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Topography and Permeability Analyses of Vasculature-on-a-Chip Using Scanning Probe Microscopies.
Nashimoto, Yuji; Abe, Minori; Fujii, Ryota; Taira, Noriko; Ida, Hiroki; Takahashi, Yasufumi; Ino, Kosuke; Ramon-Azcon, Javier; Shiku, Hitoshi.
Afiliação
  • Nashimoto Y; Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, Miyagi, 980-8578, Japan.
  • Abe M; Graduate School of Engineering, Tohoku University, Miyagi, 980-8579, Japan.
  • Fujii R; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
  • Taira N; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
  • Ida H; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
  • Takahashi Y; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
  • Ino K; Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, Miyagi, 980-8578, Japan.
  • Ramon-Azcon J; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
  • Shiku H; WPI-Advanced Institute for Materials Research, Tohoku University, Miyagi, 980-8577, Japan.
Adv Healthc Mater ; 10(21): e2101186, 2021 11.
Article em En | MEDLINE | ID: mdl-34409770
ABSTRACT
Microphysiological systems (MPS) or organs-on-chips (OoC) can emulate the physiological functions of organs in vitro and are effective tools for determining human drug responses in preclinical studies. However, the analysis of MPS has relied heavily on optical tools, resulting in difficulties in real-time and high spatial resolution imaging of the target cell functions. In this study, the role of scanning probe microscopy (SPM) as an analytical tool for MPS is evaluated. An access hole is made in a typical MPS system with stacked microchannels to insert SPM probes into the system. For the first study, a simple vascular model composed of only endothelial cells is prepared for SPM analysis. Changes in permeability and local chemical flux are quantitatively evaluated during the construction of the vascular system. The morphological changes in the endothelial cells after flow stimulation are imaged at the single-cell level for topographical analysis. Finally, the possibility of adapting the permeability and topographical analysis using SPM for the intestinal vascular system is further evaluated. It is believed that this study will pave the way for an in situ permeability assay and structural analysis of MPS using SPM.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Células Endoteliais / Dispositivos Lab-On-A-Chip Limite: Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Células Endoteliais / Dispositivos Lab-On-A-Chip Limite: Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article