Vascular endothelial growth factor: much more than an angiogenesis factor

Area of Science:

• Molecular biology
• Cell biology
• Pathology

Background:

• Vascular endothelial growth factor (VEGF) is primarily known for its role in embryonic vasculogenesis and pathological angiogenesis, such as in cancer.
• Early research indicated VEGF expression in adult tissues without active neovascularization, suggesting functions beyond angiogenesis.
• Recent studies confirm that VEGF has additional, crucial functions in maintaining normal cellular compartments.

Purpose of the Study:

• To explore the non-angiogenic functions of Vascular endothelial growth factor (VEGF).
• To highlight the implications of these diverse VEGF functions for therapeutic interventions.

Main Methods:

• Review of existing literature on VEGF expression and function.
• Analysis of studies investigating VEGF in normal adult tissues.
• Examination of the impact of VEGF on endothelial and neural cell maintenance.

Main Results:

• VEGF transcripts are widely expressed in adult tissues not undergoing neovascularization.
• VEGF is essential for the normal maintenance of endothelial and neural cell compartments.
• These findings suggest VEGF has critical roles beyond angiogenesis.

Conclusions:

• VEGF possesses functions independent of angiogenesis, including maintaining normal cell compartments.
• Understanding these additional roles is critical for evaluating the safety and efficacy of VEGF-targeted therapies.
• Therapeutic strategies inhibiting VEGF or its receptors must consider potential impacts on normal physiological functions.