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遗传变异影响多能干细胞 DNA 甲基化稳定性,助力解锁细胞治疗新密码
针对印记基因调控状态,研究人员对 P15 代 iPSCs 的基因组 DNA 进行靶向亚硫酸氢盐测序,聚焦于 3 个父系印记位点(Dlk1 - Dio3、H19/Igf2 和 Rasgrf1)和 12 个母系印记位点(Gnas、Grb10 等)的控制区域。无监督聚类分析发现,DNA 甲基化水平在不同位点和品系间差异显著 ...
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