Tumor angiogenesis and vascular normalization: alternative therapeutic targets

Area of Science:

• Oncology
• Vascular Biology
• Cancer Therapeutics

Background:

• Tumor cells promote abnormal blood vessel growth via pro-angiogenic factors, leading to poor perfusion and a hypoxic microenvironment.
• Impaired tumor perfusion enhances cancer cell invasiveness, hinders immune cell function, and reduces chemotherapy and radiotherapy efficacy.
• Abnormal tumor vasculature is a significant challenge in effective cancer treatment.

Purpose of the Study:

• To review the mechanisms driving tumor angiogenesis.
• To explore strategies for achieving tumor vascular normalization.
• To highlight the therapeutic potential of normalizing tumor vasculature.

Main Methods:

• Review of existing literature on tumor angiogenesis.
• Analysis of mechanisms underlying abnormal tumor vascularization.
• Examination of therapeutic strategies targeting tumor vasculature.

Main Results:

• Tumor angiogenesis results in disorganized, immature, and permeable blood vessels.
• Hypoxia resulting from poor perfusion selects for aggressive tumor cells and impairs immune responses.
• Vascular normalization strategies aim to restore functional tumor perfusion and oxygenation.

Conclusions:

• Normalizing tumor vasculature is a promising therapeutic strategy.
• Restored perfusion and oxygenation can limit tumor invasiveness.
• Vascular normalization may improve the efficacy of existing anticancer treatments like chemotherapy and radiotherapy.