A human iPSC-derived valve-like assembloid platform successfully modeled key aspects of in vivo valve features and human valve defects, including genetic mutations, injury, and hyperglycemia.
Development of a human iPSC-derived valve-like assembloid platform provides a new in vitro model for studying human heart valve development and disease mechanisms.
Heart valves maintain unidirectional blood flow, yet most understanding of their development and disease comes from animal models that do not fully capture human valve behavior. We present a human induced pluripotent stem cell (iPSC)-derived valve-like assembloid platform that models key aspects of in vivo valve features at the cellular and molecular levels. We found that mechanical forces, endothelial culture conditions, and fluidic shear stress respectively promote valve induction, maintenance, and extracellular matrix stratification. We further used this system to model human valve defects, including genetic mutations, injury, and hyperglycemia-related abnormalities. This assembloid platform enables the in vitro study of human valve development and disease mechanisms.
“Human valves are very different from animal valves. To study human valve diseases, we need human valve models.”
Researchers successfully created human heart valve tissues from stem cells, offering a new platform to model valve disease and develop regenerative therapies.
He et al. (2026) studied Heart valve development and disease. Human iPSC-derived valve-like assembloid platform was evaluated on Modeling of in vivo valve features and disease pathology. A human iPSC-derived valve-like assembloid platform successfully modeled key aspects of in vivo valve features and human valve defects, including genetic mutations, injury, and hyperglycemia.