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Hydrogels as feeder-free scaffolds for long-term self-renewal of mouse induced pluripotent stem (mips) cells.

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タイトル: Hydrogels as feeder-free scaffolds for long-term self-renewal of mouse induced pluripotent stem (mips) cells.
著者: Yang, Jing Jing 著作を一覧する
Liu, Jian Fang 著作を一覧する
Kurokawa, Takayuki 著作を一覧する
Kitada, Kazuhiro 著作を一覧する
Gong, Jian Ping 著作を一覧する
発行日: 2012年11月20日
出版者: John Wiley & Sons
誌名: Journal of Tissue Engineering and Regenerative Medicine
抄録: Expanding undifferentiated induced pluripotent stem (iPS) cells in vitro is a basic requirement for application of iPS cells in both fundamental research and clinical regeneration. In this study, we intended to establish a simple, low cost and efficient method for the long-term self-renewal of mouse induced pluripotent stem (miPS) cells without using feeder-cells and adhesive proteins. Three scaffolds were selected for the long-term subculture of miPS cells over two months starting from passages 14 to 29: 1) a gelatin coated polystyrene (Gelatin-PS) that is a widely used scaffold for self-renewal of mouse embryonic stem (mES) cells; 2) a neutral hydrogel poly(N,N-dimethylacrylamide) (PDMAAm); and 3) a negatively charged hydrogel poly(2-acrylamido-2-methyl-propane sulfonic acid sodium salt) (PNaAMPS). Each passaged miPS cells on these scaffolds were cryopreserved successfully and the revived cells showed high viability and proliferation. The passaged miPS cells maintained a high undifferentiated state on all three scaffolds and a high level of pluripotency by expressing differentiation markers in vitro and forming teratomas in SCID mice with derivatives of all three germ layers. Compared to Gelatin-PS, the two hydrogels exhibited much better self-renewal performance in terms of high proliferation rate and level of expression of undifferentiated gene markers as well as efficiency in pluripotent teratoma formation. Furthermore, the PNaAMPS hydrogel demonstrated a slightly higher efficiency and simpler operation of cell expansion than the PDMAAm hydrogel. To conclude, PNaAMPS hydrogel is an excellent feeder-free scaffold because of its simplicity, low cost and high efficiency in expanding a large number of miPS cells in vitro. Copyright © 2012 John Wiley & Sons, Ltd.
Rights: This is the pre-peer-reviewed version of the following article: J Tissue Eng Regen Med. 2012 Nov 20, which has been published in final form at
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 龔 剣萍 (Gong Jian Ping)


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