Abstract
Adenosine, a purine nucleoside, is ubiquitous in the body, and is a critical component of ATP. Its concentration jumps 100-fold during periods of oxygen depletion and ischemia. There are four adenosine receptors: A1 and A3 coupled to Gi/o and the high-affinity A2A and low-affinity A2B coupled to Gs. Adenosine is one of three autacoids released by ischemic tissue which are important triggers of ischemic preconditioning (IPC). It is the A1 and to some extent A3 receptors which participate in the intracellular signaling that triggers cardioprotection. Unlike bradykinin and opioids, the other two autacoids, adenosine is not dependent on opening of mitochondrial KATP channels or release of reactive oxygen species (ROS), but rather activates phospholipase C and/or protein kinase C (PKC) directly. Another signaling cascade at reperfusion involves activated PKC which initiates binding to and activation of an A2 adenosine receptor that we believe is the A2B. Although the latter is the low-affinity receptor, its interaction with PKC increases its affinity and makes it responsive to the accumulated tissue adenosine. A2B agonists, but not adenosine or A1 agonists, infused at reperfusion can initiate this second signaling cascade and mimic preconditioning’s protection. The same A2B receptors are critical for postconditioning’s protection. Thus adenosine is both an important trigger and a mediator of cardioprotection.
Similar content being viewed by others
References
Auchampach JA, Gross GJ (1993) Adenosine A1 receptors, KATP channels, and ischemic preconditioning in dogs. Am J Physiol 264:H1327–H1336
Auchampach JA, Jin X, Moore J, Wan TC, Kreckler LM, Ge Z-D, Narayanan J, Whalley E, Kiesman W, Ticho B, Smits G, Gross GJ (2004) Comparison of three different A1 adenosine receptor antagonists on infarct size and multiple cycle ischemic preconditioning in anesthetized dogs. J Pharmacol Exp Ther 308:846–856
Auchampach JA, Rizvi A, Qiu Y, Tang X-L, Maldonado C, Teschner S, Bolli R (1997) Selective activation of A3 adenosine receptors with N 6-(3-iodobenzyl) adenosine-5′-N-methyluronamide protects against myocardial stunning and infarction without hemodynamic changes in conscious rabbits. Circ Res 80:800–809
Baxter GF, Hale SL, Miki T, Kloner RA, Cohen MV, Downey JM, Yellon DM (2000) Adenosine A1 agonist at reperfusion trial (AART): results of a three-center, blinded, randomized, controlled experimental infarct study. Cardiovasc Drugs Ther 14:607–614
Billah MM, Anthes JC (1990) The regulation and cellular functions of phosphatidylcholine hydrolysis. Biochem J 269:281–291
Bolli R, Dawn B, Xuan Y-T (2003) Role of the JAK-STAT pathway in protection against myocardial ischemia/reperfusion injury. Trends Cardiovasc Med 13:72–79
Brooks G, Hearse DJ (1996) Role of protein kinase C in ischemic preconditioning: player or spectator? Circ Res 79:627–630
Budde JM, Velez DA, Zhao Z-Q, Clark KL, Morris CD, Muraki S, Guyton RA, Vinten-Johansen J (2000) Comparative study of AMP579 and adenosine in inhibition of neutrophil-mediated vascular and myocardial injury during 24 h of reperfusion. Cardiovasc Res 47:294–305
Chen W, Glasgow W, Murphy E, Steenbergen C (1999) Lipoxygenase metabolism of arachidonic acid in ischemic preconditioning and PKC-induced protection in heart. Am J Physiol 276:H2094–H2101
Cohen MV, Philipp S, Krieg T, Cui L, Kuno A, Solodushko V, Downey JM (2007) Preconditioning-mimetics bradykinin and DADLE activate PI3-kinase through divergent pathways. J Mol Cell Cardiol 42:842–851
