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神经遗传性寡度氧核酸诱导肌肉心脏分化小鼠多能干细胞的多能干细胞

Mina Ishioka¹, Yuma Nihashi², Yoichi Sunagawa³

¹Department of Agriculture, Graduate School of Science and Technology, Shinshu University, 8304 Minami-minowa, Kami-ina, Nagano 399-4598, Japan.

International journal of molecular sciences

|September 28, 2023

概括

一种DNA吸收体,iSN04,通过抑制核素,促进从多能干细胞生成心肌细胞. 这一发现为再生医学提供了一种新的策略,特别是在心力衰竭治疗方面.

科学领域:

干细胞生物学干细胞生物学
再生医学是一种再生医学.
分子生物学分子生物学

背景情况:

核是一种关键蛋白质,参与各种细胞过程,包括增殖和分化.
DNA 体正在成为针对性治疗干预的强大工具.
从多能干细胞生成心肌细胞对于心脏修复至关重要.

研究的目的:

为了研究抗核素DNA吸收剂iSN04对小鼠胚胎干细胞 (ESC) 和诱导多能干细胞 (iPSC) 的作用.
确定iSN04在诱导心肌细胞分化方面的潜力及其潜在机制.
评估iSN04在心力衰竭中潜在的治疗应用中的安全性和有效性.

主要方法:

在不同分化阶段用iSN04对待ESC和iPSC.
对细胞增殖和多能标记物表达的分析.
RNA测序以识别调制的信号通路.
免疫染以评估核素定位和心肌细胞标记物表达 (Nkx2-5,Gata4,Isl1).

主要成果:

iSN04抑制了未分化的ESC/iPSC的增殖,而不会影响多能性标志物.
延迟的iSN04治疗 (从第5天开始) 显著诱导心肌细胞分化,调节心脏标志物的上升.
早期iSN04治疗 (在第5天之前) 完全抑制了心肌生成.
RNA测序表明iSN04调节了Wnt信号通路,促进了心脏祖先的产生.
iSN04抑制了核素转位,将其限制在核细胞中.
iSN04并没有诱导初级心肌细胞的过敏反应.

结论:

通过iSN04抑制核,便于心脏中皮体的终端分化成心肌细胞.
iSN04 干扰了中皮的早期分化进入心脏系的过程.
这项研究首次使用DNA吸收剂从多能干细胞生成心肌细胞.
iSN04显示出作为心力衰竭再生疗法的安全和有效药物的承诺.

关键词:

一个aptamer的应用程序.胚胎干细胞是一种胚胎干细胞.诱导多能干细胞的诱导干细胞.心肌分化的分化.肌遗传性寡度氧核酸 (myoDN) 是一种核的核是一种核.

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