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Open AccessArticle

A Microfluidic Spheroid Culture Device with a Concentration Gradient Generator for High-Throughput Screening of Drug Efficacy

by Wanyoung Lim 1 and Sungsu Park 1,2,*
1
Department of Biomedical Engineering, Sungkyunkwan University, Suwon 16419, Korea
2
School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: R. Michael van Dam
Molecules 2018, 23(12), 3355; https://doi.org/10.3390/molecules23123355
Received: 27 November 2018 / Revised: 17 December 2018 / Accepted: 17 December 2018 / Published: 18 December 2018
(This article belongs to the Special Issue Microfluidic Tools for High-Throughput Screening)
Three-dimensional (3D) cell culture is considered more clinically relevant in mimicking the structural and physiological conditions of tumors in vivo compared to two-dimensional cell cultures. In recent years, high-throughput screening (HTS) in 3D cell arrays has been extensively used for drug discovery because of its usability and applicability. Herein, we developed a microfluidic spheroid culture device (μFSCD) with a concentration gradient generator (CGG) that enabled cells to form spheroids and grow in the presence of cancer drug gradients. The device is composed of concave microwells with several serpentine micro-channels which generate a concentration gradient. Once the colon cancer cells (HCT116) formed a single spheroid (approximately 120 μm in diameter) in each microwell, spheroids were perfused in the presence of the cancer drug gradient irinotecan for three days. The number of spheroids, roundness, and cell viability, were inversely proportional to the drug concentration. These results suggest that the μFSCD with a CGG has the potential to become an HTS platform for screening the efficacy of cancer drugs. View Full-Text
Keywords: spheroids; concentration gradient generator; drug screening; high-throughput spheroids; concentration gradient generator; drug screening; high-throughput
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MDPI and ACS Style

Lim, W.; Park, S. A Microfluidic Spheroid Culture Device with a Concentration Gradient Generator for High-Throughput Screening of Drug Efficacy. Molecules 2018, 23, 3355.

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