Chemically defined and xeno-free culture condition for human extended pluripotent stem cells
Bei Liu, Shi Chen, Yaxing Xu, Yulin Lyu, Jinlin Wang, Yuanyuan Du, Yongcheng Sun, Heming Liu, Haoying Zhou, Weifeng Lai, Anqi Xue, Ming Yin, Cheng Li, Yun Bai, Jun Xu & Hongkui Deng.
Nature Communications, 2021
This study shows the significant benefit of culturing and deriving extended pluripotent stem cells on Biolaminin 521 (LN521) compared to using Matrigel, Geltrex, vitronectin, extracted laminin, collagen, fibronectin, or laminin-511. In addition to enabling xeno-free and chemically defined culture conditions, the study clearly shows that laminin-521 promotes attachment (measured at 1.5 h), survival (24h) and proliferation (72h). Human EPS cells were long-term and genetically stably maintained in vitro, preserving their embryonic and extraembryonic developmental potentials. The study also showed efficient derivation from human fibroblast through reprogramming.

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