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Oxidized nicotinamide adenine dinucleotide-dependent mitochondrial deacetylase sirtuin-3 as a potential therapeutic target of Parkinson's disease.
Ageing Research Reviews ( IF 12.5 ) Pub Date : 2020-06-12 , DOI: 10.1016/j.arr.2020.101107
Zhi Dong Zhou 1 , Eng King Tan 2
Affiliation  

Mitochondrial impairment is associated with progressive dopamine (DA) neuron degeneration in Parkinson’s disease (PD). Recent findings highlight that Sirtuin-3 (SIRT3), a mitochondrial protein, is an oxidized nicotinamide adenine dinucleotide (NAD+)-dependent deacetylase and a key modulator in maintaining integrity and functions of mitochondria. SIRT3 plays vital roles in regulation of mitochondrial functions, including mitochondrial ATP generation and energy metabolism, anti-oxidant defense, and cell death and proliferation. SIRT3 can deacetylate the transcriptional factors and crosstalk with different signaling pathways to cooperatively modulate mitochondrial functions and regulate defensive mitochondrial quality control (QC) systems. Down-regulated NAD+ level and decreased SIRT3 activity are related to aging process and has been pathologically linked to PD pathogenesis. Further, SIRT3 can bind and deacetylate PTEN-induced kinase 1 (PINK1) and PD protein 2 E3 ubiquitin protein ligase (Parkin) to facilitate mitophagy. Leucine Rich Repeat Kinase 2 (LRRK2)-G2019S mutation in PD is linked to SIRT3 impairment. Furthermore, SIRT3 is inversely associated with α-synuclein aggregation and DA neuron degeneration in PD. SIRT3 chemical activators and NAD+ precursors can up-regulate SIRT3 activity to protect against DA neuron degeneration in PD models. Taken together, SIRT3 is a promising PD therapeutic target and studies of SIRT3 functional modulators with neuroprotective capability will be of clinical interest.



中文翻译:

氧化的烟酰胺腺嘌呤二核苷酸依赖性线粒体脱乙酰基酶sirtuin-3作为帕金森氏病的潜在治疗靶点。

线粒体损伤与帕金森病(PD)中的进行性多巴胺(DA)神经元变性有关。最近的发现突出表明,Sirtuin-3(SIRT3)是一种线粒体蛋白,是一种氧化的烟酰胺腺嘌呤二核苷酸(NAD +)依赖性脱乙酰基酶,并且是维持线粒体完整性和功能的关键调节剂。SIRT3在调节线粒体功能方面起着至关重要的作用,包括线粒体ATP的产生和能量代谢,抗氧化防御以及细胞死亡和增殖。SIRT3可以使转录因子脱乙酰化并通过不同的信号传导途径进行串扰,从而协同调节线粒体功能并调节防御性线粒体质量控制(QC)系统。下调的NAD +水平和降低的SIRT3活性与衰老过程有关,并且在病理上与PD的发病机理有关。此外,SIRT3可以结合PTEN诱导的激酶1(PINK1)和PD蛋白2 E3泛素蛋白连接酶(Parkin)并使其脱乙酰基,以促进线粒体吞噬。PD中的亮氨酸富集重复激酶2(LRRK2)-G2019S突变与SIRT3损伤相关。此外,SIRT3与PD中的α-突触核蛋白聚集和DA神经元变性成反比。SIRT3化学激活剂和NAD +前体可以上调SIRT3活性,以防止PD模型中DA神经元变性。总之,SIRT3是有前途的PD治疗靶标,具有神经保护能力的SIRT3功能调节剂的研究将具有临床意义。SIRT3可以使PTEN诱导的激酶1(PINK1)和PD蛋白2 E3泛素蛋白连接酶(Parkin)结合并使其脱乙酰基,以促进线粒体吞噬。PD中的亮氨酸富集重复激酶2(LRRK2)-G2019S突变与SIRT3损伤相关。此外,SIRT3与PD中的α-突触核蛋白聚集和DA神经元变性成反比。SIRT3化学激活剂和NAD +前体可以上调SIRT3活性,以防止PD模型中DA神经元变性。总之,SIRT3是有前途的PD治疗靶标,具有神经保护能力的SIRT3功能调节剂的研究将具有临床意义。SIRT3可以与PTEN诱导的激酶1(PINK1)和PD蛋白2 E3泛素蛋白连接酶(Parkin)结合并使其脱乙酰基,以促进线粒体吞噬。PD中的亮氨酸富集重复激酶2(LRRK2)-G2019S突变与SIRT3损伤相关。此外,SIRT3与PD中的α-突触核蛋白聚集和DA神经元变性成反比。SIRT3化学激活剂和NAD +前体可以上调SIRT3活性,以防止PD模型中DA神经元变性。总之,SIRT3是有前途的PD治疗靶标,具有神经保护能力的SIRT3功能调节剂的研究将具有临床意义。SIRT3与PD中的α-突触核蛋白聚集和DA神经元变性成反比。SIRT3化学激活剂和NAD +前体可以上调SIRT3活性,以防止PD模型中DA神经元变性。总之,SIRT3是有前途的PD治疗靶标,具有神经保护能力的SIRT3功能调节剂的研究将具有临床意义。SIRT3与PD中的α-突触核蛋白聚集和DA神经元变性成反比。SIRT3化学激活剂和NAD +前体可以上调SIRT3活性,以防止PD模型中DA神经元变性。总之,SIRT3是有前途的PD治疗靶标,具有神经保护能力的SIRT3功能调节剂的研究将具有临床意义。

更新日期:2020-06-12
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