Adjustable and Versatile 3D Tumor Spheroid Culture Platform with Interfacial Elastomeric Wells

被引:24
作者
An, Hyun Ji [2 ]
Kim, Hyo Sil [2 ]
Kwon, Jung A. [2 ]
Song, Jihwan [1 ]
Choi, Inhee [2 ]
机构
[1] Hanbat Natl Univ, Dept Mech Engn, Daejeon 34158, South Korea
[2] Univ Seoul, Dept Life Sci, Seoul 02504, South Korea
基金
新加坡国家研究基金会;
关键词
spheroid formation; 3D cell culture platform; elastomeric well; drug screening; polydimethylsiloxane; CELL SPHEROIDS; IRRADIATION; GENERATION; MODEL;
D O I
10.1021/acsami.9b21471
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Three-dimensional (3D) cell culture platforms have recently received a great deal of attention, as these systems are able to recapitulate the in vivo microenvironment of tissues or tumors. Herein, we describe adjustable and versatile elastomeric well structures for spheroid formation and their use for in situ analyses as a tunable 3D cell culture platform. Elastomeric spherical wells are fabricated using a one-step interfacial reaction between aqueous droplets on immiscible liquid polydimethylsiloxane (PDMS) without any template or expensive equipment. Because of their differing surface tensions, spherical wells are spontaneously formed on liquid PDMS with various sizes and curvatures that are easily controlled. Using arrays of these optimized wells, single tumor spheroids within each well were successfully formed at high efficiency (up to 97%) by coculturing tumor cells and fibroblasts to reflect the complex microenvironment of cancer tissue. Moreover, the tumor spheroids formed within the interfacial wells were directly applied for observing drug responses and monitoring reactive oxygen species (ROS) to investigate tumor cell responses to drugs or their 3D microenvironment. We believe that our proposed platform provides a significant contribution to the multimodal analyses of anticancer therapeutics and the tumor microenvironment.
引用
收藏
页码:6924 / 6932
页数:9
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