"All-in-One" Gel System for Whole Procedure of Stem-Cell Amplification and Tissue Engineering.

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Qiulin HeHongwei Ouyang

Abstract

Microsphere (MS)-based systems provides great advantages for cell expansion and transplantation due to their high surface-to-volume ratio and biomimetic environment. However, a MS-based system that includes cell attachment, proliferation, passage, harvest, cryopreservation, and tissue engineering together has not been realized yet. An "all-in-one" gel MS-based system is established for human adipose-derived mesenchymal stem cells (hADSCs), realizing real 3D culture with enhanced expansion efficiency and simplified serial cell culture operations, and construction of macrotissues with uniform cell distribution and specific function. A 3D digital light-processing technology is developed to fabricate gel MSs in an effective way. The printed MSs present a suitable environment with rough surface architecture and the mechanical properties of soft tissues, leading to high cell viability, attachment, proliferation, activity, and differentiation potential. Further, convenient standard operation procedures, including cell passage, detachment, and cryopreservation, are established for cell culture on the gel MSs. Finally, hADSCs-loaded gel MSs form macrotissues through a "bottom-up" approach, which demonstrates the potential applications f...Continue Reading

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Citations

Mar 24, 2021·Stem Cell Research & Therapy·Jiayu ZhangWeihua Guo
Mar 16, 2021·Tissue Engineering. Part B, Reviews·Jian ZhangYu Wang

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