#PAGE_PARAMS# #ADS_HEAD_SCRIPTS# #MICRODATA#

Alternative Oxidase Expression in the Mouse Enables Bypassing Cytochrome Oxidase Blockade and Limits Mitochondrial ROS Overproduction


Cyanide-resistant non-phosphorylating respiration is known in mitochondria from plants, fungi, and microorganisms but is absent in mammals. It results from the activity of an alternative oxidase (AOX) that conveys electrons directly from the respiratory chain (RC) ubiquinol pool to oxygen. AOX thus provides a bypath that releases constraints on the cytochrome pathway and prevents the over-reduction of the ubiquinone pool, a major source of superoxide. RC dysfunctions and deleterious superoxide overproduction are recurrent themes in human pathologies, ranging from neurodegenerative diseases to cancer, and may be instrumental in ageing. Thus, preventing RC blockade and excess superoxide production by means of AOX should be of considerable interest. However, because of its energy-dissipating properties, AOX might produce deleterious effects of its own in mammals. Here we show that AOX can be safely expressed in the mouse (MitAOX), with major physiological parameters being unaffected. It neither disrupted the activity of other RC components nor decreased oxidative phosphorylation in isolated mitochondria. It conferred cyanide-resistance to mitochondrial substrate oxidation and decreased reactive oxygen species (ROS) production upon RC blockade. Accordingly, AOX expression was able to support cyanide-resistant respiration by intact organs and to afford prolonged protection against a lethal concentration of gaseous cyanide in whole animals. Taken together, these results indicate that AOX expression in the mouse is innocuous and permits to overcome a RC blockade, while reducing associated oxidative insult. Therefore, the MitAOX mice represent a valuable tool in order to investigate the ability of AOX to counteract the panoply of mitochondrial-inherited diseases originating from oxidative phosphorylation defects.


Vyšlo v časopise: Alternative Oxidase Expression in the Mouse Enables Bypassing Cytochrome Oxidase Blockade and Limits Mitochondrial ROS Overproduction. PLoS Genet 9(1): e32767. doi:10.1371/journal.pgen.1003182
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pgen.1003182

Souhrn

Cyanide-resistant non-phosphorylating respiration is known in mitochondria from plants, fungi, and microorganisms but is absent in mammals. It results from the activity of an alternative oxidase (AOX) that conveys electrons directly from the respiratory chain (RC) ubiquinol pool to oxygen. AOX thus provides a bypath that releases constraints on the cytochrome pathway and prevents the over-reduction of the ubiquinone pool, a major source of superoxide. RC dysfunctions and deleterious superoxide overproduction are recurrent themes in human pathologies, ranging from neurodegenerative diseases to cancer, and may be instrumental in ageing. Thus, preventing RC blockade and excess superoxide production by means of AOX should be of considerable interest. However, because of its energy-dissipating properties, AOX might produce deleterious effects of its own in mammals. Here we show that AOX can be safely expressed in the mouse (MitAOX), with major physiological parameters being unaffected. It neither disrupted the activity of other RC components nor decreased oxidative phosphorylation in isolated mitochondria. It conferred cyanide-resistance to mitochondrial substrate oxidation and decreased reactive oxygen species (ROS) production upon RC blockade. Accordingly, AOX expression was able to support cyanide-resistant respiration by intact organs and to afford prolonged protection against a lethal concentration of gaseous cyanide in whole animals. Taken together, these results indicate that AOX expression in the mouse is innocuous and permits to overcome a RC blockade, while reducing associated oxidative insult. Therefore, the MitAOX mice represent a valuable tool in order to investigate the ability of AOX to counteract the panoply of mitochondrial-inherited diseases originating from oxidative phosphorylation defects.


Zdroje

1. Pierron D, Wildman DE, Huttemann M, Markondapatnaikuni GC, Aras S, et al.. (2011) Cytochrome c oxidase: Evolution of control via nuclear subunit addition Biochim Biophys Acta.

2. Tzagoloff A (1982) Mitochondria (Plenum Press, New York).

3. SuhYA, ArnoldRS, LassegueB, ShiJ, XuX, et al. (1999) Cell transformation by the superoxide-generating oxidase. Mox1 Nature 401: 79–82.

4. KirkwoodTB (2008) A systematic look at an old problem. Nature 451: 644–7.

5. DroseS, BrandtU (2008) The mechanism of mitochondrial superoxide production by the cytochrome bc1 complex. J Biol Chem 283: 21649–54.