Cohen MV, Yang X-M, Downey JM (2007) The pH hypothesis of postconditioning: staccato reperfusion reintroduces oxygen and perpetuates myocardial acidosis. Circulation 115:1895–1903
Cohen MV, Yang X-M, Liu GS, Heusch G, Downey JM (2001) Acetylcholine, bradykinin, opioids, and phenylephrine, but not adenosine, trigger preconditioning by generating free radicals and opening mitochondrial KATP channels. Circ Res 89:273–278
Costa ADT, Garlid KD, West IC, Lincoln TM, Downey JM, Cohen MV, Critz SD (2005) Protein kinase G transmits the cardioprotective signal from cytosol to mitochondria. Circ Res 97:329–336
Deussen A, Brand M, Pexa A, Weichsel J (2007) Metabolic coronary flow regulation—current concepts. Basic Res Cardiol 101:453–464
Deussen A, Stappert M, Schäfer S, Kelm M (1999) Quantification of extracellular and intracellular adenosine production: understanding the transmembranous concentration gradient. Circulation 99:2041–2047
Eaton P, Fuller W, Bell JR, Shattock MJ (2001) αB crystallin translocation and phosphorylation: signal transduction pathways and preconditioning in the isolated rat heart. J Mol Cell Cardiol 33:1659–1671
Eckle T, Krahn T, Grenz A, Köhler D, Mittelbronn M, Ledent C, Jacobson MA, Osswald H, Thompson LF, Unertl K, Eltzschig HK (2007) Cardioprotection by ecto-5′-nucleotidase (CD73) and A2B adenosine receptors. Circulation 115:1581–1590
Förster K, Paul I, Solenkova N, Staudt A, Cohen MV, Downey JM, Felix SB, Krieg T (2006) NECA at reperfusion limits infarction and inhibits formation of the mitochondrial permeability transition pore by activating p70S6 kinase. Basic Res Cardiol 101:319–326
Fredholm BB, Ijzerman AP, Jacobson KA, Klotz K-N, Linden J (2001) International Union of Pharmacology. XXV. Nomenclature and classification of adenosine receptors. Pharmacol Rev 53:527–552
Goto M, Liu Y, Yang X-M, Ardell JL, Cohen MV, Downey JM (1995) Role of bradykinin in protection of ischemic preconditioning in rabbit hearts. Circ Res 77:611–621
Goto M, Miura T, Iliodoromitis EK, O’Leary EL, Ishimoto R, Yellon DM, Iimura O (1991) Adenosine infusion during early reperfusion failed to limit myocardial infarct size in a collateral deficient species. Cardiovasc Res 25:943–949
Gres P, Schulz R, Jansen J, Umschlag C, Heusch G (2002) Involvement of endogenous prostaglandins in ischemic preconditioning in pigs. Cardiovasc Res 55:626–632
Griffiths EJ, Halestrap AP (1995) Mitochondrial non-specific pores remain closed during cardiac ischaemia, but open upon reperfusion. Biochem J 307:93–98
Guo Y, Bolli R, Bao W, Wu W-J, Black RG Jr, Murphree SS, Salvatore CA, Jacobson MA, Auchampach JA (2001) Targeted deletion of the A3 adenosine receptor confers resistance to myocardial ischemic injury and does not prevent early preconditioning. J Mol Cell Cardiol 33:825–830
Hattori R, Maulik N, Otani H, Zhu L, Cordis G, Engelman RM, Siddiqui MAQ, Das DK (2001) Role of STAT3 in ischemic preconditioning. J Mol Cell Cardiol 33:1929–1936
Hausenloy DJ, Maddock HL, Baxter GF, Yellon DM (2002) Inhibiting mitochondrial permeability transition pore opening: a new paradigm for myocardial preconditioning? Cardiovasc Res 55:534–543
Hausenloy DJ, Tsang A, Mocanu MM, Yellon DM (2005) Ischemic preconditioning protects by activating prosurvival kinases at reperfusion. Am J Physiol 288:H971–H976
Hausenloy DJ, Wynne AM, Yellon DM (2007) Ischemic preconditioning targets the reperfusion phase. Basic Res Cardiol 102:445–452
Hausenloy DJ, Yellon DM, Mani-Babu S, Duchen MR (2004) Preconditioning protects by inhibiting the mitochondrial permeability transition. Am J Physiol 287:H841–H849
Headrick JP (1996) Ischemic preconditioning: bioenergetic and metabolic changes and the role of endogenous adenosine. J Mol Cell Cardiol 28:1227–1240
