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タイトル: | Frequent mechanical stress suppresses proliferation of mesenchymal stem cells from human bone marrow without loss of multipotency |
著者: | Frank, Viktoria Kaufmann, Stefan Wright, Rebecca Horn, Patrick Yoshikawa, Hiroshi Y. Wuchter, Patrick Madsen, Jeppe Lewis, Andrew L. Armes, Steven P. Ho, Anthony D. Tanaka, Motomu https://orcid.org/0000-0003-3663-9554 (unconfirmed) |
著者名の別形: | 田中, 求 |
発行日: | 15-Apr-2016 |
出版者: | Springer Nature |
誌名: | Scientific Reports |
巻: | 6 |
論文番号: | 24264 |
抄録: | Mounting evidence indicated that human mesenchymal stem cells (hMSCs) are responsive not only to biochemical but also to physical cues, such as substrate topography and stiffness. To simulate the dynamic structures of extracellular environments of the marrow in vivo, we designed a novel surrogate substrate for marrow derived hMSCs based on physically cross-linked hydrogels whose elasticity can be adopted dynamically by chemical stimuli. Under frequent mechanical stress, hMSCs grown on our hydrogel substrates maintain the expression of STRO-1 over 20 d, irrespective of the substrate elasticity. On exposure to the corresponding induction media, these cultured hMSCs can undergo adipogenesis and osteogenesis without requiring cell transfer onto other substrates. Moreover, we demonstrated that our surrogate substrate suppresses the proliferation of hMSCs by up to 90% without any loss of multiple lineage potential by changing the substrate elasticity every 2nd days. Such “dynamic in vitro niche” can be used not only for a better understanding of the role of dynamic mechanical stresses on the fate of hMSCs but also for the synchronized differentiation of adult stem cells to a specific lineage. |
著作権等: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
URI: | http://hdl.handle.net/2433/235331 |
DOI(出版社版): | 10.1038/srep24264 |
PubMed ID: | 27080570 |
出現コレクション: | 学術雑誌掲載論文等 |
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