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Medicine
新生儿异位大鼠心脏移植模型在内皮间充质转化研究中的应用
新生儿异位大鼠心脏移植模型在内皮间充质转化研究中的应用
JoVE Journal
Medicine
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JoVE Journal Medicine
A Neonatal Heterotopic Rat Heart Transplantation Model for the Study of Endothelial-to-Mesenchymal Transition

新生儿异位大鼠心脏移植模型在内皮间充质转化研究中的应用

Full Text
1,528 Views
08:38 min
July 21, 2023

DOI: 10.3791/65426-v

Gregor Gierlinger1, Lavinia Rech1, Sitaram M. Emani1, Pedro J. del Nido1, Ingeborg Friehs1

1Department of Cardiac Surgery, Boston Children’s Hospital,Harvard Medical School

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Summary

这项工作提出了一种内皮到间充质转化诱导的纤维化的动物模型,如先天性心脏缺陷,如严重主动脉瓣狭窄或左心发育不良综合征,可以进行详细的组织学组织评估、调节信号通路的鉴定和治疗方案的测试。

Transcript

心内膜纤维弹性变性阻碍了左心室生长,并阻碍了先天性危重主动脉瓣狭窄和左心发育不良综合征患者的双心室手术修复。虽然手术切除是目前唯一可用的治疗选择,但 EFE 经常复发。因此,我们旨在研究 EFE 背后的机制,并使用动物模型开发新的治疗策略。

EndMT研究领域的主要发展仅限于具有固有局限性的细胞培养模型,并且由于缺乏体内模型,研究受到阻碍。我们小组先前确定,EFE形成的潜在机制涉及心内膜内皮细胞向成纤维细胞的表型变化,这一过程称为内皮到间充质转化。该动物模型允许对EndMT诱导的心脏纤维化进行更全面的检查,而其他模型则旨在通过基因修饰,高血压或饮食限制来诱导EndMT。

由于 EFE 经常在初次切除后复发,有时甚至具有更浸润的生长模式,因此我们对与潜在心肌的分子相互作用特别感兴趣。

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新生儿异位大鼠心脏移植模型 内皮间充质转化 心内膜弹性纤维增生症(EFE) 左心室发育 先天性严重主动脉瓣狭窄 左心发育不良综合征(HLHS) 手术切除 治疗选择 浸润性生长模式 EFE 的潜在机制 临床前测试 血流障碍 异位心脏移植 新生大鼠供体心脏 受者肾下主动脉 下腔静脉 冠状动脉灌注 心内膜内皮细胞 间充质细胞 (EndMT)

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