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二本鎖RNAを用いたアジュバント併用経鼻不活化インフルエンザワクチンの開発

Research Project

Project/Area Number 06J00100
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Virology
Research InstitutionTokyo University of Science

Principal Investigator

一戸 猛志  Tokyo University of Science, 基礎工学研究科, 特別研究員(PD)

Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords高病原性鳥インフルエンザ / 経鼻ワクチン / アジュバント / 粘膜免疫 / H5N1 / 合成二本鎖RNA / 交叉防御 / Ampligen
Research Abstract

【目的】高病原性鳥インフルエンザウイルス(H5N1)のヒトでの感染がアジアを中心に増加し高い致死率を示しており、それらに対応できる交叉防御能のあるワクチンの開発が急務である。我々は2005/2006シーズンのインフルエンザ三価HAワクチンの経鼻接種によるH5N1ウイルスに対する交叉防御を調べる事を目的とした。
【材料と方法】本邦で認可されている三価インフルエンザHAワクチンをBALB/cマウスに経鼻接種及び皮下接種した。アジュバントとして合成二本鎖RNAであるpoly(I):poly(C_<12>U)(Ampligen[○!R])を用いた。ワクチン1μgをアジュバントと共にマウスへ3週間隔で3度経鼻又は皮下接種した。接種2週間後の血清中、鼻腔洗浄液中のウイルス特異的な抗体価をELISAで測定した。さらにワクチン接種2週間後に強毒H5N1株を1,000PFU経鼻感染させ(2μl/片鼻)、感染3日後の鼻腔洗浄液中のウイルス価をプラークアッセイ法にて測定し、マウスの生存率を14日間観察した。
【結果と考察】皮下接種群ではワクチン特異的な血液中のIgG抗体応答が、経鼻ワクチン接種群ではワクチン特異的な血清中のIgG、鼻腔洗浄液中のIgA抗体応答が誘導された。高病原性鳥インフルエンザウイルス(H5N1)による攻撃感染に対し、皮下接種群では防御効果が認められなかったが、経鼻接種群においてウイルス価の減少と生存率の上昇が認められた。アジュバント併用経鼻ワクチン群では、ワクチン株とは異なるH5N1ウイルス感染に対しても感染防御効果が見られた。このことからシーズナルインフルエンザワクチンの経鼻接種によりワクチン株と抗原性が異なる株が流行を起こしても、ある程度の感染防御効果が期待できることが示された。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (11 results)

All 2008 2007 2006

All Journal Article (10 results) (of which Peer Reviewed: 5 results) Book (1 results)

  • [Journal Article] Mechanism of NKT cell activation by intranasal coadministration of a-galactosylceramide, which can induce cross-protection against influenza viruses2008

    • Author(s)
      Ichinohe T^*, Kamijuku H^*, Nagata Y^*, Jiang X^*, Tashiro T, Mori K, Taniguchi M, Hase K, Ohno H, Shimaoka T, Yonehara S, Odagiri T, Tashiro M, Sata T, Hasegawa H, Seino K-i
    • Journal Title

      Mucosal Immunology(Nature Publishing Group) (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a mucosal vaccine for influenza viruses: preparation for a potential influenza pandemic2007

    • Author(s)
      Hasegawa H, Ichinohe T, Tamura S, Kurata T.
    • Journal Title

      Expert Review of Vaccines 6(2)

      Pages: 193-201

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prophylactic effects of chitin microparticles on highly pathogenic H5N1 influenza virus2007

    • Author(s)
      Ichinohe T, Nagata N, Strong P, Tamura S, Takahashi H, Ninomiya A, Imai M, Odagiri T, Tashiro M, Sawa H, Chiba J, Kurata T, Sata T, Hasegawa H.
    • Journal Title

      Journal of Medical Virology 79(6)

      Pages: 811-819

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intranasal immunization with H5N1 vaccine plus Poly I:Poly C12U, a Toll-like receptor agonist, protects mice against homologous and heterologous virus challenge2007

    • Author(s)
      Ichinohe T, Kawaguchi A, Tamura S, Takahashi H, Sawa H, Ninomiya A, Imai M, Itamura S, Odagiri T, Tashiro M, Chiba J, Sata T, Kurata T, Hasegawa H.
    • Journal Title

      Microbes and Infection 9(11)

      Pages: 1333-1340

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cross-protection against H5N1 influenza virus infection is afforded by intranasal inoculation with seasonal trivalent inactivated influenza vaccine2007

    • Author(s)
      Ichinohe T, Tamura S, Kawaguchi A, Ninomiya A, Imai M, Itamura S, Odagiri T, Tashiro M, Takahashi H, Sawa H, Mitchell WM, Strayer DR, Carter WA, Chiba J, Kurata T, Sata T, Hasegawa H.
    • Journal Title

      The Journal of Infectioius Diseases 196(9)

      Pages: 1313-1320

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prophylactic effects of chitin microparticles on highly pathogenic H5N1 influenza virus.2007

    • Author(s)
      Ichinohe T, Nagata N, Strong P, Tamura S, Takahashi H, Ninomiya A, Imai M, Odagiri T, Tashiro M, Sawa H, Chiba J, Kurata T, Sata T, Hasegawa H.
    • Journal Title

      Journal of medical virology (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thymus-derived leukemia-lymphoma in mice transgenic for the Tax gene of human T-lymphotropic virus type I.2006

    • Author(s)
      Hasegawa H, Sawa H, Lewis MJ, Orba Y, Sheehy N, Yamamoto Y, Ichinohe T, Tsunetsugu-Yokota Y, Katano H, Takahashi H, Matsuda J, Sata T, Kurata T, Nagashima K, Hall WW.
    • Journal Title

      Nature medicine 12(4)

      Pages: 466-472

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Protection against influenza virus infection by intranasal vaccine with surf clam microparticles (SMP) as an adjuvant.2006

    • Author(s)
      Ichinohe T, Watanabe I, Tao E, Ito S, Kawaguchi A, Tamura S, Takahashi H, Sawa H, Moriyama M, Chiba J, Komase K, Suzuki Y, Kurata T, Sata T, Hasegawa H.
    • Journal Title

      Journal of medical virology 78(7)

      Pages: 954-963

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Tristetraprolin inhibits HIV-1 production by binding to genomic RNA.2006

    • Author(s)
      Maeda M, Sawa H, Tobiume M, Tokunaga K, Hasegawa H, Ichinohe T, Sata T, Moriyama M, Hall WW, Kurata T, Takahashi H.
    • Journal Title

      Microbes and Infection 8(11)

      Pages: 2647-2656

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Intranasal administration of adjuvant-combined recombinant influenza virus HA vaccine protects mice from the lethal H5N1virus infection.2006

    • Author(s)
      Asahi-Ozaki Y, Itamura S, Ichinohe T, Strong P, Tamura S, Takahashi H, Sawa H, Moriyama M, Tashiro M, Sata T, Kurata T, Hasegawa H.
    • Journal Title

      Microbes and Infection 8(12-13)

      Pages: 2706-2714

    • Related Report
      2006 Annual Research Report
  • [Book] 臨床免疫・アレルギー科2007

    • Author(s)
      長谷川秀樹、一戸猛志
    • Total Pages
      7
    • Publisher
      科学評論社
    • Related Report
      2007 Annual Research Report

URL: 

Published: 2006-04-01   Modified: 2024-03-26  

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