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Molecular and functional relations and intracellular polarized movement of the functional molecules in stomach and intestine.

Research Project

Project/Area Number 12144205
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionToyama Medical and Pharmaceutical University

Principal Investigator

SAKAI Hideki (2004)  Toyama Medical and Pharmaceutical University, Faculty of Pharmaceutical Sciences, Professor, 薬学部, 教授 (60242509)

竹口 紀晃 (2000-2003)  富山医科薬科大学, 副学長 (00019126)

Co-Investigator(Kenkyū-buntansha) MORII Magotoshi  Toyama Medical and Pharmaceutical University, Faculty of Pharmaceutical Sciences, Associate Professor, 薬学部, 講師 (60019130)
酒井 秀紀  富山医科薬科大学, 薬学部, 助教授 (60242509)
Project Period (FY) 2000 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥33,800,000 (Direct Cost: ¥33,800,000)
Fiscal Year 2004: ¥8,400,000 (Direct Cost: ¥8,400,000)
Fiscal Year 2003: ¥8,400,000 (Direct Cost: ¥8,400,000)
Fiscal Year 2002: ¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 2001: ¥8,500,000 (Direct Cost: ¥8,500,000)
Keywordsgastric proton pump / gastric acid secretion / phosphorvlation / proteasome / acid pump antagonist / flippase / thromboxane / Na^+.K^+-ATPase / リン脂質 / 分子動力学 / Cl^-チャネル / 大腸 / 安定発現細胞 / プロトンポンプ阻害剤 / 大腸がん / 遺伝子発現 / 大腸プロトンポンプ / イオンポンプ / ナトリウムポンプ
Research Abstract

We investigated vectorial-transporting mechanisms of gastric acid secretion and intestinal ion-secretion.
1. We established the stable cell lines expressing the gastric proton a-and/or B-subunits. The a-subunit was retained in intracellular compartment and was unstable in the absence of β-subunit, but it was stabilized and reached the cell surface in the presence of β-subunit. We found that the extracellular three disulfide bonds of β-subunit are essential for assembly with a-subunit and expression of the pump activity as well as for cell surface delivery of a-subunit. The ubiquitin/proteasome system was involved in degradation of unassembled α-subunits in ER.
2. We found that Glu-345 in the fourth transmembrane (M4) segment of the proton pump is involved in cation-induced conformational change in the pump. We also found that Leu-819 and Glu-822 in the M6 segment are involved in K+-dependent dephosphorylation, and that Asp-826, Ile-827 and Leu-833 in the M6 are involved in phosphorylation of the pump.
3. We clarified that the binding site of SCH 28080, an acid pump antagonist, is a cavity in the E2 form of the proton pump a-subunit, and Tyr-801 faces the cavity.
4. We found that the phospholipid flippase activity is part of the proton pump reaction.
5. We confirmed that ClC-2 Cl^-channel is not a Cl^-transporting protein for gastric acid secretion in parietal cells.
6. We established new gastric epithelial cell lines expressing proton a-subunit mRNA from mice transgenic for temperature-sensitive simian virus 40 large T antigen.
7. We found that thromboxane A2 is involved in the mechanism of secretory diarrhea in colon, and that thromboxane A2 is released only in pathophysiological condition.
8. We found that a decrease in Na^+,K^+-ATPase al-isoform expression and an increase in Na^+,K^+-ATPase a3-isoform expression are associated with human colorectal cancer.

