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THE EFFECTS OF EMOXINS FOR NEURONAL DEVELOPMENT

Research Project

Project/Area Number 12836003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research InstitutionNagoya University

Principal Investigator

KANON Yasuhiko  Research Institute of Environmental Medicine, Nagoya Universaity, Assistant Professor, 環境医学研究所, 助手 (50252292)

Co-Investigator(Kenkyū-buntansha) SEO Hisao  Research Institute of Environmental Medicine, Nagoya Universaity, Professor, 環境医学研究所, 教授 (40135380)
MURATA Yoshihara  Research Institute of Environmental Medicine, Nagoya Universaity, Professor, 環境医学研究所, 教授 (80174308)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2000: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsZAKI-4 / calcineurin / mouse / neuronal development / thyroid hormone
Research Abstract

We identified ZAKI-4 as a thyroid hormone responsive gene in cultured human skin fibroblasts. We examined the temporal and spatial expression patterns of ZAKI-4 messenger RNA (mRNA) in control and hypothyroid rat brains. Northern blot analysis revealed that ZAKI-4 mRNA was detected in both cerebral cortex and cerebellum as early as embryonic day (E) 1 8. In the cerebral cortex, the expression level gradually increased with age, reaching a plateau at postnatal day (P) 7 and remained constant thereafter until P30. A similar pattern of increase with age was also observed in hypothyroid rats ; however, the magnitude of the increase was significantly reduced. In cerebellum the expression level did not change with age or by thyroid status. In situ hybridization revealed that ZAKI-4 mRNA is widely expressed in neurons throughout the brain. It is noteworthy that the expression in the neurons of layer VI of the cerebral cortex was more evident in control rats than that in hypothyroid rats from … More P17 to P30. Though not influenced by hypothyroidism, there were several regions of the brain in which ZAKI-4 mRNA was strongly expressed. These regions were the mitral cell layer of the olfactory bulb, the substantia nigra, and the hippocampus, where calcineurin is also abundantly expressed. Therefore, it may be hypothesized that ZAKI-4 plays an important role in the development and function of the brain by modulating calcineurin function; and decrease in ZAKI-4 mRNA expression in the specific brain areas may explain, in some parts, the mechanism of abnormal brain development by hypothyroidism.
There are two isoforms of mRNAs, α and β, in ZAKI-4. These isoforms differ at the 5' region but are the same in the rest of the sequences. Expressions of ZAKI-4 a and /3 mRNAs show a distinctive tissue distribution in the mouse, suggesting their specific functions in each tissue. ZAKI-4 α and β mRNAs encode 192 and 243 amino acids, respectively. The sequences differ at their N-terminal regions but are completely identical at the C-terminal region, which includes an calcineurin-inhibitory motif. In mouse, expressions of ZAKI-4 α and β show distinct tissue distribution. While ZAKI-4 α mRNA is expressed specifically in brain, ZAKI-4 ft mRNA is expressed not only in brain but also in other tissues such as heart and skeletal muscle. Al, though both isoforms seem to function as a calcineurin inhibitor, the difference in their N terminal regions and their distinct distributions suggest that ZAKI-4 α and βp exert biological functions in a tissue specific manner in vivo. Less

