1932

Abstract

My graduate and postdoctoral training in metabolism and enzymology eventually led me to study the short- and long-term regulation of glucose and lipid metabolism. In the early phase of my career, my trainees and I identified, purified, and characterized a variety of phosphofructokinase enzymes from mammalian tissues. These studies led us to discover fructose 2,6-P, the most potent activator of phosphofructokinase and glycolysis. The discovery of fructose 2,6-P led to the identification and characterization of the tissue-specific bifunctional enzyme 6-phosphofructo-2-kinase:fructose 2,6-bisphosphatase. We discovered a glucose signaling mechanism by which the liver maintains glucose homeostasis by regulating the activities of this bifunctional enzyme. With a rise in glucose, a signaling metabolite, xylulose 5-phosphate, triggers rapid activation of a specific protein phosphatase (PP2ABδC), which dephosphorylates the bifunctional enzyme, thereby increasing fructose 2,6-P levels and upregulating glycolysis. These endeavors paved the way for us to initiate the later phase of my career in which we discovered a new transcription factor termed the carbohydrate response element binding protein (ChREBP). Now ChREBP is recognized as the masterregulator controlling conversion of excess carbohydrates to storage of fat in the liver. ChREBP functions as a central metabolic coordinator that responds to nutrients independently of insulin. The ChREBP transcription factor facilitates metabolic adaptation to excess glucose, leading to obesity and its associated diseases.

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2021-06-20
2024-04-19
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Literature Cited

  1. 1. 
    Izuo M. 2004. Medical history: Seishu Hanaoka and his success in breast cancer surgery under general anesthesia two hundred years ago. Breast Cancer 11:319–24
    [Google Scholar]
  2. 2. 
    Lardy HA, Parks RE Jr. 1956. Added comment. Enzymes: Units of Biological Structure and Function OH Gaebler 584 New York: Academic Press
    [Google Scholar]
  3. 3. 
    Lawson JWR, Guynn RW, Cornell NW, Veech RL. 1976. Gluconeogenesis: Its Regulation in Mammalian Species New York: John Wiley and Sons
  4. 4. 
    Reinhart GD, Lardy HA. 1980. Rat liver phosphofructokinase: kinetic activities under near-physiological conditions. Biochemistry 19:1477–84
    [Google Scholar]
  5. 5. 
    Kagimoto T, Uyeda K. 1979. Hormone-stimulated phosphorylation of liver phosphofructokinase in vivo. J. Biol. Chem. 254:5584–87
    [Google Scholar]
  6. 6. 
    Riou JP, Claus TH, Pilkis SJ. 1978. Stimulation of glucagon of in vivo phosphorylation of rat hepatic pyruvate kinase. J. Biol. Chem. 253:656–59
    [Google Scholar]
  7. 7. 
    Exton JH, Mallette LE, Jefferson LS, Wong EH, Friedmann N et al. 1970. The hormonal control of hepatic gluconeogenesis. Recent Prog. Horm. Res. 26:411–61
    [Google Scholar]
  8. 8. 
    Exton JH, Ui M, Park CR. 1970. Mechanism of glucagon action on gluconeogenesis. Hoppe Seylers Z. Physiol. Chem. 351:289–90
    [Google Scholar]
  9. 9. 
    Blair JB, Cook DE, Lardy HA. 1973. Influence of glucagon on the metabolism of xylitol and dihydroxyacetone in the isolated perfused rat liver. J. Biol. Chem. 248:3601–7
    [Google Scholar]
  10. 10. 
    Rognstad R. 1975. Cyclic AMP induced inhibition of pyruvate kinase flux in the intact liver cell. Biochem. Biophys. Res. Commun. 63:900–5
    [Google Scholar]
  11. 11. 
    Taunton OD, Stifel FB, Greene HL, Herman RH. 1974. Rapid reciprocal changes in rat hepatic glycolytic enzyme and fructose diphosphatase activities following insulin and glucagon injection. J. Biol. Chem. 249:7228–39
    [Google Scholar]
  12. 12. 
