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子宮頚部への白血球遊走制御:ケモカイン受容体阻害剤による早産治療薬開発の試み

Research Project

Project/Area Number 15659393
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Obstetrics and gynecology
Research InstitutionKyoto University

Principal Investigator

伊東 宏晃  京都大学, 医学研究科, 講師 (70263085)

Co-Investigator(Kenkyū-buntansha) 佐川 典正  三重大学, 医学部, 教授 (00162321)
由良 茂夫  京都大学, 医学研究科, 助手 (60335289)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2004: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2003: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords妊娠 / 分娩 / 早産 / 子宮頸管熟化 / ケモカイン / 伸展刺激
Research Abstract

(1)児頭下降による周期的伸展刺激が子宮頚部への好中球遊走に及ぼす影響の検討:
担当者;伊東宏晃、佐川典正
1)分娩発来直前の家兎の子宮頚部を採取したところ著明な白血球侵潤を認め、その白血球級の約80%は偽好酸球(ヒトの好中球に相当する)であった。
2)陣痛発来後のヒト頚管粘液において、好中球を遊走するCXCケモカインのなかでIL-8濃度を測定したところ、子宮口の開大につれて有意に濃度が上昇した。
3)培養ヒト子宮頚部線維芽細胞に対して、コンピューター制御により陣痛を模した周期的な伸展刺激を加えると、IL-8分泌並びに遺伝子発現が有意に亢進した(Mol Hum Reprod、10;573.2004)。
4)陣痛による子宮頚部への周期的な伸展刺激は好中球の遊走を惹起する機序に関与している可能性が示唆された。
(2)児頭下降による周期的伸展刺激が子宮頚部への単球/マクロファージ遊走に及ぼす影響の検討:
担当者;伊東宏晃、由良茂夫
1)分娩発来直前の家兎の子宮頚部を採取したところ著明な白血球侵潤を認め、その白血球球の約10%は単球系の細胞であった。
2)陣痛発来後のヒト頚管粘液において、好中球を遊走するCCケモカインのなかでMCP-3濃度を測定したところ、子宮口の開大につれて有意に濃度が上昇した。
3)培養ヒト子宮頚部線維芽細胞に対して、コンピューター制御により陣痛を模した周期的な伸展刺激を加えると、MCP-3分泌並びに遺伝子発現が有意に亢進した(Mol Hum Reprod、10;573.2004)
4)陣痛による子宮頚部への周期的な伸展刺激は単球/マクロファージの遊走を惹起する機序に関与している可能性が示唆された

Report

(2 results)
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (12 results)

All 2005 2004 Other

All Journal Article (6 results) Publications (6 results)

  • [Journal Article] Experimental Transplantation Study for Possible Transformation of Bone Marrow Cells in the Mouse Placenta.2005

    • Author(s)
      Kakui K, Itoh H他
    • Journal Title

      Placenta (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cyclic Mechanical Stretch Augments both Interleukin-8 and Monocyte Chemotactic Protein-3 Production in the Culture Human Uterine Cervical Fibroblast Cells2004

    • Author(s)
      Takemura M, Itoh H他
    • Journal Title

      Mol Hum Reprod 10

      Pages: 573-580

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Augmented eNOS protein expression in human pregnant myometrium : Possible involvement of eNOS promoter activation by estrogen via both ERα and ERβ.2004

    • Author(s)
      Kakui K, Itoh H他
    • Journal Title

      Mol Hum Reprod 10

      Pages: 115-122

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 17β-Estradiol up-regulates prostacyclin production in cultured human uterine myometrial cells via augmentation of both cyclooxygenase-1 and prostacyclin synthase expression2004

    • Author(s)
      Korita D, Itoh H他
    • Journal Title

      J Soc Gynelcol Investig 11

      Pages: 457-464

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cyclic mechanical stretch and interleukin-1α synergistically up-reulate prostacyclin secretion in cultured human uterine myometrial cells2004

    • Author(s)
      Korita D, Itoh H他
    • Journal Title

      Gynecol Endocrinol 18

      Pages: 130-137

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Significant increase in maternal plasma leptin concentration in induced delivery : A possible contribution of pro-inflammatory cytokines to placental leptin secretion2004

    • Author(s)
      Nuamah MA, Itoh H他
    • Journal Title

      Endocr J 51

      Pages: 177-187

    • Related Report
      2004 Annual Research Report
  • [Publications] Kakui K, Itoh H 他: "Augmented eNOS protein expression in human pregnant myometrium : Possible involvement of eNOS promoter activation by estrogen via both ERα and ERβ."Mol Hum Reprod. 10. 115-122 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Korita D, Itoh H 他: "Cyclic mechanical stretch and interleukin-1α synergistically up-regulate prostacyclin secretion in cultured human uterine myometrial cells"Gynecol Endocrinol. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nuama MA, Itoh H 他: "Significant increase in maternal plasma leptin concentration in induced delivery : A possible contribution of pro-inflammatory cytokines to placental leptin secretion"Endocr J. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nuama.MA, Itoh H 他: "Free-to-total leptin ratio in maternal plasma is constant throughout human pregnancy"Endocr J. 50. 421-428 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kakui K, Itoh H 他: "Expression of nitric oxide synthase isoforms in the human placenta is not altered by labor"Endocr J. 50. 412-415 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sekiyama K, Itoh H 他: "Successful management of a pregnant woman with heterozygous protein C deficiency by activated protein C concentrate."J Obstet Gyneaecol Res. 50. 412-415 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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