• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Cellular Effects of Early Exposure to Sex Hormones

Research Project

Project/Area Number 04640690
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 動物形態・分類学
Research InstitutionYokohama City University

Principal Investigator

IGUCHI Taisen  横浜市立大学, 文理学部, 教授 (90128588)

Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsPerinatal treatment / Mouse / Reproductive organs / Estrogen / Oncogenes / Estrogen receptor / Apoptosis / Placental cells / 抗エストロゲン / がん遺伝子 / 雌性生殖器官 / 骨盤
Research Abstract

1.周生期に性ホルモンを投与されたマウス生殖器官の不可逆的増殖
卵巣摘出対照マウスの膣では,エストロゲンに反応して細胞増殖,分化がおこるが,その際,fos,junの_mRNAが一過性に発現するが,出生直後にエストロゲンを投与されたマウスの膣では,卵巣摘出により体内のエストロゲンを無くしても,fos,junの_mRNAが恒久的に発現していることを見いだした。また、周生期の合成エストロゲン投与による不可逆化膣には特異タンパク質が発現しており,EGFレセプターが減少していることを明らかにした。卵巣摘出により,一過性に出現するタンパク質を膣で見いだした。
2.生殖器官の分化および受容体の発現
雄性および雄性生殖器官のエストロゲン受容体の発現を経時的に調べた。出生日にエストロゲンを投与すると,12時間後にはエストロゲン受容体が子宮上皮細胞に発現した。ほとんどの雄性生殖器官は,出生直後にはエストロゲン受容体を発現していないが,出生直後エストロゲン刺激により,その受容体の発現が誘起されることを明らかにした。更に,ラットの発情周期と妊娠初期の子宮と膣におけるプロゲステロンレセプターの発現を免疫組織学的に調べた。
3.生殖器官の退化および妊娠依存性乳癌の退化過程における細胞死とプロテアーゼの発現
マウスの膣の退化過程では,細胞分裂活性の低下,メタロプロテアーゼに発現,およびアポトーシスが関与している。乳癌の退化過程では,細胞分裂活性の低下,アポトーシスが関与していることが明らかになった。
4.胎盤細胞の増殖機構
マウスの妊娠6および10日目の胎盤の栄養芽細胞はエストロゲン,プロゲステロ,EGF,TGF-alphaに対して増殖反応を示すが,14および18日の胎盤栄養芽細胞は増殖反応を示さないことを細胞培養系を用いて明らかにした。

Report

(3 results)
  • 1994 Annual Research Report
  • 1993 Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (55 results)

All Other

All Publications (55 results)

  • [Publications] Takamatsu,Y.: "Effects of neonatal exposure to diethylstilbestrol on protein expression by vagina and uterus in mice." In Vivo. 6. 1-8 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sato,T.: "Estrogen receptor expression in the genital tract of female mice treated neonatally with diethylstilbestrol." In Vivo. 6. 151-156 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Bern,H.A.: "Altered mammary responsiveness to estradiol and progesterone in mice exposed neonatally to diethylstilbestrol." Cancer Lett.63. 117-124 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu,Y.: "Effects of postpuberal treatment with progesterone on protein expression in vagina and uterus of mice exposed neonatally to diethylstilbestrol." In Vivo. 6. 261-269 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu,Y.: "Effects of postpuberal treatment with diethylstilbestrol and tamoxifen on protein expression in the vagina and uterus of neonatally diethylstilbestrol-exposed mice." In Vivo. 6. 271-278 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Chou,Y.-C.: "Effects of antiestrogens on adult and neonatal mouse reproductive organs." Reprod.Toxicol.6. 439-446 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi,Y.: "Comparative study of sexual dimorphism of the innominate bone in rodents and amphibians." Anat.Rec.234. 432-437 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi,Y.: "Effects of sex steroids on the development of sexual dimorphism in mouse innominate bone." Anat.Rec.234. 541-548 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi,T.: "Cellular effects of early exposure to sex hormones and antihormones." Int.Rev.Cytol.139. 1-57 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi,Y.: "Morphometric analysis of the pelvis in mice treated neonatally with tamoxifen." Anat.Rec.235. 126-130 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi,T.: "Developmental changes in mouse placental cells from several stages of pregnancy in vivo and in vitro." Biol.Reprod.48. 188-196 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Ohta,Y.: "Immunocytochemical localization of progesterone receptor in the reproductive tract of adult female rats." Biol.Reprod.48. 205-213 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu,Y.: "Persistent changes in protein synthesis by vagina of ovariectomized mice exposed neonatally to diethylstilbestrol." In Vivo. 7. 97-100 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Ohta,Y.: "Development and mitotic activity of the metrial gland in rat uterus during mid-pregnancy." In Vivo. 7. 121-126 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi,T.: "Epidermal growth factor receptor levels in reproductive organs of female mice exposed neonatally to diethylstilbestrol." Proc.Soc.Exp.Biol.Med.204. 110-116 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sato,T.: "Induction of estrogen receptor and cell division in genital tracts of male mice by neonatal exposure to diethylstilbestrol." Reprod.Toxicol.(in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 神谷清伸: "マウス生殖器管細胞に対するエストロゲンの作用機構." 横浜市立大学論叢自然科学. 43. 115-144 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 後藤芳任: "マウス妊娠依存性乳癌における増殖および退行の機構." 横浜市立大学論叢自然科学. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 茶山和敏: "コラーゲンゲル内三次元培養におけるマウス妊娠依存性乳癌(TPDMT-4)とその自律性進展株の増殖及び形態形成の比較." 乳癌基礎研究. 4(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 後藤芳任: "マウス妊娠依存性腫瘍における増殖および退行の機構." 乳癌基礎研究. 4(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi,T.: "Fourth Lake Shirakaba・Placenta Conference" Keiseisha,Tokyo, 88 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi,T.: "Protocols in Cell & Tissue Culture" John Wiley & Sons,England(in press),

