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.
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DOI:
10.1002/emmm.200900046
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发表时间:
2009-11
影响因子:
11.1
通讯作者:
Manfredi, Giovanni
中科院分区:
文献类型:
--
作者:
Acin-Perez, Rebeca;Salazar, Eric;Brosel, Sonja;Yang, Hua;Schon, Eric A.;Manfredi, Giovanni
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.
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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.
影响因子:
4.8
作者:
Fernández-Vizarra, E;López-Pérez, MJ;Enriquez, JA
通讯作者:
Enriquez, JA
影响因子:
3.5
作者:
D'Aurelio, Marilena;Gajewski, Carl D.;Manfredi, Giovanni
通讯作者:
Manfredi, Giovanni
影响因子:
4.8
作者:
Lee, I;Salomon, AR;Hüttemann, M
通讯作者:
Hüttemann, M