Abstract
The establishment of a miniaturized platform capable of microscale control for sequential, coordinated, and throughput biomimetic tumor manipulation and analysis offer a high degree of biological and clinical relevance to cancer therapy and pharmaceutical research. In this study, we developed a microfluidic system with well-established microwell arrays and simple double-layer composition that allows massive fabrication of biomimetic multi-size 3D tumors and their simultaneous manipulation and orthogonal analysis. Serial manipulations including cell localization, array-like self-assembly/cultivation, and dynamic analysis of different types of 3D tumors, were accomplished in the microfluidic device. We demonstrated that the microfluidic platform is stable and throughput cell trapping and tumor generation with quantity uniform. Furthermore, on-chip monitoring and throughput analysis of tumor phenotypes and responses to culture and different chemotherapies were also achieved in the device. The microfluidic advancement offers a new methodological approach for the development of high-performance and multifunctional 3D tumor systems and for tissue-mimicking cancer research and therapy evaluation. This microfluidic platform, which has the capability of multiple control in time and space, holds great potential for applications in the fields of tumor biology, tissue engineering, and clinical medicine.
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