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Medicina (Buenos Aires)

Print version ISSN 0025-7680

Abstract

MANUCHA, Walter. Mitochondria and oxidative stress participation in renal inflammatory process. Medicina (B. Aires) [online]. 2014, vol.74, n.3, pp.254-258. ISSN 0025-7680.

The apoptosis and renal fibrosis are processes inherent to the chronic kidney disease, and consequently a clear deregulation of the mitochondrial respiratory mechanism has been described in patients with chronic renal disease associated to an increase of the oxidative stress. The injured tubular cells linked to the interstitial macrophages and myofibroblasts produce cytokines and growth factors that encourage an inflammatory condition, inducing the apoptosis of the tubular cells and enabling the accumulation of the extracellular matrix. The angiotensin II has a central role in the renal fibrogenesis leading to a rapid progression of the chronic kidney disease. The growing levels of the angiotensin II induce pro-inflammatory cytokines, the activation of NF-kB, adhesion molecules,chemokines, growth factors, and oxidative stress. The current evidence suggests that the angiotensin II increases the mitochondrial oxidative stress, regulates the induction of the apoptosis and conditions the inflammatory process. Therefore the mitochondria and the oxidative stress would play a determinant role in the renal inflammatory process. Finally, this review summarizes our present knowledge regarding the possible mechanisms that would contribute to the apoptosis conditioned by inflammation and/or oxidative stress during the chronic renal disease. Additionally, a new concept of the anti-inflammatory tools is proposed to regulate the mitochondrial oxidative stress that would directly affect the inflammatory process and apoptosis. This concept could have positive consequences on the treatment of renal inflammatory pathologies and related diseases.

Keywords : Mitochondria; Oxidative stress; Chronic kidney disease; Angiotensin; Nitric oxide; Renal inflammatory process.

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