    Furuya E, Uyeda K. 1980. Regulation of phosphofructokinase by a new mechanism. An activation factor binding to phosphorylated enzyme. J. Biol. Chem. 255:11656–59
    [Google Scholar]
  13. 13. 
    Furuya E, Uyeda K 1980. An activation factor of liver phosphofructokinase. PNAS 77:5861–64
    [Google Scholar]
  14. 14. 
    Van Schaftingen E, Hue L, Hers HG 1980. Control of the fructose-6-phosphate/fructose 1,6-bisphosphate cycle in isolated hepatocytes by glucose and glucagon. Role of a low-molecular-weight stimulator of phosphofructokinase. Biochem. J. 192:887–95
    [Google Scholar]
  15. 15. 
    Pilkis SJ, El-Maghrabi MR, Pilkis J, Claus TH, Cumming DA. 1981. Fructose 2,6-bisphosphate. A new activator of phosphofructokinase. J. Biol. Chem. 256:3171–74
    [Google Scholar]
  16. 16. 
    Van Schaftingen E, Hers H-G. 1980. Synthesis of a stimulator of phosphofructokinase, most likely fructose 2,6-bisphosphate, from phosphoric acid and fructose 6-phosphoric acid. Biochem. Biophys. Res. Commun. 96:1524–31
    [Google Scholar]
  17. 17. 
    Uyeda K, Furuya E, Sherry AD. 1981. The structure of “activation factor” for phosphofructokinase. J. Biol. Chem. 256:8679–84
    [Google Scholar]
  18. 18. 
    Banaszak K, Machin I, Obmovova G, Oldham M, Chang SH et al. 2011. The crystal structures of eukaryotic phosphofructokinases from baker's yeast and rabbit skeletal muscle. J. Mol. Biol. 407:284–97
    [Google Scholar]
  19. 19. 
    Richards CS, Furuya E, Uyeda K. 1981. Regulation of fructose 2,6-P2 concentration in isolated hepatocytes. Biochem. Biophys. Res. Commun. 100:1673–79
    [Google Scholar]
  20. 20. 
    Richards CS, Uyeda K. 1982. Hormonal regulation of fructose-6-P-2-kinase and fructose-2,6-P2 by two mechanisms. J. Biol. Chem. 257:8854–61
    [Google Scholar]
  21. 21. 
    Richards CS, Yokoyama M, Furuya E, Uyeda K. 1982. Reciprocal changes in fructose-6-phosphate,2-kinase and fructose-2,6-bisphosphatase activity in response to glucagon and epinephrine. Biochem. Biophys. Res. Commun. 104:1073–79
    [Google Scholar]
  22. 22. 
    Cseke C, Weeden NF, Buchanan BB, Uyeda K 1982. A special fructose bisphosphate functions as a cytoplasmic regulatory metabolite in green leaves. PNAS 79:4322–26
    [Google Scholar]
  23. 23. 
    Furuya E, Uyeda K. 1981. A novel enzyme catalyzes the synthesis of activation factor from ATP and D-fructose-6-P. J. Biol. Chem. 256:7109–12
    [Google Scholar]
  24. 24. 
    Van Schaftingen E, Hers HG. 1981. Phosphofructokinase 2: the enzyme that forms fructose 2,6-bisphosphate from fructose 6-phosphate and ATP. Biochem. Biophys. Res. Commun. 101:1078–84
    [Google Scholar]
  25. 25. 
    El-Maghrabi MR, Claus TH, Pilkis J, Pilkis SJ. 1981. Partial purification of a rat liver enzyme that catalyzes the formation of fructose 2,6-bisphosphate. Biochem. Biophys. Res. Commun. 101:1071–77
    [Google Scholar]
  26. 26. 
    van Schaftingen E, Davies DR, Hers HG. 1982. Fructose-2,6-bisphosphatase from rat liver. Eur. J. Biochem. 124:143–49
    [Google Scholar]
  27. 27. 
