Interestingly, there was no difference in survival rates between BPD rats injected with cells from lot MSC H and those injected with cells from lot MSC L. However, a significant decrease in CD11b levels and an increase in CD163 levels were observed in BPD rats injected with cells from lot MSC H. In contrast, BPD rats injected with cells from lot MSC L, which secreted low levels of decorin, had high levels of CD11b expression and low levels of CD163 expression. This evidence concerns the gene CD163 and bronchopulmonary dysplasia.