Related Experiment Video
Updated: Aug 6, 2026
In Vitro Model of Fetal Human Vessel On-chip to Study Developmental Mechanobiology
Published on: July 28, 2023
Engineering etiology-aligned in vitro models of human vessels
Qi Li1,2,3, Jiaxin Lin4, Wenyu Zou4
1School of Engineering, Hangzhou Normal University, Hangzhou, 311121, People's Republic of China. lqhznu@hznu.edu.cn.
Insights
Developing human-relevant vascular models is crucial for understanding diseases. This review presents a framework linking disease causes to in vitro systems for better research and precision therapies.
Area of Science:
- Biomedical Engineering
- Translational Medicine
- Vascular Biology
Background:
- Vascular diseases represent a significant global health challenge.
- Traditional animal models inadequately replicate human-specific disease mechanisms.
- Policy changes necessitate the development of human-relevant vascular research platforms.
Purpose of the Study:
- To introduce an etiology-to-model framework for vascular diseases.
- To map principal vascular disease classes to suitable in vitro systems.
- To guide the development of predictive human-relevant vascular models.
Main Methods:
- Categorization of vascular diseases into six etiological classes.
- Evaluation of various in vitro systems including 2D assays, organoids, organ-on-chip, tissue-engineered grafts, and bioprinted vessels.
- Assessment of how these models recapitulate structural, cellular, and hemodynamic features of human vascular pathology.
Main Results:
- The framework links six vascular disease classes (congenital, metabolic, neoplastic, inflammatory, degenerative, risk factor-induced) to specific in vitro models.
- Different in vitro platforms (2D, organoids, organ-on-chip, engineered grafts, bioprinted vessels) capture distinct aspects of vascular pathology.
- The primary challenge lies in model validation against disease-specific benchmarks and integrating complexity with reproducibility.
Conclusions:
- An etiology-to-model framework aids in selecting and designing appropriate human-relevant vascular platforms.
- Validation and integration of biological complexity are key to advancing predictive vascular modeling.
- This approach supports accelerated mechanistic insight and precision therapy development for vascular diseases.
Abstract:
Vascular diseases remain a major global health burden, yet traditional animal models often fail to capture the human-specific mechanisms that drive disease progression. Recent policy shifts, including the FDA Modernization Act and the NIH's transition away from animal-only studies, have intensified the need for human-relevant vascular platforms. This review introduces an etiology-to-model framework that maps six principal classes of vascular disease, including congenital, metabolic, neoplastic, inflammatory, degenerative, and risk factor-induced, to the in vitro systems best equipped to reproduce their defining microenvironmental disturbances. We evaluate how 2D assays, organoids, organ-on-chip platforms, tissue-engineered grafts, and bioprinted vessels each recapitulate distinct structural, cellular, and hemodynamic features of human pathology. We argue that the central challenge is no longer the lack of advanced tools, but the need to validate models against disease-specific benchmarks and integrate biological complexity without compromising reproducibility. By embedding disease etiology into model design, this framework provides a foundation for developing predictive vascular platforms that accelerate mechanistic insight and support precision therapy development.
