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Validated Immunochemical Assay for Comprehensive Determination of the Human Epidermal Growth Factor Receptor 2 Released from and Bound to Cells
08:28

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

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Human Epidermal Growth Factor Receptor 2 (HER2) in Cancers: Overexpression and Therapeutic Implications

Nida Iqbal1, Naveed Iqbal2

  • 1Department of Medical Oncology, Dr. B. R. A. Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi 110029, India.

Molecular Biology International
|October 3, 2014
PubMed

Insights

Human epidermal growth factor receptor 2 (HER2) drives cancer cell proliferation and is a biomarker in breast and gastric cancers. While HER2-targeted therapies benefit some patients, their efficacy varies across different HER2-overexpressing cancers.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Human epidermal growth factor receptor 2 (HER2) is a tyrosine kinase receptor implicated in cell proliferation and tumorigenesis.
  • HER2 amplification/overexpression is a key biomarker in 15-30% of breast and gastric cancers, and also observed in other malignancies.

Purpose of the Study:

  • To review the role of HER2 in various cancer types.
  • To discuss current and emerging therapeutic strategies targeting HER2.

Main Methods:

  • Literature review of studies on HER2 function, expression, and targeted therapies.
  • Analysis of clinical outcomes in HER2-positive cancers treated with HER2-directed agents.

Main Results:

  • HER2 signaling pathways promote cell growth and are crucial in specific cancers.
  • HER2-targeted therapies have significantly improved outcomes in HER2-positive breast and gastric cancers.
  • Therapeutic success is limited in other HER2-overexpressing cancers, indicating a need for further research.

Conclusions:

  • HER2 is a critical oncogenic driver and therapeutic target in multiple cancer types.
  • The effectiveness of HER2-directed therapies is cancer-type dependent.
  • Further investigation into HER2's role and novel therapeutic approaches is warranted for broader patient benefit.

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