Heinzel FR, Luo Y, Li X, Boengler K, Buechert A, Garcia-Dorado D, Di Lisa F, Schulz R, Heusch G (2005) Impairment of diazoxide-induced formation of reactive oxygen species and loss of cardioprotection in connexin 43 deficient mice. Circ Res 97:583–586
Heusch G (2004) Postconditioning: old wine in a new bottle? J Am Coll Cardiol 44:1111–1112
Inagaki K, Begley R, Ikeno F, Mochly-Rosen D (2005) Cardioprotection by ε-protein kinase C activation from ischemia: continuous delivery and antiarrhythmic effect of an ε-protein kinase C-activating peptide. Circulation 111:44–50
Juhaszova M, Zorov DB, Kim S-H, Pepe S, Fu Q, Fishbein KW, Ziman BD, Wang S, Ytrehus K, Antos CL, Olson EN, Sollott SJ (2004) Glycogen synthase kinase-3β mediates convergence of protection signaling to inhibit the mitochondrial permeability transition pore. J Clin Invest 113:1535–1549
Kilpatrick EL, Narayan P, Mentzer RM Jr, Lasley RD (2002) Cardiac myocyte adenosine A2a receptor activation fails to alter cAMP or contractility: role of receptor localization. Am J Physiol 282:H1035–H1040
Kin H, Zatta AJ, Lofye MT, Amerson BS, Halkos ME, Kerendi F, Zhao Z-Q, Guyton RA, Headrick JP, Vinten-Johansen J (2005) Postconditioning reduces infarct size via adenosine receptor activation by endogenous adenosine. Cardiovasc Res 67:124–133
Kis A, Baxter GF, Yellon DM (2003) Limitation of myocardial reperfusion injury by AMP579, an adenosine A1/A2A receptor agonist: role of A2A receptor and Erk1/2. Cardiovasc Drugs Ther 17:415–425
Kitakaze M, Funaya H, Minamino T, Node K, Sato H, Ueda Y, Okuyama Y, Kuzuya T, Hori M, Yoshida K-i (1997) Role of protein kinase C-α in activation of ecto-5′-nucleotidase in the preconditioned canine myocardium. Biochem Biophys Res Commun 239:171–175
Klotz K-N (2000) Adenosine receptors and their ligands. Naunyn-Schmiedeberg’s Arch Pharmacol 362:382–391
Kohl C, Linck B, Schmitz W, Scholz H, Scholz J, Tóth M (1990) Effects of carbachol and (-)-N 6-phenylisopropyladenosine on myocardial inositol phosphate content and force of contraction. Br J Pharmacol 101:829–834
Korichneva I, Hoyos B, Chua R, Levi E, Hammerling U (2002) Zinc release from protein kinase C as the common event during activation by lipid second messenger or reactive oxygen. J Biol Chem 277:44327–44331
Krieg T, Cui L, Qin Q, Cohen MV, Downey JM (2004) Mitochondrial ROS generation following acetylcholine-induced EGF receptor transactivation requires metalloproteinase cleavage of proHB-EGF. J Mol Cell Cardiol 36:435–443
Krieg T, Landsberger M, Alexeyev MF, Felix SB, Cohen MV, Downey JM (2003) Activation of Akt is essential for acetylcholine to trigger generation of oxygen free radicals. Cardiovasc Res 58:196–202
Krieg T, Qin Q, McIntosh EC, Cohen MV, Downey JM (2002) ACh and adenosine activate PI3-kinase in rabbit hearts through transactivation of receptor tyrosine kinases. Am J Physiol 283:H2322–H2330
Krieg T, Qin Q, Philipp S, Alexeyev MF, Cohen MV, Downey JM (2004) Acetylcholine and bradykinin trigger preconditioning in the heart through a pathway that includes Akt and NOS. Am J Physiol 287:H2606–H2611
Kuno A, Critz SD, Cui L, Solodushko V, Yang X-M, Krahn T, Albrecht B, Philipp S, Cohen MV, Downey JM (2007) Protein kinase C protects preconditioned rabbit hearts by increasing sensitivity of adenosine A2b-dependent signaling during early reperfusion. J Mol Cell Cardiol 43:262–271
Lankford AR, Yang J-N, Rose’Meyer R, French BA, Matherne GP, Fredholm BB, Yang Z (2006) Effect of modulating cardiac A1 adenosine receptor expression on protection with ischemic preconditioning. Am J Physiol 290:H1469–H1473
