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血管機能における神経・体液性因子の相関・病態

Research Project

Project/Area Number 04263104
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionKyoto University

Principal Investigator

北 徹  京都大学, 医学部, 教授 (60161460)

Co-Investigator(Kenkyū-buntansha) 山本 章  国立循環器病センター, 研究所, 副所長 (00028408)
猿田 享男  慶応義塾大学, 医学部, 教授 (70051571)
泰江 弘文  熊本大学, 医学部, 教授 (40174502)
高井 義美  神戸大学, 医学部, 教授 (60093514)
河合 忠一  京都大学, 医学部, 名誉教授 (70025659)
Project Period (FY) 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥89,200,000 (Direct Cost: ¥89,200,000)
Fiscal Year 1993: ¥44,600,000 (Direct Cost: ¥44,600,000)
Fiscal Year 1992: ¥44,600,000 (Direct Cost: ¥44,600,000)
KeywordsCNP / エンドセリン / NO / アクチビンA / PD-ECGF / Rho / 胎児型ミオシン重鎖 / リゾフォスファチジルコリン / 血管内皮 / 血管平滑筋 / ナトリウム利尿ペプチドファミリー / エンドセリンファミリー / 血管内皮由来弛緩因子 / 低分子量G蛋白質 / リポ蛋白 / リポ蛋白リパーゼ
Research Abstract

血管機能および神経並びに体液性因子の影響を血管内皮平滑筋に焦点をあてつつ、その分子機構を研究し病態生理的意義を明らかにすることを目的とする本班の第三年度の活動は順調に進展している。
(1)中尾らはCNPが内皮細胞において生成され、それがTGF-β、bFGFなど増殖因子およびIL-1α、βなどのサイトカインにより刺激されれることを明らかにした。広瀬らはANP受容体のホモダイマー構造を証明し、更にその遺伝子の転写制御機構の解析を進めている。
(2)エンドセリンに関しては越智らにより生体内分布が解析され、神経活性物質的及び成長因子的役割が明らかにされた。また熊田らは血管運動および呼吸に関わる神経伝達にエンドセリン-1の関与を見い出した。また広瀬、中尾らによりエンドセリン受容体遺伝子の転写調節機構の解析が進められている。
(3)猿田らはEDRFの本態であるNOが中枢神経系を介して交感神経活動を抑制している可能性を示唆し、平田らはDOCA-食塩高血圧ラットの病態がNO遊離減少に基づくことを明らかにした。竹下らは冠動脈のトーヌスとNOの関わりについて検討し、河合らはNO合成酵素の遺伝子の構造に基づきその発現調節の解析を進めている。加藤らはアストロサイトの内皮細胞への作用を解析している。
(4)小島らは平滑筋増殖制御をアクチビンAとの関わりにおいて解析し、豊島らはPD-ECGFの効果を酵素学的側面から明らかにしつつある。高井は血管平滑筋の移動にRhoの重要性を見い出した。また永井らは内膜における平滑筋細胞に胎児型ミオシン重鎖遺伝子の発現を明らかにするとともに、そのプロモーター領域の解析を進めつつある。
(5)リポ蛋白と血管構成細胞との関連においては、北らはLDLの酸化過程で生ずるリゾフォスファチジルコリン(LPC)が内皮細胞においてVCAM-1の発現をPKCを関与しない機構で誘導することを明らかにした。山本らはリポ蛋白リパーゼ(LPL)のマクロファージにおける生成とその病的意義を解析しつつある。また泰江らは冠動脈の攣縮とLPCの関わりにつき、一方友池らは遺伝的粥状動脈硬化モデルウサギを用いた内皮依存性弛緩反応の解析を行っている。

Report

(2 results)
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] Kita,T.,et al.: "Cigarette smoke,LDL and cholesteryl ester accumulation in macrophages." Ann.N.Y.Acad.Sci.686. 91-98 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Ueda,Y.,et al.: "Different expression of modified low density lipoprotein receptors in rabbit peritoneal macropahges and Kupffer cells." Atherosclerosis. 101. 25-35 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Tanaka,M.,et al.: "Regulation of apolipoprotein B production and secretion in response to the change of intracellular cholesteryl ester contents in rabbit hepatocytes." J.Biol.Chem.268. 12713-12718 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Itakura,M.,et al.: "Mutational analysis of disulfide bridges in the type C atrial natriuretic peptide receptor." J.Biol.Chem.in press.

    • Related Report
      1993 Annual Research Report
  • [Publications] Iwashina,M.,et al.: "His^<145>-Trp146 residues and the disulfide-linked loops in atrial natriuretic peptide receptor are critial for the ligand-binding activity." J.Biochem.in press.

