Vascularized Tumor-on-a-Chip Model as a Platform for Studying Tumor-Microenvironment-Drug Interaction

Area of Science:

• Biomedical Engineering
• Cancer Research
• Drug Delivery Systems

Background:

• Traditional cancer models fail to replicate the complex human tumor microenvironment (TME).
• Existing models lack the necessary complexity for evaluating drug delivery systems (DDS) under pathomimetic conditions.
• Interspecies variance, simplified structures, and static perfusion limit the translatability of current preclinical models.

Purpose of the Study:

• To review recent advancements in vascularized tumor-on-a-chip technologies for assessing DDS performance.
• To highlight the capabilities of these systems in evaluating drug transport kinetics and therapeutic efficacy within a dynamic TME.
• To discuss the potential of these platforms for precision oncology and integrative organ-level modeling.

Main Methods:

• Integration of perfusable vasculature with tumor-stroma dynamics in microfluidic environments.
• Development of dynamic 3D models that mimic the human tumor microenvironment (TME).
• Utilizing microfluidic systems for the evaluation of drug delivery systems (DDS) performance.

Main Results:

• Vascularized tumor-on-a-chip systems enable dynamic 3D evaluation of drug transport and efficacy.
• These advanced models significantly enhance preclinical-to-clinical translatability for cancer therapies.
• Challenges persist in maintaining long-term vascular stability and multi-tissue integration under physiological flow.

Conclusions:

• Vascularized tumor-on-a-chip platforms represent a significant leap in evaluating cancer drug delivery systems.
• These technologies hold transformative potential for precision oncology and next-generation cancer research.
• Further development is needed to address challenges in vascular stability and multi-tissue integration for comprehensive modeling.