Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis

Microfluidic devices utilizing spheroids play important roles in in vitro experimental systems to closely simulate morphological and biochemical characteristics of the in vivo tumor microenvironment. For the observation and analysis of the inner structure of spheroids, sectioning is an efficient app...

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Main Authors: Satoru Kuriu, Tetsuya Kadonosono, Shinae Kizaka-Kondoh, Tadashi Ishida
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/11/5/480
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author Satoru Kuriu
Tetsuya Kadonosono
Shinae Kizaka-Kondoh
Tadashi Ishida
author_facet Satoru Kuriu
Tetsuya Kadonosono
Shinae Kizaka-Kondoh
Tadashi Ishida
author_sort Satoru Kuriu
collection DOAJ
description Microfluidic devices utilizing spheroids play important roles in in vitro experimental systems to closely simulate morphological and biochemical characteristics of the in vivo tumor microenvironment. For the observation and analysis of the inner structure of spheroids, sectioning is an efficient approach. However, conventional microfluidic devices are difficult for sectioning, and therefore, spheroids inside the microfluidic channels have not been sliced well. We proposed a microfluidic device created from embedding resin for sectioning. Spheroids were cultured, embedded by resin, and sectioned in the microfluidic device. Slices of the sectioned spheroids yielded clear images at the cellular level. According to morphological and immunohistochemical analyses of the slices of the spheroid, specific protein distribution was observed.
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spelling doaj.art-d6c7886700b54d12be68af1329f301022023-11-19T23:37:35ZengMDPI AGMicromachines2072-666X2020-05-0111548010.3390/mi11050480Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical AnalysisSatoru Kuriu0Tetsuya Kadonosono1Shinae Kizaka-Kondoh2Tadashi Ishida3Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Kanagawa 226-8503, JapanDepartment of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, Kanagawa 226-8503, JapanDepartment of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, Kanagawa 226-8503, JapanDepartment of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Kanagawa 226-8503, JapanMicrofluidic devices utilizing spheroids play important roles in in vitro experimental systems to closely simulate morphological and biochemical characteristics of the in vivo tumor microenvironment. For the observation and analysis of the inner structure of spheroids, sectioning is an efficient approach. However, conventional microfluidic devices are difficult for sectioning, and therefore, spheroids inside the microfluidic channels have not been sliced well. We proposed a microfluidic device created from embedding resin for sectioning. Spheroids were cultured, embedded by resin, and sectioned in the microfluidic device. Slices of the sectioned spheroids yielded clear images at the cellular level. According to morphological and immunohistochemical analyses of the slices of the spheroid, specific protein distribution was observed.https://www.mdpi.com/2072-666X/11/5/480microfluidic deviceembedding resinspheroidsectioningimmunohistochemistry
spellingShingle Satoru Kuriu
Tetsuya Kadonosono
Shinae Kizaka-Kondoh
Tadashi Ishida
Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
Micromachines
microfluidic device
embedding resin
spheroid
sectioning
immunohistochemistry
title Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
title_full Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
title_fullStr Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
title_full_unstemmed Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
title_short Slicing Spheroids in Microfluidic Devices for Morphological and Immunohistochemical Analysis
title_sort slicing spheroids in microfluidic devices for morphological and immunohistochemical analysis
topic microfluidic device
embedding resin
spheroid
sectioning
immunohistochemistry
url https://www.mdpi.com/2072-666X/11/5/480
work_keys_str_mv AT satorukuriu slicingspheroidsinmicrofluidicdevicesformorphologicalandimmunohistochemicalanalysis
AT tetsuyakadonosono slicingspheroidsinmicrofluidicdevicesformorphologicalandimmunohistochemicalanalysis
AT shinaekizakakondoh slicingspheroidsinmicrofluidicdevicesformorphologicalandimmunohistochemicalanalysis
AT tadashiishida slicingspheroidsinmicrofluidicdevicesformorphologicalandimmunohistochemicalanalysis