Lee JE, Bokoch G, Liang BT (2001) A novel cardioprotective role of RhoA: new signaling mechanism for adenosine. FASEB J 15:1886–1894
Linden J, Thai T, Figler H, Jin X, Robeva AS (1999) Characterization of human A2B adenosine receptors: radioligand binding, western blotting, and coupling to Gq in human embryonic kidney 293 cells and HMC-1 mast cells. Mol Pharmacol 56:705–713
Liu GS, Richards SC, Olsson RA, Mullane K, Walsh RS, Downey JM (1994) Evidence that the adenosine A3 receptor may mediate the protection afforded by preconditioning in the isolated rabbit heart. Cardiovasc Res 28:1057–1061
Liu GS, Thornton J, Van Winkle DM, Stanley AWH, Olsson RA, Downey JM (1991) Protection against infarction afforded by preconditioning is mediated by A1 adenosine receptors in rabbit heart. Circulation 84:350–356
Liu Y, Downey JM (1992) Ischemic preconditioning protects against infarction in rat heart. Am J Physiol 263:H1107–H1112
Mackay K, Mochly-Rosen D (1999) An inhibitor of p38 mitogen-activated protein kinase protects neonatal cardiac myocytes from ischemia. J Biol Chem 274:6272–6279
Mahaffey KW, Puma JA, Barbagelata NA, DiCarli MF, Leesar MA, Browne KF, Eisenberg PR, Bolli R, Casas AC, Molina-Viamonte V, Orlandi C, Blevins R, Gibbons RJ, Califf RM, Granger CB (1999) Adenosine as an adjunct to thrombolytic therapy for actue myocardial infarction. Results of a multicenter, randomized, placebo-controlled trial: the Acute Myocardial Infarction STudy of ADenosine (AMISTAD) Trial. J Am Coll Cardiol 34:1711–1720
Maulik N, Watanabe M, Zu Y-L, Huang C-K, Cordis GA, Schley JA, Das DK (1996) Ischemic preconditioning triggers the activation of MAP kinases and MAPKAP kinase 2 in rat hearts. FEBS Lett 396:233–237
McVey MJ, Smits GJ, Cox BF, Kitzen JM, Clark KL, Perrone MH (1999) Cardiovascular pharmacology of the adenosine A1/A2-receptor agonist AMP 579: coronary hemodynamic and cardioprotective effects in the canine myocardium. J Cardiovasc Pharmacol 33:703–710
Miki T, Cohen MV, Downey JM (1998) Opioid receptor contributes to ischemic preconditioning through protein kinase C activation in rabbits. Mol Cell Biochem 186:3–12
Mocanu MM, Baxter GF, Yue Y, Critz SD, Yellon DM (2000) The p38 MAPK inhibitor, SB203580, abrogates ischaemic preconditioning in rat heart but timing of administration is critical. Basic Res Cardiol 95:472–478
Mubagwa K, Flameng W (2001) Adenosine, adenosine receptors and myocardial protection: an updated overview. Cardiovasc Res 52:25–39
Murry CE, Jennings RB, Reimer KA (1986) Preconditioning with ischemia: a delay of lethal cell injury in ischemic myocardium. Circulation 74:1124–1136
Mykytenko J, Kerendi F, Reeves JG, Kin H, Zatta AJ, Jiang R, Guyton RA, Vinten-Johansen J, Zhao Z-Q (2007) Long-term inhibition of myocardial infarction by postconditioning during reperfusion. Basic Res Cardiol 102:90–100
Nakano A, Cohen MV, Critz S, Downey JM (2000) SB 203580, an inhibitor of p38 MAPK, abolishes infarct-limiting effect of ischemic preconditioning in isolated rabbit hearts. Basic Res Cardiol 95:466–471
Napoli C, Liguori A, Chiariello M, Di Ieso N, Condorelli M, Ambrosio G (1998) New-onset angina preceding acute myocardial infarction is associated with improved contractile recovery after thrombolysis. Eur Heart J 19:411–419
Natarajan V, Taher MM, Roehm B, Parinandi NL, Schmid HHO, Kiss Z, Garcia JGN (1993) Activation of endothelial cell phospholipase D by hydrogen peroxide and fatty acid hydroperoxide. J Biol Chem 268:930–937
Norton ED, Jackson EK, Turner MB, Virmani R, Forman MB (1992) The effects of intravenous infusions of selective adenosine A1-receptor and A2-receptor agonists on myocardial reperfusion injury. Am Heart J 123:332–338