6. McDonaldA, VanlerbergheG (2004) Branched mitochondrial electron transport in the Animalia: presence of alternative oxidase in several animal phyla. IUBMB Life 56: 333–41.

7. BertholdDA, AnderssonME, NordlundP (2000) New insight into the structure and function of the alternative oxidase. Biochim Biophys Acta 1460: 241–54.

8. BahrJT, BonnerWDJr (1973) Cyanide-insensitive respiration. II. Control of the alternate pathway J Biol Chem 248: 3446–50.

9. CliftonR, MillarAH, WhelanJ (2006) Alternative oxidases in Arabidopsis: a comparative analysis of differential expression in the gene family provides new insights into function of non-phosphorylating bypasses. Biochim Biophys Acta 1757: 730–41.

10. YoshidaK, ShibataM, TerashimaI, NoguchiK (2010) Simultaneous determination of in vivo plastoquinone and ubiquinone redox states by HPLC-based analysis. Plant Cell Physiol 51: 836–41.

11. RustinP, JacobsHT (2009) Respiratory chain alternative enzymes as tools to better understand and counteract respiratory chain deficiencies in human cells and animals. Physiol Plant 137: 362–70.

12. HakkaartGA, DassaEP, JacobsHT, RustinP (2006) Allotopic expression of a mitochondrial alternative oxidase confers cyanide resistance to human cell respiration. EMBO Rep 7: 341–5.

13. DassaEP, DufourE, GoncalvesS, PaupeV, HakkaartGA, et al. (2009) Expression of the alternative oxidase complements cytochrome c oxidase deficiency in human cells. EMBO Mol Med 1: 30–6.

14. Fernandez-AyalaDJ, SanzA, VartiainenS, KemppainenKK, BabusiakM, et al. (2009) Expression of the Ciona intestinalis alternative oxidase (AOX) in Drosophila complements defects in mitochondrial oxidative phosphorylation. Cell Metab 9: 449–60.

15. van LisR, AtteiaA, Mendoza-HernandezG, Gonzalez-HalphenD (2003) Identification of novel mitochondrial protein components of Chlamydomonas reinhardtii. A proteomic approach Plant Physiol 132: 318–30.

16. Lambers H (1985) Respiration in intact plants and tissues. Its regulation and dependence on environmental factors, metabolism and invaded organisms. (Springer-Verlag, Berlin).

17. NelsonL (2006) Acute cyanide toxicity: mechanisms and manifestations. J Emerg Nurs 32: S8–11.

18. MatsukawaK, KamataT, ItoK (2009) Functional expression of plant alternative oxidase decreases antimycin A-induced reactive oxygen species production in human cells. FEBS Lett 583: 148–52.

19. HumphreyDM, ParsonsRB, LudlowZN, RiemenspergerT, EspositoG, et al. (2012) Alternative oxidase rescues mitochondria-mediated dopaminergic cell loss in Drosophila. Hum Mol Genet 21: 2698–712.

20. KayCJ, PalmerJM (1985) Solubilization of the alternative oxidase of cuckoo-pint (Arum maculatum) mitochondria. Stimulation by high concentrations of ions and effects of specific inhibitors. Biochem J 228: 309–18.

21. ChretienD, SlamaA, BriereJJ, MunnichA, RotigA, et al. (2004) Revisiting pitfalls, problems and tentative solutions for assaying mitochondrial respiratory chain complex III in human samples. Curr Med Chem 11: 233–9.

22. RustinP, MoreauF, LanceC (1980) Malate Oxidation in Plant Mitochondria via Malic Enzyme and the Cyanide-insensitive. Electron Transport Pathway Plant Physiol 66: 457–62.

23. PeckmannK, von WillertDJ, MartinCE, HerppichWB (2012) Mitochondrial respiration in ME-CAM, PEPCK-CAM, and C3 succulents: comparative operation of the cytochrome, alternative, and rotenone-resistant pathways. J Exp Bot 63: 2909–19.

24. Costa-de-OliveiraS, Sampaio-MarquesB, BarbosaM, RicardoE, Pina-VazC, et al. (2012) An alternative respiratory pathway on Candida krusei: implications on susceptibility profile and oxidative stress. FEMS Yeast Res 12: 423–9.

25. GuptaKJ, IgamberdievAU, MurLA (2012) NO and ROS homeostasis in mitochondria: a central role for alternative oxidase. New Phytol 195: 1–3.

