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Updated: Aug 15, 2026

A Simple Bioassay for the Evaluation of Vascular Endothelial Growth Factors
Published on: March 15, 2016
Vascular endothelial growth factor receptors: expression and function in solid tumors
Jane S Wey1, Oliver Stoeltzing, Lee M Ellis
1Department of Surgical Oncology, Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
Abstract:
Vascular endothelial growth factor (VEGF) and its family members are important mediators of tumor angiogenesis. The multiple functions of the VEGF are mediated through complex and selective interactions between the ligands, their high-affinity tyrosine kinase receptors, and co-receptors (neuropilins). While these receptors are historically described as being exclusively expressed on endothelial cells, emerging evidence has documented expression of these receptors on a number of nonendothelial cells, including tumor cells. The VEGF receptors (VEGFR) have also been shown to be functional in a number of nonendothelial systems, where they may be targets for anti-VEGF therapy. This article will review the basic effects and interactions of the VEGFRs on endothelial cells and the evidence for their expression and function on tumor cells. The novel expression of VEGFRs on tumor cells contributes to the understanding of the complex roles of VEGF within the tumor microenvironment, potentially affecting both endothelial cells and tumor cells expressing the VEGFRs. This elucidation of VEGF activity may further refine antineoplastic regimens for solid malignancies.
Insights
Vascular endothelial growth factor receptors (VEGFRs) are found on tumor cells, not just blood vessel cells. This discovery offers new therapeutic targets for anti-VEGF cancer treatments.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Vascular endothelial growth factor (VEGF) is crucial for tumor angiogenesis.
- VEGF signaling involves ligands, tyrosine kinase receptors (VEGFRs), and neuropilin co-receptors.
- VEGFRs are traditionally known to be on endothelial cells.
Purpose of the Study:
- To review the effects and interactions of VEGFRs on endothelial cells.
- To present evidence for VEGFR expression and function on tumor cells.
- To explore the implications of VEGFRs on tumor cells for anti-VEGF therapy.
Main Methods:
- Literature review of existing studies on VEGF and VEGFR.
- Analysis of evidence for VEGFR expression in non-endothelial and tumor cells.
- Discussion of the functional implications of VEGFRs in tumor cells.
Main Results:
- Emerging evidence shows VEGFR expression on various non-endothelial cells, including tumor cells.
- VEGFRs are functional in these non-endothelial systems.
- VEGF signaling in tumor cells adds complexity to the tumor microenvironment.
Conclusions:
- VEGFR expression on tumor cells is a significant finding.
- This novel expression expands the understanding of VEGF's role in cancer.
- Targeting VEGFRs on tumor cells may refine anti-cancer treatment strategies.
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