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Updated: Jul 5, 2026
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3D Microtissues for Injectable Regenerative Therapy and High-throughput Drug Screening
Published on: October 4, 2017
Drug testing on 3D in vitro tissues trapped on a microcavity chip
Daniel Kloss1, Michael Fischer, Andrée Rothermel
1Center for Biotechnology and Biomedicine (BBZ), University of Leipzig, Division of Molecular Biological-Biochemical Processing Technology, Deutscher Platz 5, 04103, Leipzig, Germany.
Lab on a Chip
|May 24, 2008
Summary
This study introduces a 3D microcavity array for real-time monitoring of tumor spheroids, offering more realistic anti-cancer drug testing. The novel electrode system analyzes electrical parameters, revealing cell-specific drug responses.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Pharmacology
Background:
- Monolayer cell cultures lack realistic anti-cancer drug response prediction.
- 3D multicellular cultures (spheroids) serve as improved models for microtumors and metastases.
- Non-invasive, real-time monitoring is crucial for analyzing spheroid behavior.
Purpose of the Study:
- To design, fabricate, and test a 3D multifunctional electrode-based microcavity array.
- To enable non-invasive, real-time monitoring of electrical parameters in spheroid cultures.
- To assess the utility of the array for analyzing morphological and structural changes in tissue models.
Main Methods:
- Fabrication of a 3D microcavity array with 15 individual square microcavities, each containing four gold electrodes.
- Utilizing impedance spectroscopy for analyzing spheroid tissue models.
- Conducting non-adherent assays with tumor spheroids to maintain their shape and cellular arrangement.
Main Results:
- Demonstrated cell type-specific differences in impedance spectra.
- Observed varying responses of spheroids to several anti-tumor drugs.
- Successfully maintained spheroid integrity and cellular arrangement during testing.
Conclusions:
- The developed 3D microcavity array is a promising tool for non-invasive, real-time monitoring of spheroid cultures.
- The system can differentiate cell types and their responses to anti-cancer drugs.
- Further development could lead to its application in pharmacological high-throughput studies.