    El-Maghrabi MR, Claus TH, Pilkis J, Fox E, Pilkis SJ 1982. Regulation of rat liver fructose 2,6-bisphosphatase. J. Biol. Chem. 257:7603–7
    [Google Scholar]
  28. 28. 
    Furuya E, Yokoyama M, Uyeda K. 1982. An enzyme that catalyzes hydrolysis of fructose-2,6-bisphosphate. Biochem. Biophys. Res. Commun. 105:264–70
    [Google Scholar]
  29. 29. 
    LaPorte DC, Koshland DE Jr 1982. A protein with kinase and phosphatase activities involved in regulation of tricarboxylic acid cycle. Nature 300:458–60
    [Google Scholar]
  30. 30. 
    Furuya E, Yokoyama M, Uyeda K 1982. Regulation of fructose-6-phosphate 2-kinase by phosphorylation and dephosphorylation: possible mechanism for coordinated control of glycolysis and glycogenolysis. PNAS 79:325–29
    [Google Scholar]
  31. 31. 
    Fedorov S, Uyeda K. 1992. Oscillation in fructose 2,6-bisphosphate levels and in the phosphorylation states of fructose 6-phosphate,2-kinase: fructose-2,6-bisphosphatase in ischemic rat liver. J. Biol. Chem. 267:20826–30
    [Google Scholar]
  32. 32. 
    El-Maghrabi MR, Fox E, Pilkis J, Pilkis SJ. 1982. Cyclic AMP-dependent phosphorylation of rat liver 6-phosphofructo 2-kinase, fructose 2,6-bisphosphatase. Biochem. Biophys. Res. Commun. 106:794–802
    [Google Scholar]
  33. 33. 
    Van Schaftingen E, Davies DR, Hers HG. 1981. Inactivation of phosphofructokinase 2 by cyclic AMP-dependent protein kinase. Biochem. Biophys. Res. Commun. 103:362–68
    [Google Scholar]
  34. 34. 
    Sakakibara R, Tanaka T, Uyeda K, Richards EG, Thomas H et al. 1985. Studies of the structure of fructose-6-phosphate 2-kinase:fructose-2,6-bisphosphatase. Biochemistry 24:6818–24
    [Google Scholar]
  35. 35. 
    Sakakibara R, Kitajima S, Uyeda K. 1984. Differences in kinetic properties of phospho and dephospho forms of fructose-6-phosphate, 2-kinase and fructose 2,6-bisphosphatase. J. Biol. Chem. 259:41–46
    [Google Scholar]
  36. 36. 
    Kitajima S, Sakakibara R, Uyeda K. 1983. Significance of phosphorylation of phosphofructokinase. J. Biol. Chem. 258:13292–98
    [Google Scholar]
  37. 37. 
    Kitajima S, Sakakibara R, Uyeda K. 1984. Kinetic studies of fructose 6-phosphate, 2-kinase and fructose 2,6-bisphosphatase. J. Biol. Chem. 259:6896–903
    [Google Scholar]
  38. 38. 
    Nishimura M, Fedorov S, Uyeda K. 1994. Glucose-stimulated synthesis of fructose 2,6-bisphosphate in rat liver. Dephosphorylation of fructose 6-phosphate, 2-kinase:fructose 2,6-bisphosphatase and activation by a sugar phosphate. J. Biol. Chem. 269:26100–6
    [Google Scholar]
  39. 39. 
    Nishimura M, Uyeda K. 1995. Purification and characterization of a novel xylulose 5-phosphate-activated protein phosphatase catalyzing dephosphorylation of fructose-6-phosphate,2-kinase:fructose-2,6-bisphosphatase. J. Biol. Chem. 270:26341–46
    [Google Scholar]
  40. 40. 
    Strack S, Chang D, Zaucha JA, Colbran RJ, Wadzinski BE. 1999. Cloning and characterization of Bδ, a novel regulatory subunit of protein phosphatase 2A. FEBS Lett 460:462–66
    [Google Scholar]
  41. 41. 