    • Related Report
      1993 Annual Research Report
  • [Publications] Saruta,T.,et al.: "Efficacy of manidipine in the treatment of hypertension with renal impairment:Amulticenter trial." American Heart Journal. 125. 630-634 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kumagai,H.,et al.: "Central and peripheral vasopressin interact differently with sympathetic nervous system and renin-angiotensin system in renal hypertensive rabbits." Circulation Research. 72. 1225-1265 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kugiyama,K.,et al.: "Transferable lipids in oxidized low-density lipoprotein stimulate plasminogen activator inhibitor-1 and inhibit tissue-type plasminogen activator release from endothelial cells." Circulation Research. 73. 335-343 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Ohgushi,M.,et al.: "Protein kinase C inhibitors prevent impairment of endothelium-dependent relaxation by oxidatively modified LDL." Arteriosclerosis and Thrombosis. 13. 1525-1532 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Uchizumi,H.,et al.: "A stable relaxing factor released from cytotoxic activated macrophages." Am.J.Physiol.264. H1472-H1477 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Hattori,R.,et al.: "Stabilization of inducible nitric oxide synthase by monoclonal antibodies." Hybridoma. 12. 763-770 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Hirata,Y.,et al.: "Role of endogenous ANP in DOCA-salt hypertensive rats:effects of a novel non-peptide antagonist for ANP receptor." Circulation. 87. 554-561 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Hayakawa,H.,et al.: "Mechanisms for altered endothelium-dependent vasorelaxation in isolated kidneys from experimental hypertensive rats." Am.J.Physiol.264. H1535-H1541 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kigawa,K.,et al.: "Low-density lipoprotein receptor mutation that deletes exon 2 and 3 by Alu-Alu recombination." J.Biochem.113. 372-376 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takaichi,T.,et.al.: "Ultrastructural studies on the phenotypic modulation of human intimal smooth muscle cells." Atherosclerosis. 100. 197-211 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Sasaki,T.,et al.: "Consequences of weak interaction of rho p21 and rac p21." J.Biol.Chem.268. 23959-23963 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kishi,K.,et al.: "Regulation of cytoplasmic division of Xenopus embyo by rho p21 and its inhibitory GDP/GTP exchange protein(rho GDI)." J.Cell.Biol.120. 1187-1195 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Suga,S.,et al.: "Cytokine-induced C-type natriuretic peptide(CNP)secretion from vascular endothelial cells--Evidence for CNP as a novel autocrine/paracrine regulator from endothelial cells--." Endocrinology. (in press).

    • Related Report
      1993 Annual Research Report
  • [Publications] Arai,H.,et al.: "The human endothelin-B receptor gene--Structural organization and chromosomal addignment--." J.Biol.Chem.268. 3463-3470 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Suga: "Endothelial production of C-type natriuretic peptide and its marked augmentation by transforming growth factor-β-Possible existence of ¨vascular natriuretic peptide system'-." J.Clin.Invest.90. 1146-1149 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Hosoda: "Organization,structure,chromosomal assignment,and expression of the gene encoding the human endothelin-A receptor." J.Biol.Chem.267. 18797-18804 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y,Ueda: "Different expression of modified low density lipoprotein receptors in rabbit peritoneal macrophages and kupffer cells." Atherosclerosis.

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Tanaka: "Regulation of apolipoprotein B production and secretion in response to the change of intracellular cholesteryl ester contents in rabbit hepatocytes." J.Biol.Chem.

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Uchizumi: "A stable L-arginine dependent relaxing factor released from cytotoxic activated macrophage." Am.J.Physiol.

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Miura: "Regulation of morphology by rho p21 and its inhibitory GDP/GTP exchange protein (rho GDI) in Swiss 3T3 cells." J.Biol.Chem.

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Kishi: "Regulation of cytoplasmic division of Xenopus embryo by rho p21 and its inhibitory GDP/GTP exchange protein (rho GDI)" J.Cell Biol.

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Ikenaga: "Endothelium derived relaxing factor modulates Pressurenatriuresis in rats." Kidney International.

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Kumagai: "EDRF/NO modulates renal vascular tone through the sympathetic nervous system in conscious rabbits." Hypertension.

    • Related Report
      1992 Annual Research Report
  • [Publications] A.Takagi: "Molecular studies on primary lipoprotein lipase (LPL) deficiency:one base (G916) deletion in exon 5 of LPL gene causes no detectable LPL protein due to the absence of LPL mRNA transcript." J.Clin.Invest.89. 581-591 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Kugiyama: "Lysophosphatidylcoline inhibits surface receptormediated intracellular signals in endothelial cells by a pathway involving protein kinase C activation." Circulation Research. 71. 1422-1428 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Jougasaki: "Suppression of endothelin-1 secretion by lysophosphatidylcholine in oxidized low density lipoproten in cultured vascular endothelial cells." Circulation Research. 71. 614-619 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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