Report

(6 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (78 results)

All 2005 2004 2003 2002 2001 2000 Other

All Journal Article (52 results) Publications (26 results)

  • [Journal Article] Cyclic AMP-dependent Cl^- secretion induced by thromboxane A_2 in isolated human colon.2005

    • Author(s)
      Horikawa N, et al.
    • Journal Title

      J Physiol 562

      Pages: 885-897

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Novel molecular mechanisms of gastric phospholipids translocation activity in isolated hog gastric vesicles.2005

    • Author(s)
      Morii M, et al.
    • Journal Title

      Membrane 30

      Pages: 312-317

    • NAID

      10016855118

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Cyclic AMP-dependent Cl^- secretion induced by thromboxane A_2 in isolated human colon.2005

    • Author(s)
      Horikawa N, Suzuki T, Uchiumi T, Minamimura T, Tsukada K, Takeguchi N, Sakai H.
    • Journal Title

      Journal of Physiology (London) 562巻3号

      Pages: 885-897

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Molecular and cellular regulation of the gastric proton pump.2004

    • Author(s)
      Asano S, et al.
    • Journal Title

      Biol Pharm Bull 27

      Pages: 1-12

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Leukotrienes-mediated effects of water extracts from Sargassum horneri, a marine brown alga, on Cl^- absorption in isolated rat colon.2004

    • Author(s)
      Sakai H, et al.
    • Journal Title

      Jpn J Physiol 54

      Pages: 71-77

    • NAID

      10012687155

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The cavity structure for docking the K^+-competitive inhibitors in the gastric proton pump.2004

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biol. Chem 279

      Pages: 13968-13975

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Up-regulation of Na^+,K^+-ATPase α3-isoform and down-regulation of the α1-isoform in human colorectal cancer.2004

    • Author(s)
      Sakai H, et al.
    • Journal Title

      FEBS Lett 563

      Pages: 151-154

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is the ClC-2 chloride channel involved in the Cl^- secretory mechanism of gastric parietal cells?2004

    • Author(s)
      Hori K, et al.
    • Journal Title

      FEBS Lett 575

      Pages: 105-108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Association of paracellin-1 with ZO-1 augments the reabsorption of divalent cations in renal epithelial cells.2004

    • Author(s)
      Ikari A, et al.
    • Journal Title

      J Biol Chem 279

      Pages: 54826-54832

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The cavity structure for docking the K^+-competitive inhibitors in the gastric proton pump.2004

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biol Chem 279

      Pages: 13968-13975

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Up-regulation of Na^+,K^+-ATPase a3-isoform and down-regulation of the α1-isoform in human colorectal cancer.2004

    • Author(s)
      Sakai H, et al.
    • Journal Title

      FEBS Lett 563

      Pages: 151-154

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is the ClC-2 chloride channel involved in the Cl^- secretory mechanism of gastric parietal cells?2004

    • Author(s)
      HoriK, et al.
    • Journal Title

      FEBS Lett 575

      Pages: 105-108

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The cavity structure for docking the K^+-competitive inhibitors in the gastric proton pump.2004

    • Author(s)
      Asano S, Yoshida A, Yashiro H, Kobayashi Y, Morisato A, Ogawa H, Takeguchi N, Morii M.
    • Journal Title

      Journal of Biological Chemistry 279巻14号

      Pages: 13968-13975

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Up-regulation of Na^+, K^+-ATPase α3-isoform and down-regulation of the α1-isoform in human colorectal cancer.2004

    • Author(s)
      Sakai H, Suzuki T, Maeda M, Takahashi Y, Horikawa N, Minamimura T, Tsukada K, Takeguchi N.
    • Journal Title

      FEBS Letters 563巻1-3号

      Pages: 151-154

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Is the ClC-2 chloride channel involved in the Cl^- secretory mechanism of gastric parietal cells?2004

    • Author(s)
      Hori K, Takahashi Y, Horikawa N, Furukawa T, Tsukada K, Takeguchi N, Sakai H.
    • Journal Title

      FEBS Letters 575巻1-3号

      Pages: 105-108

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Association of paracellin-1 with ZO-1 augments the reabsorption of divalent cations in renal epithelial cells.2004

    • Author(s)
      Ikari A, Hirai N, Shiroma M, Harada H, Sakai H, Hayashi H, Suzuki Y, Degawa M, Takagi K.
    • Journal Title