Norton ED, Jackson EK, Virmani R, Forman MB (1991) Effect of intravenous adenosine on myocardial reperfusion injury in a model with low myocardial collateral blood flow. Am Heart J 122:1283–1291
Olafsson B, Forman MB, Puett DW, Pou A, Cates CU, Friesinger GC, Virmani R (1987) Reduction of reperfusion injury in the canine preparation by intracoronary adenosine: importance of the endothelium and the no-reflow phenomenon. Circulation 76:1135–1145
Oldenburg O, Qin Q, Krieg T, Yang X-M, Philipp S, Critz SD, Cohen MV, Downey JM (2004) Bradykinin induces mitochondrial ROS generation via NO, cGMP, PKG, and mitoKATP channel opening and leads to cardioprotection. Am J Physiol 286:H468–H476
Penna C, Rastaldo R, Mancardi D, Raimondo S, Cappello S, Gattullo D, Losano G, Pagliaro P (2006) Post-conditioning induced cardioprotection requires signaling through a redox-sensitive mechanism, mitochondrial ATP-sensitive K+ channel and protein kinase C activation. Basic Res Cardiol 101:180–189
Philipp S, Yang X-M, Cui L, Davis AM, Downey JM, Cohen MV (2006) Postconditioning protects rabbit hearts through a protein kinase C-adenosine A2b receptor cascade. Cardiovasc Res 70:308–314
Ping P, Zhang J, Qiu Y, Tang X-L, Manchikalapudi S, Cao X, Bolli R (1997) Ischemic preconditioning induces selective translocation of protein kinase C isoforms ε and η in the heart of conscious rabbits without subcellular redistribution of total protein kinase C activity. Circ Res 81:404–414
Pitarys CJ II, Virmani R, Vildibill HD Jr, Jackson EK, Forman MB (1991) Reduction of myocardial reperfusion injury by intravenous adenosine administered during the early reperfusion period. Circulation 83:237–247
Qin Q, Yang X-M, Cui L, Critz SD, Cohen MV, Browner NC, Lincoln TM, Downey JM (2004) Exogenous NO triggers preconditioning via a cGMP- and mitoKATP-dependent mechanism. Am J Physiol 287:H712–H718
Ross AM, Gibbons RJ, Stone GW, Kloner RA, Alexander RW (2005) A randomized, double-blinded, placebo-controlled multicenter trial of adenosine as an adjunct to reperfusion in the treatment of acute myocardial infarction (AMISTAD-II). J Am Coll Cardiol 45:1775–1780
Schneider S, Chen W, Hou J, Steenbergen C, Murphy E (2001) Inhibition of p38 MAPK α/β reduces ischemic injury and does not block protective effects of preconditioning. Am J Physiol 280:H499–H508
Schulte G, Fredholm BB (2003) Signalling from adenosine receptors to mitogen-activated protein kinases. Cell Signal 15:813–827
Schultz JEJ, Hsu AK, Gross GJ (1998) Ischemic preconditioning in the intact rat heart is mediated by δ1- but not μ- or κ-opioid receptors. Circulation 97:1282–1289
Schultz JEJ, Rose E, Yao Z, Gross GJ (1995) Evidence for involvement of opioid receptors in ischemic preconditioning in rat hearts. Am J Physiol 268:H2157–H2161
Schulz R, Belosjorow S, Gres P, Jansen J, Michel MC, Heusch G (2002) p38 MAP kinase is a mediator of ischemic preconditioning in pigs. Cardiovasc Res 55:690–700
Schulz R, Gres P, Skyschally A, Duschin A, Belosjorow S, Konietzka I, Heusch G (2003) Ischemic preconditioning preserves connexin 43 phosphorylation during sustained ischemia in pig hearts in vivo. FASEB J 17:1355–1357
Schulz R, Post H, Vahlhaus C, Heusch G (1998) Ischemic preconditioning in pigs: a graded phenomenon. Its relation to adenosine and bradykinin. Circulation 98:1022–1029
Schulz R, Rose J, Post H, Heusch G (1995) Involvement of endogenous adenosine in ischaemic preconditioning in swine. Pflugers Arch 430:273–282
