2-positive breast cancer. Research into these agents is advancing the understanding of HER-dependent cancer growth mechanisms.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- The human epidermal growth factor receptor (HER) family is implicated in breast cancer progression.
- Current anti-HER therapies like trastuzumab and lapatinib are effective against HER2-positive breast cancers.
Purpose of the Study:
- To review the development and potential of novel anti-HER agents.
- To explore their role in overcoming therapeutic resistance.
- To enhance understanding of HER-dependent breast cancer growth.
Main Methods:
- Review of clinical trial data for novel anti-HER agents.
- Analysis of preclinical research on molecular mechanisms.
- Synthesis of current literature on therapeutic resistance.
Main Results:
- Several novel anti-HER agents are in clinical trials.
- These agents are anticipated to overcome resistance to existing therapies.
- Research is deepening the understanding of HER-mediated breast cancer growth.
Conclusions:
- Novel anti-HER agents represent a promising therapeutic avenue for HER2-positive breast cancer.
- Continued research is crucial for understanding and overcoming resistance mechanisms.
- Advancements in this field improve treatment strategies for breast cancer.
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