Tissue assembly and organization: developmental mechanisms in microfabricated tissues

Area of Science:

• Biotechnology
• Tissue Engineering
• Developmental Biology

Background:

• In vitro-generated tissues offer potential for mimicking physiological and pathological tissues.
• Current limitations include structural and functional complexity, requiring self-organization and recapitulation of developmental mechanisms.
• Nano- and microfabrication tools and bottom-up strategies are advancing primitive tissue structure fabrication.

Purpose of the Study:

• To explore methods for designing and assembling structures that promote tissue remodeling in vitro.
• To understand how to predict and manipulate in vitro developmental mechanisms.
• To investigate the role of architectural, physical, and molecular cues in tissue morphogenesis.

Main Methods:

• Utilizing nano- and microfabrication techniques.
• Employing bottom-up strategies for tissue structure assembly.
• Integrating architectural, physical, and molecular cues into engineered systems.

Main Results:

• Emerging tools enable the fabrication of primitive tissue structures capable of remodeling over time.
• Evidence suggests intrinsic tissue architectures and microenvironmental cues drive in vitro morphogenesis.
• Systems integrating multiple cues facilitate systematic investigation of tissue development principles.

Conclusions:

• Designing in vitro systems with integrated cues is crucial for understanding and controlling tissue morphogenesis.
• This approach facilitates the investigation of basic principles of tissue development, differentiation, and maintenance.
• It provides a feedback mechanism to reproduce tissue dynamics and engineer more complex in vitro tissues.