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

Developmental toxicity of endocrine disruptors in the zebrafish embryo.

Research Project

Project/Area Number 12660288
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied veterinary science
Research InstitutionSchool of Veterinary Medicine, Rakuno Gakuen University

Principal Investigator

HIRAGA Takeo  School of Veterinary Medicine, Rakuno Gakuen University, Professor, 獣医学部, 教授 (30112577)

Co-Investigator(Kenkyū-buntansha) TERAOKA Hiroki  School of Veterinary Medicine, Rakuno Gakuen University, Assistant Professor, 獣医学部, 講師 (50222146)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2000: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordsendocrine disrupter / developmental toxicity / zebra fish / dioxin / AhR / apoptosis / hypoplasia of jaw / tributyl tin / 脳のアポトーシス / 動物実験モデル / スズ / エストロゲン / 分子生物学
Research Abstract

The effects of 2, 3, 7,8-tetxachbrodibenzovrdbxin (TCDD) and tributyl tin (TBT) exposure on central nervous system, lower jaw development and edema were investigated in early zebrafish (Danio rerio) embryos. The results are summarized as follow :
1.TCDD exposure induced the occurrence of apoptotic cell death during the early stage of development in the dorsal midbrain of zebrafish. Some experiments showed that TCDD induced apoptosis could be related to aryl hydrocarbon receptor (AHR) activation, induction of cytochrome P450 1A (CYP1A) and oxidative stress. Moreover, we determined the complete CDNA sequence of a CYP1A open reading frame with both 5'- and 3'-ends in zebrafish
2.TCDD retarded lower jaw development in a concentration-dependent manner. Initially, TCDD may act directly on the lower jaw development. Reductions in hypobranchial blood flow occurred after the initial retardation in lower jaw development had com apparent, and may contribute further to the effect. From the whole-mount in situ hybridization and immunohistochemical method, sonic hedgehog protein and its receptors are strongly suggested to be involved in a jaw development.
3.TBT exposure induced general edema caused by circulation failure in zebrafish embryos.
These results suggest that the zebrafish have many advantages as a useful vertebrate model to detect the toxicity of endocrine disrupters.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] Dong, W., Teraoka, H., Kondo, S., Hiraga, T.: "2,3,7,8-tetrachlorodibenzo-p-dioxin induces apoptosis in the dorsal midbrain of zebrafish embryos by activation of aryihydrocarbon receptor"Neurosci. Lett.. 303. 169-172 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Teraoka, H., Maruyama, Y, Takehana, K., Iwanaga, T., Hiraga, T., Fujita, S., Ohta, T.: "Ca^<2+> signaling in porcine duodenal glands by muscarinic receptor activation"Am. J. Physiol.. 280. G729-G737 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Maruyama, Y., Teraoka, H., Iwata, H., Kazusaka, A., Fujita, S.: "Inhibitory effects of endogenous dopaminergic neurotoxin, norsalsolinol on dopamine secretion in PC12 rat pheochromocytoma cells"Neurochem. Int.. 38. 567-572 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kitazawa, T., Nakagoshi, K., Teraoka, H., Taneike, T.: "5HT7 receptor and beta2-adrenoceptor share in the inhibition of porcine uterine contractility in a muscle layer-dependent manner"Eur. J. Pharmacol.. 433. 187-197 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Teraoka, H., Dong, W., Ogawa, S., Tsukiyama, S., Okuhara, Y., Niiyama, M., Ueno, N., Peterson, R.E., Hiraga, T.: "2,3,7,8 -Tetrachlorodibenzo-p-dioxin toxicity in zebrafish embryo : Altered regional blood flow and impaired lower jaw development"Toxicol. Sci.. 65. 192-199 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yamazaki, K., Teraoka, H., Dong, W., Stegeman, J.J., Hiraga, T.: "cDNA cloning and expression of cytochrome P450 1A in zebrafish embryos"J. Vet. Med. Sci., Accepted with revision.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dong, W., Teraoka, H., Yamazaki, K., Tsukiyama, S., Imani, S., Imagawa, T., Stegeman, J.J., Peterson, R.E., Hiraga, T.: "2,3,7,8-Tetrachlorodibenzo-p-dioxin toxicity in the zebrafish embryo : Local circulation failure in the dorsal midbrain is associated with increased apoptosis"Toxicol. Sci., Accepted with revision.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 董武, 寺岡宏樹, 築山周作, 山崎康司, 今仁須美子, 今川智敬, 近藤俊三, 平賀武夫: "ゼブラフィッシュの脳におけるTCDD誘発性アポトーシスと局所循環の相関"J. Rakuno Gakuen Univ.. