Fig. 4From: Hemosiderin in sputum macrophages may predict infective exacerbations of chronic obstructive pulmonary disease: a retrospective observational studyMechanisms of Iron Uptake in Alveolar Macrophages. *Genes related to iron storage (Hemopexin and Haptoglobin), and export (Ceruloplasmin). **Mobilization by reducing agents and cleavage of transferrinBack to article page