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Updated: Jun 17, 2025
Generation of 3D Tumor Spheroids for Drug Evaluation Studies
Published on: February 24, 2023
A Microfluidic 3D-Tumor-Spheroid Model for the Evaluation of Targeted Therapies from Angiogenesis-Related Cytokines
Mengqi Liu1, Yihe Wang1, Chao Wang1
1Institute of Marine Science and Technology, Shandong University, Tsingdao, 266237, China.
Abstract:
Angiogenesis is a key player in drug resistance to targeted therapies for breast cancer. The average expression of angiogenesis-related cytokines is widely associated with the treatments of target therapies for a population of cells or spheroids, overlooking the distinct responses for individuals. In this work, a highly integrated microfluidic platform is developed for the generation of monodisperse multicellular tumor spheroids (MTSs), drug treatments, and the measurement of cytokines for individual MTSs in a single chip. The platform allows the correlation evaluation between cytokine secretion and drug treatment at the level of individual spheroids. For validation, quantities of six representative proangiogenic cytokines are tested against treatments with four model drugs at varying times and concentrations. By applying a linear regression model, significant correlations are established between cytokine secretion and the treated drug concentration for individual spheroids. The proposed platform provides a high-throughput method for the investigation of the molecular mechanism of the cytokine response to targeted therapies and paves the way for future drug screening using predictive regression models at the single-spheroid level.
Insights
This study introduces a microfluidic platform to analyze individual multicellular tumor spheroids (MTSs). It links cytokine secretion to targeted therapy responses in breast cancer, enabling personalized drug screening.
Area of Science:
- Biomedical Engineering
- Cancer Research
- Microfluidics
Background:
- Angiogenesis is crucial in breast cancer drug resistance.
- Current methods average responses, missing individual spheroid variations.
- Understanding individual cytokine responses is key to targeted therapy efficacy.
Purpose of the Study:
- To develop an integrated microfluidic platform for analyzing individual multicellular tumor spheroids (MTSs).
- To correlate cytokine secretion with drug treatment responses at the single-spheroid level.
- To investigate the molecular mechanisms of cytokine response in targeted breast cancer therapies.
Main Methods:
- Development of a microfluidic chip for MTS generation, drug treatment, and cytokine measurement.
- Testing six proangiogenic cytokines against four model drugs on individual MTSs.
- Application of linear regression models to analyze correlations.
Main Results:
- The platform successfully generated monodisperse MTSs and enabled single-spheroid analysis.
- Significant correlations were found between cytokine secretion and drug concentration for individual spheroids.
- High-throughput analysis of molecular mechanisms and cytokine response was achieved.
Conclusions:
- The microfluidic platform facilitates high-throughput investigation of targeted therapy mechanisms.
- It enables correlation of individual cytokine secretion with drug response.
- This paves the way for predictive drug screening models at the single-spheroid level.
