我们如何构建肢体?
Rio Tsutsumi1,2, Mototsugu Eiraku1,2
1Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan.
Frontiers in cell and developmental biology
|June 7, 2023
概括
科学家们正在探索如何通过了解发育生物学来在体外建立肢体. 这项研究旨在从干细胞中制造肢体样组织,用于再生医学和药物测试.
科学领域:
- 发展生物学 发展生物学
- 再生医学是一种再生医学.
- 干细胞工程 干细胞工程
背景情况:
- 肢体发育是一个复杂的过程,涉及自我组织和外部组织相互作用.
- 目前的干细胞技术可以创造肢体样组织,但不能完全重复形态发生.
- 了解四肢发育机制是体外重建的关键.
研究的目的:
- 概述一种在体外构造完整肢体的方法.
- 识别肢体发育的自我组织与外部操纵的方面.
- 为先进的再生疗法利用发展洞察力.
主要方法:
- 肢体发育机制的分析,包括模块化和组织依赖性.
- 审查干细胞工程产生多细胞结构.
- 在体外培养条件的设定,包括形态原梯度和外部组织.
主要成果:
- 肢体发育表现出模块化,轴在早期建立并维护.
- 外部组织如肌肉,血管和神经对于四肢形成至关重要.
- 多能干细胞可以产生肢体样组织,形成进一步发展的基础.
结论:
- 在体外四肢形态发生需要了解内在的发育程序和外在组织贡献.
- 未来的研究应该集中在重建形态变异梯度和在培养中纳入必要的外部组织上.
- 成功的体外四肢发育模型可以彻底改变先天性四肢缺陷的药物查,并使四肢再生疗法成为可能.
更多相关视频
10:35Fabrication of the Composite Regenerative Peripheral Nerve Interface C-RPNI in the Adult Rat
Published on: February 25, 2020
8.3K
09:14Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction
Published on: September 28, 2019
11.5K
相关概念视频
01:09Changes in the Appendicular Skeleton with Age
2.1K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.1K
01:07Development of the Limb Synovial Joints
1.4K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.4K