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エネルギー損失分光電子顕微鏡を用いた組織細胞化学による石灰化研究の新しい展開

Research Project

Project/Area Number 10877289
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionNiigata University

Principal Investigator

小澤 英浩  新潟大学, 歯学部, 教授 (60018413)

Co-Investigator(Kenkyū-buntansha) 網塚 憲生  新潟大学, 歯学部, 助手 (30242431)
江尻 貞一  新潟大学, 歯学部, 助教授 (40160361)
中村 浩彰  新潟大学, 歯学部, 助手 (50227930)
入江 一元  新潟大学, 歯学部, 助手 (70223352)
Project Period (FY) 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1999: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1998: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords骨 / 石灰化 / 微細形態 / 組織細胞化学 / 元素分析 / エネルギーフィルター透過型電子顕微鏡 / 電子エネルギー損失分光電子顕微鏡 / エネルギー損失分光電子顕微鏡 / 生物学的石灰化 / 骨基質 / プロテオグリカン / アルカリフォスファターゼ / デコリン / コラーゲン細線維 / 基質小胞
Research Abstract

本年度は、電子エネルギー損失分光電子顕微鏡(EELS)の運用に改良を加え、今までなし得なかったÅレベルの元素の局在解析法と高分解免疫電顕法を開発し、生物学的石灰化におけるコラーゲン性石灰化の機序を解明することを目的として、EELSとイメージングプレートとを組み合わせた分析電顕システムを用いてコラーゲン性石灰化機構を解析した。
実験試料には、胎生期ラット頭頂骨を液体ヘリウムで急速凍結し、さらに凍結置換を行ったものを用いた。この試料を超薄切して、EELSで観察し、微細形態の検索や、元素分析、オステオネクチンの免疫電顕等を行った。
胎生期頭蓋骨では、基質小胞内での結晶析出から、石灰化の形成、コラーゲン性石灰化による広範な石灰化基質の確立にいたる一連の過程が観察できる。石灰化球では石灰化結晶の集積が観察されるが、結晶表面には、酢酸ウラン・クエン酸鉛の電子染色で染色される幅約1nmの結晶鞘が存在しており、その部位には、Nの明らかな集積は見られなかったことから、結晶鞘は比蛋白性成分から構成されていることが示唆された。このように、免疫電顕では物質の局在同定は困難である微細な構造においても、この電顕を用いた分析では、組成に関する情報がえられることが明らかとなった。
さらに、この電顕を用いた高分解能免疫電顕では、石灰化球とコラーゲン細線維の境界部にオステオネクチンが集積することが明らかとなり、オステオネクチンがコラーゲン性石灰化に重要な役割を果たすことが示唆された。

Report

(2 results)
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (71 results)

All Other

All Publications (71 results)

  • [Publications] Karaplis,A.: "Blomstrand chondrodisplasia caused by a missense mutation in the human parathyroid hormone receptor-1"Endocrinology. 139・12. 5255-5258 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Amizuka,N: "Vitamin D3 differentially regulates parathyroid hormone/parathyroid hormone-related peptide receptor expression in bone and cartilage"J Clin Invest.. 103・3. 373-381 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hoshi,K: "The Primary calcification in bones follows removal of decorin and fusion of collagen fibrils"J Bone Miner.Res.. 14・2. 273-280 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Horiuchi,K: "Identification and characterization of a novel protein, periostin (OSF-2) with restricted expression to periosteum and periodontal ligament and increased expression by transforming factor"J Bone Miner Res.. 14・7. 1239-1249 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tanaka,M.: "Changes of cancellous bone mass in rat mandibular condyle following ovariectomy"Bone. 25・3. 339-347 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ito,M.: "Ultrastructural and cytochemical studies on cell death of osteoclasts induced by bisphosphonate treatment"Bone. 25・4. 447-452 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nakajima,M.: "Effect of intermittent administration of human parathyroid hormone (1-34) on the mMandibular condyle of ovariectomized rats"J Bone Miner.Metab.. 18・1. 9-17 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Wakita,K.: "Maturation ameloblasts of the procine germ do not express amelogenin"Histochem Cell Biol.. 111. 297-303 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hoshi,K.: "Morphological characterization of skeletal cells in cbfa1-deficient mice"Bone. 25・6. 639-651 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Izumi,N.: "Ultrastructural alteration of osteoclasts treated with brefeldin A and wortmannin"Acta Histo.Cyto.. 32・5. 393-405 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 平賀 徹: "癌の骨転移の微細形態"腎と骨代謝. 12・1. 15-21 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小澤英浩: "骨の微細構造"ザ・クインテッセンス. 18・1. 176-185 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小澤英浩: "骨組織におけるアポトーシス"The Bone. 13・2. 47-56 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 平賀 徹: "癌の骨転移の微細形態とビスホスホネート"CLINICAL CALCIUM. 9・11. 22-27 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 網塚憲生: "軟骨におけるPTHrPの作用"腎と骨代謝 骨の分子発生学. 12・3. 253-266 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 田中みか子: "加齢および卵巣摘出によるラット下顎頭の海綿骨変化"新潟歯学会雑誌. 28・2. 85-86 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 網塚憲生: "副甲状腺ホルモン関連ペプチド遺伝子組み替えマウスの軟骨・骨の異常"医学のあゆみ. 192・6. 740-746 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hoshi,K.: "Histopathological characterization of melorheostosis"Orthopedics. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] Tanizawa,T.: "Early reduction in bone formation and elevated bone resorption in ovariectomized rats with special reference to acute inflammation"Bone. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] Takeyama,M.: "Immunohistochemical demonstration of cathepsin B and L in periodontal ligame nt(PDL)of rat molar."J Dent.Res.. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] Amizuka,N.: "Recent studies on the biological action of parathyroid hormone (PTH)-related peptide (PTHrP) and PTH/PTHrP receptor in cartilage and bone"Histol.Histopath. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] 小澤英浩: "最新骨粗鬆症"ライフサイエンス出版. 640 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 網塚憲生: "カルシウム その基礎・臨床・栄養"ライフサイエンス出版. 277 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 江尻貞一: "バイオイメージングの最先端"先端医療技術研究所. 324 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 江尻貞一: "走査電子顕微鏡"共立出版社(印刷中).

