Fig. 6

Comparison of DiR-labeled MSC-EV biodistribution between ALI and healthy mice. Ex vivo florescence in A kidneys, B liver, C spleen and D lungs found significantly elevated pulmonary distribution during ALI, whereas greater accumulation to the liver and spleen was seen in healthy mice. N = 4–10 per group for ALI mice, N = 3–6 for healthy mice. Data are presented as mean ± SEM, *P < 0.05, **P < 0.01