Engineering tumor vasculature on an injection-molded plastic array 3D culture (IMPACT) platform

Area of Science:

• Biotechnology
• Microfluidics
• 3D Cell Culture

Background:

• Organ-on-a-chip technology utilizes 3D microphysiological systems for biological studies.
• Conventional polydimethylsiloxane (PDMS) platforms have fabrication and usage limitations.
• There is a need for accessible, standardized, and mass-producible microfluidic platforms.

Purpose of the Study:

• Introduce a novel injection-molded plastic array 3D culture (IMPACT) platform.
• Demonstrate the platform's utility for high-content drug screening and biological investigations.

Main Methods:

• Developed an injection-molded plastic microfluidic system for 3D cellular hydrogel patterning.
• Utilized the IMPACT platform for high-content morphological profiling of tumor cells on vascular formation.
• Screened anti-tumor drugs (5-FU, axitinib, cetuximab) at various dosages on the platform.

Main Results:

• The IMPACT platform allowed simultaneous profiling of nine tumor cell types on vascular formation.
• Distinct, mechanism-dependent responses of tumor and vasculature to drug treatments were observed.
• Confirmed the platform's effectiveness as a high-content drug testing tool.

Conclusions:

• The IMPACT platform provides an accessible and versatile microfluidic system for 3D co-culture.
• It is suitable for high-throughput and high-content assays in biological, clinical, and pharmaceutical research.
• IMPACT represents a next-generation platform for advanced microphysiological studies.