在有机体模型中的工程共同出现
Ivana Vasic1,2, Todd C McDevitt1,3,4
1Gladstone Institutes, San Francisco, CA, United States of America.
Progress in biomedical engineering (Bristol, England)
|December 10, 2025
概括
多能干细胞有机体为开发和疾病研究提供了强大的体外模型. 工程合作的出现解决了干细胞分化的变异性,以提高有机体模型的一致性和控制.
科学领域:
- 干细胞生物学 干细胞生物学
- 发育生物学是发展生物学.
- 再生医学是一种再生医学.
背景情况:
- 多能干细胞衍生有机体是研究发育和疾病的有价值的体外模型.
- 它们的自我更新和自我组织能力使得它们能够创建复杂的多细胞结构.
- 临床翻译受到随机差异化的阻碍,导致细胞成熟度,组织功能和可再生性的不一致.
研究的目的:
- 探索新的方法来提高有机体模型的一致性和控制.
- 为了应对在有机体发育过程中随机干细胞分化所带来的挑战.
- 为了利用发育生物学原理来设计改进的有机体系统.
主要方法:
- 利用发育生物学方面的进步来理解模式形成和对称性破坏.
- 在有机体模型中设计合作性出现 (共同出现) 策略.
- 研究调节三维干细胞培养中的自我组织机制.
主要成果:
- 基于胚胎发育机制开发了新的方法.
- 这些方法旨在在有机体模型中设计合作的出现.
- 目标是克服随机差异化的局限性,改善有机体特征.
结论:
- 工程合作社的出现提供了一个有前途的战略,以增强器官模型.
- 这种方法解决了干细胞分化的关键挑战,以提高可再生性和控制.
- 发育生物学方面的进展对于有机体技术及其临床应用的未来至关重要.
相关概念视频
Molecular Models
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
Mechanistic Models: Overview of Compartment Models
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
Mechanistic Models: Compartment Models in Individual and Population Analysis
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least squares (OLS)...
Modeling and Similitude
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
Typical Model Studies
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Design Example: Creating a Hydraulic Model of a Dam Spillway
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.