26. DrogeW (2002) Free radicals in the physiological control of cell function. Physiol Rev 82: 47–95.

27. RustinP (2002) Mitochondria, from cell death to proliferation. Nat Genet 30: 352–3.

28. LarssonNG, RustinP (2001) Animal models for respiratory chain disease. Trends Mol Med 7: 578–81.

29. YaoJ, IrwinRW, ZhaoL, NilsenJ, HamiltonRT, et al. (2009) Mitochondrial bioenergetic deficit precedes Alzheimer's pathology in female mouse model of Alzheimer's disease. Proc Natl Acad Sci U S A 106: 14670–5.

30. RustinP, QueirozC (1985) Changes in oxidative properties of Kalanchoe blossfeldiana leaf mitochondria during development of Crassulacean acid metabolism. Planta 164: 415–422.

31. NoctorG, De PaepeR, FoyerCH (2007) Mitochondrial redox biology and homeostasis in plants. Trends Plant Sci 12: 125–34.

32. Hawkins RI (1993) Good laboratory practice (Royal Society of Chemistry, Cambridge, U.K.).

33. PhilippeS, SarkisC, BarkatsM, MammeriH, LadroueC, et al. (2006) Lentiviral vectors with a defective integrase allow efficient and sustained transgene expression in vitro and in vivo. Proc Natl Acad Sci U S A 103: 17684–9.

34. WittigI, BraunHP, SchaggerH (2006) Blue native. PAGE Nat Protoc 1: 418–28.

35. BenitP, GoncalvesS, Philippe DassaE, BriereJJ, MartinG, et al. (2006) Three spectrophotometric assays for the measurement of the five respiratory chain complexes in minuscule biological samples. Clin Chim Acta 374: 81–86.

36. RustinP, ChretienD, BourgeronT, GerardB, RotigA, et al. (1994) Biochemical and molecular investigations in respiratory chain deficiencies. Clin Chim Acta 228: 35–51.

37. ZhouM, DiwuZ, Panchuk-VoloshinaN, HauglandRP (1997) A stable nonfluorescent derivative of resorufin for the fluorometric determination of trace hydrogen peroxide: applications in detecting the activity of phagocyte NADPH oxidase and other oxidases. Anal Biochem 253: 162–8.

38. Le VercheV, KaindlAM, VerneyC, CsabaZ, PeineauS, et al. (2009) The somatostatin 2A receptor is enriched in migrating neurons during rat and human brain development and stimulates migration and axonal outgrowth. PLoS ONE 4: e5509 doi:10.1371/journal.pone.0005509.

39. DuvillieB, AttaliM, BounacerA, RavassardP, BasmaciogullariA, et al. (2006) The mesenchyme controls the timing of pancreatic beta-cell differentiation. Diabetes 55: 582–9.

40. MatrotB, DurandE, DaugerS, VardonG, GaultierC, et al. (2005) Automatic classification of activity and apneas using whole body plethysmography in newborn mice. J Appl Physiol 98: 365–70.

41. RamanantsoaN, HirschMR, Thoby-BrissonM, DubreuilV, BouvierJ, et al. (2011) Breathing without CO(2) chemosensitivity in conditional Phox2b mutants. The Journal of neuroscience: the official journal of the Society for Neuroscience 31: 12880–8.

42. BénitP, GoncalvesS, DassaEP, BrièreJJ, RustinP (2008) The variability of the Harlequin mouse phenotype resembles that of human mitochondrial-complex I-deficiency syndromes. PLoS ONE 3: e3208 doi:10.1371/journal.pone.0003208.

Štítky
Genetika Reprodukčná medicína

Článok vyšiel v časopise

PLOS Genetics


2013 Číslo 1
Najčítanejšie tento týždeň
Najčítanejšie v tomto čísle
Kurzy

Zvýšte si kvalifikáciu online z pohodlia domova

Získaná hemofilie - Povědomí o nemoci a její diagnostika
nový kurz

Eozinofilní granulomatóza s polyangiitidou
Autori: doc. MUDr. Martina Doubková, Ph.D.

Všetky kurzy
Prihlásenie
Zabudnuté heslo

Zadajte e-mailovú adresu, s ktorou ste vytvárali účet. Budú Vám na ňu zasielané informácie k nastaveniu nového hesla.

Prihlásenie

Nemáte účet?  Registrujte sa

#ADS_BOTTOM_SCRIPTS#