Inhibition of Sarcoplasmic Reticulum $Ca^{2+}$ Uptake by Pyruvate and Fatty Acid in H9c2 Cardiomyocytes: Implications for Diabetic Cardiomyopathy

  • Lee, Eun-Hee (Department of Pharmacology, University of Ulsan College of Medicine) ;
  • Lee, Hye-Kyung (Department of Pharmacology, University of Ulsan College of Medicine) ;
  • Kim, Hae-Won (Department of Pharmacology, University of Ulsan College of Medicine) ;
  • Kim, Young-Hoon (Department of Pharmacology, University of Ulsan College of Medicine)
  • 발행 : 2005.08.21

초록

High extracellular glucose concentration was reported to suppress intracellular $Ca^{2+}$ clearing through altered sarcoplasmic reticulum (SR) function. In the present study, we attempted to elucidate the effects of pyruvate and fatty acid on SR function and reveal the mechanistic link with glucose-induced SR dysfunction. For this purpose, SR $Ca^{2+}$-uptake rate was measured in digitonin-permeabilized H9c2 cardiomyocytes cultured in various conditions. Exposure of these cells to 5 mM pyruvate for 2 days induced a significant suppression of SR $Ca^{2+}$-uptake, which was comparable to the effects of high glucose. These effects were accompanied with decreased glucose utilization. However, pyruvate could not further suppress SR $Ca^{2+}$-uptake in cells cultured in high glucose condition. Enhanced entry of pyruvate into mitochondria by dichloroacetate, an activator of pyruvate dehydrogenase complex, also induced suppression of SR $Ca^{2+}$-uptake, indicating that mitochondrial uptake of pyruvate is required in the SR dysfunction induced by pyruvate or glucose. On the other hand, augmentation of fatty acid supply by adding 0.2 to 0.8 mM oleic acid resulted in a dose-dependent suppression of SR $Ca^{2+}$-uptake. However, these effects were attenuated in high glucose-cultured cells, with no significant changes by oleic acid concentrations lower than 0.4 mM. These results demonstrate that (1) increased pyruvate oxidation is the key mechanism in the SR dysfunction observed in high glucose-cultured cardiomyocytes; (2) exogenous fatty acid also suppresses SR $Ca^{2+}$-uptake, presumably through a mechanism shared by glucose.

