Human heart valve-like tissues from pluripotent stem cells with enhanced maturation recapitulate inflammatory valve disease.

Bioengineered human heart valve-like tissues from pluripotent stem cells mimic native valves and reveal key features of valve maturation and disease.

• Why it matters: Understanding human valve development and disease mechanisms is limited, hindering effective treatments for heart valve conditions.
• What they did: Researchers developed a protocol to create 3D valve-like tissues from pluripotent stem cells, analyzing molecular features, maturation signatures, and disease modeling with inflammatory cytokines.
• The result: The engineered tissues exhibit native-like cellular composition and molecular profiles, enabling studies of valve maturation and pathology, including calcification, which advances disease understanding and therapeutic development.