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Updated: Jan 26, 2026
Microfluidic Device for Recreating a Tumor Microenvironment in Vitro
Published on: November 20, 2011
Enabling cell recovery from 3D cell culture microfluidic devices for tumour microenvironment biomarker profiling
María Virumbrales-Muñoz1, Jose M Ayuso1,2, Alodia Lacueva3,4,5
1Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States.
Abstract:
The tumour microenvironment (TME) has recently drawn much attention due to its profound impact on tumour development, drug resistance and patient outcome. There is an increasing interest in new therapies that target the TME. Nonetheless, most established in vitro models fail to include essential cues of the TME. Microfluidics can be used to reproduce the TME in vitro and hence provide valuable insight on tumour evolution and drug sensitivity. However, microfluidics remains far from well-established mainstream molecular and cell biology methods. Therefore, we have developed a quick and straightforward collagenase-based enzymatic method to recover cells embedded in a 3D hydrogel in a microfluidic device with no impact on cell viability. We demonstrate the validity of this method on two different cell lines in a TME microfluidic model. Cells were successfully retrieved with high viability, and we characterised the different cell death mechanisms via AMNIS image cytometry in our model.
Insights
Researchers developed a simple enzymatic method to retrieve viable cells from 3D hydrogel microfluidic models of the tumor microenvironment (TME). This technique aids in studying tumor evolution and drug resistance.
Area of Science:
- Oncology
- Biotechnology
- Cell Biology
Background:
- The tumor microenvironment (TME) significantly influences tumor progression, drug resistance, and patient outcomes.
- Existing in vitro models often lack crucial TME cues, limiting their translational relevance.
- Microfluidic devices offer a promising platform for in vitro TME modeling but are not yet standard methods.
Purpose of the Study:
- To develop a rapid and effective method for cell recovery from 3D hydrogel microfluidic devices.
- To preserve cell viability during the recovery process for downstream analysis.
- To validate the method in a TME microfluidic model.
Main Methods:
- Development of a collagenase-based enzymatic cell retrieval technique.
- Application of the method to cells within a 3D hydrogel in a microfluidic device.
- Assessment of cell viability post-retrieval.
- Characterization of cell death mechanisms using AMNIS image cytometry.
Main Results:
- Successful retrieval of cells embedded in 3D hydrogels within microfluidic devices.
- High cell viability was maintained after the enzymatic recovery process.
- The method was validated using two distinct cell lines in a TME model.
- Cell death mechanisms were successfully characterized in the model.
Conclusions:
- The developed enzymatic method provides a straightforward and efficient way to recover viable cells from microfluidic TME models.
- This technique enhances the utility of microfluidic devices for studying tumor biology and drug responses.
- The method facilitates deeper investigation into cell death mechanisms within the TME.
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