      Journal of Biological Chemistry 279巻52号

      Pages: 54826-54832

    • Related Report
      2004 Annual Research Report
  • [Journal Article] New gastric epithelial cell lines from mice transgenic for temperature-sensitive simian virus 40 large T antigen show distinct types of cell differentiation.2003

    • Author(s)
      Tabuchi Y, et al.
    • Journal Title

      Digestion 67

      Pages: 71-81

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quality control of gastric proton pump in the endoplasmic reticulum by ubiquitin/proteasome system.2003

    • Author(s)
      Asano S, et al.
    • Journal Title

      Ann N Y Acad Sci 986

      Pages: 655-657

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quantity and quality control of gastric proton pump in the endoplasmic reticulum by ubiquitin/proteasome system.2003

    • Author(s)
      Kimura T, et al.
    • Journal Title

      Biochemistry 42

      Pages: 4771-4779

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Inhibition of small-conductance Cl^- channels by the interleukin-1β-stimulated production of superoxide in rabbit gastric parietal cells.2003

    • Author(s)
      Sakai H, et al.
    • Journal Title

      J Physiol 551

      Pages: 207-217

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quality control of gastric proton pump in the endoplasmic reticulum by ubiquitin/proteasome system.2003

    • Author(s)
      Asano S, et al.
    • Journal Title

      Ann Ny Acad Sci 986

      Pages: 655-657

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quantity and quality control of gastric proton pump in the endoplasmic reticulum by ubiquitin/proteasomesystem.2003

    • Author(s)
      Kimura T, et al.
    • Journal Title

      Biochemistry 42

      Pages: 4771-4779

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Inhibition of small-conductance cl^- channels by the interleukin-1β-stimulated production of superoxide in rabbit gastric parietal cells.2003

    • Author(s)
      Sakai H, et al.
    • Journal Title

      J Physiol 551

      Pages: 207-217

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Molecular and pharmacological properties of inwardly rectifying K^+ channels of human lung cancer cells.2002

    • Author(s)
      Sakai H, et al.
    • Journal Title

      Eur J Pharmacol 435

      Pages: 125-133

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Specific localization of an inwardly rectifying K^+ channel, Kir4.1, at the apical membrane of rat gastric parietal cells; its possible involvement in K^+ recycling for the H^+-K^+-pump.2002

    • Author(s)
      Fujita A, et al.
    • Journal Title

      J Physiol 540

      Pages: 85-92

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Development and characterization of conditionally immortalized gastric epithelial cell lines from transgenic rats harboring temperature-sensitive simian virus 40 large T-antigen gene.2002

    • Author(s)
      Tabuchi Y, et al.
    • Journal Title

      Cell Struct Funct 27

      Pages: 71-79

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Identification of genes responsive to sodium butyrate in colonic cells.2002

    • Author(s)
      Tabuchi Y, et al.
    • Journal Title

      Biochem Biophys Res Commun 293

      Pages: 1287-1294

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mutational study on the roles of disulfide bonds in the β-subunit of gastric H^+,K^+-ATPase.2002

    • Author(s)
      Kimura T, et al.
    • Journal Title

      J Biol Chem 277

      Pages: 20671-20677

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] E3040 sulfate, a novel thromboxane synthase inhibitor, blocks the Cl^- secretion induced by platelet-activating factor in isolated rat colon.2002

    • Author(s)
      Sakai H, et al.
    • Journal Title

      Br J Pharmacol 136

      Pages: 383-390

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Stable expression of gastric proton pump activity at the cell surface.2002

    • Author(s)
      Kimura T, et al.
    • Journal Title

      J Biochem 131

      Pages: 923-932

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Expression of ATP1AL1, a non-gastric proton pump, in human colorectum.2002

    • Author(s)
      Takahashi Y, et al.
    • Journal Title

      Jpn J Physiol 52

      Pages: 317-321

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nitric oxide-induced Cl^- secretion in isolated rat colon is mediated by the release of thromboxane A_2.2002

