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Local Regulation of Endocrine Organ by Members of TGF family

Research Project

Project/Area Number 05454315
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 内分泌・代謝学
Research InstitutionGunma University

Principal Investigator

KOJIMA Itaru  Professer, Department of Cell Biology, Institute for Molecular and Cellular Regulation, Gunma University, 生体調節研究所, 教授 (60143492)

Co-Investigator(Kenkyū-buntansha) SHIBATA Hiroshi  Associate Professor, ibid., 生体調節研究所, 助教授 (20235584)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1995: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1994: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsTGF-beta / activin A / pancreatic endocrine cell / differentiation / insulin / calcium / autocrine / paracrine / パラクリン機構 / オートクリン機構 / 局所因子 / 分化誘導因子 / 増殖因子
Research Abstract

In the present research, we studied the role of members of TGF-beta supergene family in the regulation of pancreatic endocrine cell. We obtained the following results. First, we showed that activin A and TGF-beta are expressed in non-beta and beta-cells of the pancreatic islet, reapectively. Second, both activin A and TGF-beta stimulate insulin secretion by calcium-dependent manners. Furthermore, these two ligands inhibit the activity of the ATP-sensitive potassium channel and increase calcium influx via voltage-dependent calcium channel. This mode of action resembles that of glucose, a major stimulant of insulin secretion. Third, activin A is expressed in endocrine precursor cells found in pancreatic anlage and is thought to play a role in the differentiation of pancreatic endocrine cells. Consistent with this notion, activin A converted amylase-containing pancreatic AR42J cells, a cell line possessing characteristics similar to pancreatic precursor cells, into neuron-like cells. Furthermore, activin A-treated AR42J cells express pancreatic polypeptide, a pancreatic hormone. Hence, activin A converts AR42J cells into endocrine cells in pancreas.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Yasuda H., et al.: "Activein A:negative regulator of amylase secretion and cell proliferation in rat pancreatic acinar AR42J cells" American Journal of Physiology. 267. G220-G226 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ohnishi H.,et al.: "Conversion of amylase-containing pancreatic AR42J cells to neuron-like cells by activin A" Journal of Clinical Investigation. 95. 2304-2314 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Furukawa,M., et al.: "Expression of activin A in fetal rat pancreas." Endocrine Journal. 42. 63-68 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Mogami H.,et al.: "Modulation of ATP-sensitive potassium channel and voltage-dependent calcium channel by activin A in HIT-TIS cells." Endocrinology. 136. 2960-2966 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Furukawa M.,et al.: "Initiation of insulin secretion from rat pancreatic islet in the absence of glucese by activin A." Mollecular and Cellular Endocrinology. 113. 83-87 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Mashima H.,et al.: "Betacellulin and activin A coordinately convert amylase-secreby AR42J cells into insulin-secreting cells" Jounal of Clinical Investigation. (印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yasuda, H et al.: "Existence of activin A in A-and D-cells of rat pancreatic islet." Endocrinology. 133. 624-630 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yasuda, H et al.: "Activin A : negative regulator of amylase and cell proliferation in rat pancreatic acinar AR42J cells" Am.J.Physiol.267. G220-G226 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ohnishi, H et al.: "Conversion of amylase-containing rat pancreatic Ar42J cells to neuronlike cells by activin A" J.Clin.Invest.95. 2304-2314 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Mogami, H et al.: "Modulation of ATP-sensitive potass ium channel and volatage-dependent calcium channel by activin A" Endocrinology. 136. 2960-2966 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Furukawa M.et al.: "Expression of activin A in fetal rat pancreas" Endocrine J.42. 63-68 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Furukawa, M.et al.: "Initiation of insulin secretion from rat pancreatic islet in the absence glucose by activin A." Mol.Cell.Endocrinol.113. 83-87 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Mashima, H.et al.: "Betacellulin and activin A coordinately convert amylase-secreting AR42J cells into insulin-secreting cells" J.Clin.lnvest.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Furukawa, M., Eto, Y. and Kojima, I.: "Expression of activin A in fetal rat pancreas." Endocrine J.42. 63-68 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Ohnishi, H., Ohgushi, N., Tanaka, S. Mogami, H. et al.: "Conversion of amylase-containing rat pancreatic AR42J cells to neurou-like cells by activin A." J. Clin. Invest.95. 2304-2314 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Mogami, H., Nobusawa, R., Kanzaki, M., at al.: "Modulation of ATP-sensitive potassium channel and voltage-dependent calcium channel by activin A." Endocrinology. 136. 2960-2966 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Furukawa, M., Nobusawa, R., Shibata, H.,et al.: "Initiation of insulin secretion from rat pancreatic islet in the absence of glucose by activin A" Mol. Cell. Endocrinol.113. 83-87 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Ishiyama, N., Shibata, H. Kanzaki, M. et al.: "Calcium as a second messenger of the action of TGF-β on insulin secretion" Mol. Cell. Endocrinol.(in press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Mashima, H., Ohnishi, H., Wakabayashi, K., et al.: "Batacellulin and activin A Coordinately convert amylase-secreting AR42J cells into insulin-secreting cell." J. Clin, Invest.(in press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yasuda,H.,Tanaka,S.,Ohnishi,H.,Mashima,H.,Ohgushi,N.,Mine,T.& Kajima,I: "Activin A: negative regulator of amylase secretion and cell proliferation in pancreatic acinar AR42J cells." Am. J. Physiol.267. G220-G226 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Furukawa,M.,Eto,Y.and Kojima,I.: "Expression of activin A in fetal rat pancreas." Endocrine J.42. 63-68 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Ohnishi,H.,Ohgushi,N.,Tanaka,S. Mashima,H.,Furukawa,M & Kojima I.: "Conversion of amylase-containing rat pancreatic acinar AR42J cells to neuron-like cells by activin A." J. Clin. Invest.(印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Mogami,H.,Kanzaki,M.,Nobusawa,R.,Zhang,YQ.,Furukawa,M.& Kojima,I.: "Modulation of ATP-sensitive potassium channel and voltage-dependent calcium channel by activin A in HIT-TI5 cells" Endocrinology. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Kojima,I.,Mogami,H.,Kawamura,N.and Shibata,H.: "Activin A inhibits cell-cycle progression induced by insulin-like growth factor-I" J.Endocrinol.137. 99-105 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kojima,I.,Mogami,H.,Shibata,H.and Ogata,E.: "Role of calcium entry and protein kinase C in the progression activity of insulin-like growth factor-I" J.Biol.Chem.268. 1003-1006 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kojima,I.,Mogami,H.,Kawamura,N.,Yasuda,H.and Shibata,H.: "Modulation of growth of vascular smooth muscle cells by activin A" Exp.Cell.Res.206. 152-156 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yasuda,H.,Mine,T.,Shibata,H.,Takeuchi,T.and Kojima,I.: "Activin A:an autocrine inhibitor of initiation of DNA Synthesis in rat hepatocytes." J.Clin.Invest.92. 1491-1496 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yasuda,H.,Inoue,K.,Shibata,H.,Takeuchi,T.and Kojima,I.: "Existnce of activin A in A- and D-cells of rat pancreatic islet" Endocrinology. 133. 624-630 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Shibata,H.,Yasuda,H.,Sekine,N.,Mine,T.and Kojima,I.: "Activin A increases cytoplasmic free calcium in rat pancreatic islet" FEBS Lett.329. 194-198 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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