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生分解性ポリマービーヅを用いた経口免疫法の開発と経口免疫寛容の解析への応用

Research Project

Project/Area Number 09557047
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 内科学一般
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

WAKATSUKI Yoshio  Kyoto University, Faculty of Medicine, Lecturer, 医学研究科, 講師 (40220826)

Co-Investigator(Kenkyū-buntansha) ISHIHARA Yasunobu  SHIONOGI&CO., LTD., Senior Researcher, 新薬研究所, 主任研究員
TABATA Yasuhiko  Kyoto University, Institute for Frontier med.sci., Professor, 再生医科学研究所, 助教授 (50211371)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1999: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1998: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywordsimmunology / oral vaccine / oral tolerance / drug Delivery System / mucosal immunology / 免疫寛容 / Drug Delivery
Research Abstract

Oral immunization of antigens has long been recognized as a method to prevent or delay the onset of the diseases associated with untoward immune responses to self and non-self antigens. Although oral administration of antigens offers a convenient way to induce systemictolerance, its therapeutic potential has been seriously limited by the fact that it requires repeated feeding of a large amount of antigens and that it may deteriorate ongoing autoimmune diseases when autoantigens are employed. We have previously shown that orally administered poly-D,L-lactic accid (PDLLA) microspheres containing an antigen were selectively distributed to Peyer's patches (PP) and systemic-lymphoid tissues according to their diameter and then releses the antigen over a long period of time. We reported that a single dose of intragastric imunization with a PDLLA microsphere of appropropriate diameter size containing 2 mg of OVA was as effective as 100 mg of water soluble OVA to suppress OVA-specific IgG ad DTH response. This was associated with a large incresae of IFN-g production by PP T cells stimulated with an antigen and a small increase in secretory IgA specific to OVA. In contrast, administration of an antigen encapsulatead in another appropriate diameter size led to an enhanced OVA-specific IgG response and no significant increase in OVA-specific secretory IgA. Thus, by utilizing microspheres of an appropriate diameter as a vaccination vehicle, we were able to selectively induce both systemic tolerance and sensitization by oral ingestion of single low dose of an antigen.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Yoichi Matsunaga, Yoshio Wakatsuki, et al: "Oral immunization with size-purified microsphere beads as a vehicle selectively induces systemic tolerance and sensitization"Vaccine. Sept. (in press). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Sakata-Kaneko, Y. Wakatsuki, et al: "Altered Th1/Th2 Commitment in Human CD4 T cells With Aging"Clin Exp Immunology. (in press). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yasuhiko Shirai, Yoshio Wakatsuki, et al: "Induction and Maintenance of Immune Effector Cells in the Gastric Tissue in Mice Orally Immunized to Helicobacter pylori Requires Salivary Glands"Gastroenterology. 118. 749-759 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoshida, M.,Wakatsuki, Y., et al: "Cloning and characterization of a novel membrane-associated antigenic protein of Helicoobacter pylori"Infect Immun. 67(1). 286-293 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kweon, M. N.,Fujihashi, K., Wakatsuki, Y. et. Al: "Mucosally induced systemic T cell unresponsiveness to ovalbumin requires CD40 ligand-CD40 interactions"J immunol. 162(4). 1904-1909 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Usui, T., Wakatsuki, Y., et. Al: "Overexpression of B cell-specific activator protein (BSAP/Pax-5) in a late B cell is sufficient to suppress differentiation an Ig high producer cell with plasma cell phenotype"J Immunol. 158(7). 3197-3204 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoichi Matsunaga, Yoshio Wakatsuki, Yasuhiko Tabata, et. Al: "Oral Immunization with size-purified microsphere beads as a vehicle selectively induces systemic tolerance and sensitization"Vaccine. (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Sakata-Kaneko, Y. Wakatsuki et al: "Altered Th1/Th2 Commitment in Human CD4 T cells With Aging"Clin Exp Immunology. (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yasuhiko Shirai, Yoshio Wakatsuki Takashi Kusumoto, et al.: "Induction and Maintenance of Immune Effector Cells in the Gastric tissue in Mice Orally Immunized to H. pylori requires salivary Glands"Gastoenterology. (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoshida, M., Wakatsuki, Y., et al: "Cloning and characterization of a novel membrane-associated antigenic protein of Helicobacter pylori"Infect Immun. 67(1). 286-93 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kweon, M. N., Fujihashi, K., Wakatsuki, Y. et.al: "Mucosally induced systemic T cell unresponsiveness to ovalbumin requires CD40 ligand-CD40 interactions"J Immunol. 162(4). 1904-9 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Usui, T., Wakatsuki, Y., et.al: "Overexpression of B cell-specific activator protein (BSAP/Pax-5) in a late B cell is sufficient to suppress differentiation to an Ig high producer cell with plasma cell phenotype"J Immunol. 158(7). 3197-2041 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoichi Matsunaga,Yoshio Wakatsuki,Yasuhiko Tabata et al.: "Oral Immunization with size-purified microsphere beads as a vehicle selectively induces systemic tolerance and sensitization"Vaccine. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yasuhiko Shirai,Yoshio Wakatsuki,Takashi Kusumoto et al.: "Induction and Maintonance of Immune Effector Cells in the Gastric tissue in Mice Orally Immunized to H. pylori requires salivary Glands"Gastroenterology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Toshiyuki Itoh,Yoshio Wakatsuki et.al.: "The vast majority of gastric T cells are polarized to produce T helper 1 type cytokines upon antigenic stimulation despite the absebnce of Helicobacter pylori infection"J Gastroenterology. 34. 560-570 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] S.Sakata-Kaneko,Y.Wakatsuki et al.: "Altered Th1/Th2 Commitment in Human CD4 T cells With Aging"Clin Exp Immunology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshida M.,Wakatsuki Y.,et al.: "Cloning and characterization of a novel membrane-associated antigenic protein of Helicobacter pylori." Infection and Immunity. 67. 286-293 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 若月芳雄: "H.pylori感染と胃粘膜の免疫応答" 日本臨床. 57. 23-31 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kweon NM,Fujihashi K,Wakatuki Y et al: "Mucosally Induced Systemic T Cell Unresponsiveness to Ovalbumin requires CD40 Ligand-CD40 IO Interactions" Journal of Immunology. 162. 1904-1909 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sakata-Kaneko S,Wakatsuki Y,et. al: "Lysophosphatidylcholine upregulates CD40 ligand expression in newly activated human CD40+T sells" FEBS Letter. 433. 161-165 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 若月芳雄: "小腸上皮細胞間リンパ球の活性化機構" 臨床科学. 34. 1653-1661 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 若月芳雄: "H.pylori感染宿主の免疫" Molecular Medicine. 35(3). 302-307 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Usui T., Wakatsuki Y., et al: "Overexpression of B Cell-Specific Activator Protein (BSAP/Pax-5) in a late B Cell is Sufficient to Suppress Diifferention to an Ig High Producer Cell with Plasma Cell Phenotype" Journal of Immunology. 158. 3197-3204 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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