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基于信号通路的培养条件提高了犬类诱导多能干细胞的分化潜力

Toshiya Nishimura¹, Kazuto Kimura², Kyomi J Igarashi³

¹Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), The University of Osaka, Suita, Osaka 565-0871, Japan.

Stem cell reports

|September 19, 2025

概括

研究人员利用特定的信号通路优化了犬类诱导多能干细胞 (ciPSC) 培养. 这一突破增强了ciPSC的维护和差异化,为犬病模型和生物医学研究铺平了道路.

科学领域:

干细胞生物学干细胞生物学
比较医学是一种比较医学.
遗传学遗传学是一个

背景情况:

自然发生的犬病可以作为人类疾病的宝贵翻译模型.
狗诱导多能干细胞 (ciPSC) 技术还不发达,缺乏优化的培养基和分化协议.
人类诱导多能干细胞 (iPSC) 研究已取得重大进展,突出了ciPSC技术的潜力.

研究的目的:

为犬类诱导多能干细胞 (ciPSCs) 建立强大的培养条件.
确定维护ciPSC多能性和稳定的关键信号通路.
为ciPSCs开发优化的分化协议,特别是针对心肌细胞.

主要方法:

建立了NANOG-报告器ciPSC线路用于监测多能性.
研究了纤维细胞生长因子 (FGF),活性蛋白/转化生长因子 (TGF) -β和WNT信号通路的作用.
通过操纵关键信号通路,优化了ciPSC培养基.
评估了ciPSC基因表达模式和差异化潜力.

主要成果:

确定了FGF,活性蛋白/TGF-β和WNT信号对于强大的ciPSC维护至关重要.
证明操纵这些通路可以稳定ciPSC在不同细胞系和基底介质中的培养.
在优化介质中培养的ciPSC中观察到同质化的全球基因表达模式.
成功地将ciPSCs分化为具有均质收缩和sarcomere对齐的心肌细胞.

结论:

开发了一种针对犬类诱导多能干细胞 (ciPSCs) 的强大的培养条件.
优化的信号通路 (FGF,活性蛋白/TGF-β,WNT) 对于ciPSC的维护和分化至关重要.
这一进步促进了ciPSCs用于生物医学研究和模拟犬类和人类疾病的使用.

关键词:

动物动物动物动物动物动物狗类犬类动物狗类犬类这是心肌细胞 (cardiomyocyte).基因编辑基因编辑诱导多能干细胞的诱导干细胞.原始化的多能干细胞干细胞.线路记者线路记者

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