Pathogenesis of chronic cardiorenal syndrome: Is there a role for oxidative stress?

Speranza Rubattu, Silvia Mennuni, Marco Testa, Mara Mennuni, Giorgia Pierelli, Beniamino Pagliaro, Erica Gabriele, Roberta Coluccia, Camillo Autore, Massimo Volpe

Research output: Contribution to journalArticlepeer-review

Abstract

Cardiorenal syndrome is a frequently encountered clinical condition when the dysfunction of either the heart or kidneys amplifies the failure progression of the other organ. Complex biochemical, hormonal and hemodynamic mechanisms underlie the development of cardiorenal syndrome. Both in vitro and experimental studies have identified several dysregulated pathways in heart failure and in chronic kidney disease that lead to increased oxidative stress. A decrease in mitochondrial oxidative metabolism has been reported in cardiomyocytes during heart failure. This is balanced by a compensatory increase in glucose uptake and glycolysis with consequent decrease in myocardial ATP content. In the kidneys, both NADPH oxidase and mitochondrial metabolism are important sources of TGF-β1-induced cellular ROS. NOX-dependent oxidative activation of transcription factors such as NF-kB and c-jun leads to increased expression of renal target genes (phospholipaseA2, MCP-1 and CSF-1, COX-2), thus contributing to renal interstitial fibrosis and inflammation. In the present article, we postulate that, besides contributing to both cardiac and renal dysfunction, increased oxidative stress may also play a crucial role in cardiorenal syndrome development and progression. In particular, an imbalance between the renin-angiotensin-aldosterone system, the sympathetic nervous system, and inflammation may favour cardiorenal syndrome through an excessive oxidative stress production. This article also discusses novel therapeutic strategies for their potential use in the treatment of patients affected by cardiorenal syndrome.

Original languageEnglish
Pages (from-to)23011-23032
Number of pages22
JournalInternational Journal of Molecular Sciences
Volume14
Issue number11
DOIs
Publication statusPublished - Nov 20 2013

Keywords

  • Heart failure
  • Inflammation
  • Mitochondrial dysfunction
  • Oxidative stress
  • Renal failure
  • Renin-angiotensin-aldosterone system
  • Sympathetic nervous system

ASJC Scopus subject areas

  • Computer Science Applications
  • Molecular Biology
  • Catalysis
  • Inorganic Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Physical and Theoretical Chemistry

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