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2010 Fiscal Year Annual Research Report

スギ花粉アレルギーに対する抗原特異的抑制性T細胞の誘導の検討

Research Project

Project/Area Number 20591342
Research InstitutionMie University

Principal Investigator

山中 恵一  三重大学, 医学部附属病院, 講師 (70314135)

Co-Investigator(Kenkyū-buntansha) 水谷 仁  三重大学, 大学院・医学系研究科, 教授 (30115737)
Keywords花粉症 / 抑制性T細胞 / 減感作療法
Research Abstract

三重大学附属病院を含めた耳鼻咽喉科では重症のスギ花粉症患者に対して、スギ花粉標準化アレルゲン治療エキスを用いた皮下及び経口の減感作療法を施行し、鼻粘膜・眼症状の改善など良好な結果を得ている。申請者らは、この減感作治療が効果的な理由をスギ花粉標準化アレルゲン治療エキスの投与によりIL-10産生抑制性T細胞(以下Tr1と略する)が誘導され、飛散した花粉によるT細胞の反応増殖を抑制しているという結果を発見しこれを報告した(JACI,124,842,2009)。
舌下免疫療法は臨床的には特に小児で有効であるためTr1誘導が起こるか否か小児を対象に前向きの検査を施行した所、予想された通りTr1の値は経時的な上昇をみた。患者の末梢血単核球においてIL-10産生の単球に着目した所、その割合も経時的な増加を示した。つまり単球からのIL-10産生も誘導可能である事が判明した。さらにTr1やIL-10産生単球の割合を花粉症患者と健常人で比較した所、花粉症患者では健常人に比べて両者の割合が低下している事が分かった。すなわちIL-10産生能の低下をアレルギー性疾患への罹患のしやすさは何らかの相関がある可能性が示唆された(Allergology International,60,45,2011)。
Tr1およびIL-10産生単球の研究は、花粉症、アトピー性皮膚炎を含めたアレルギー性疾患に於いて、病態解明や新たなエピトープ特異的治療法の開発に役立ち、アレルギー性疾患の治療に貢献できる。

  • Research Products

    (13 results)

All 2011 2010

All Journal Article (13 results) (of which Peer Reviewed: 13 results)

  • [Journal Article] SLIT improves cedar pollinosis by restoring IL-10 production from Tr1 and monocytes~IL-10 productivity is critical for becoming allergic~2011

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

      Allergology International

      Volume: 60 Pages: 45-51

    • Peer Reviewed
  • [Journal Article] High scatter T cells (T_<HS>) : a reliable biomarker for malignant T cells in cutaneous T cell lymphoma2011

    • Author(s)
      RA.Clark, K.Yamanaka, et al
    • Journal Title

      Blood

      Volume: 117 Pages: 1966-1976

    • Peer Reviewed
  • [Journal Article] Possible case for false-positive reaction in serum 5-S-cysteinyldopa levels in a patient with malignant melanoma by ingestion of Agaricus blazei Murrill extract.2011

    • Author(s)
      H.Konishi, K.Yamanaka, et al
    • Journal Title

      J Dermatol

      Volume: 37 Pages: 773-775

    • Peer Reviewed
  • [Journal Article] Propionibacterium acnes vaccination induces regulatory T cells and Th1 immune responses and improves mouse atopic dermatitis2011

    • Author(s)
      H.Kitagawa, K.Yamanaka, et al
    • Journal Title

      Experimental Dermatology

      Volume: 20 Pages: 157-158

    • Peer Reviewed
  • [Journal Article] 1,24-Dihydroxyvitamin D(3) (tacalcitol) prevents skin T-cell infiltration.2010

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

      Br J Dermatol

      Volume: 162 Pages: 1206-1215

    • Peer Reviewed
  • [Journal Article] Restoration of peripheral blood T cell repertoire complexity during remission in advanced cutaneous T cell lymphoma.2010

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

      Arch Dermatol Res

      Volume: 302 Pages: 453-459

    • Peer Reviewed
  • [Journal Article] Granzyme B is a novel interleukin-18 converting enzyme2010

    • Author(s)
      Y.Omoto, K.Yamanaka, et al
    • Journal Title

      Journal of Dermatological Science

      Volume: 59 Pages: 129-135

    • Peer Reviewed
  • [Journal Article] Immunohistochemical study of cytokeratin expression in nevus sebaceous2010

    • Author(s)
      I.Kurokawa, K.Yamanaka, et al
    • Journal Title

      The International Society of Dermatology

      Volume: 49 Pages: 402-405

    • Peer Reviewed
  • [Journal Article] Japanese Spotted Fever with acute hepatic failure : Was it associated with Epstein-Barr virus?2010

    • Author(s)
      M.Kondo, K.Yamanaka, et al
    • Journal Title

      Int J Dermatol

      Volume: 49 Pages: 1403-1405

    • Peer Reviewed
  • [Journal Article] Topical treatment with incision and antiseptic may prevent the severity of Japan spotted fever.2010

    • Author(s)
      M.Kondo, K.Yamanaka, et al
    • Journal Title

      J Dermatol

      Volume: 37 Pages: 835-836

    • Peer Reviewed
  • [Journal Article] Treatment of cloth with a fabric softener ameliorates skin dryness2010

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

      Journal of Dermatology

      Volume: 37 Pages: 1-8

    • Peer Reviewed
  • [Journal Article] Primary cutaneous apocrine carcinoma arising within a congenital nevus : Keratins and filaggrin expression suggesting differentiation into the secretory cells of apocrine glands2010

    • Author(s)
      Y.Senba, K.Yamanaka, et al
    • Journal Title

      ONCOLOGY LETTERS

      Volume: 1 Pages: 413-416

    • Peer Reviewed
  • [Journal Article] Epidermal cyst with pilomatricoma (follicular hybrid cyst) : immunohistochemical study with epithelial keratins and filaggrin.2010

    • Author(s)
      N.Tsuji, K.Yamanaka, et al
    • Journal Title

      J Dermatol

      Volume: 37 Pages: 922

    • Peer Reviewed

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Published: 2012-07-19  

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