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Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
Published on: November 23, 2014
Biomarkers for angiogenesis and antiangiogenic drugs in clinical oncology
1Laboratory of Hematology-Oncology, European Institute of Oncology, via Ripamonti 435, Milan, Italy. francesco.bertolini@ieo.it
Aims:
The clinical use of anti-angiogenic drugs, alone or in combination with other drugs, is increasing in medical oncology. However, identifying the best suited drug and the optimal dosage and schedule for treatment of patients remain challenging.
Methods And Results:
We reviewed data about surrogate biomarkers of angiogenesis and anti-angiogenic drug activity currently available in the literature. Circulating endothelial cells (CECs) and circulating endothelial progenitors (CEPs) have been found to have some predictive potential in some clinical trials involving advanced breast cancer patients. Molecular surrogate markers, on the other hand, are more scanty at the present time, because the identification of truly endothelial-cell-restricted genes and/or antigens has been so far more elusive.
Conclusion:
The search and validation of new biomarkers for angiogenesis and anti-angiogenic drug activity have many biological, technical and clinical facets which render this task particularly complex. An accurate planning of biomarker search and validation throughout future clinical studies is highly warranted.
Insights
Identifying optimal anti-angiogenic drugs and dosages is challenging. Research into predictive biomarkers like circulating endothelial cells (CECs) and progenitors (CEPs) shows promise for improving cancer treatment. Further validation is needed.
Area of Science:
- Oncology
- Biomarker Discovery
Background:
- Anti-angiogenic drugs are increasingly used in cancer therapy, but selecting the right drug, dose, and schedule remains difficult.
- Predicting patient response to these therapies is a significant clinical challenge.
Purpose of the Study:
- To review current surrogate biomarkers for angiogenesis and anti-angiogenic drug activity.
- To highlight the complexities and needs in biomarker research for personalized cancer treatment.
Main Methods:
- Literature review of existing data on angiogenesis biomarkers.
- Analysis of circulating endothelial cells (CECs) and circulating endothelial progenitors (CEPs) as predictive markers.
Main Results:
- Circulating endothelial cells (CECs) and circulating endothelial progenitors (CEPs) show predictive potential in advanced breast cancer trials.
- Molecular surrogate markers are currently limited due to difficulties in identifying endothelial-cell-specific targets.
Conclusions:
- Validating new biomarkers for angiogenesis and anti-angiogenic drug activity is complex, involving biological, technical, and clinical factors.
- Careful planning and validation in future clinical studies are essential for advancing personalized cancer therapy.
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