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Targeting HER2 in breast cancer: overview of long-term experience
Evan Lantz1, Ivan Cunningham, Gerald M Higa
1School of Pharmacy.
Abstract:
The ability to probe diseases at the genomic level has improved our understanding and enhanced the treatment of breast cancer. One important finding relates to the HER2 oncogene which encodes a novel transmembrane receptor that, when overexpressed, appears to confer growth and survival advantages to breast tumor cells. This fortuitous discovery enabled researchers to develop agents which could inhibit receptor-mediated tumor cell signaling. Numerous clinical trials of such agents have demonstrated improved outcomes in patients with HER2-positive breast cancer. Nonetheless, not all tumors respond to therapy targeting the receptor, while relapses occur after an initial response to treatment. This paper provides a historical and current perspective of the treatment of patients with HER2-positive breast cancer.
Insights
Researchers explore the HER2 oncogene
Area of Science:
- Genomics in oncology
- Molecular biology of cancer
Background:
- Genomic insights have advanced breast cancer understanding and treatment.
- The HER2 oncogene, when overexpressed, promotes breast tumor cell growth and survival.
Purpose of the Study:
- To provide a historical and current perspective on treating HER2-positive breast cancer.
- To review the development and impact of therapies targeting the HER2 receptor.
Main Methods:
- Review of historical and current clinical trial data.
- Analysis of genomic findings related to the HER2 oncogene.
- Examination of therapeutic strategies targeting HER2-positive breast tumors.
Main Results:
- Overexpression of the HER2 receptor confers growth and survival advantages.
- Targeted therapies inhibiting HER2 signaling have improved outcomes in HER2-positive breast cancer.
- Challenges remain, including non-response and relapse after initial treatment.
Conclusions:
- Therapies targeting HER2 have significantly impacted HER2-positive breast cancer treatment.
- Ongoing research is crucial to address treatment resistance and improve patient outcomes.
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