Report

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

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Ayesha Siddiq, Yasuhiko Kanou, et al.: "Expression of ZAKI-4 messenger RNA in the brain during rat development and the effect of hypothyroidism"Endocrinology. 142-5. 1752-1759 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Hayasaka, Yasuhiko Kanou et al.: "Distribution of ZAKI-4 in neurons on mouse cerebral cortex"Environmental Medicine. 45-1. 29-31 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yasuhiko Kanou, et al.: "Cloning of mouse ZAKI-4 b genomic DNA by primer walking on YAC cone"Environmental Medicine. 44-2. 75-79 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Futaki, Yasuhiko Kanou, et al.: "Identification of a novel myosin-Va mutation in an ataxic mutant rat, dilute-opisthotonus"Mammalian Genome. 11. 649-655 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ya-Ping Tang, Yasuhiko Kanou et al.: "Spatiotemporal expression of BDNF in the hippocampus induced by the continuous intracerebroventricular infusion of beta-amyloid in rats"Brain Research Molecular Brain Research. 80. 188-197 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Hoshino, Yasuhiko Kanou et al.: "Preparation of antibody that commomly redognizes ZAKI-4 a and b of human, rat and mouse"Evironmental Medicine. 44-2. 113-116 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Siddiq, A., Miyazaki, T., Takagishi, Y., Kanou, Y.,Hayasaka, S, Inouye, M., Seo, H., and Murata, Y.: "Expression of ZAKI-4 messenger ribonucleic acid in the brain during rat development and the effect of hyp othyroidism"Endocrinology. 142(5). 1752-1759 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayasaka Shizu, Hoshino Shin, Siddiq Ayesha, Kanou Yasuhiko, Takagishi Yoshiko, Kambe Fukushi, Seo Hisao, Murata Yoshiharu: "Distribution of ZAKI-4 in neurons on mouse cerebral cortex,"Environmental Medicine. 45(1). 29-31 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kanou Yasuhiko, Seo Hisao, Murata Yoshiharu: "Cloning of mouse ZAKI-4 b genomic DNA by primer walking on YAC clone"Environmental Medicine. 45(2). 75-79 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Futaki, S., Takagishi, Y., Hayashi, Y., Ohmori, S., Kanou, Y., Inouye, M., Oda, S., Seo, H., Iwaikawa, Y., and Murata, Y: "Identification of a novel myosin-Va mutation in an ataxic mutant rat, dilute-opisthotonus"Mammalian Genome. 11. 649-655 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tang, Y., Yamada, K., Kanou, Y., Miyazaki, T., Xiong, X., Kambe, F., Murata, Y., Seo, H., and Nabeshima, T: "Spatiotemporal expression of BDNF in the hippocampus induced by the continuous intracerebroventricular infusion of beta-amyloid in rats"Brain Research Molecular Brain Research. 80. 188-197 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shin Hoshino, Fukushi Kambe, Yasuhiko Kanou, Hisao Seo, Yoshiharu Murata: "Preparation of antibody that commonly recognizes ZAKI-4 a and b of human, rat and mouse,"Environmental Medicine. 44(2). 113-116 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hoshino Shin, Siddiq Ayesha, Takagishi Yoshiko, Kanou Yasuhiko, Hayasaka Shizu, Kambe Fukushi, Seo Hisao, Murata Yoshiharu: "Expression of ZAKI-4 mRNA in the brain during rat development and the effect of hypothyroidism"8th International Symposium on Molecular Thyroidology, Tokyo. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ya-Ping Tang, Yasuhiko Kanou, et al.: "Spatiotemporal expression of BDNF in the hippocampus induced by the continuous intracerebroventricular infusion of beta-amyloid in rats"Brain Research Molecular Brain Research. 80・2. 188-197 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sugiko Futaki, Yasuhiko Kanou, et al.: "Identification of a novel myosin-Va mutation in an ataxic mutant rat, dilute-opisthotonus"Mammalian Genome. 11・8. 649-655 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shin Hoshino, Yasuhiko Kanou, et al.: "Preparation of antibody that commonly recognizes ZAKI-4 α and β of human, rat and mouse"Environmental Medicine. 44・2. 113-116 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ayesha Siddiq, Yasuhiko Kanou, et al.: "Expression of ZAKI-4 messenger RNA in the brain during rat development and the effect of hypothyroidism"Endocrinology. 142・5. 1752-1759 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shizu Hayasaka, Yasuhiko Kanou et al.: "Distribution of ZAKI-4 in neurons on mouse cerebral cortex"Environmental Medicine. 45・1. 29-31 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yasuhiko Kanou et al.: "Cloning of mouse ZAKI-4 beta genomic DNA by primer walking on YAC clone"Environmental Medicine. 45・2. 75-79 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ya-Ping Tang and Yasuhiko Kanou, et al.: "Spatiotemporal expression of BDNF in the hippocampus induced by the continuous intracerebroventricular infusion of beta-amyloid in rats"Brain Research Molecular Brain Research. 80・2. 188-197 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sugiko Futaki and Yasuhiko Kanou, et al.: "Identification of a novel myosin-Va mutation in an ataxic mutant rat, dilute-opisthotonus"Mammalian Genome. 11・8. 649-655 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 加納安彦 他: "甲状線ホルモン応答性遺伝子ZAKI-4のマウスゲノム構造と組織特異的発現"生化学. 72・8. 1048 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shin Hoshino and Yasuhiko Kanou, et al: "Preparation of antibody that commonly recognizes ZAKI-4 α and β of human, rat and mouse."Environmental Medicine. 44・2. 113-116 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ayesha Siddiq and Yasuhiko Kanou, et al: "Expression of ZAKI-4 messenger RNA in the brain during rat development and the effect of hypothyroidism"Endoclinology. 142・5(In press). (2001)

    • Related Report
      2000 Annual Research Report

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

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