The yin and yang faces of the mitochondrial deacetylase sirtuin 3 in age-related disorders.
Aging, the most important risk factor for many of the chronic diseases affecting Western society, is associated with a decline in mitochondrial function and dynamics. Sirtuin 3 (SIRT3) is a mitochondrial deacetylase that has emerged as a key regulator of fundamental processes which are frequently dysregulated in aging and related disorders. This review highlights recent advances and controversies regarding the yin and yang functions of SIRT3 in metabolic, cardiovascular and neurodegenerative diseases, as well as the use of SIRT3 modulators as a therapeutic strategy against those disorders. Although most studies point to a protective role upon SIRT3 activation, there are conflicting findings that need a better elucidation. The discovery of novel SIRT3 modulators with higher selectivity together with the assessment of the relative importance of different SIRT3 enzymatic activities and the relevance of crosstalk between distinct sirtuin isoforms will be pivotal to validate SIRT3 as a useful drug target for the prevention and treatment of age-related diseases.
['Gomes|Pedro|P|', 'Viana|Sofia D|SD|', 'Nunes|Sara|S|', 'Rolo|Anabela P|AP|', 'Palmeira|Carlos M|CM|', 'Reis|Flávio|F|']
D000375:Aging D000818:Animals D002318:Cardiovascular Diseases D006801:Humans D008659:Metabolic Diseases D008928:Mitochondria D019636:Neurodegenerative Diseases D020033:Protein Isoforms D056566:Sirtuin 3
Sirtuins Age-related diseases Deacetylation Genetic manipulations Mitochondria Pharmacological modulators