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Development of a Novel Hanging Drop Platform for Engineering Controllable 3D Microenvironments.


ABSTRACT: Conventional biomedical research is mostly performed by utilizing a two-dimensional monolayer culture, which fails to recapitulate the three-dimensional (3D) organization and microenvironment of native tissues. To overcome this limitation, several methods are developed to fabricate microtissues with the desired 3D microenvironment. However, they tend to be time-consuming, labor-intensive, or costly, thus hindering the application of 3D microtissues as models in a wide variety of research fields. In the present study, we have developed a pressure-assisted network for droplet accumulation (PANDA) system, an easy-to-use chip that comprises a multichannel fluidic system and a hanging drop cell culture module for uniform 3D microtissue formation. This system can control the desired artificial niches for modulating the fate of the stem cells to form the different sizes of microtissue by adjusting the seeding density. Furthermore, a large number of highly consistent 3D glomerulus-like heterogeneous microtissues that are composed of kidney glomerular podocytes and mesenchymal stem cells have been formed successfully. These data suggest that the developed PANDA system can be employed as a rapid and economical platform to fabricate microtissues with tunable 3D microenvironment and cellular heterogeneity, thus can be employed as tissue-mimicking models in various biomedical research.

SUBMITTER: Cho CY 

PROVIDER: S-EPMC7221142 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Development of a Novel Hanging Drop Platform for Engineering Controllable 3D Microenvironments.

Cho Chin-Yi CY   Chiang Tzu-Hsiang TH   Hsieh Li-Hung LH   Yang Wen-Yu WY   Hsu Hsiang-Hao HH   Yeh Chih-Kuang CK   Huang Chieh-Cheng CC   Huang Jen-Huang JH  

Frontiers in cell and developmental biology 20200507


Conventional biomedical research is mostly performed by utilizing a two-dimensional monolayer culture, which fails to recapitulate the three-dimensional (3D) organization and microenvironment of native tissues. To overcome this limitation, several methods are developed to fabricate microtissues with the desired 3D microenvironment. However, they tend to be time-consuming, labor-intensive, or costly, thus hindering the application of 3D microtissues as models in a wide variety of research fields.  ...[more]

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