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu, Y., T.Iguchi and N.Takasugi: "Effects of neonatal exposure to diethylstilbestrol on protein expression by vagina and uterus in mice." In Vivo. 6. 1-8 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sato, T., H.Okamura, Y.Ohta, S.Hayashi, Y.Takamatsu, N.Takasugi and T.Iguchi: "Estrogen receptor expression in the genital tract of female mice treated neonatally with diethylstilbestrol." In Vivo. 6. 151-156 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Bern, H.A., K.T.Mills, D.L.Hatch, P.L.Ostrander and T.Iguchi: "Altered mammary responsiveness to estradiol and progesterone in mice exposed neonatally to diethylstilbestrol." Cancer Lett.63. 117-124 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu, Y., T.Iguchi and N.Takaksugi: "Effects of postpuberal treatment with progesterone on protein expression in vagina and uterus of mice exposed neonatally to diethylstilbestrol." In Vivo. 6. 261-269 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu, Y., T.Iguchi and N.Takasugi: "Effects of postpuberal treatment with diethylstilbestrol and tamoxifen on protein expression in the vagina and uterus of neonatally diethylstilbestrol-exposed mice." In Vivo. 6. 271-278 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Chou, Y.-C., T.Iguchi and H.A.Bern.: "Effects of antiestrogens on adult and neonatal mouse reproductive organs." Reprod.Toxicol.6. 439-446 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi, Y., Y.Ohta, M.Asashima and T.Iguchi: "Comparative study of sexual dimorphism of the innominate bone in rodents and amphibians." Anat.Rec.234. 432-437 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi, Y., O.Taguchi, T.Noumura and T.Iguchi: "Effects of sex steroids on the development of sexual dimorphism in mouse innominate bone." Anat.Rec.234. 541-548 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi, T.: "Cellular effects of early exposure to sex hormones and antihormones." Int.Rev.Cytol.139. 1-57 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Uesugi, Y., T.Sato and T.Iguchi: "Morphometric analysis of the pelvis in mice treated neonatally with tamoxifen." Anat.Rec.235.126-130 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi, T., N.Tani, N.Fukatsu and Y.Ohta: "Developmental changes in mouse placental cells from several stages of pregnancy in vivo and in vitro." Biol.Reprod.48. 188-196 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Ohta, Y., T.Sato and T.Iguchi: "Immunocytochemical localization of progesterone receptor in the reproductive tract of adult female rats." Biol.Reprod.48. 205-213 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu, Y., T.Sato, Y.Hayashi, T.Iguchi and N.Takasugi: "Persistent changes in protein synthesis by vagina of ovariectomized mice exposed neonatally to diethylstilbestrol." In Vivo. 7. 97-100 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Ohta, Y., T.Sato and T.Iguchi: "Development and mitotic activity of the metrial gland in rat uterus during mid-pregnancy." In Vivo. 7. 121-126 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi, T., M.Edery, P.-S.Tsai, S.Ozawa, T.Sato and H.A.Bern: "Epidermal growth factor receptor levels in reproductive organs of female mice exposed neonatally to diethylstilbestrol." Proc.Soc.Exp.Biol.Med.204. 110-116 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sato, T., A.Chiba, S.Hayashi, H.Okamura, Y.Ohta, N.Takasugi and T.Iguchi: "Induction of estrogen receptor and cell division in genital tracts of male mice by neonatal exposure to diethylstilbestrol." Reprod.Toxicol.