@article{6b505956f51847b3ba1921e549a10947,
title = "Reversal of mitochondrial transhydrogenase causes oxidative stress in heart failure",
abstract = "Mitochondrial reactive oxygen species (ROS) play a central role in most aging-related diseases. ROS are produced at the respiratory chain that demands NADH for electron transport and are eliminated by enzymes that require NADPH. The nicotinamide nucleotide transhydrogenase (Nnt) is considered a key antioxidative enzyme based on its ability to regenerate NADPH from NADH. Here, we show that pathological metabolic demand reverses the direction of the Nnt, consuming NADPH to support NADH and ATP production, but at the cost of NADPH-linked antioxidative capacity. In heart, reverse-mode Nnt is the dominant source for ROS during pressure overload. Due to a mutation of the Nnt gene, the inbred mouse strain C57BL/6J is protected from oxidative stress, heart failure, and death, making its use in cardiovascular research problematic. Targeting Nnt-mediated ROS with the tetrapeptide SS-31 rescued mortality in pressure overload-induced heart failure and could therefore have therapeutic potential in patients with this syndrome.",
author = "Nickel, {Alexander G.} and {Von Hardenberg}, Albrecht and Mathias Hohl and L{\"o}ffler, {Joachim R.} and Michael Kohlhaas and Janne Becker and Reil, {Jan Christian} and Andrey Kazakov and Julia Bonnekoh and Moritz Stadelmaier and Puhl, {Sarah Lena} and Michael Wagner and Ivan Bogeski and Sonia Cortassa and Reinhard Kappl and Bastian Pasieka and Michael Lafontaine and Lancaster, {C. Roy D.} and Blacker, {Thomas S.} and Hall, {Andrew R.} and Duchen, {Michael R.} and Lars K{\"a}stner and Peter Lipp and Tanja Zeller and Christian M{\"u}ller and Andreas Knopp and Ulrich Laufs and Michael B{\"o}hm and Markus Hoth and Christoph Maack",
note = "Funding Information: The study was supported by the Deutsche Forschungsgemeinschaft (Emmy Noether- and Heisenberg Programm to C. Maack; SFB 894 to M. Hoth and C. Maack; KFO 196 to C. Maack, U.L, A.K., M.B.; and SFB 1027 to M. Hoth (project A2) and I.B. (project C4); BO3643/3-1 to I.B.), the Deutsche Gesellschaft f{\"u}r Kardiologie (Otto Hess Stipendium to M.S.) and the Staatskanzlei Saarland (LFFP 11/02 and 15/04) (to C.R.D.L.). U.L. and C. Maack are supported by the Corona foundation. We thank Michelle Gulentz, Lisa Lang, Jeanette Zimolong, and Nina Schnellbach for technical assistance and Ting-Ting Huang (Stanford University, CA) for providing the antibody against Nnt. Publisher Copyright: {\textcopyright} 2015 Elsevier Inc.",
year = "2015",
month = sep,
day = "1",
doi = "10.1016/j.cmet.2015.07.008",
language = "English (US)",
volume = "22",
pages = "472--484",
journal = "Cell Metabolism",
issn = "1550-4131",
publisher = "Cell Press",
number = "3",
}