    Liu YQ, Uyeda K. 1996. A mechanism of regulation of hepatic Fru 2,6-P2 concentration upon refeeding: involvement of xylulose 5-P and cyclic-AMP. Biochem. Biophys. Res. Commun. 221:554–58
    [Google Scholar]
  42. 42. 
    Kuwajima M, Uyeda K. 1982. The tissue distribution of fructose-2,6-P2 and fructose-6-P,2-kinase in rats and the effect of starvation diabetes and hypoglycemia on hepatic fructose-2,6-P2 and fructose-6-P,2-kinase. Biochem. Biophys. Res. Commun. 104:84–88
    [Google Scholar]
  43. 43. 
    Jin ES, Uyeda K, Kawaguchi T, Burgess SC, Malloy CR, Sherry AD. 2003. Increased hepatic fructose 2,6-bisphosphate after an oral glucose load does not affect gluconeogenesis. J. Biol. Chem. 278:28427–33
    [Google Scholar]
  44. 44. 
    Hue L, Bartrons R. 1984. Role of fructose 2,6-bisphosphate in the control by glucagon of gluconeogenesis from various precursors in isolated rat hepatocytes. Biochem. J. 218:165–70
    [Google Scholar]
  45. 45. 
    Lawson JW, Uyeda K. 1987. Effects of insulin and work on fructose 2,6-bisphosphate content and phosphofructokinase activity in perfused rat hearts. J. Biol. Chem. 262:3165–73
    [Google Scholar]
  46. 46. 
    Kitamura K, Uyeda K. 1988. Purification and characterization of myocardial fructose-6-phosphate,2-kinase and fructose-2,6-bisphosphatase. J. Biol. Chem. 263:9027–33
    [Google Scholar]
  47. 47. 
    Kitamura K, Uyeda K. 1987. The mechanism of activation of heart fructose 6-phosphate,2-kinase:fructose-2,6-bisphosphatase. J. Biol. Chem. 262:679–81
    [Google Scholar]
  48. 48. 
    Ogushi S, Lawson JW, Dobson GP, Veech RL, Uyeda K. 1990. A new transient activator of phosphofructokinase during initiation of rapid glycolysis in brain. J. Biol. Chem. 265:10943–49
    [Google Scholar]
  49. 49. 
    Kawaguchi T, Veech RL, Uyeda K. 2001. Regulation of energy metabolism in macrophages during hypoxia. Roles of fructose 2,6-bisphosphate and ribose 1,5-bisphosphate. J. Biol. Chem. 276:28554–61
    [Google Scholar]
  50. 50. 
    Ishikawa E, Ogushi S, Ishikawa T, Uyeda K. 1990. Activation of mammalian phosphofructokinases by ribose 1,5-bisphosphate. J. Biol. Chem. 265:18875–78
    [Google Scholar]
  51. 51. 
    Sakakibara R, Uyeda K. 1983. Differences in the allosteric properties of pure low and high phosphate forms of phosphofructokinase from rat liver. J. Biol. Chem. 258:8656–62
    [Google Scholar]
  52. 52. 
    Sakakibara R, Kato M, Okamura N, Nakagawa T, Komada Y et al. 1997. Characterization of a human placental fructose-6-phosphate, 2-kinase/fructose-2,6-bisphosphatase. J. Biochem. 122:122–28
    [Google Scholar]
  53. 53. 
    Tominaga N, Tsujikawa T, Minami Y, Wu RF, Watanabe F et al. 1997. Effect of replacement of the amino and the carboxyl termini of rat testis fructose 6-phosphate, 2-kinase:fructose 2,6-bisphosphatase with those of the liver and heart isozymes. Arch. Biochem. Biophys. 347:275–81
    [Google Scholar]
  54. 54. 
