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

cDNA microarray analyses on the gene expression in the pituitary glands under the physiological and experimental conditions.

Research Project

Project/Area Number 15590152
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General anatomy (including Histology/Embryology)
Research InstitutionAsahikawa Medical College

Principal Investigator

WATANABE Tsuyoshi  Asahikawa Medical College, Dept.of Anatomy, Professor, 医学部, 教授 (80220903)

Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2005: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsanterior pituitary / secretory granules / DNA microarray / immunocytochemistry / gonadotropins / sex-related difference / gonadotropes / sex steroids
Research Abstract

The pituitary gland is situated in the center of hypothalamic-pituitray-gonadal axis that cooperatively regulates the reproductive functions. Pituitary gonadotropes regulate the gonadal function by secreting two gonadotropins, LH and FSH, and in turn, their functional states are influenced by the hypothalamic and gonadal factors. To describe the molecular basis of these influences on the pituitary gland, we analyzed simultaneously the expression levels of 11,505 genes in the rat pituitary and adrenal glands under the physiological and experimental conditions by using a cDNA microarray.
First, we found significant sex-related differences in the expression levels of 112 genes in the pituitary and 87 genes in the adrenal glands. Interestingly, only 4 genes of the 112 genes identified above in the pituitary exhibited simultaneously a significant sex-related difference in the expression in the adrenal, suggesting that the molecular basis for the sex-related differences varies depending on th … More e tissues/cells. These sex-related differences in the gene expression are significantly reduced after castration (orchiectomy for male, and ovariectomy for female rats), indicating that the gonadal factors play a pivotal role in the establishment of sex-related differeneces in these two organs. However, the gene expression of these two endocrine organs were differently regulated by androgens and estrogens ; the expression levels of about three fourths of the 112 genes identified above in the pituitary were significantly fluctuated by estradiol treatment after castration in correspondence with the sex-related difference observed, while those of four fifths of the 87 genes identified above in the adrenal were significantly fluctuated by testosterone treatment.
These analyses first clarified the molecular basis of sex-related differences in the two representative organs, pituitary and adrenal glands. Based on these findings, the gene products that have not been classified so far could be identified as a molecule with a significant function in the hypothalamic-pituitary-gonadal axis. Less

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (9 results)

All 2005 2004 Other

All Journal Article (8 results) Publications (1 results)

  • [Journal Article] Interaction between secretogranin III and carboxypeptidase E facilitates prohormone sorting within secretory granules.2005

    • Author(s)
      Hosaka M., et al.
    • Journal Title

      J.Cell.Sci. 118

      Pages: 4785-4795

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Addition of phosphotungstic acid to ethanol for dehydration improves both the ultrastructure and antigenicity of pituitary tissue embedded in LR White acrylic resin.2005

    • Author(s)
      Sakai Y., et al.
    • Journal Title

      Arch.Histol.Cytol. 68

      Pages: 337-347

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Interaction between secretogranin III and carboxypeptidase E facilitates prohormone sorting within secretory granules.2005

    • Author(s)
      Hosaka M, Watanabe T, Sakai Y, Kato T, Takeuchi T
    • Journal Title

      J Cell Sci 118

      Pages: 4785-4795

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Addition of phosphotungstic acid to ethanol for dehydration improves both the infrastructure and antigenicity of pituitary tissue embedded in LR White acrylic resin.2005

    • Author(s)
      Sakai Y, Hosaka M, Hira Y, Watanabe T
    • Journal Title

      Arch Histol Cytol 68

      Pages: 337-347

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Secretogranin III binds to cholesterol in the secretory granule membrane as an adapter for chromogranin A.2004

    • Author(s)
      Hosaka M., et al.
    • Journal Title

      J.Biol.Chem. 279

      Pages: 3627-3634

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Immunocytochemical localization of secretogranin III in the endocrine pancreas of male rats.2004

    • Author(s)
      Sakai Y., et al.
    • Journal Title

      Arch.Histol.Cytol. 67

      Pages: 57-64

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Secretogranin III binds to cholesterol in the secretory granule membrane as an adapter for chromogranin A.2004

    • Author(s)
      Hosaka M, Suda M, Sakai Y, Izumi T, Watanabe T, Takeuchi T
    • Journal Title

      J Biol Chem 279

      Pages: 3627-3634

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Immunocytochemical localization of secretogranin III in the endocrine pancreas of male rats.2004

    • Author(s)
      Sakai Y, Hosaka M, Yoshinaga A, Hira Y, Harumi T, Watanabe T
    • Journal Title

      Arch Histol Cytol 67

      Pages: 57-64

    • NAID

      10012846445

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Hosaka M. et al.: "Secretogranin III binds to cholesterol in the secretory granule membrane as an adapter for chromogranin A"J.Biol.Chem. 279. 3627-3634 (2004)

    • Related Report
      2003 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi