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Artificial niche microarrays for identifying extrinsic cell-fate determinants
Samy Gobaa1, Raphael V Gayet2, Matthias P Lutolf3
1Group of Biomaterials and Microfluidics, Center for Innovation and Technological Research, Institut Pasteur, Paris, France; Laboratory of Stem Cell Bioengineering (LSCB), Institute of Bioengineering (IBI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Methods in Cell Biology
|November 27, 2018
Summary
Researchers developed artificial niche microarrays to mimic the cellular microenvironment, enabling high-throughput single-cell assays. This platform captures complex cell fate decisions by presenting diverse signaling cues and substrate stiffness to cells.
Area of Science:
- Cell Biology
- Biotechnology
- Bioengineering
Background:
- The cellular microenvironment, or niche, critically influences stem cell fate decisions.
- Replicating the complex, multi-input/output nature of the niche in vitro is challenging.
- Understanding cell fate requires studying cells within physiologically relevant microenvironments.
Purpose of the Study:
- To develop and validate a microfabricated platform for high-throughput single-cell assays.
- To create artificial niche microarrays that mimic in vivo cellular microenvironments.
- To enable the study of cell fate determination under multifactorial conditions.
Main Methods:
- Fabrication of artificial niche microarrays with soft hydrogel substrates of variable stiffness.
- Culturing cells on microarrays exposed to differential signaling cues.
- Performing high-throughput, image-based assays for cell phenotyping and data extraction.
Main Results:
- Demonstrated a platform capable of presenting over 2000 distinct microenvironments.
- Enabled quantification of cell behavior across multivariate conditions.
- Established a pipeline for microarray production, cell culture, and data analysis.
Conclusions:
- Artificial niche microarrays provide a powerful tool for studying cell fate in vitro.
- The platform facilitates high-throughput analysis of cell responses to microenvironmental cues.
- This technology advances the ability to recapitulate complex cellular systems for research.
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