Abstract
The permeability transition pore (PTP) is a mitochondrial inner membrane channel involved in cell death. The inhibition of PTP opening has been proved to be an effective strategy to prevent cell death induced by oxidative stress. Several ubiquinone analogs are known to powerfully inhibit PTP opening with an effect depending on the studied cell line. Here, we have studied the effects of ubiquinone 0 (Ub0), ubiquinone 5 (Ub5) and ubiquinone 10 (Ub10) on PTP regulation, H2O2 production and cell viability in U937 cells. We found that Ub0 induced both PTP opening and H2O2 production. Ub5 did not regulate PTP opening yet induced H2O2 production. Ub10 potently inhibited PTP opening yet induced H2O2 production. Both Ub0 and Ub5 induced cell death, whereas Ub10 was not toxic. Moreover, Ub10 prevented tert-butyl hydroperoxide-induced PTP opening and subsequent cell death. We conclude that PTP-inhibitor ubiquinone analogs are able to prevent PTP opening-induced cell death only if they are not toxic per se, which is the case when they have no or low pro-oxidant activity.
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References
Armstrong JS et al (2003) J Biol Chem 278:49079–49084
Baines CP et al (2005) Nature 434:658–662
Batandier C et al (2004) J Biol Chem 279:17197–17204
Bellomo G et al (1990) Free Radic Res Commun 8:391–399
Chauvin C et al (2001) J Biol Chem 276:41394–41398
Crompton M (2000) J Physiol 529 Pt 1:11–21
Devun F et al (2010) PLoS One 5:e11792
D’Odorico A et al (1997) Carcinogenesis 18:43–46
Dumas JF et al (2009) J Biol Chem 284:15117–15125
Fato R et al (2008) Biofactors 32:31–39
Fontaine E, Bernardi P (1999) J Bioenerg Biomembr 31:335–345
Fontaine E et al (1998) J Biol Chem 273:25734–25740
Giacomello M et al (2007) Cell Death Differ 14:1267–1274
Ichas F, Mazat JP (1998) Biochim Biophys Acta 1366:33–50
Kagan T et al (1999) Ann N Y Acad Sci 887:31–47
Kelso GF et al (2002) Ann N Y Acad Sci 959:263–274
Kroemer G, Reed JC (2000) Nature Med 6:513–519
Kushnareva Y, Newmeyer DD (2010) Ann N Y Acad Sci 1201:50–57
Miyazaki I, Asanuma M (2009) Neurochem Res 34:698–706
Nakagawa T et al (2005) Nature 434:652–658
Petronilli V et al (1999) Biophys J 76:725–734
Piot C et al (2008) N Engl J Med 359:473–481
Schinzel AC et al (2005) Proc Natl Acad Sci USA 102:12005–12010
Seung SA et al (1998) Chem Biol Interact 113:133–144
Shivaram KN et al (1998) Free Radic Biol Med 25:480–492
Tait SW, Green DR (2010) Nat Rev Mol Cell Biol 11:621–632
Walter L et al (2000) J Biol Chem 275:29521–29527
Walter L et al (2002) Free Radic Res 36:405–412
Yerushalmi B et al (2001) Hepatology 33:616–626
Zoratti M, Szabo I (1995) Biochim Biophys Acta 1241:139–176
Zorov DB et al (2000) J Exp Med 192:1001–1014
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Deceased: Prof Xavier Leverve (1950–2010) in memoriam.
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Belliere, J., Devun, F., Cottet-Rousselle, C. et al. Prerequisites for ubiquinone analogs to prevent mitochondrial permeability transition-induced cell death. J Bioenerg Biomembr 44, 207–212 (2012). https://doi.org/10.1007/s10863-012-9406-7
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DOI: https://doi.org/10.1007/s10863-012-9406-7