    • Author(s)
      Sakai H, et al.
    • Journal Title

      J Physiol 543

      Pages: 261-271

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Specific localization of an inwardly rectifying K^+ channel, Kir4.1, at the apical membrane of rat gastric parietal cells; its possible involvement in K^+ recycling for the H^+-K^+-purnp.2002

    • Author(s)
      Fujita A, et al.
    • Journal Title

      J Physiol 540

      Pages: 85-92

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] E3040 sulfate, a novel thromboxane synthase inhibitor, blocks the Cl^-secretion induced by platelet-activating factor in isolated rat colon.2002

    • Author(s)
      Sakai H, et al.
    • Journal Title

      Br J Pharmacol 136

      Pages: 383-390

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Expression of ATP1AL1, a non-gastric proton pump, in human colorectum.2002

    • Author(s)
      Takahashi Y, et al.Tsukada K, Asano S, Takeguchi N
    • Journal Title

      Jpn J Physiol 52

      Pages: 317-321

    • NAID

      10010020642

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is rabbit CLCA1 related to the basolateral Ca^<2+>-dependent Cl^- channel of gastric parietal cells?2001

    • Author(s)
      Sakai H. et al.
    • Journal Title

      Jpn J Physiol 51

      Pages: 121-125

    • NAID

      10008293114

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Alanine-scanning mutagenesis of the sixth transmembrane segment of gastric H^+,K^+-ATPase α-subunit.2001

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biol Chem 276

      Pages: 31265-31273

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Cibenzoline, an ATP-sensitive K^+ channel blocker, binds to the K^+-binding site from the cytoplasmic side of gastric H^+,K^+-ATPase.2001

    • Author(s)
      Tabuchi Y, et al.
    • Journal Title

      Br J Pharmacol 134

      Pages: 1655-1662

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is rabbit CLCA1 related to the basolateral Ca^<2+>-dependent Cl-channel of gastric parietal cells?2001

    • Author(s)
      Sakai H, et al.
    • Journal Title

      Jpn J Physiol 51

      Pages: 121-125

    • NAID

      10008293114

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Alanine-scanning mutagenesis of the sixth transmembrane segment of gastric H^+,K^+-ATPase a-subunit.2001

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biol Chem 276

      Pages: 31265-31273

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Molecular cloning, functional expression and chromosomal localization of an amiloride-sensitive Na^+ channel from human small intestine.2000

    • Author(s)
      Schaefer L, et al.
    • Journal Title

      FEBS Lett 471

      Pages: 205-210

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mutational analysis of the putative K^+-binding site on the fourth transmembrane segment of the gastric H^+,K^+-ATPase.2000

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biochem 127

      Pages: 993-1000

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mobilization of intracellular Ca^<2+> by thromboxane A_2 does not affect Ca^<2+>-activated K^+ channels in rat colonic crypt cells.2000

    • Author(s)
      Suzuki T, et al.
    • Journal Title

      Jpn J Physiol 50

      Pages: 389-393

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Thromboxane A_2-mediated Cl^- secretion induced by platelet-activating factor in isolated rat colon.2000

    • Author(s)
      Suzuki T, et al.
    • Journal Title

      Eur J Pharmacol 400

      Pages: 297-303

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The phospholipid flippase in isolated hog gastric vesicles : Evidence for translocation of endogenous glycerolphospholipids.2000

    • Author(s)
      Morii M, et al.
    • Journal Title

      Membrane 25

      Pages: 198-205

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Significance of lysine/glycine cluster structure in gastric H^+,K^+-ATPase.2000

    • Author(s)
      Asano S, et al.
    • Journal Title

      Jpn J Physiol 50

      Pages: 419-428

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Inhibition of thromboxane A_2-induced Cl^- secretion by antidiarrhea drug loperamide in isolated rat colon.2000

