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Macrophage overexpressing NGAL ameliorated kidney fibrosis in the UUO mice model

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Background/Aims: Alternatively activated macrophages (AAM) have regenerative and anti-inflammatory characteristics. Here, we sought to evaluate whether AAM cell therapy reduces renal inflammation and fibrosis in the unilateral ureteral obstruction (UUO) mice model. Methods: We stabilized macrophages by adenoviral vector NGAL (Neutrophil gelatinase-associated lipocalin-2) and infused them into UUO mice. To ascertain whether macrophages were capable of reaching the obstructed kidney, macrophages were stained and detected by in vivo cell tracking. Results: We demonstrated that some infused macrophages reached the obstructed kidney and that infusion of macrophages overexpressing NGAL was associated with reduced kidney interstitial fibrosis and inflammation. This therapeutic effect was mainly associated with the phenotype and function preservation of the transferred macrophages isolated from the obstructed kidney Conclusions: Macrophage plasticity is a major hurdle for achieving macrophage therapy success in chronic nephropathies and could be overcome by transferring lipocalin-2.

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Cellular Physiology and Biochemistry, 2017, vol. 42, num. 5, p. 1945-1960

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Articles publicats en revistes (Ciències Clíniques)

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Macrophage overexpressing NGAL ameliorated kidney fibrosis in the UUO mice model