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Facile One Step Formation and Screening of Tumor Spheroids Using Droplet‐Microarray Platform

Facile One Step Formation and Screening of Tumor Spheroids Using Droplet‐Microarray Platform Tumor spheroids or microtumors are important 3D in vitro tumor models that closely resemble a tumor's in vivo “microenvironment” compared to 2D cell culture. Microtumors are widely applied in the fields of fundamental cancer research, drug discovery, and precision medicine. In precision medicine tumor spheroids derived from patient tumor cells represent a promising system for drug sensitivity and resistance testing. Established and commonly used platforms for routine screenings of cell spheroids, based on microtiter plates of 96‐ and 384‐well formats, require relatively large numbers of cells and compounds, and often lead to the formation of multiple spheroids per well. In this study, an application of the Droplet Microarray platform, based on hydrophilic–superhydrophobic patterning, in combination with the method of hanging droplet, is demonstrated for the formation of highly miniaturized single‐spheroid‐microarrays. Formation of spheroids from several commonly used cancer cell lines in 100 nL droplets starting with as few as 150 cells per spheroid within 24–48 h is demonstrated. Established methodology carries a potential to be adopted for routine workflows of high‐throughput compound screening in 3D cancer spheroids or microtumors, which is crucial for the fields of fundamental cancer research, drug discovery, and precision medicine. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Small Wiley

Facile One Step Formation and Screening of Tumor Spheroids Using Droplet‐Microarray Platform

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References (49)

Publisher
Wiley
Copyright
© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1613-6810
eISSN
1613-6829
DOI
10.1002/smll.201901299
Publisher site
See Article on Publisher Site

Abstract

Tumor spheroids or microtumors are important 3D in vitro tumor models that closely resemble a tumor's in vivo “microenvironment” compared to 2D cell culture. Microtumors are widely applied in the fields of fundamental cancer research, drug discovery, and precision medicine. In precision medicine tumor spheroids derived from patient tumor cells represent a promising system for drug sensitivity and resistance testing. Established and commonly used platforms for routine screenings of cell spheroids, based on microtiter plates of 96‐ and 384‐well formats, require relatively large numbers of cells and compounds, and often lead to the formation of multiple spheroids per well. In this study, an application of the Droplet Microarray platform, based on hydrophilic–superhydrophobic patterning, in combination with the method of hanging droplet, is demonstrated for the formation of highly miniaturized single‐spheroid‐microarrays. Formation of spheroids from several commonly used cancer cell lines in 100 nL droplets starting with as few as 150 cells per spheroid within 24–48 h is demonstrated. Established methodology carries a potential to be adopted for routine workflows of high‐throughput compound screening in 3D cancer spheroids or microtumors, which is crucial for the fields of fundamental cancer research, drug discovery, and precision medicine.

Journal

SmallWiley

Published: Jun 1, 2019

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