    • Author(s)
      Suzuki T, et al.
    • Journal Title

      J Pharmacol Exp Ther 295

      Pages: 233-238

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Establishment and characterization of a colonic epithelial cell line MCE301 from transgenic mice harboring temperature-sensitive simian virus 40 large T-antigen gene.2000

    • Author(s)
      Tabuchi Y, et al.
    • Journal Title

      Cell Struct Funct 25

      Pages: 297-307

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effects of proton pump inhibitors SCH28080, SPI-447 and rabeprazole on the gastric phospholipid flippase activity.2000

    • Author(s)
      Morii M, et al.
    • Journal Title

      Membrane 25

      Pages: 324-331

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mutational analysis of the putative K^+-binding site on the fourth transmembrane segment of the gastric H+^,K^+-ATPase.2000

    • Author(s)
      Asano S, et al.
    • Journal Title

      J Biochem 127

      Pages: 993-1000

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Inhibition of thromboxane A2-induced Cl-secretion by antidiarrhea drug loperamide in isolated rat colon.2000

    • Author(s)
      Suzuki T, et al.
    • Journal Title

      J Pharmacol Exp Ther 295

      Pages: 233-238

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Establishment and characterization of a colonic epithelial cell line MCE301 from transgenic mice harboring temperature-sensitive simian virus 40 large T-antigen gene.2000

    • Author(s)
      Tabuchi Y, et al., Furusawa M, Obinata M, Fuse H, Takeguchi N, Asano S
    • Journal Title

      Cell Struct Funct 25

      Pages: 297-307

    • NAID

      10006679009

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Tabuchi Y, Arai Y, Shioya H, Kuribayashi R, Ishibashi K, Sugiyama N, Obinata M, Takeguchi N, Asano S: "New gastric epithelial cell lines from mice transgenic for temperature-sensitive simian virus 40 large T-antigen show distinct types of cell differentiation."Digestion. 67・1-2. 71-81 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kimura T, Ishizuka H, Yoshida A, Morii M, Takeguchi N, Asano S: "Quality and quantity control of gastric proton pump in the endoplasmic reticulum by ubiquitin/proteasome system."Biochemistry. 42・17. 4771-4779 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sakai H, Ohira Y, Tanaka A, Suzuki T, Ikari A, Morii M, Takeguchi N: "Inhibition of small-conductance Cl-channels by the interleukin-1β-stimulated production of superoxide in rabbit gastric parietal cells."Journal of Physiology. 551・1. 207-217 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Asano S, Yoshida A, Yashiro H, Kobayashi Y, Morisato A, Ogawa H, Takeguchi N, Morii M: "The cavity structure for docking the K^+competitive inhibitors in the gastric proton pump."Journal of Biological Chemistry. In press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sakai H, Uchiumi T, Lee J-B, Ohira Y, Okura J, Suzuki T, Hayashi T, Takeguchi N: "Leukotrienes-mediated effects of water extracts from Sargassum horneri, a marine brown alga, on Cl- absorption in isolated rat colon."Japanese Journal of Physiology. In press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sakai H, Suzuki T, Maeda M, Takahashi Y, Horikawa N, Minamimura T, Tsukada K, Takeguchi N: "Up-regulation of Na^+,K^+-ATPase α3-isoform and down-regulation of the α1-isoform in human colorectal cancer."FEBS Letters. In press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Fujita A et al.: "Specific localization of an inwardly rectifying K^+ channel, Kir4.1, at the apical membrane of gastric parietal cells; its possible involvement in K^+ recycling for activation of H^+-K^+-pump"J. Physiol. (London). 540. 85-92 (2002)

    • Related Report
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  • [Publications] Kimura T et al.: "Mutational study on the roles of disulfide bonds in the β-subunit of gastric H^+,K^+-ATPase"J. Biol. Chem.. 272. 20671-20677 (2002)

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  • [Publications] Kimura T et al.: "Stable expression of gastric proton pump activity at the cell surface"J. Biochemistry. 131. 923-932 (2002)

