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精子細胞分化・初期発生とエピジェネシス

Research Project

Project/Area Number 16045209
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionOsaka University

Principal Investigator

田中 宏光  大阪大学, 微生物病研究所, 助手 (10263310)

Co-Investigator(Kenkyū-buntansha) 宮川 康  大阪大学, 医学系研究科, 助手 (70362704)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 2005: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2004: ¥3,000,000 (Direct Cost: ¥3,000,000)
Keywords精巣 / 生殖細胞 / 精子 / 遺伝子 / エピジェネティクス / 発生 / 分化 / 特異的 / 男性不妊症 / KOマウス / クロマチン / Genome / エピジェネティック / 核
Research Abstract

本研究の目的は、(A)精子細胞クロマチン構造に関与する遺伝子の網羅的クローニングと、得られた新規核タンパク質の機能解析、また既知のクロマチンタンパク質と各産物の相互作用、それらがもたらすクロマチン構造変化と遺伝子発現、(B)そのクロマチン状態に裏打ちされた精子細胞分化と、受精後の発生を保障する精子クロマチン構造の役割を明らかにすることである。
昨年までに我々は新規精子細胞核特異的遺伝子Haspin,Rosbin,HANP1 HILS1をクローニングした。それら遺伝子の生化学的解析からHaspinは核カイネース、Rosbinは特異的DNA配列に結合する転写調節因子、HANP1,HILS1は精子細胞特異的ヒストンH1様蛋白質であることを明らかにした。これらの遺伝子破壊マウスを作成し、解析を行った結果、HANP1遺伝子欠失マウスは、精子形成にのみ異常が見られ雄性不妊になることが明らかとなった。精子核はDNAとそれを折りたたむプロタミン蛋白質によって形成される。HANP1遺伝子は体細胞型クロマチンから精子クロマチン形成への置き換わりに必須であることが明らかとなった。HANP1欠失による雄性不妊はICSIによってレスキューできることから、遺伝情報は影響を及ぼさないことまた、HANP1遺伝子の欠失は他の遺伝子発現には影響を及ぼさなかった。

Report

(2 results)
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (18 results)

All 2006 2005 2004

All Journal Article (16 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Expression of Mina53, a product of a Myc target gene in mouse testis.2006

    • Author(s)
      Tsuneoka M 他9名
    • Journal Title

      Int.J.Androl. (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Expression profiles and single-nucleotide polymorphism analysis of human HANP1/H1T2 encoding a histone H1-like protein.2006

    • Author(s)
      Tanaka H 他8名
    • Journal Title

      Int.J.Androl. (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Infertility caused by polymorphisms or mutations in spermatogenesis-specific genes.2006

    • Author(s)
      Nishimune Y, Tanaka H.
    • Journal Title

      J.Androl. (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Cortical organization by the septin cytoskeleton is essential for structural and mechanical integrity of mammalian spermatozoa.2005

    • Author(s)
      Ihara M 他14名
    • Journal Title

      Dev.Cell 8

      Pages: 343-352

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Tisp40, a spermatid specific bZip transcription factor, functions by binding to the unfolded protein response element via the Rip pathway.2005

    • Author(s)
      Nagamori I 他6名
    • Journal Title

      Genes Cells 10

      Pages: 575-594

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Identification of human HAPRIN potentially involved in the acrosome reaction.2005

    • Author(s)
      Kitamura K 他3名
    • Journal Title

      J.Androl. 26

      Pages: 511-518

    • Related Report
      2005 Annual Research Report
  • [Journal Article] HANP1/H1T2, a novel histon H1-like protein involved in nuclear formation and sperm fertility.2005

    • Author(s)
      Tanaka H 他11名
    • Journal Title

      Mol.Cell.Biol. 25

      Pages: 7107-7119

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Single-nucleotide polymorphisms and mutation analyses of the TNP1 and TNP2 genes of fertile and infertile human male populations.2005

    • Author(s)
      Miyagawa Y 他7名
    • Journal Title

      J.Androl. 26

      Pages: 779-786

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The RING-finger protein haprin : domains and function in the acrosome reaction.2005

    • Author(s)
      Kitamura K 他2名
    • Journal Title

      Curr.Protein Pept.Sci. 6

      Pages: 567-574

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Sperm flagella protein components : Human meichroacidin constructed by the MORN motif.2005

    • Author(s)
      Tanaka H 他9名
    • Journal Title

      Reprod.Med.Biol. 4

      Pages: 213-219

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Identification of Human HAPRIN Potentially Involved in the Acrosome Reaction2005

    • Author(s)
      Kitamura K., et al.
    • Journal Title

      Journal of Andrology 6(In press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cortical organization by the septin cytoskeleton is essential for structural and mechanical integrity of the mammalian sperm2005

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

      Developmental Cell 8

      Pages: 343-352

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Gene expression in spermiogenesis2005

    • Author(s)
      Tanaka H., Baba T.
    • Journal Title

      Cellular and Molecular Life Sciences 62

      Pages: 344-354

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Mice deficient in the axonemal protein Tektin-t exhibit male infertility and immotile-cilium syndrome due to impaired inner arm dynein2004

    • Author(s)
      Tanaka H., et al.
    • Journal Title

      Molecular Cellular Biology 24

      Pages: 7958-7964

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Ketone bodies could support the motility but not the acrosome reaction of mouse sperm.2004

    • Author(s)
      Tanaka H., et al.
    • Journal Title

      International Journal of Andrology 27

      Pages: 172-177

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Characterization of a Novel Postacrosomal Perinuclear Theca-Specific Protein, CYPT1.2004

    • Author(s)
      Kitamura K., et al.
    • Journal Title

      Biology of Reproduction 71

      Pages: 1927-1935

    • Related Report
      2004 Annual Research Report
  • [Book] 精子学 第10章 精子形成関連遺伝子とその特異的発現2006

    • Author(s)
      田中宏光, 西宗義武
    • Publisher
      東京大学出版会(In Press)
    • Related Report
      2005 Annual Research Report
  • [Patent(Industrial Property Rights)] 特許2005

    • Inventor(s)
      田中宏光, 西宗義武
    • Industrial Property Rights Holder
      大阪大学知的財産本部
    • Industrial Property Number
      2005-279598
    • Filing Date
      2005-09-27
    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2018-03-28  

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