NAD(+) Replenishment Improves Lifespan and Healthspan in Ataxia Telangiectasia Models via Mitophagy and DNA Repair.
NAD(+) Replenishment Improves Lifespan and Healthspan in Ataxia Telangiectasia Models via Mitophagy and DNA Repair.
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NAD(+)补给可以通过线粒体和DNA修复来改善telangiectasia模型中的寿命和健康状态。
DOI:
10.1016/j.cmet.2016.09.004
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发表时间:
2016-10-11
期刊:
影响因子:
29
通讯作者:
Bohr VA
中科院分区:
文献类型:
--
作者:
Fang EF;Kassahun H;Croteau DL;Scheibye-Knudsen M;Marosi K;Lu H;Shamanna RA;Kalyanasundaram S;Bollineni RC;Wilson MA;Iser WB;Wollman BN;Morevati M;Li J;Kerr JS;Lu Q;Waltz TB;Tian J;Sinclair DA;Mattson MP;Nilsen H;Bohr VA
Ataxia telangiectasia (A-T) is a rare autosomal recessive disease characterized by progressive neurodegeneration and cerebellar ataxia. A-T is causally linked to defects in ATM, a master regulator of the response to and repair of DNA double-strand breaks. The molecular basis of cerebellar atrophy and neurodegeneration in A-T patients is unclear. Here we report and examine the significance of increased PARylation, low NAD+ and mitochondrial dysfunction in ATM-deficient mice and worms. Treatments that replenish intracellular NAD+ reduce the severity of A-T neuropathology, normalize neuromuscular function, delay memory loss and extend lifespan in both animal models. Mechanistically, treatments that increase intracellular NAD+ also stimulate neuronal DNA repair and improve mitochondrial quality via mitophagy. This work links two major theories on aging, DNA damage accumulation and mitochondrial dysfunction through nuclear DNA damage-induced nuclear-mitochondrial signaling, and demonstrates that they are important pathophysiological determinants in premature aging of A-T, pointing to therapeutic interventions.
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DOI:
10.1126/science.1231097
发表时间:
2013-03-08
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Hubbard BP;Gomes AP;Dai H;Li J;Case AW;Considine T;Riera TV;Lee JE;E SY;Lamming DW;Pentelute BL;Schuman ER;Stevens LA;Ling AJ;Armour SM;Michan S;Zhao H;Jiang Y;Sweitzer SM;Blum CA;Disch JS;Ng PY;Howitz KT;Rolo AP;Hamuro Y;Moss J;Perni RB;Ellis JL;Vlasuk GP;Sinclair DA
通讯作者:
Sinclair DA
影响因子:
25
作者:
Dobbin MM;Madabhushi R;Pan L;Chen Y;Kim D;Gao J;Ahanonu B;Pao PC;Qiu Y;Zhao Y;Tsai LH
通讯作者:
Tsai LH
影响因子:
64.5
作者:
Barlow, C;Hirotsune, S;WynshawBoris, A
通讯作者:
WynshawBoris, A
DOI:
10.1007/s00438-012-0681-0
发表时间:
2012-04
期刊:
Molecular genetics and genomics : MGG
影响因子:
--
作者:
Jones MR;Huang JC;Chua SY;Baillie DL;Rose AM
通讯作者:
Rose AM
影响因子:
64.5
作者:
Fang EF;Scheibye-Knudsen M;Brace LE;Kassahun H;SenGupta T;Nilsen H;Mitchell JR;Croteau DL;Bohr VA
通讯作者:
Bohr VA