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi, T., T.Sato and Y.Ohta: "Mouse placental cells from several stages of pregnancy in vivo and in vitro. Fourth Lake Shirakaba Placenta Conference, Nakayama, T.and T.Makino (Eds.)." Keiseisha, Tokyo. 29-41 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Iguchi, T.and F.-D.A.Uchima: "Vaginal and uterine epithelial cells in serum-free collagen gel culture. Protocols in Cell & Tissue Culture, Griffiths, J.B., A.Doyle and D.G.Newell (Eds.)." John Wiley & Sons, England. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takamatsu,Y.,T.Iguchi and N.Takasugi: "Effects of neonatal exposure to diethylstilbestrol on protein expression by vagina and uterus in mice." In Vivo. 6. 1-8 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sato,T.,H.Okamura,Y.Ohta,S.Hayashi,Y.Takamatsu,N.Takasugi and T.Iguchi: "Estrogen receptor expression in the genital tract of female mice treated neonatally with diethylstilbestrol." In Vivo. 6. 151-156 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Bern,H.A.,K.T.Mills,D.L.Hatch,P.L.Ostrander and T.Iguchi: "Altered mammary responsiveness to estradiol and progesterone in mice exposed neonatally to diethylstilbestrol." Cancer Lett.63. 117-124 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takamatsu,Y.,T.Iguch and N.Takasugi: "Effects of postpubertal treatment with progesterone on protein expression in vagina and uterus of mice exposed neonatally to diethylstilbestrol." In Vivo. 6. 261-269 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takamatsu,Y.,T.Iguch and N.Takasugi: "Effects of postpubertal treatment with diethylstilbestrol and tamoxifen on protein expression in the vagina and uterus of neonatally diethylstilbestrol-exposed mice." In Vivo. 6. 271-278 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Chou,Y.-C.,T.Iguchi,and H.A.Bern: "Effects of antiestrogens on adult and neonatal mouse reproductive organs." Reprod.Toxicol.6. 439-446 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Uesugi,Y.,Y.Ohta,M.Asashima and T.Iguchi: "Comparative study of sexual dimorphism of the innominate bone in rodents and amphibians." Anat.Rec.234. 432-437 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Uesugi,Y.,O.Taguchi,T.Noumura and T.Iguchi: "Effects of sex steroids on the development of sexual dimorphism in mouse innominate bone." Anat.Rec.234. 541-548 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Iguch,T.: "Cellular effects of early exposure to sex hormones and antihormones." Int.Rev.Cytol.139. 1-57 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Uesugi,Y.,T.Sato and T.Iguchi: "Morphometric analysis of the pelvis in mice treated neonatally with tamoxifen." Anat.Rec.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Iguchi,T.,N.Tani,T.Sato,N.Fukatsu: "Developmental changes in mouse placental cells from several stages of pregnancy in vivo and in vitro." Biol.Reprod.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Ohta,Y.,T.Sato and T.Iguchi: "Immunocytochemical localization of progesterone receptor in the reproductive tract of adult female rats." Biol.Reprod.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takamatsu,Y.,T.Sato T.Iguchi and N.Takasugi: "Persistent changes in protein synthesis by vagainvagina of ovariectomized mice exposed neonatally to diethylstilbestrol." In Vivo. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 神谷 清伸,佐藤 友美,井口 泰泉: "マウス生殖器官細胞に対するエストロゲンの作用機構" 横浜市立大学論叢自然科学. 43. 115-144 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Iguchi,T.and F.-D.A.Uchima (Griffiths,J.B.et al.,Eds.): "Protocols in Cell & Tissue Culture" John Wiley & Sons, (1993)

    • Related Report
      1992 Annual Research Report

URL: 

Published: 1992-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi