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Published on: December 6, 2016
A Long-lived Avatar for Modeling Age-Related Vascular Disease
Biorxiv : the Preprint Server for Biology
|May 18, 2026
Summary
Researchers developed a long-term human vascular avatar for studying vascular aging and disease. This advanced model supports chronic disease modeling and drug testing, overcoming limitations of current microphysiological systems.
Area of Science:
- Vascular Biology
- Regenerative Medicine
- Biotechnology
Background:
- Current microphysiological models lack the longevity for chronic vascular disease studies.
- Prolonged cell culture leads to senescence and inconsistent results in vascular modeling.
- There is a critical need for sustained models for long-term vascular disease research and drug screening.
Purpose of the Study:
- To develop and sustain a long-term multicellular human vascular avatar.
- To enable investigations into chronic vascular disease development and aging.
- To create a platform for long-term drug testing and therapeutic strategy evaluation.
Main Methods:
- Optimized culture media (VSL and mVSL) were developed using cell morphology, qPCR, ELISA, and RNA-seq analyses.
- Induced pluripotent stem cell (iPSC)-derived endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) were cultured in Gravitational Lumen Patterning (GLP) Vessel-Chips.
- A multicellular human vascular avatar was maintained for over 180 days in a 3D extracellular matrix environment.
Main Results:
- A novel optimized culture media (VSL/mVSL) was identified to enhance long-term vascular endothelial cell (EC) and EC-VSMC crosstalk and viability.
- A stable, multicellular human vascular avatar was successfully engineered and maintained for over 180 days.
- The vascular avatar effectively modeled vascular aging using iPSC-derived cells from Hutchinson-Gilford Progeria Syndrome (HGPS) patients.
Conclusions:
- A robust, long-lived human vascular avatar has been successfully engineered and maintained.
- This platform enables the study of disease-associated vascular aging.
- The vascular avatar is suitable for evaluating therapeutic strategies for chronic vascular disorders.
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