2016
DOI: 10.1016/j.celrep.2016.08.006
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JNK Phosphorylates SIRT6 to Stimulate DNA Double-Strand Break Repair in Response to Oxidative Stress by Recruiting PARP1 to DNA Breaks

Abstract: SUMMARY The accumulation of damage caused by oxidative stress has been linked to aging and to the etiology of numerous age-related diseases. The longevity gene, sirtuin 6 (SIRT6), promotes genome stability by facilitating DNA repair, especially under oxidative stress conditions. Here we uncover the mechanism by which SIRT6 is activated by oxidative stress to promote DNA double-strand break (DSB) repair. We show that the stress-activated protein kinase, c-Jun N-terminal kinase (JNK), phosphorylates SIRT6 on ser… Show more

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Cited by 110 publications
(104 citation statements)
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“…As recently revealed, in response to oxidative stress, SIRT6 is phosphorylated on serine (Ser)-10 by the stressactivated c-Jun N-terminal kinase ( JNK), followed by a rapid recruitment of SIRT6 to the double-strand break site and the simultaneous activation of the SIRT6-mediated mono-ADP ribosylation of poly-(ADP-ribose) polymerase 1 (PARP1) (182). SIRT6-deficient (SIRT6 -/-) human mesenchymal stem cells showed increased ROS levels, dysregulated redox metabolism, and increased sensitivity to oxidative stress (139).…”
Section: Redox Regulation Of Sirt6 In Vascular Protectionmentioning
confidence: 99%
“…As recently revealed, in response to oxidative stress, SIRT6 is phosphorylated on serine (Ser)-10 by the stressactivated c-Jun N-terminal kinase ( JNK), followed by a rapid recruitment of SIRT6 to the double-strand break site and the simultaneous activation of the SIRT6-mediated mono-ADP ribosylation of poly-(ADP-ribose) polymerase 1 (PARP1) (182). SIRT6-deficient (SIRT6 -/-) human mesenchymal stem cells showed increased ROS levels, dysregulated redox metabolism, and increased sensitivity to oxidative stress (139).…”
Section: Redox Regulation Of Sirt6 In Vascular Protectionmentioning
confidence: 99%
“…Van Meter et al . (105) found that JNK activity (in response to oxidative stress) leads to the stimulation of DSBR via phosphorylation of sirtuin 6 (SIRT6), a member of the SIRT family, on serine 10. SIRT6, which is sited in the nucleus, is needed for maintaining genomic stability.…”
Section: Dna Damage and Repair In Ad And Hsv1mentioning
confidence: 99%
“…SIRT6 promotes the activation of PARP1 at DSBs and the repair of DSBs by both NHEJ and HR (71,99). For DSBs, PARP1 and the PAR chains cause the recruitment of the nucleosome remodelling deacetylase (NuRD) complex (100,101) and the polycomb group (PcG) proteins (101103), all of which are essential for the effective repair of DSBs (100,102104) (Figure 1C).…”
Section: Introductionmentioning
confidence: 99%
“…Another NAD + dependent histone deacetylase, namely SIRT6, deacetylates CtIP (181) and contributes to the recruitment of DNA-PKcs to DSBs (173) and the activation of PARP1 (71,99) and therefore plays a role in HR and NHEJ (71). BER, DNA damage signalling, NHEJ and HR are initiated, at least in part, by PARP1 as PARP1 binds to and is activated by SSBs (68), AP-sites (67) and DSBs (98).…”
Section: Introductionmentioning
confidence: 99%