Microengineered cancer-on-a-chip platforms to study the metastatic microenvironment

Area of Science:

• Biomedical Engineering
• Cancer Biology
• Microfluidics

Background:

• Metastasis accounts for over 90% of cancer deaths, driven by complex tumor microenvironment (TME) interactions.
• Existing experimental models struggle to replicate the multifaceted stimuli of the metastatic TME.
• Advanced biomaterials, microfluidics, and tissue engineering are essential for creating relevant models.

Purpose of the Study:

• To review integrative microengineered platforms for studying metastatic cancer.
• To highlight their role in investigating TME physicochemical cues, cell interactions, and migration.
• To discuss applications in fundamental research and drug screening.

Main Methods:

• Focus on microengineered systems recapitulating TME complexity.
• Integration of biomaterials, microfluidics, and tissue engineering.
• Development of "on-chip" technologies for cancer cell analysis and propagation.

Main Results:

• Microengineered platforms enable study of stromal cues, heterocellular interactions, and migration stresses.
• These systems allow investigation of physicochemical gradients guiding cell motility.
• Demonstrated utility as in vitro assays for mechanistic studies and drug screening.

Conclusions:

• Microengineered systems offer powerful tools for fundamental cancer metastasis research.
• These platforms provide human-relevant biomimetic microenvironments for drug discovery.
• Future perspectives include advancing these systems for translational cancer research.