Modulation of mitochondrial protein phosphorylation by soluble adenylyl cyclase ameliorates cytochrome oxidase defects.

Modulation of mitochondrial protein phosphorylation by soluble adenylyl cyclase ameliorates cytochrome oxidase defects.
复制标题

DOI:
10.1002/emmm.200900046
复制
发表时间:
2009-11
影响因子:
11.1
通讯作者:
Manfredi, Giovanni
Manfredi, Giovanni
中科院分区:
医学1区
文献类型:
--
作者:
Acin-Perez, Rebeca;Salazar, Eric;Brosel, Sonja;Yang, Hua;Schon, Eric A.;Manfredi, Giovanni

文献摘要

参考文献

被引文献

相似文献

呼吸链组分的磷酸化已成为线粒体能量代谢的一种调节模式,但其机制仍在很大程度上未被探索。最近发现的线粒体内信号通路通过线粒体可溶性腺苷酸环化酶(mt-sAC)的作用将克雷布斯循环产生的CO2与呼吸链联系起来。细胞色素氧化酶(考克斯)是线粒体中一种重要的酶,其缺陷会导致许多致命的代谢紊乱。我们现在已经发现,在培养的细胞和考克斯缺乏的动物中,mt-sAC途径以活性氧依赖性方式调节线粒体生物合成。我们发现,上调mt-sAC使活性氧产生和线粒体生物合成正常化,从而恢复线粒体功能。这是第一个操纵线粒体信号通路以实现考克斯直接正调控的例子,对开发治疗线粒体疾病的新方法具有明确的意义。
Phosphorylation of respiratory chain components has emerged as a mode of regulation of mitochondrial energy metabolism, but its mechanisms are still largely unexplored. A recently discovered intramitochondrial signalling pathway links CO2 generated by the Krebs cycle with the respiratory chain, through the action of a mitochondrial soluble adenylyl cyclase (mt-sAC). Cytochrome oxidase (COX), whose deficiency causes a number of fatal metabolic disorders, is a key mitochondrial enzyme activated by mt-sAC. We have now discovered that the mt-sAC pathway modulates mitochondrial biogenesis in a reactive oxygen species dependent manner, in cultured cells and in animals with COX deficiency. We show that upregulation of mt-sAC normalizes reactive oxygen species production and mitochondrial biogenesis, thereby restoring mitochondrial function. This is the first example of manipulation of a mitochondrial signalling pathway to achieve a direct positive modulation of COX, with clear implications for the development of novel approaches to treat mitochondrial diseases.
DOI: 10.1074/jbc.m106429200
发表时间: 2001-12-14
影响因子: 4.8
作者:
D'Aurelio, M;Pallotti, F;Manfredi, G
通讯作者: Manfredi, G
DOI: 10.1073/pnas.0705070104
发表时间: 2007-07-17
影响因子: 11.1
作者:
Jaeger, Sibylle;Handschin, Christoph;Spiegelman, Bruce M.
通讯作者: Spiegelman, Bruce M.
DOI: 10.1016/s1046-2023(02)00034-8
发表时间: 2002-04-01
期刊: METHODS
影响因子: 4.8
作者:
Fernández-Vizarra, E;López-Pérez, MJ;Enriquez, JA
通讯作者: Enriquez, JA
DOI: 10.1093/hmg/ddl141
发表时间: 2006-07-01
影响因子: 3.5
作者:
D'Aurelio, Marilena;Gajewski, Carl D.;Manfredi, Giovanni
通讯作者: Manfredi, Giovanni
DOI: 10.1074/jbc.m411335200
发表时间: 2005-02-18
影响因子: 4.8
作者:
Lee, I;Salomon, AR;Hüttemann, M
通讯作者: Hüttemann, M