bFGF and Activin A function to promote survival and proliferation of single iPS cells in conditioned half-exchange mTeSR1 medium

Human Cell
Xiaoling GuoJiansu Chen

Abstract

Human induced pluripotent stem (iPS) cells can be well maintained by clonal growth. The pluripotent growth of single iPS cells is limited by low survival. To facilitate robust single iPS cells cultured in vitro, half-exchange mTeSR1 medium (HM), whole-exchange medium (WM) and iPS cell-derived conditioned medium (iPS-CM) culture were used. The effects of bFGF and Activin A on the growth of single iPS cells were explored. The dissociation and propagation of single iPS cells also included Accutase enzymatic isolation, Rho-associated protein kinase (ROCK) inhibitor Y27632 protection and high-density single-cell seeding (1 × 10(6) cells/well). CCK-8 assays demonstrated that the viability of clonal iPS cells in mTeSR1 medium and single iPS cells in HM, iPS-CM or WM supplemented with 100 ng/ml bFGF and 10 ng/ml Activin A was significantly higher than that in WM. Annexin v and propidium iodide (PI) assay, Calcein AM and EthD-III double staining also confirmed the similar results. ELISA assays showed that the levels of bFGF and Activin A of single iPS cells in HM and iPS-CM were higher than single iPS cells in WM. Meanwhile, Reverse Transcription-Polymerase Chain Reaction (RT-PCR), quantitative Polymerase Chain Reaction (qPCR), Western ...Continue Reading

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Citations

Jan 23, 2016·Journal of Cellular and Molecular Medicine·Xiaoling GuoJiansu Chen
Sep 24, 2018·Cell and Tissue Research·Xiaoling GuoRenshan Ge
Jan 28, 2021·Signal Transduction and Targeted Therapy·Rui GongBenzhi Cai

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