由心脏原生细胞和差异化心肌细胞形成的工程心脏组织在差异化匹配的时间点表现出类似的生理特性
Lavanya Aryan1, Jennifer A E Esteves1,2, James Tabor2
1Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, MO, United States of America.
Biofabrication
|October 13, 2025
概括
人类多能干细胞衍生心血管原始体 (iPSC-CVP) 为再生医学提供了一个有前途的替代方案. 这些细胞使功能性工程心脏组织能够改善治疗先天性心脏缺陷的可行性.
科学领域:
- 再生医学是一种再生医学.
- 生物技术是生物技术.
- 心血管研究研究心血管研究
背景情况:
- 先天性心脏病,特别是单心室缺陷,是新生儿死亡率和发病率的主要原因.
- 目前使用人类多能干细胞衍生心肌细胞 (iPSC-CM) 进行工程心肌的再生医学策略,由于生物打印剪切应力和酶治疗,细胞活力面临挑战.
- 需要更强大的细胞来源来生物制造功能性心脏组织.
研究的目的:
- 研究人类多能干细胞衍生的心血管前体 (iPSC-CVP) 作为生物制造工程心肌和脉动导管的优质细胞来源的潜力.
- 为了比较iPSC-CVP与iPSC-CM在组织工程应用中的功能和处理性能.
主要方法:
- 衍生性心血管前体 (iPSC-CVP) 是从人类多能干细胞生成的.
- 使用iPSC-CVP制造的工程心脏组织与使用iPSC-CM制造的组织进行了比较.
- 评估了电生理学特性,酶分离耐受性和机械操纵弹性.
主要成果:
- iPSC-CVP成功形成了功能性工程心脏组织.
- 来自iPSC-CVP的组织表现出与来自iPSC-CM的组织相似的电生理学特性.
- 与iPSC-CM相比,iPSC-CVP对酶解离和机械应激的耐受性更强.
结论:
- 人类多能干细胞衍生心血管原始体 (iPSC-CVP) 是生物制造工程心肌和脉动导管的有利细胞来源.
- 提高iPSC-CVP的稳定性可能会克服与目前的生物制造策略相关的局限性,用于先天性心脏病的再生疗法.
相关概念视频
Structure of Cardiac Muscles
Cardiac muscle, or myocardium, is a specialized type of muscle found exclusively in the heart. Its unique structural and functional characteristics enable the heart to perform its vital role of pumping blood throughout the body continuously and rhythmically. The cardiac muscle cells, or cardiomyocytes, possess an endomysium and perimysium but do not have an epimysium.
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Specialized Characteristics of Cardiac Muscles
The primary role of cardiac muscles is to propel blood throughout the cardiovascular system. The cardiac muscle cells, or cardiomyocytes, exhibit specialized characteristics that allow them to perform this function.
Cardiac muscle cells are smaller than skeletal muscles, averaging 10–20 mm in diameter and 50–100 mm in length. However, they have large energy demands for continuous contraction and relaxation. This energy is almost exclusively derived from aerobic metabolism of energy reserves in...
Cardiac muscle cells are smaller than skeletal muscles, averaging 10–20 mm in diameter and 50–100 mm in length. However, they have large energy demands for continuous contraction and relaxation. This energy is almost exclusively derived from aerobic metabolism of energy reserves in...
Development of the Heart
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...