Schwiebert EH, Karlson KH, Friedman PA, Dietl P, Spielman WS, Stanton BA (1992) Adenosine regulates a chloride channel via protein kinase C and a G protein in a rabbit cortical collecting duct cell line. J Clin Invest 89:834–841
Smits GJ, McVey M, Cox BF, Perrone MH, Clark KL (1998) Cardioprotective effects of the novel adenosine A1/A2 receptor agonist AMP 579 in a porcine model of myocardial infarction. J Pharmacol Exp Ther 286:611–618
Solenkova NV, Solodushko V, Cohen MV, Downey JM (2006) Endogenous adenosine protects preconditioned heart during early minutes of reperfusion by activating Akt. Am J Physiol 290:H441–H449
Staat P, Rioufol G, Piot C, Cottin Y, Cung TT, L’Huillier I, Aupetit J-F, Bonnefoy E, Finet G, André-Fouët X, Ovize M (2005) Postconditioning the human heart. Circulation 112:2143–2148
Thornton JD, Liu GS, Olsson RA, Downey JM (1992) Intravenous pretreatment with A1-selective adenosine analogues protects the heart against infarction. Circulation 85:659–665
Tissier R, Cohen MV, Downey JM (2007) Protecting the acutely ischemic myocardium beyond reperfusion therapies: are we any closer to realizing the dream of infarct size elimination? Arch Mal Coeur Vaiss (in press)
Todd J, Zhao Z-Q, Williams MW, Sato H, Van Wylen DGL, Vinten-Johansen J (1996) Intravascular adenosine at reperfusion reduces infarct size and neutrophil adherence. Ann Thorac Surg 62:1364–1372
Tsuchida A, Miura T, Miki T, Shimamoto K, Iimura O (1992) Role of adenosine receptor activation in myocardial infarct size limitation by ischaemic preconditioning. Cardiovasc Res 26:456–461
Turcato S, Turnbull L, Wang G-Y, Honbo N, Simpson PC, Karliner JS, Baker AJ (2006) Ischemic preconditioning depends on age and gender. Basic Res Cardiol 101:235–243
Vander Heide RS, Reimer KA (1996) Effect of adenosine therapy at reperfusion on myocardial infarct size in dogs. Cardiovasc Res 31:711–718
VanWinkle DM, Chien GL, Wolff RA, Soifer BE, Kuzume K, Davis RF (1994) Cardioprotection provided by adenosine receptor activation is abolished by blockade of the KATP channel. Am J Physiol 266:H829–H839
Velasco CE, Turner M, Cobb MA, Virmani R, Forman MB (1991) Myocardial reperfusion injury in the canine model after 40 minutes of ischemia: effect of intracoronary adenosine. Am Heart J 122:1561–1570
Walker DM, Walker JM, Pugsley WB, Pattison CW, Yellon DM (1995) Preconditioning in isolated superfused human muscle. J Mol Cell Cardiol 27:1349–1357
Wall TM, Sheehy R, Hartman JC (1994) Role of bradykinin in myocardial preconditioning. J Pharmacol Exp Ther 270:681–689
Wang Y, Ashraf M (1998) Activation of α1-adrenergic receptor during Ca2+ pre-conditioning elicits strong protection against Ca2+ overload injury via protein kinase C signaling pathway. J Mol Cell Cardiol 30:2423–2435
Weinbrenner C, Liu G-S, Cohen MV, Downey JM (1997) Phosphorylation of tyrosine 182 of p38 mitogen-activated protein kinase correlates with the protection of preconditioning in the rabbit heart. J Mol Cell Cardiol 29:2383–2391
Wright DT, Fischer BM, Li C, Rochelle LG, Akley NJ, Adler KB (1996) Oxidant stress stimulates mucin secretion and PLC in airway epithelium via a nitric oxide-dependent mechanism. Am J Physiol 271:L854–L861
Xu Z, Cohen MV, Downey JM, Vanden Hoek TL, Yao Z (2001) Attenuation of oxidant stress during reoxygenation by AMP 579 in cardiomyocytes. Am J Physiol 281:H2585–H2589
Xu Z, Downey JM, Cohen MV (2001) AMP 579 reduces contracture and limits infarction in rabbit heart by activating adenosine A2 receptors. J Cardiovasc Pharmacol 38:474–481
Xu Z, Downey JM, Cohen MV (2003) Timing and duration of administration are crucial for antiinfarct effect of AMP 579 infused at reperfusion in rabbit heart. Heart Dis 5:368–371
