PMID- 18588880 OWN - NLM STAT- MEDLINE DCOM- 20080915 LR - 20161124 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 582 IP - 17 DP - 2008 Jul 23 TI - Sirtuin-mediated deacetylation pathway stabilizes Werner syndrome protein. PG - 2479-83 LID - 10.1016/j.febslet.2008.06.031 [doi] AB - Caloric restriction (CR) is known to promote longevity in various species. Sirtuin-mediated deacetylation has been shown to be related to the promotion of longevity in some species. Here, we show that CR of rats led to an increase in the level of Werner syndrome protein (WRN), a recognized DNA repair protein. In addition, CR simultaneously increased the level of SIRT1, a mammalian sirtuin. In HEK293T cells, sirtuin inhibitors decreased the WRN level, and this effect was suppressed by proteasomal inhibitors. Furthermore, we found a decrease in the WRN level in Sirt1-deficient mice. These results indicate that sirtuin-mediated deacetylation stabilizes WRN. STRUCTURED SUMMARY: FAU - Kahyo, Tomoaki AU - Kahyo T AD - Molecular Gerontology Research Group, Mitsubishi Kagaku Institute of Life Sciences, Minamiooya, Machida, Tokyo, Japan. FAU - Mostoslavsky, Raul AU - Mostoslavsky R FAU - Goto, Makoto AU - Goto M FAU - Setou, Mitsutoshi AU - Setou M LA - eng PT - Journal Article DEP - 20080625 PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (Enzyme Inhibitors) RN - EC 3.1.- (Exodeoxyribonucleases) RN - EC 3.4.25.1 (Proteasome Endopeptidase Complex) RN - EC 3.4.99.- (ATP dependent 26S protease) RN - EC 3.5.1.- (SIRT1 protein, human) RN - EC 3.5.1.- (Sirtuin 1) RN - EC 3.5.1.- (Sirtuins) RN - EC 3.6.4.12 (RecQ Helicases) RN - EC 3.6.4.12 (WRN protein, human) RN - EC 3.6.4.12 (Werner Syndrome Helicase) SB - IM MH - Acetylation MH - Animals MH - *Caloric Restriction MH - Enzyme Inhibitors/pharmacology MH - Enzyme Stability MH - Exodeoxyribonucleases/*metabolism MH - Humans MH - Liver/enzymology MH - Mice MH - Mice, Mutant Strains MH - Proteasome Endopeptidase Complex/metabolism MH - Rats MH - RecQ Helicases/*metabolism MH - Sirtuin 1 MH - Sirtuins/antagonists & inhibitors/genetics/*metabolism MH - Werner Syndrome Helicase EDAT- 2008/07/01 09:00 MHDA- 2008/09/16 09:00 CRDT- 2008/07/01 09:00 PHST- 2008/04/14 00:00 [received] PHST- 2008/06/09 00:00 [revised] PHST- 2008/06/10 00:00 [accepted] PHST- 2008/07/01 09:00 [pubmed] PHST- 2008/09/16 09:00 [medline] PHST- 2008/07/01 09:00 [entrez] AID - S0014-5793(08)00542-5 [pii] AID - 10.1016/j.febslet.2008.06.031 [doi] PST - ppublish SO - FEBS Lett. 2008 Jul 23;582(17):2479-83. doi: 10.1016/j.febslet.2008.06.031. Epub 2008 Jun 25.