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Drug-induced cardiac mitochondrial toxicity and protection: from doxorubicin to carvedilol.

Authors :
Pereira GC
Silva AM
Diogo CV
Carvalho FS
Monteiro P
Oliveira PJ
Source :
Current pharmaceutical design [Curr Pharm Des] 2011; Vol. 17 (20), pp. 2113-29.
Publication Year :
2011

Abstract

Mitochondria have long been involved in several cellular processes beyond its role in energy production. The importance of this organelle for cardiac tissue homeostasis has been greatly investigated and its impairment can lead to cell death and consequent organ failure. Several compounds have been described in the literature as having direct effects on cardiac mitochondria which can provide a mechanistic explanation for their toxicological or pharmacological effects. The present review describes one classic example of drug-induced cardiac mitochondrial toxicity and another case of drug-induced mitochondrial protection. For the former, we present the case for doxorubicin, an anticancer agent whose treatment is associated with a cumulative and dose-dependent cardiomyopathy with a mitochondrial etiology. Following this, we present the case of carvedilol, a β-blocker with intrinsic antioxidant activity, which has been described to protect cardiac mitochondria from oxidative injury. The final part of the review integrates information from the previous chapters, demonstrating how carvedilol can contribute to reduce doxorubicin toxicity on cardiac mitochondria. The two referred examples result in important take-home messages: a) drug-induced cardiac mitochondrial dysfunction is an important contributor for drug-associated organ failure, b) protection of mitochondrial function is involved in the beneficial impact of some clinically-used drugs and c) a more accurate prediction of toxic vs. beneficial effects should be an important component of drug development by the pharmaceutical industry.

Details

Language :
English
ISSN :
1873-4286
Volume :
17
Issue :
20
Database :
MEDLINE
Journal :
Current pharmaceutical design
Publication Type :
Academic Journal
Accession number :
21718248
Full Text :
https://doi.org/10.2174/138161211796904812