Xu Z, Yang X-M, Cohen MV, Neumann T, Heusch G, Downey JM (2000) Limitation of infarct size in rabbit hearts by the novel adenosine receptor agonist AMP 579 administered at reperfusion. J Mol Cell Cardiol 32:2339–2347
Yang X-M, Krieg T, Cui L, Downey JM, Cohen MV (2004) NECA and bradykinin at reperfusion reduce infarction in rabbit hearts by signaling through PI3K, ERK, and NO. J Mol Cell Cardiol 36:411–421
Yang X-M, Philipp S, Downey JM, Cohen MV (2005) Postconditioning’s protection is not dependent on circulating blood factors or cells but involves adenosine receptors and requires PI3-kinase and guanylyl cyclase activation. Basic Res Cardiol 100:57–63
Yang X-M, Proctor JB, Cui L, Krieg T, Downey JM, Cohen MV (2004) Multiple, brief coronary occlusions during early reperfusion protect rabbit hearts by targeting cell signaling pathways. J Am Coll Cardiol 44:1103–1110
Yang X-M, Sato H, Downey JM, Cohen MV (1997) Protection of ischemic preconditioning is dependent upon a critical timing sequence of protein kinase C activation. J Mol Cell Cardiol 29:991–999
Yang Z, Day Y-J, Toufektsian M-C, Ramos SI, Marshall M, Wang X-Q, French BA, Linden J (2005) Infarct-sparing effect of A2A-adenosine receptor activation is due primarily to its action on lymphocytes. Circulation 111:2190–2197
Ytrehus K, Liu Y, Downey JM (1994) Preconditioning protects ischemic rabbit heart by protein kinase C activation. Am J Physiol 266:H1145–H1152
Ytrehus K, Liu Y, Tsuchida A, Miura T, Liu GS, Yang X-M, Herbert D, Cohen MV, Downey JM (1994) Rat and rabbit heart infarction: effects of anesthesia, perfusate, risk zone, and method of infarct sizing. Am J Physiol 267:H2383–H2390
Zhao J, Renner O, Wightman L, Sugden PH, Stewart L, Miller AD, Latchman DS, Marber MS (1998) The expression of constitutively active isotopes of protein kinase C to investigate preconditioning. J Biol Chem 273:23072–23079
Zhao Z-Q, Budde JM, Morris C, Wang N-P, Velez DA, Muraki S, Guyton RA, Vinten-Johansen J (2001) Adenosine attenuates reperfusion-induced apoptotic cell death by modulating expression of Bcl-2 and Bax proteins. J Mol Cell Cardiol 33:57–68
Zhao Z-Q, Corvera JS, Halkos ME, Kerendi F, Wang N-P, Guyton RA, Vinten-Johansen J (2003) Inhibition of myocardial injury by ischemic postconditioning during reperfusion: comparison with ischemic preconditioning. Am J Physiol 285:H579–H588
Zhao Z-Q, Nakamura M, Wang N-P, Velez DA, Hewan-Lowe KO, Guyton RA, Vinten-Johansen J (2000) Dynamic progression of contractile and endothelial dysfunction and infarct extension in the late phase of reperfusion. J Surg Res 94:133–144
Zhao Z-Q, Nakamura M, Wang N-P, Wilcox JN, Shearer S, Guyton RA, Vinten-Johansen J (1999) Administration of adenosine during reperfusion reduces injury of vascular endothelium and death of myocytes. Coron Artery Dis 10:617–628
Zhao Z-Q, Todd JC, Sato H, Ma X-L, Vinten-Johansen J (1997) Adenosine inhibition of neutrophil damage during reperfusion does not involve KATP-channel activation. Am J Physiol 273:H1677–H1687
Author information
Authors and Affiliations
Corresponding author
Additional information
Returned for 1. revision: 17 September 2007 1. Revision received: 4 October 2007
Returned for 2. revision: 11 October 2007 2. Revision received: 16 October 2007
Rights and permissions
About this article
Cite this article
Cohen, M.V., Downey, J.M. Adenosine: trigger and mediator of cardioprotection. Basic Res Cardiol 103, 203–215 (2008). https://doi.org/10.1007/s00395-007-0687-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00395-007-0687-7