Abstract
IntroductionHigh-efficacy single-cell cloning of human-induced pluripotent cells (IPSCs) remains a major challenge. The development of a culture method that supports single-cell passaging while maintaining reproducibility, homogeneity, scalability, and cell expansion to clinically relevant numbers is necessary for clinical application.MethodsTo address this issue, we combined the use of the rho-associated protein kinase (ROCK) inhibitor Y-27632 and hypoxic conditions in culture to produce a novel, efficient single-cell culture method for human IPSCs and embryonic stem cells.ResultsThrough immunocytochemistry, alkaline phosphatase assays, and flow cytometry, we demonstrated that our method enabled high single-cell proliferation while maintaining self-renewal and pluripotency abilities.DiscussionWe showed the beneficial effect of the interaction between hypoxia and ROCK inhibition in regulating cell proliferation, pluripotency, and single-cell survival of pluripotent cells.
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