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Manipulating Living Cells to Construct Stable 3D Cellular Assembly Without Artificial Scaffold
Published on: October 26, 2018
Engineering 3D cell instructive microenvironments by rational assembly of artificial extracellular matrices and cell
Ana Sala1, Patrick Hänseler, Adrian Ranga
1Department of Cranio Maxillofacial Surgery, Oral Biotechnology & Bioengineering, University Hospital Zurich and Center of Dental Medicine, University of Zurich Frauenklinikstrasse 24, Nord2 B-843, 8091 Zurich, Switzerland.
Researchers developed a new method using artificial extracellular matrices and patterning to create instructive microenvironments. This approach successfully controlled cell migration and generated artificial vascularized bone tissue, advancing tissue engineering models.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Developmental Biology
Background:
- Engineered microenvironments are crucial for studying biological processes, bridging the gap between 2D cultures and animal models.
- Current platforms struggle to replicate the complex composition, cues, heterogeneity, and geometry of natural instructive microenvironments.
- Spatially-defined microenvironments are essential for guiding artificial tissue formation via morphogenetic processes.
Purpose of the Study:
- To develop a flexible strategy for creating rationally-designed instructive microenvironments.
- To mimic natural microenvironments by controlling cell and matrix composition, biological cues, and geometry.
- To demonstrate control over cellular behavior, including migration and tissue formation.
Main Methods:
- Combined artificial extracellular matrices with patterning techniques and a layer-by-layer approach.
- Rationally arranged cells with defined biochemical and biophysical extracellular cues.
- Utilized microenvironment engineering to guide tissue development.
Main Results:
- Successfully recapitulated instructive microenvironments with controlled parameters.
- Demonstrated precise control over cell migration.
- Generated an artificial vascularized bone tissue-like construct.
Conclusions:
- The developed strategy offers a novel method for creating biomimetic microenvironments.
- This approach enables the controlled formation of artificial tissues with specific architectures.
- Advances in tissue engineering models for studying developmental and regenerative processes.
