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Studies on immune mechanisms involved in psoriasis and related inflammator dermatoses

Research Project

Project/Area Number 08457234
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Dermatology
Research InstitutionTohoku University

Principal Investigator

TAGAMI Hachiro  Tohoku U.Gr.Sch.Med., Proffessor, 医学部, 教授 (60026911)

Co-Investigator(Kenkyū-buntansha) FUNAYAMA Michitaka  Tohoku U.Gr.Sch.Med., Assistant, 医学部・附属病院, 助手 (90292333)
TAKAHASHI Kazuhiro  Tohoku U.Gr.Sch.Med., Assistant, 医学部・附属病院, 助手 (20226822)
TERUI Tadashi  Tohoku U.Gr.Sch.Med., Lecturer, 医学部・附属病院, 講師 (30172109)
AIBA Setsuya  Tohoku U.Gr.Sch.Med., Assistant Professor, 医学部, 助教授 (80159269)
田中 美佐子  東北大学, 医学部, 助手 (90271907)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥8,000,000 (Direct Cost: ¥8,000,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1996: ¥5,400,000 (Direct Cost: ¥5,400,000)
Keywordspsoriasis / complement / cytokine / melanocyte / stratum corneum / chemotaxis / dendritic cell / chemokine / ケラチノサイト / C3 / 掌蹠膿庖症 / UVB / PUVA / 掌〓膿胞症 / 局溶血清連鎖球菌 / スーパー抗原
Research Abstract

Recent studies have suggested that psoriasis is an immune mediated genodermatosis. We have focused on the complement system, more specific inflammatory mediators involved in transepidermal leukocyte chemotaxis than various inflammatory cytokines which are also produced in any kinds of dermatitis. As a result, after interaction between the body fluid and the stratum comeum, we found the adhesion of C3bi on the surface of the stratum corneum where activated leukocytes attach to release various monocyte-chemotactic factors. In addition to MIP-1alpha and MIP 1beta, we found the presence of different chemotactic factor whose molecular mass was larger than that of these chemokines.
We tried to elucidate the pathomechanisms of psoriasis by the study of the interaction between bacterial superantigens and peripheral blood lymphocytes of psoriatic patients, because beta-streptococcal infection often induces the development guttate psoriasis or exacerbates the disease itself. We found that the patients' lymphocytes showed significantly lower response to beta-streptococcal superantigens Vbeta8 and CAP n the patients' lymphocytes.
Similar reduced responses of lymphocytes were found to OK-432 that is also a superantigen isolated from beta-hemolytic streptococcus pyogenes. In contrast, such a reduction was not found with the peripheral blood lymphocytes from patients with pustulosis palmaris et plantaris (PPP) although the lymphocytes from patients with acrodermatitis continua which closely resembles PPP clinically showed a greatly reduced response. These results suggest that psoriasis and PPP are different dermatoses despite the resemblance of their clinical features.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Tagami H etc: "Overview of Immunology, In Roenigk HH, Jr,Maibach" Marcel Dekker. 191-208 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ozawa M etc: "Release of monocyte chemotactants by polymorphonuelear lenkooytes simulated by their adheison to stratum corneum opsonized" Exp Dermatel. 7. 151-156 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Horiuchi N etc: "Peripheral blood lymphocyles from psoriatic patients are hyporesponsive to β-streptocooral superantinges" Br J Dermatol. 138. 229-235 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tagami H,Aiba S: "Overview of Immunology. In : Roenigk HH,Jr, Maibach HI : Psoriasis. Third edition, Revised and Expanded" Marcel Dekker. 191-208 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ozawa M,Terui T,Tanita M,Kato T,Tagami H: "Release of monocyte chemotactants by polymorphonuclear leukocytes stimulated by their adhesion to stratum corneum opsonized via complement activation, measured with a human acute monocytic leukemic cell line, THP-1" Exp Dermatol. 7. 151-156 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Horiuchi N,Aiba S,Ozawa H,Sugawara S,Rikiishi H,Kumagai K,Tagami H: "Peripheral blood lymphocytes from psoriatic patients are hyporesponsive to beta-streptococcal superantigens" Br J Dermatol. 138. 229-235

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ozawa M et al: "Release of monocyte chemoattractants by polymorphonuclear leukocyte stimulated by their adhesion to stratum corneum opsonized via complement activation,measured with a human acute monocyteic leukemic cell line.THP-1" Experimental Dermatology. 7(4). 151-156 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 田上八朗: "真菌と皮膚の免疫反応" 臨床と微生物. 24・6. 871-877 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tagami H,Aiba S: "Overview of Immunology In:Roenigk HH Jr.Maibach HI(eds)Psoriasis.Third Edition,Revised and Expanded" Marcel Dekker,Inc, 18(191-208) (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tagami H: "Triggering factors" 15・5. 677-685 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Horiuchi N, Aida S, Ozawa H, Sugawara S, Rikiisi H, Kumagai K, Tagami H: "Br J Dermatol" Peripheral blood lymphocytes from psoriatic patients are hyporesponsive to β-streptococcal superantigens. 132 2. 229-235 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Ozawa M, Terui T, Tanita M, Kato T, Tagami H: "Exp Dermatol" Release of monocyte chemoattractants by polymorphonuclear leukocytes stimulated by their adhesion to stratum corneum opsonized via complement activation measured with a human acute monocyte leukemic cell line,THP-1. 7(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Tagami H, Aida S: "Skin Immune System,Second Edition (Ed : bos,J)" CRC Press LLC,Boca Raton,USA, 523-530 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Tagami H et al: "Fungal cells in biodefense mechanism (Eds : Suzuki S.& Suzuki M)" Saikon Pub,Tokyo,Japan, 89-95 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Terui T et al: "C3 production of cultured human epidermal keratinocytes is enhanced by TNF-γand TNF-αthrough different" J Invest Dermatol. 108. 62-67 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2017-10-11  

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