The number of lymphocytes and granulocytes increase in the alveolar lavage fluid of IL10-specific deletion mice treated with BLM; however, there is no difference in lung tissue fibrosis from wild-type mice, suggesting that IL-10 plays a role in the immunomodulatory effects of alveolar inflammation but not in pulmonary fibrosis [47]. Here, IL10 is linked to pulmonary fibrosis.