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春季カタルに伴う角膜障害における角膜実質細胞の関与の検討

Research Project

Project/Area Number 14770959
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionYamaguchi University

Principal Investigator

福田 憲  山口大学, 医学部, 寄附講座教員 (70335751)

Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2003: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2002: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywords角膜実質細胞 / eotaxin / ICAM-1 / VCAM-1 / IFN-γ
Research Abstract

本年度は,角膜実質細胞によるケモカインおよび接着分子の発現に対する種々の抗炎症薬の影響をタンパク質レベルおよびmRNAレベルでの比較検討を行った。
1)培養ヒト角膜実質細胞にTNF-αにIL-4を同時に添加して培養すると,eotaxinの発現は相乗的に促進された。この時,副腎皮質ステロイド剤であるdexamethasoneで前処理しておくとeotaxin蛋白の産生は濃度依存的に抑制された。しかしながら,cyclosporin AおよびFK-506で前処理を行ってもeotaxin蛋白の産生は抑制されなかった。また,TNF-α,とIL-4の同時刺激によって促進したeotaxin mRNAはdexamethasoneの前処理により濃度依存的に抑制された。
2)培養ヒト角膜実質細胞にTNF-αを添加して培養すると,角膜実質細胞のICAM-1の発現は促進された。この時,dexamethasoneで前処理しておくとICAM-1の発現は濃度依存的に抑制された。しかしながら,cyclosporin AおよびFK-506で前処理を行ってもICAM-1の発現は抑制されなかった。
3)培養ヒト角膜実質細胞は,TNF-αとIL-4の同時刺激によりてVCAM-1の発現を亢進した。この時,dexamethasoneの前処理によりVCAM-1の発現は濃度依存的に抑制されたが,cyclosporin AおよびFK-506で前処理を行っても抑制されなかった。

Report

(2 results)
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Ken Fukuda, et al.: "Differential expression of thymus- and activation-regulated chemokine (CCL17) and macrophage-derived chemokine (CCL22) by human fibroblasts from cornea, skin, and lung."The Journal of Allergy and Clinical Immunology. 111・3. 520-526 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoki Kumagai, et al.: "Expression of functional ICAM-1 on cultured keratocytes induced by tumor necrosis factor-α."Japanese Journal of Ophthalmology. 47・2. 134-141 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoki Kumagai, et al.: "Synergistic effect of TNF-α and either IL-4 or IL-13 on VCAM-1 expression by cultured human corneal fibroblasts."Cornea. 22・6. 557-561 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Qin Li, et al.: "Enhancement by neutrophils of collagen degradation by corneal fibroblasts."Journal of Leukocyte Biology. 74・3. 412-419 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ying Lu, et al.: "Inhibition by triptolide of IL-1-induced collagen degradation by corneal fibroblasts"Investigative Ophthalmology and Visual Science. 44・12. 5082-5088 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoki Kumagai, et al.: "Active matrix metalloproteinases in the tear fluid of individuals with vernal keratoconjunctivitis"The Journal of Allergy and Clinical Immunology. 110・3. 489-491 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ken Fukuda, et al.: "Inhibition of eotaxin expression in human corneal fibroblasts by interferon-γ"International Archives of Allergy and Clinical Immunology. 129・2. 138-144 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yoichiro Fujitsu, et al.: "IL-4-induced cell proliferation and production of extracellular matrix proteins in human conjunctival fibroblasts"Experimental Eye Research. 76・1. 107-114 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ken Fukuda, et al.: "Differential expression of thymus-and activation-regulated chemokine (CCL17) and macrophage-derived chemokine (CCL21) by human fibroblasts from cornea, skin, and lung"The Journal of Allergy and Clinical Immunology. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Naoki Kumagai, et al.: "Expression of functional ICAM-1 on cultured keratocytes induced by tumor necrosis factor-α"Japanese Journal of Ophthalmology. (in press). (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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