Systemic analysis of tissue and subcellular localization of nuclear receptors

2008 Fiscal Year Final Research Report

• Project/Area Number: 19790254
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Human pathology
• Research Institution: Niigata University
• Principal Investigator: OHASHI Riuko Niigata University, 医歯学系, 助教 (20447600)
• Project Period (FY): 2007 – 2008
• Keywords: 核内受容体 / 組織細胞内局在 / HNF4α / LXRα / 病理学

Research Abstract

ヒト、ラット、マウス組織おける核内受容体の組織局在の同定を完了した。HepG2細胞における染色性を各核内受容体で系統的に検討した結果、殆どの核内受容体は核質に発現するが、ROR は核小体のgranular component、LXRαはdense fibrillar componentにと異なる局在を示すことが判明した。さらに、LXRαについて詳細な局在および機能をHepG2 細胞を用いて進めた。その結果、LXRαがリボゾームRNA 転写において重要な役割を担う分子であることが判明した。より詳細な解析を加えつつ、これらの成果について一部は論文化を完了し、他のデータについても論文投稿準備中である。

Research Products

• [Journal Article] Protein expression of nuclear receptors in human and murine tissues (2008)
  • Author(s): Takegoshi S, Jiang S, Ohashi R, Savchenko AS, Iwanari H, Tanaka T, Hasegawa G, Hamakubo T, Kodama T, Naito M
  • Journal Title: Pathol Int 59(2) Pages: 61-72
  • Peer Reviewed
• [Journal Article] Expression of liver X receptor alpha and lipid metabolism in granulocyte-macrophage colony-stimulating factor-induced human monocyte-derived macrophage (2008)
  • Author(s): Kazawa T, Kawasaki T, Sakamoto A, Imamura M, Ohashi R, Jiang S, Tanaka T, Iwanari H, Hamakubo T, Sakai J, Kodama T, Naito M
  • Journal Title: Pathol Int 59(3) Pages: 152-60
  • Peer Reviewed
• [Journal Article] Cooperative interaction between Hepatocyte Nuclear Factor 4α and GATA transcription factors regulates ATP-binding cassette sterol transporters ABCG5 and ABCG8 (2007)
  • Author(s): Sumi K, Tanaka T, Uchida A, Magoori K, Urashima Y, Ohashi R, Ohguchi H, Okamura M, Kudo H, Daigo K, Maejima T, Kojima N, Sakakibara I, Jiang S, Hasegawa G, Kim I, Osborne TF, Naito M, Gonzalez FJ, Hamakubo T, Kodama T, Sakai J
  • Journal Title: Molecular and Cellular Biology 27(12) Pages: 4248-4260
  • Peer Reviewed
• [Journal Article] Down-regulated P1 promoter-driven HNF4α expression in human colorectal carcinoma is a new prognostic factor against liver metastasis (2007)
  • Author(s): Oshima T, Kawasaki T, Ohashi R, Hasegawa G, Jiang S, Umezu H, Aoyagi Y, Iwanari H, Tanaka T, Hamakubo T, Kodama T, Naito M
  • Journal Title: Pathol Int 57 Pages: 82-90
  • Peer Reviewed
• [Journal Article] Expression of liver X receptor α in fetal macrophages in rats (2007)
  • Author(s): Sakamoto A, Kawasaki T, Kazawa T, Ohashi R, Jiang S, Tanaka T, Iwanari H, Hamakubo T, Sakai J, Kodama T, Naito M
  • Journal Title: J Histochem Cytochem 55 Pages: 641-649
  • Peer Reviewed
• [Presentation] 肝構成細胞における核内受容体の発現 (2008)
  • Author(s): 姜淑英、竹越聡、大橋瑠子、岩成宏子、内藤眞
  • Organizer: 第97回日本病理学会総会
  • Place of Presentation: 金沢
  • Year and Date: 20080515-17
• [Presentation] 肺線癌におけるTTF-1(Thyroid Transcription Factor-1)の発現例、非発現例の検討 (2008)
  • Author(s): 國井亮祐、長谷川剛、山本尚、梅津哉、姜淑英、大橋瑠子、内藤眞、渡辺健寛
  • Organizer: 第97回日本病理学会総会
  • Place of Presentation: 金沢
  • Year and Date: 20080515-17