Vascular Normalization: A New Window Opened for Cancer Therapies.

Area of Science:

• Oncology
• Vascular Biology
• Immunotherapy

Background:

• Antiangiogenic therapies for tumor blood vessels show limited success due to side effects like resistance.
• Aberrant tumor vasculature hinders effective cancer treatment and promotes metastasis.
• Tumor vascular normalization offers a promising strategy to improve therapeutic outcomes.

Purpose of the Study:

• To explore molecular mechanisms underlying tumor vascular normalization.
• To investigate the interplay between vascular normalization and immunotherapy.
• To identify biomarkers and imaging technologies for optimizing vascular normalization strategies.

Main Methods:

• Review of preclinical and clinical studies on antiangiogenic and vascular normalizing approaches.
• Exploration of molecular targets including endothelial cell metabolism, microRNAs, and extracellular matrix.
• Analysis of the synergistic effects of immunotherapy and vascular normalization.

Main Results:

• Tumor vascular normalization reduces invasion and metastasis.
• Normalization enhances the efficacy of chemotherapy, radiation, and immunotherapy.
• Immunotherapy-induced vascular normalization boosts immune effector cell infiltration, creating a positive feedback loop.
• Imaging technologies and serum markers can identify optimal windows for vascular normalization therapy.

Conclusions:

• Tumor vascular normalization is a superior strategy compared to traditional antiangiogenic approaches.
• Combining immunotherapy with agents promoting vascular normalization is recommended for enhanced therapeutic benefits.
• Biomarkers and imaging are crucial for timing and monitoring vascular normalization interventions.