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  • [Publications] Takahashi Y. et al.: "Expression of ATP1AL1, a non-gastric proton pump, in human colorectum"Jpn. J. Physiol.. 52. 317-321 (2002)

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  • [Publications] Sakai H. et al.: "E3040 sulphate, a novel thromboxane synthase inhibitor, blocks the Cl^-secretion induced by platelet-activating factor in isolated rat colon"Br. J. Pharmacol.. 316. 383-390 (2002)

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  • [Publications] Sakai H. et al.: "Nitric oxide-induced Cl^-secretion in isolated rat colon is mediated by the release of thromboxane A_2"J. Physiol. (London). 543. 261-271 (2002)

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  • [Publications] Asano S., et al.: "Alanine-scanning mutagenesis of the sixth transmembrane segment of gastric H, K-ATPase α-subunit"Journal of Biological Chemistry. 276. 31265-31273 (2001)

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  • [Publications] Tabuchi Y., et al.: "Cibenzoline, an ATP-sensitive K channel blocker, binds to the K-binding site from the cytoplasmic side of gastric H, K-ATPase"British Journal of Pharmacology. 134. 1655-1662 (2001)

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  • [Publications] Kimura T.et al.: "Mutational study on the roles of disulfide bonds in the beta-subunit of gastric H+, K+-ATPase"Journal of Biological Chemistry. 277(In press). (2002)

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  • [Publications] Sakai H., et al.: "Is rabbit CLCA1 related to the basolateral Ca-dependent Cl channel of gastric parietal cells ?"Japanese Journal of Physiology. 51. 121-125 (2001)

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  • [Publications] Sakai H., et al.: "Molecular and pharmacological properties of inwardly rectifying K・ channels of human lung cancer cells"European Journal of Pharmacology. 435. 125-133 (2002)

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  • [Publications] Tabuchi Y., et al.: "Development and characterization of conditionally immortalized gastric epithelial cell lines from transgenic rats harboring temperature-sensitive simian virus 40 large T-antigen gene"Cell Structure and Function. (In press). (2002)

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  • [Publications] Asano S et al.: "The role of carbohydrate chains of the β-subunit on the functional expression of gastric H^+,K^+-ATPase."J.Biol.Chem.. 275. 6848-6854 (2000)

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  • [Publications] Asano S et al.: "Mutational analysis of the putative cation affinity site on the fourth transmembrane segment of the gastric H^+,K^+-ATPase.J.Biochem.,127:993-1000,2000."J.Biochem.. 127. 993-1000 (2000)

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  • [Publications] Suzuki T et al.: "Inhibition of thromboxane A_2^--induced Cl^- secretion by antidiarrhea drug loperamide in isolated rat colon."J.Pharmacol.Exp.Ther.. 295. 233-238 (2000)

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  • [Publications] Suzuki T et al.: "Thromboxane A_2^--mediated Cl^- secretion induced by platelet-activating factor in isolated rat colon."Eur.J.Pharmacol.. 400. 297-303 (2000)

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  • [Publications] Asano S et al.: "Significance of lysine-glycine cluster structure in the gastric H^+,K^+-ATPase."Jpn.J.Physiol.. 50. 419-428 (2000)

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  • [Publications] Morii M et al.: "The phospholipid flippase in isolated hog gastric vesicles : Evidence for translocation of endogenous glycerolphospholipids."Membrane. 25. 198-205 (2000)

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  • [Publications] 竹口紀晃 ら: "ニューバイオフィジックスII第3巻"ポンプとトランスポーター"P型ATPaseによる細胞生理の制御"共立出版. 19 (2000)

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  • [Publications] Asano S et al.: "A chimeric H^+,K^+-ATPase inhibitable with both ouabain and SCH 28080, In Na/K- ATPase and Related ATPases."Elsevier Science BV, Amsterdam.. 6 (2000)

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Published: 2001-04-01   Modified: 2018-03-28  

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