Abstract
Cisplatin is a highly effective chemotherapeutic agent but displays significant ototoxic side effects. The most prominent change seen in the cochlea after cisplatin administration consists of loss of outer hair cells. Several mechanisms are believed to mediate cisplatin-induced apoptosis: binding of cisplatin to guanine bases on DNA and the formation of inter- and intra-strand chain cross-linking, generation of reactive oxygen species (ROS) with increased lipid peroxidation and Ca2+ influx and, finally, inflammation mediated by cisplatin. The aim of the present review is to analyze the role of ROS in the mechanisms causing cisplatin-mediated apoptosis in the inner ear and the contribution of the different pathways involved, emphasizing the main strategies to blockade events leading to apoptosis of cochlear cells.
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Abbreviations
- STAT1:
-
Signal transducer and activator of transcription-1
- TRPV1:
-
Transient receptor vanilloid-1
- siRNA:
-
Short interfering RNA
- ROS:
-
Reactive oxygen species
- NOX3:
-
NADPH nicotinamide adenine dinucleotide phosphate oxidase isoform, nitro-l-arginine methyl ester
- IL-1β:
-
Interleukin-1β
- TNF-α:
-
Tumor necrosis factor-α
- HSP70:
-
Heat shock protein 70
- HSP32:
-
Heat shock protein 32
- HO-1:
-
Heme oxygenase-1
- iNOS:
-
Inducible nitric oxide synthase
- NF-kβ:
-
Nuclear factor-kβ
- COX-2:
-
Cyclooxygenase-2
- TRAIL:
-
TNF-related apoptosis-inducing ligand
- Cyt-c :
-
Cytochrome c
- AIF:
-
Apoptosis-inducing factor
- PARP:
-
Poly (ADP-ribose) polymerase
- JNK-c:
-
Jun N-terminal kinase
- RIP1:
-
Kinase receptor interacting protein-1
- TRAF2:
-
TNF receptor-associated factor-2
- SOD:
-
Superoxide dismutase
- GSH:
-
Glutathione
- AP1:
-
Transcription activator protein-1
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Casares, C., Ramírez-Camacho, R., Trinidad, A. et al. Reactive oxygen species in apoptosis induced by cisplatin: review of physiopathological mechanisms in animal models. Eur Arch Otorhinolaryngol 269, 2455–2459 (2012). https://doi.org/10.1007/s00405-012-2029-0
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DOI: https://doi.org/10.1007/s00405-012-2029-0