키워드

참고문헌

  1. Abdel-aleem S, Nada MA, Aayed-Ahmed M, Hendrickson SC, St Louis J, Walthall HP, Lowe J. Regulation of fatty acid oxidation by acetyl-CoA generated from glucose utilization in isolated myocytes. J Mol Cell Cardiol 28: 825-833, 1996 https://doi.org/10.1006/jmcc.1996.0077
  2. Adams RJ, Cohen DW, Gupte S, Johnson JD, Wallick ET, Wang T, Schwartz A. In vitro effects of palmityl carnitine on cardiac plasma membrane Na+, $K^{+}$ -ATPase and sarcoplasmic reticulum $Ca^{2+}$-ATPase and $Ca^{2+}$ transport. J Biol Chem 254: 12404-12410, 1979
  3. Barry WH, Bridge JHB. Intracellular calcium homeostasis in cardiac myocytes. Circulation 87: 1806-1815, 1993 https://doi.org/10.1161/01.CIR.87.6.1806
  4. Bell DSH. Diabetic cardiomyopathy: A unique entity or a complication of coronary artery disease? Diabetes Care 18: 708-714, 1995 https://doi.org/10.2337/diacare.18.5.708
  5. Bergmeyer HU ed. Methods of Enzymatic Analysis. 3rd ed. Academic Press, New York, 1983
  6. Bouchard RA, Bose B. Influence of experimental diabetes on sarcoplasmic reticulum function in rat ventricular muscle. Am J Physiol 260: H341-H354, 1991
  7. Davidoff AJ, Ren J. Low insulin and high glucose induce abnormal relaxation in cultured adult rat ventricular myocyte. Am J Physiol 272: H159-H167, 1997
  8. Galderisi M, Anderson KM, Wilson PWF, Levy D. Echocardiographic evidence for the existence of a distinct diabetic cardiomyopathy. Am J Cardiol 68: 85-89, 1991 https://doi.org/10.1016/0002-9149(91)90716-X
  9. Ganguly PK, Pierce GN, Dhalla KS, Dhalla NS. Defective sarcoplasmic reticular calcium transport in diabetic cardiomyopathy. Am J Physiol 244: E528-E535, 1983
  10. Hescheler J, Meyer R, Plant S, Krautwurst D, Rosenthal W, Schultz G. Morphological, biochemical, and electrophysiological characterization of a clonal cell (H9c2) line from rat heart. Circ Res 69: 1476-1486, 1991 https://doi.org/10.1161/01.RES.69.6.1476
  11. Kannel WB, McGee DL. Diabetes and cardiovascular disease: The Framingham Study. JAMA 229: 1749-1754, 1974 https://doi.org/10.1001/jama.229.13.1749
  12. Kashiwagi A, Nishio Y, Asahina T, Ikebuchi M, Harada N, Tanaka Y, Takahara N, Hideki T, Obata T, Hidaka H, Saeki Y, Kikkawa R. Pyruvate improves deleterious effects of high glucose pathway and glutathione redox cycle in endothelial cells. Diabetes 46: 520-526, 1997
  13. Lagadic-Gossman D, Buckler KJ, Le Prigent K, Feuvray D. Altered $Ca^{2+}$ handling in ventricular myocytes isolated from diabetic rats. Am J Physiol 270: H1529-H1537, 1996
  14. Lopaschuk GD, Katz S, McNeill JH. The effect of alloxan- and streptozotocin-induced diabetes on calcium transport in rat cardiac sarcoplasmic reticulum. The possible involvement of long chain acylcarnitines. Can J Physiol Pharmacol 61: 439-448, 1983 https://doi.org/10.1139/y83-068
  15. Mahgoub MA, Abd-Elhattah AS. Diabetes mellitus and cardiac function. Mol Cell Biochem 180: 59-64, 1998 https://doi.org/10.1023/A:1006834922035
  16. Makino N, Dhalla KS, Elimban V, Dhalla NS. Sarcolemmal $Ca^{2+}$ transport in streptozotocin-induced diabetic cadiomyopathy in rats. Am J Physiol 253: E202-E207, 1987
  17. Marshall S, Bacote B, Traxinger RR. Discovery of a metabolic pathway mediating glucose-induced desensitization of the glucose transport system: Role of hexosamine biosynthesis in the induction of insulin resistance. J Biol Chem 266: 4706-4712, 1991
  18. Martonosi A, Feretos R. Sarcoplasmic reticulum: the uptake of $Ca^{2+}$ by sarcoplasmic reticulum fragments. J Biol Chem 239: 648- 658, 1964
  19. Mezzetti A, Cipollone F, Cuccurullo F. Oxidative stress and cardiovascular complications in diabetes: isoprostanes as new markers on an old paradigm. Cardiovasc Res 47: 475-488, 1997 https://doi.org/10.1016/S0008-6363(00)00118-8
  20. Neermann J, Wagner R. Comparative analysis of glucose and glutamine metabolism in transformed mammalian cell lines, insect and primary liver cells. J Cell Physiol 166: 152-169, 1996 https://doi.org/10.1002/(SICI)1097-4652(199601)166:1<152::AID-JCP18>3.0.CO;2-H
  21. Nishio Y, Kashiwagi A, Kida Y, Kodama M, Abe N, Saeki Y, Shigeta Y. Deficiency of cardiac $\beta$-adrenergic receptor in streptozotocininduced diabetic rats. Diabetes 37: 1181-1187, 1988 https://doi.org/10.2337/diabetes.37.9.1181
  22. Palumbo PJ, Elveback CR, Conolly DC. Coronary artery disease and congestive heart failure in the diabetic: Epidemiological aspects. The Rochester Diabetic Project. In: RC Scott ed, Clinical Cardiology and Diabetes. Futura, New York, p 13, 1981
  23. Randle PJ, Garland PB, Hales CN, Newholme EA. The glucosefatty acid cycle: its role in insulin sensitivity and the metabolic disturbance of diabetes mellitus. Lancet 1: 785-789, 1963
  24. Regan TJ, Wu CF, Yeh CK, Oldewurtel HA, Haider B. Myocardial composition and function in diabetes: the effects of chronic insulin use. Circ Res 49: 1268-1277, 1981 https://doi.org/10.1161/01.RES.49.6.1268
  25. Ren J, Gintant GA, Miller RE, Davidoff AJ. High extracellular glucose impairs cardiac E-C coupling in a glycosylation-dependant manner. Am J Physiol 273: H2876-H2883, 1997
  26. Robertson S, Potter JD. The regulation of free $Ca^{2+}$ ion concentration by metal chelators. In: Schwartz A ed, Methods in Pharmacology. 1st ed. Plenum, New York, p 63-75, 1984
  27. Rodrigues B, McNeill JH. The diabetic heart: metabolic causes for the development of a cardiomyopathy. Cardiovasc Res 26: 913-922, 1992 https://doi.org/10.1093/cvr/26.10.913
  28. Saddik M, Gamble J, Witter LA, Lopaschuk GD. Acetyl-CoA carboxylase regulation of fatty acid oxidation in the heart. J Biol Chem 239: 43-49, 1993
  29. Shehadeh A, Regan TJ. Cardiac consequence of diabetes mellitus. Clin Cardiol 18: 301-305, 1995 https://doi.org/10.1002/clc.4960180604
  30. Sipido KR, Marban E. L-type calcium channels, potassium channels, and novel nonspecific cation channels in a clonal muscle cell line derived from embryonic rat ventricle. Circ Res 69: 1487-1499, 1991 https://doi.org/10.1161/01.RES.69.6.1487
  31. Szalai G, Csordas G, Hantash BM, Thomas AP, Hajnoczky G. Calcium signal transmission between ryanodine receptors and mitochondria. J Biol Chem 275: 15305-15313, 2000 https://doi.org/10.1074/jbc.275.20.15305
  32. Wimsatt DK, Hohl CM, Brierley GP, Altschuld RA. Calcium accumulation and release by the sarcoplasmic reticulum of digitonin- lysed adult mammalian ventricular cardiomyocytes. J Biol Chem 265: 14849-14857, 1990
  33. Zahabi A, Deschepper CF. Long-chain fatty acids modify hyertrophic responses of cultured primary cardiomyocytes. J Lipid Res 42: 1325-1330, 2001