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 村本若菜, 白土麗子, 熊谷芳浩, 寺岡宏樹, 平賀武夫: "ゼブラフィッシュ初期胚における有機スズの毒性"J. Rakuno Gakuen Univ.. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dong W., Teraoka H., Kondo S. & Hiraga T.: "2, 3, 7, 8 - tetrachlorodibenzo- p-dioxin induces apoptosis in the dorsal midbrain of zebrafish embryos by activation of arylhydrocarbon receptor"Neurosci. Lett.. 303. 169-173 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Teraoka H., Maruyama Y., Takehana K., Iwanaga T., Hiraga T., Fujita S. & Ohta T.: "Ca^<2+> signaling in porcine duodenal glands by muscarinic receptor activation"Am. J. Physiol.. 280. G729-737 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Maruyama Y., Teraoka H., Iwata H., Kazusaka A. & Fujita S.: "Inhibitory effects of endogenous dopaminergic neurotoxin, norsalsolinol on dopamine secretion in PC12 rat pheochromocytoma cells"Neurochem. Int.. 38. 567-572 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kitazawa T., Nakagoshi K, Teraoka H. & Taneike T.: "5HT7 receptor and beta2-adrenoceptor share in the inhibition of porcine uterine contractility in a muscle layer-dependent manner"Eur. J. Pharmacol.. 433. 187-197 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Teraoka H., Dong W., Ogawa S., Tsukiyama S., Okuhara Y., Niiyama M., Ueno N., Peterson RE. & Hiraga T: "2, 3, 7, 8-Tetrachbrodibenzo-/rdioxin toxicity in zebrafish embryo : Altered regional blood flow and impaired lower jaw development"Toxicol. Sci.. 65. 192-199 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yamazaki K., Teraoka H., Dong W., Stegeman J. J. & Hiraga T.: "cDNA cloning and expressions of cytochrome P450 LA in zebrafish embryos."J. Vet. Med. Sci,. (Accepted with revision.). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dong W., Teraoka H., Yamazaki K., Tsukiyama S., Imani S., Imagawa T., Stegeman J. J., Peterson R E. & Hiraga T.: "2, 3, 7, 8 - Tetrachlorodibenzo-p-dioxin toxicity in the zebrafish embryo : Local circulation failure in the dorsal midbrain is associated with increased apoptosis"Toxicol. Sci.. (Accepted with revision.). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dong W., Teraoka H., Tsukiyama S., Yamazaki K., Imani S., Imawawa T., Kondo S. & Hiraga T.: "2, 3, 7, 8, - tetrachlorodibenzo-P-dioxin induces apoptosis in central nervous system: Correlation between local circulation failure and apoptosis in the dorsal midbrain of zebrafish embryos"J. Rakuno Gakuen Univ.. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Muramoto W., Shirato R., Kumagai Y., Teraoka H. & Hiraga T.: "Toxic effects of tributyltin on early zebrafish embryos"J. Rakuno Gakuen Univ.. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dong, W., Teraoka, H., Kondo, S., Hiraga, T.: "2,3,7,8-tetrachlorodibenzo-p-dioxin induced apoptosis in the dorsal midbrain of zebrafish embryos."Neuroscience Letters. 303巻. 169-172 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Teraoka, H., Dong, W., Ogawa, S., Tsukiyama, S., Okuhara, Y., Niiyama, M., Ueno, N., Peterson, R.E., Hiraga, T.: "2,3,7,8-tetrachlorodibenzo-p-dioxin toxicity in the zebrafish embryo : Altered regional blood flow and impaired lower jaw development"Toxicological Science. 65巻. 192-199 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 董武, 寺岡宏樹, 築山周作, 山崎康司, 今仁須美子, 今川智敬, 近藤俊三, 平賀武夫: "ゼブラフィッシュ胚の脳におけるTCDD誘発性アポトーシスと局所循環障害の相関"酪農学園大学紀要. 26巻2号(未定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 村本若菜, 白土麗子, 熊谷芳浩, 寺岡宏樹, 平賀武夫: "ゼブラフィッシュ初期胚における有機スズの毒性"酪農学園大学紀要. 26巻2号(未定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yamazaki, K., Teraoka, H., Dong, W., Stegeman, J.J., Hiraga, T.: "cDNA cloning and expression of cytochrome P450 1A in zebrafish embryos"Journal of Veterinary Medical Science. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Dong,W.,Teraoka,H.,Kondo,S,and Hiraga,T.: "2,3,7,8-tetrachlorodibenzo-p-dioxin induces apoptosis in the dorsal midbrain of zebrafish embryos."Neuroscience Letters. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Teraoka,H.,Ogawa,S.,Dong,W.,Hiraga,T,and Ueno,N.: "The mechanism of retardation of jaw growth by TCDD in early zebrafish embryos."Toxicologist. 54. 137 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Teraoka,H.,Maruyama,Y.,Takehana,K.Iwanaga,T.,Hiraga,T.,Fujita,S.and Ohta,T.: "Ca^<2+> signaling in porcine duodenal glands by muscarinic receptor activation."American Journal of Physiology. (in press). (2001)

    • Related Report
      2000 Annual Research Report

URL: 

Published: 2000-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi