Modelling approaches for angiogenesis.

Area of Science:

• Oncology
• Vascular Biology
• Drug Development

Background:

• Tumor growth and progression are dependent on the development of a functional tumor vasculature.
• Therapies targeting tumor vasculature include anti-angiogenic (preventing new vessel formation) and vascular-targeting (damaging existing vessels) approaches.
• Effective development of these therapeutic agents necessitates robust preclinical models for analysis and optimization.

Purpose of the Study:

• To review classical and recent preclinical assays for evaluating anti-angiogenic and vascular-targeting therapies.
• To discuss methods for target identification, including gene and protein expression analysis.
• To highlight in vivo imaging techniques for assessing vascular morphological and functional changes.

Main Methods:

• Review of in vitro and in vivo angiogenesis assays.
• Discussion of gene and protein expression analysis for target identification.
• Description of in vivo imaging techniques for vasculature assessment.

Main Results:

• Classical angiogenesis assays are detailed, with emphasis on their application for anti-angiogenic compounds.
• Recent approaches for target identification are presented.
• The utility of imaging techniques for studying tumor vasculature is discussed.

Conclusions:

• Preclinical models and assays are crucial for the development and optimization of anti-angiogenic and vascular-targeting therapies.
• A range of assays, from classical angiogenesis tests to advanced imaging, are available for evaluating these agents.
• The review provides a framework for selecting appropriate assays based on the therapeutic strategy.