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Updated: Jun 13, 2026

A Simple Bioassay for the Evaluation of Vascular Endothelial Growth Factors
Published on: March 15, 2016
Vascular endothelial growth factor polymorphisms: role in response and toxicity of tyrosine kinase inhibitors
Susan A J Vaziri1, Jenny Kim, Mahrukh K Ganapathi
1Taussig Cancer Institute - R40, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. vaziris@ccf.org
Abstract:
Angiogenesis is central to the growth of normal tissues and tumors. Inhibiting this pathway has been a strategy for drug development for tumors not responsive to most agents used in chemotherapy. Notably, signaling mediated by vascular endothelial growth factor (VEGF) is a key target because aberrant signaling via this pathway is frequently associated with neoangiogenesis in tumors. The drug-discovery effort to blunt VEGF signaling has led to the approval of bevacizumab and several receptor tyrosine kinase inhibitors (TKIs) that have shown efficacy in the clinical management of breast, colorectal, lung, and kidney cancer. Understanding the genetic variability in VEGF and VEGF receptor has led to identifying genotypic variations (single nucleotide polymorphisms [SNPs]) associated with treatment outcome and toxicity. Notably, identification of SNPs in VEGF associated with angiogenesis inhibitor treatment-induced hypertension and outcome provides exciting opportunities for personalized medicine to improve outcome and reduced toxicity with these novel TKIs.
Insights
Targeting vascular endothelial growth factor (VEGF) with inhibitors is crucial for treating various cancers. Genetic variations in VEGF impact treatment outcomes and toxicity, paving the way for personalized cancer medicine.
Area of Science:
- Oncology
- Pharmacogenomics
- Molecular Biology
Background:
- Angiogenesis, the formation of new blood vessels, is essential for both normal tissue development and tumor growth.
- Vascular Endothelial Growth Factor (VEGF) signaling is a critical pathway frequently dysregulated in tumors, driving neoangiogenesis.
- Inhibiting VEGF signaling has led to approved therapies like bevacizumab and receptor tyrosine kinase inhibitors (TKIs) for several cancers.
Purpose of the Study:
- To explore the role of genetic variability in VEGF and its receptors in cancer treatment.
- To identify specific genetic markers that predict patient response and toxicity to anti-angiogenic therapies.
- To highlight the potential for personalized medicine approaches in cancer treatment based on genetic profiles.
Main Methods:
- Analysis of genetic variations, specifically single nucleotide polymorphisms (SNPs), within the VEGF pathway.
- Correlation of identified SNPs with clinical outcomes, including treatment efficacy and adverse events.
- Evaluation of treatment-induced hypertension in relation to specific VEGF genotypes.
Main Results:
- Genotypic variations (SNPs) in VEGF and its receptors are associated with treatment outcomes in patients receiving anti-angiogenic therapies.
- Specific SNPs in VEGF are linked to the development of hypertension as a side effect of angiogenesis inhibitor treatment.
- These genetic markers offer insights into differential patient responses to VEGF-targeted drugs.
Conclusions:
- Understanding genetic variability in the VEGF pathway is key to optimizing anti-angiogenic cancer therapy.
- Identification of SNPs provides a basis for personalized medicine strategies to improve treatment efficacy and reduce toxicity.
- Pharmacogenomic approaches utilizing VEGF SNPs can enhance the clinical management of cancers treated with angiogenesis inhibitors.
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