Abstract：
:The glyoxalase system has been studied since 1913. The biochemical function of this enzymatic system is the metabolism of reactive dicarbonyl metabolites, glyoxal and methylglyoxal, to less reactive products. In the last decade research has shown that methylglyoxal is the precursor of quantitatively important damage to the proteome and genome, forming mainly hydroimidazolone and imidazopurinone adducts in protein and DNA respectively. The aim of this article is to review the evidence of the involvement of the glyoxalase system in ageing and role of glyoxalase in future research into healthy ageing-mainly in mammalian systems for insights into consequences and interventions in human health. Protein and DNA damage by glyoxalase system substrates is linked to dysfunction of proteins susceptible to dicarbonyl modification-the dicarbonyl proteome, and DNA instability and mutation. A component of the glyoxalase system, glyoxalase 1, is a gene with expression influential on lifespan-increasing longevity being associated with increased expression of glyoxalase 1. The glyoxalase 1 gene is also a site of copy number variation in both transcribed and non-transcribed regions giving rise to population variation of expression. The glyoxalase system and Glo1 expression particularly is therefore likely linked to healthy ageing.
journal_name
Semin Cell Dev Bioljournal_title
Seminars in cell & developmental biologyauthors
Xue M,Rabbani N,Thornalley PJdoi
10.1016/j.semcdb.2011.02.013subject
Has Abstractpub_date
2011-05-01 00:00:00pages
293-301issue
3eissn
1084-9521issn
1096-3634pii
S1084-9521(11)00026-7journal_volume
22pub_type
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