ACTA1 and acute respiratory distress syndrome: To examine the effects of cryo-MenSCs treatments on lung damage and the remodeling process associated with ARDS, the diffuse alveolar damage (DAD) score, the fibers content (collagen and elastic), α-SMA and wall thickness and adventitia of the small pulmonary arteries were evaluated (Figures 5A, B; Supplementary Figure S3).