Title |
Xeno-free culture of human pluripotent stem cells on oligopeptide-grafted hydrogels with various molecular designs
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Published in |
Scientific Reports, March 2017
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DOI | 10.1038/srep45146 |
Pubmed ID | |
Authors |
Yen-Ming Chen, Li-Hua Chen, Meng-Pei Li, Hsing-Fen Li, Akon Higuchi, S. Suresh Kumar, Qing-Dong Ling, Abdullah A. Alarfaj, Murugan A. Munusamy, Yung Chang, Giovanni Benelli, Kadarkarai Murugan, Akihiro Umezawa |
Abstract |
Establishing cultures of human embryonic (ES) and induced pluripotent (iPS) stem cells in xeno-free conditions is essential for producing clinical-grade cells. Development of cell culture biomaterials for human ES and iPS cells is critical for this purpose. We designed several structures of oligopeptide-grafted poly (vinyl alcohol-co-itaconic acid) hydrogels with optimal elasticity, and prepared them in formations of single chain, single chain with joint segment, dual chain with joint segment, and branched-type chain. Oligopeptide sequences were selected from integrin- and glycosaminoglycan-binding domains of the extracellular matrix. The hydrogels grafted with vitronectin-derived oligopeptides having a joint segment or a dual chain, which has a storage modulus of 25 kPa, supported the long-term culture of human ES and iPS cells for over 10 passages. The dual chain and/or joint segment with cell adhesion molecules on the hydrogels facilitated the proliferation and pluripotency of human ES and iPS cells. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 50 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 15 | 30% |
Student > Ph. D. Student | 11 | 22% |
Student > Master | 6 | 12% |
Student > Bachelor | 3 | 6% |
Other | 2 | 4% |
Other | 3 | 6% |
Unknown | 10 | 20% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 9 | 18% |
Agricultural and Biological Sciences | 9 | 18% |
Medicine and Dentistry | 3 | 6% |
Engineering | 3 | 6% |
Materials Science | 3 | 6% |
Other | 11 | 22% |
Unknown | 12 | 24% |