    Hasemann CA, Istvan ES, Uyeda K, Deisenhofer J. 1996. The crystal structure of the bifunctional enzyme 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase reveals distinct domain homologies. Structure 4:1017–29
    [Google Scholar]
  55. 55. 
    Istvan ES, Hasemann CA, Kurumbail RG, Uyeda K, Deisenhofer J. 1995. Crystallization and preliminary X-ray analysis of fructose 6-phosphate, 2-kinase:fructose 2,6-bisphosphatase. Protein Sci 4:2439–41
    [Google Scholar]
  56. 56. 
    Rider MH, Bertrand L, Vertommen D, Michels PA, Rousseau GG, Hue L 2004. 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase: head-to-head with a bifunctional enzyme that controls glycolysis. Biochem. J. 381:561–79
    [Google Scholar]
  57. 57. 
    Mizuguchi H, Cook PF, Hasemann CA, Uyeda K. 1997. Chemical mechanism of the fructose-6-phosphate,2-kinase reaction from the pH dependence of kinetic parameters of site-directed mutants of active site basic residues. Biochemistry 36:8775–84
    [Google Scholar]
  58. 58. 
    Mizuguchi H, Cook PF, Tai CH, Hasemann CA, Uyeda K. 1999. Reaction mechanism of fructose-2,6-bisphosphatase. A mutation of nucleophilic catalyst, histidine 256, induces an alteration in the reaction pathway. J. Biol. Chem. 274:2166–75
    [Google Scholar]
  59. 59. 
    Horton JD, Goldstein JL, Brown MS. 2002. SREBPs: activators of the complete program of cholesterol and fatty acid synthesis in the liver. J. Clin. Invest. 109:1125–31
    [Google Scholar]
  60. 60. 
    Foretz M, Guichard C, Ferre P, Foufelle F 1999. Sterol regulatory element binding protein-1c is a major mediator of insulin action on the hepatic expression of glucokinase and lipogenesis-related genes. PNAS 96:12737–42
    [Google Scholar]
  61. 61. 
    Girard J, Ferre P, Foufelle F. 1997. Mechanisms by which carbohydrates regulate expression of genes for glycolytic and lipogenic enzymes. Annu. Rev. Nutr. 17:325–52
    [Google Scholar]
  62. 62. 
    Towle HC, Kaytor EN, Shih HM. 1997. Regulation of the expression of lipogenic enzyme genes by carbohydrate. Annu. Rev. Nutr. 17:405–33
    [Google Scholar]
  63. 63. 
    Liang G, Yang J, Horton JD, Hammer RE, Goldstein JL, Brown MS. 2002. Diminished hepatic response to fasting/refeeding and liver X receptor agonists in mice with selective deficiency of sterol regulatory element-binding protein-1c. J. Biol. Chem. 277:9520–28
    [Google Scholar]
  64. 64. 
    Liu Z, Thompson KS, Towle HC. 1993. Carbohydrate regulation of the rat L-type pyruvate kinase gene requires two nuclear factors: LF-A1 and a member of the c-myc family. J. Biol. Chem. 268:12787–95
    [Google Scholar]
  65. 65. 
    Doiron B, Cuif MH, Kahn A, Diaz-Guerra MJ. 1994. Respective roles of glucose, fructose, and insulin in the regulation of the liver-specific pyruvate kinase gene promoter. J. Biol. Chem. 269:10213–16
    [Google Scholar]
  66. 66. 
    Yamashita H, Takenoshita M, Sakurai M, Bruick RK, Henzel WJ et al. 2001. A glucose-responsive transcription factor that regulates carbohydrate metabolism in the liver. PNAS 98:9116–21
    [Google Scholar]
  67. 67. 
    Cairo S, Merla G, Urbinati F, Ballabio A, Reymond A. 2001. WBSCR14, a gene mapping to the Williams–Beuren syndrome deleted region, is a new member of the Mlx transcription factor network. Hum. Mol. Genet. 10:617–27
    [Google Scholar]
  68. 68. 
