Synthesizing Living Tissues with Microfluidics.

Area of Science:

• Biochemistry
• Chemical Engineering
• Biotechnology
• Tissue Engineering

Background:

• Native tissues exhibit complex cellular organization and communication.
• Replicating these structures in vitro remains a significant challenge.
• Microfluidics offers a novel platform for mimicking in vivo tissue functions.

Purpose of the Study:

• To explore the chemical synthesis of artificial tissues using microfluidics.
• To demonstrate how microfluidic cues accelerate tissue formation and mimic biological processes.
• To highlight the potential of microfluidics for both fundamental research and biomedical applications.

Main Methods:

• Utilizing microfluidic platforms as miniature "biofactories".
• Employing on-chip chemical and physical cues (e.g., gradients, confinement, mechanics) as "catalytic cues".
• Applying external stimuli (light, electricity, acoustics, magnetics) to manipulate cell behaviors.
• Implementing "step-by-step" and "one-step" synthesis strategies for tissue construction.

Main Results:

• Microfluidics precisely controls cell adhesion, migration, proliferation, and differentiation.
• Demonstrated "step-by-step synthesis" for multilayered tissues (e.g., blood vessels).
• Achieved "one-step synthesis" for 3D tissue structures (e.g., neural networks).
• Enabled in vitro recreation of physiological/pathophysiological processes (e.g., angiogenesis, tumor metastasis).

Conclusions:

• Microfluidics provides unprecedented precision, accuracy, and speed in artificial tissue synthesis.
• The platform facilitates in-depth investigation of biological mechanisms and disease processes.
• Microfluidic-synthesized tissues offer a promising avenue for tissue engineering and drug screening.