Cancers 2017, 9(7), 90; doi:10.3390/cancers9070090
SIRT3: Oncogene and Tumor Suppressor in Cancer
1
Grupo Multidisciplinar de OncologÃa Traslacional, Institut Universitari d´Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears. Cra de Valldemossa, km 7.5, 07122 Palma, Illes Balears 07122, Spain
2
Ciber FisiopatologÃa Obesidad y Nutrición (CB06/03) Instituto Salud Carlos III, Madrid 28029, Spain
3
Instituto de Investigación Sanitaria de Baleares (IdISBa), Hospital Universitario, Son Espases, edificio S. E-07120 Palma, Palma de Mallorca, Illes Balears 07120, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Samuel C. Mok
Received: 4 May 2017 / Revised: 2 July 2017 / Accepted: 7 July 2017 / Published: 12 July 2017
Abstract
Sirtuin 3 (SIRT3), the major deacetylase in mitochondria, plays a crucial role in modulating oxygen reactive species (ROS) and limiting the oxidative damage in cellular components. SIRT3 targets different enzymes which regulate mitochondrial metabolism and participate in ROS detoxification, such as the complexes of the respiratory chain, the isocitrate dehydrogenase, or the manganese superoxide dismutase. Thus, SIRT3 activity is essential in maintaining mitochondria homeostasis and has recently received great attention, as it is considered a fidelity protein for mitochondrial function. In some types of cancer, SIRT3 functions as a tumoral promoter, since it keeps ROS levels under a certain threshold compatible with cell viability and proliferation. On the contrary, other studies describe SIRT3 as a tumoral suppressor, as SIRT3 could trigger cell death under stress conditions. Thus, SIRT3 could have a dual role in cancer. In this regard, modulation of SIRT3 activity could be a new target to develop more personalized therapies against cancer. View Full-TextKeywords:
SIRT3; cancer; ROS; antioxidant enzymes; mitochondria
▼
Figures
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
Share & Cite This Article
MDPI and ACS Style
Torrens-Mas, M.; Oliver, J.; Roca, P.; Sastre-Serra, J. SIRT3: Oncogene and Tumor Suppressor in Cancer. Cancers 2017, 9, 90.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.