Lung-on-a-Chip Reveals How Asthma Attacks Permanently Change Airways

Researchers built a moving "lung-on-a-chip" using real airway cells that mimics asthma attacks, revealing for the first time that repeated airway constriction alone — without inflammation — permanently stiffens tissue and triggers abnormal blood vessel growth. The discovery also uncovered new proteins that could lead to better asthma diagnosis and treatments.