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.

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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