Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly

To artificially construct a three-dimensional cell assembly, we investigated the availability of long-duration microdroplets that emerged near a critical point in an aqueous two-phase system (ATPS) with the hydrophilic binary polymers, polyethylene glycol (PEG), and dextran (DEX), as host containers...

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Main Authors: Hiroki Sakuta, Tadashi Fujimoto, Yusuke Yamana, Yusuke Hoda, Kanta Tsumoto, Kenichi Yoshikawa
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-02-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2019.00044/full
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author Hiroki Sakuta
Tadashi Fujimoto
Yusuke Yamana
Yusuke Hoda
Kanta Tsumoto
Kenichi Yoshikawa
author_facet Hiroki Sakuta
Tadashi Fujimoto
Yusuke Yamana
Yusuke Hoda
Kanta Tsumoto
Kenichi Yoshikawa
author_sort Hiroki Sakuta
collection DOAJ
description To artificially construct a three-dimensional cell assembly, we investigated the availability of long-duration microdroplets that emerged near a critical point in an aqueous two-phase system (ATPS) with the hydrophilic binary polymers, polyethylene glycol (PEG), and dextran (DEX), as host containers. We found that erythrocytes (horse red blood cells; RBCs) and NAMRU mouse mammary gland epithelial cells (NMuMG cells) were completely and spontaneously entrapped inside DEX-rich microdroplets. RBCs and NMuMG cells were located in the interior and at the periphery of the droplets at PEG/DEX = 5%:5%. In contrast, the cells exhibited opposite localizations at PEG/DEX = 10%:5%, where, interestingly, NMuMG cells apparently assembled to achieve cell adhesion. We simply interpreted such specific localizations by considering the alternative responses of these cells to the properties of the PEG/DEX interfaces with different gradients in polymer concentrations.
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spelling doaj.art-ddc95096db9c4a1b87ed14cc6512c06a2022-12-22T02:46:05ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-02-01710.3389/fchem.2019.00044418806Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular AssemblyHiroki Sakuta0Tadashi Fujimoto1Yusuke Yamana2Yusuke Hoda3Kanta Tsumoto4Kenichi Yoshikawa5Graduate School of Life and Medical Sciences, Doshisha University, Kyoto, JapanGraduate School of Life and Medical Sciences, Doshisha University, Kyoto, JapanGraduate School of Life and Medical Sciences, Doshisha University, Kyoto, JapanGraduate School of Life and Medical Sciences, Doshisha University, Kyoto, JapanDivision of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, JapanGraduate School of Life and Medical Sciences, Doshisha University, Kyoto, JapanTo artificially construct a three-dimensional cell assembly, we investigated the availability of long-duration microdroplets that emerged near a critical point in an aqueous two-phase system (ATPS) with the hydrophilic binary polymers, polyethylene glycol (PEG), and dextran (DEX), as host containers. We found that erythrocytes (horse red blood cells; RBCs) and NAMRU mouse mammary gland epithelial cells (NMuMG cells) were completely and spontaneously entrapped inside DEX-rich microdroplets. RBCs and NMuMG cells were located in the interior and at the periphery of the droplets at PEG/DEX = 5%:5%. In contrast, the cells exhibited opposite localizations at PEG/DEX = 10%:5%, where, interestingly, NMuMG cells apparently assembled to achieve cell adhesion. We simply interpreted such specific localizations by considering the alternative responses of these cells to the properties of the PEG/DEX interfaces with different gradients in polymer concentrations.https://www.frontiersin.org/article/10.3389/fchem.2019.00044/fullaqueous two-phase systemmicrodropletphase separationcell assemblyred blood cellepithelial cell
spellingShingle Hiroki Sakuta
Tadashi Fujimoto
Yusuke Yamana
Yusuke Hoda
Kanta Tsumoto
Kenichi Yoshikawa
Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
Frontiers in Chemistry
aqueous two-phase system
microdroplet
phase separation
cell assembly
red blood cell
epithelial cell
title Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
title_full Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
title_fullStr Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
title_full_unstemmed Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
title_short Aqueous/Aqueous Micro Phase Separation: Construction of an Artificial Model of Cellular Assembly
title_sort aqueous aqueous micro phase separation construction of an artificial model of cellular assembly
topic aqueous two-phase system
microdroplet
phase separation
cell assembly
red blood cell
epithelial cell
url https://www.frontiersin.org/article/10.3389/fchem.2019.00044/full
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