Related Experiment Video
Updated: Jun 17, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Targeting the epidermal growth factor receptor in epithelial ovarian cancer: current knowledge and future challenges
Doris R Siwak1, Mark Carey, Bryan T Hennessy
1Department of Systems Biology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
Abstract:
The epidermal growth factor receptor is overexpressed in up to 60% of ovarian epithelial malignancies. EGFR regulates complex cellular events due to the large number of ligands, dimerization partners, and diverse signaling pathways engaged. In ovarian cancer, EGFR activation is associated with increased malignant tumor phenotype and poorer patient outcome. However, unlike some other EGFR-positive solid tumors, treatment of ovarian tumors with anti-EGFR agents has induced minimal response. While the amount of information regarding EGFR-mediated signaling is considerable, current data provides little insight for the lack of efficacy of anti-EGFR agents in ovarian cancer. More comprehensive, systematic, and well-defined approaches are needed to dissect the roles that EGFR plays in the complex signaling processes in ovarian cancer as well as to identify biomarkers that can accurately predict sensitivity toward EGFR-targeted therapeutic agents. This new knowledge could facilitate the development of rational combinatorial therapies to sensitize tumor cells toward EGFR-targeted therapies.
Insights
Epidermal growth factor receptor (EGFR) is overexpressed in ovarian cancer, but anti-EGFR treatments show limited efficacy. New research is needed to understand EGFR signaling and identify biomarkers for effective targeted therapies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Epidermal growth factor receptor (EGFR) is frequently overexpressed in ovarian epithelial malignancies.
- EGFR signaling influences tumor progression and patient outcomes in ovarian cancer.
- Current anti-EGFR therapies demonstrate minimal response in ovarian tumors, unlike other EGFR-positive solid tumors.
Purpose of the Study:
- To investigate the complex roles of EGFR in ovarian cancer signaling pathways.
- To identify predictive biomarkers for sensitivity to EGFR-targeted therapies.
- To inform the development of novel combinatorial treatment strategies.
Main Methods:
- Systematic analysis of EGFR-mediated signaling pathways.
- Exploration of molecular mechanisms underlying treatment resistance.
- Biomarker discovery for patient stratification.
Main Results:
- EGFR activation correlates with increased malignancy and poorer prognosis in ovarian cancer.
- Existing data inadequately explains the limited efficacy of anti-EGFR agents.
- A need for comprehensive approaches to dissect EGFR's role and identify predictive biomarkers is highlighted.
Conclusions:
- Further research is crucial to understand EGFR's complex signaling in ovarian cancer.
- Identifying biomarkers is essential for predicting response to EGFR-targeted therapies.
- Developing rational combinatorial therapies may overcome resistance and improve treatment outcomes.
Related Concept Videos
Mitogens and the Cell Cycle
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...

