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Microfluidic Device for Recreating a Tumor Microenvironment in Vitro
Published on: November 20, 2011
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Multidimensional controllable fabrication of tumor spheroids based on a microfluidic device
Ying Hou1, Yajing Zheng1, Xiaonan Zheng1
1Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China. jmlin@mail.tsinghua.edu.cn.
Lab on a Chip
|May 16, 2023
Summary
This study introduces a novel method for creating uniform multicellular tumor spheroids (MCTSs) using microfluidics and cell engineering. This technique enables customized cancer models for improved drug screening and research.
Area of Science:
- Biotechnology
- Cancer Research
- Microfluidics
Background:
- Multicellular tumor spheroids (MCTSs) are vital in vitro models for solid tumors.
- Existing methods for MCTS fabrication often lack precise control over size and composition.
- Physiological relevance of MCTSs necessitates robust and reproducible in vitro models.
Purpose of the Study:
- To develop a microfluidic method for fabricating uniform multicellular tumor spheroids (MCTSs).
- To enable customization of MCTS composition and size for cancer research.
- To provide a robust platform for drug screening and mechanistic studies.
Main Methods:
- Cell membrane engineering combined with droplet microfluidics for rapid cell aggregation.
- Biotin-streptavidin interactions for controlled artificial cell aggregation.
- Alginate microcapsules for precise spheroid size regulation (120-180 μm).
Main Results:
- Fabrication of uniform-sized MCTSs in seconds using microfluidic control.
- Demonstrated applicability across multiple cancer cell lines (HCT116, HepG2, A549).
- Production of composite colon cancer spheroids with controlled cell ratios and distribution.
- Assessment of differential vascular endothelial growth factor (VEGF) release and 5-fluorouracil (5-FU) resistance in monotypic and cocultured models.
Conclusions:
- The developed method offers a robust and efficient approach for producing consistent, customized MCTSs.
- This platform enhances the utility of MCTSs in cancer research and drug development.
- The ability to create complex spheroid models facilitates the study of tumor microenvironment interactions and drug responses.