    Iizuka K, Bruick RK, Liang G, Horton JD, Uyeda K 2004. Deficiency of carbohydrate response element-binding protein (ChREBP) reduces lipogenesis as well as glycolysis. PNAS 101:7281–86
    [Google Scholar]
  69. 69. 
    Iizuka K, Miller B, Uyeda K. 2006. Deficiency of carbohydrate-activated transcription factor ChREBP prevents obesity and improves plasma glucose control in leptin-deficient (ob/ob) mice. Am. J. Physiol. Endocrinol. Metab. 291:E358–64
    [Google Scholar]
  70. 70. 
    Kawaguchi T, Takenoshita M, Kabashima T, Uyeda K 2001. Glucose and cAMP regulate the L-type pyruvate kinase gene by phosphorylation/dephosphorylation of the carbohydrate response element binding protein. PNAS 98:13710–15
    [Google Scholar]
  71. 71. 
    Ma L, Robinson LN, Towle HC. 2006. ChREBP·Mlx is the principal mediator of glucose-induced gene expression in the liver. J. Biol. Chem. 281:28721–30
    [Google Scholar]
  72. 72. 
    Merla G, Howald C, Antonarakis SE, Reymond A. 2004. The subcellular localization of the ChoRE-binding protein, encoded by the Williams-Beuren syndrome critical region gene 14, is regulated by 14-3-3. Hum. Mol. Genet. 13:1505–14
    [Google Scholar]
  73. 73. 
    Ge Q, Nakagawa T, Wynn RM, Chook YM, Miller BC, Uyeda K. 2011. Importin-α protein binding to a nuclear localization signal of carbohydrate response element-binding protein (ChREBP). J. Biol. Chem. 286:28119–27
    [Google Scholar]
  74. 74. 
    Sakiyama H, Wynn RM, Lee WR, Fukasawa M, Mizuguchi H et al. 2008. Regulation of nuclear import/export of ChREBP; interaction of an α-helix of ChREBP with the 14-3-3 proteins and regulation by phosphorylation. J. Biol. Chem. 283:24899–908
    [Google Scholar]
  75. 75. 
    Fukasawa M, Ge Q, Wynn RM, Ishii S, Uyeda K. 2010. Coordinate regulation/localization of the carbohydrate responsive binding protein (ChREBP) by two nuclear export signal sites: discovery of a new leucine-rich nuclear export signal site. Biochem. Biophys. Res. Commun. 391:1166–69
    [Google Scholar]
  76. 76. 
    Ge Q, Huang N, Wynn RM, Li Y, Du X et al. 2012. Structural characterization of a unique interface between carbohydrate response element-binding protein (ChREBP) and 14-3-3β protein. J. Biol. Chem. 287:41914–21
    [Google Scholar]
  77. 77. 
    Kabashima T, Kawaguchi T, Wadzinski BE, Uyeda K 2003. Xylulose 5-phosphate mediates glucose-induced lipogenesis by xylulose 5-phosphate-activated protein phosphatase in rat liver. PNAS 100:5107–12
    [Google Scholar]
  78. 78. 
    Doiron B, Cuif MH, Chen R, Kahn A 1996. Transcriptional glucose signaling through the glucose response element is mediated by the pentose phosphate pathway. J. Biol. Chem. 271:5321–24
    [Google Scholar]
  79. 79. 
    Nakagawa T, Ge Q, Pawlosky R, Wynn RM, Veech RL, Uyeda K. 2013. Metabolite regulation of nucleo-cytosolic trafficking of carbohydrate response element-binding protein (ChREBP): role of ketone bodies. J. Biol. Chem. 288:28358–67
    [Google Scholar]
  80. 80. 
    Sato S, Jung H, Nakagawa T, Pawlosky R, Takeshima T et al. 2016. Metabolite regulation of nuclear localization of carbohydrate-response element-binding protein (ChREBP): role of AMP as an allosteric inhibitor. J. Biol. Chem. 291:10515–27
    [Google Scholar]
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