    • Related Report
      1999 Annual Research Report
  • [Publications] 網塚憲生: "カルシウムと骨"朝倉書店(印刷中).

    • Related Report
      1999 Annual Research Report
  • [Publications] Hiraga,T.他: "Morphology of bone metastasis." European Journal of Cancer. 34・2. 230-239 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kameda,T.他: "Calcium-sensing receptor in mature osteoclasts,which are bone resorbing cells." Biochemical and Biophysical Research Communications. 245. 419-422 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Beck,L.他: "Targeted inactivation of Npt2 in mice leads to severe renal phosphate wasting,hypercalciuria,and skeletal abnormalities." Proceedings of the National Academy of Science of the United States of America. 95. 5372-5377 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kabasawa,Y.他: "Immunoreactive localization of transforming growth factor-β type II receptor-positive cells in rat tibiae." Bone. 22・2. 93-98 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mizuno,A.他: "Swvere osteoporosis in mice lacking OCIF/OPG(Osteoclastogenesis inhibitory factor/Osteoprotegerin)." Biochemical and Biophysical Research Communications. 247. 610-615 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Amizuka,N.他: "Morphological examination of bone synthesis via direct administration of basic fibroblast growth factor into rat bone marrow." Microscopy Research and Technique. 41. 313-322 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Fukushi,M.他: "Intracellular retention and degradation of tissue-nonspecific alkaline phosphatase with a gly317 asp substitution associated with lethal hypophosphatasia." Biochemical and Biophysical Research Communications. 246. 613-618 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tanaka,M.他: "The effect of aging and ovariectomy on mandibular condyle in rats." The Journal of Prosthetic Dentistry. 79・6. 685-690 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ueda,J.他: "Experimental glaucoma model in the rat induced by laser trabecular photocoagulation after an intracameral injection of india ink." Japan Journal of Ophthalmology. 42. 337-344 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 上田 潤 他: "墨汁の前房内注入と隅角光凝固によるラット緑内障モデルの作製" 日本眼科学会雑誌. 102・4. 239-246 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshiba,N.他: "Immunohistochemical localizations of class II antigens and nerve fibers in human carious teeth:HLA-DR immunoreactivity in schwann cells." Archives of Histology and Cytology. 61・4. 343-352 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tanaka,Y.他: "Constitutive up-regulation of integrin-mediated adhesion of tumor-infiltrating lymphocytes to osteoblasts and bone marrow-derived stromal cells." Cancer Research. 58. 4138-4145 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hamamoto,Y.他: "Morphological changes of epithelial rests of Malassez in rat molars induced by local administration of N-methylnitrosourea." Archives of Oral Biology. 43. 899-906 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Irie,K.他: "Morphological and immunocytochemical characterization of primary osteogenic cell cultures derived from fetal rat cranial tissue." Anatomical Record. 252. 554-567 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "インプラント周囲骨の再生-微細構造学的にみた骨代謝-" 日本歯科医学会誌. 17. 130-133 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 1.骨のリモデリングのメカニズム" クインテッセンス・デンタル・インプラントロジー. 5・1. 73-75 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 2.骨の基本構造" クインテッセンス・デンタル・インプラントロジー. 5・2. 68-72 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 平賀 徹 他: "癌の骨転移病巣の組織像" CLINICAL CALCIUM. 8・3. 98-100 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 3.骨の細胞たち" クインテッセンス・デンタル・インプラントロジー. 5・3. 48-50 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨改造現象の形態学" 日本臨牀. 56・6. 24-41 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 4.骨の細胞たち-II" クインテッセンス・デンタル・インプラントロジー. 5・4. 78-83 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨改造現象の微細形態学的見解" 日本補綴歯科学会雑誌. 42・3. 359-368 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 濱本宜興 他: "マラッセの上皮遺残の臨床的役割" ザ・クインテッセンス. 17・5. 3-12 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨芽細胞と破骨細胞の超微細構造と機能" 実験医学. 16・1. 96-107 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 平賀 徹 他: "骨転移巣の微細形態" 病理と臨床. 17・1. 39-42 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨の構造と機能 1-骨の基本構造と骨形成系細胞-" 歯界展望. 92・5. 1123-1136 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨の構造と機能(2)-骨吸収と破骨細胞-" 歯界展望. 92・6. 1377-1392 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 5.骨の細胞たち-III" クインテッセンス・デンタル・インプラントロジー. 5・5. 70-74 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "破骨細胞におけるカルシトニンのカルシトニンレセプターへの作用" Osteoporosis Japan. 6・2. 143-148 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨・基礎講座 6.骨の細胞たち-IV" クインテッセンス・デンタル・インプラントロジー. 5・6. 62-69 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 樺澤裕未 他: "成長期ラット脛骨におけるTGF-βII型レセプターの局在と遺伝子発現の検討" 新潟歯学会雑誌. 28・1. 81-82 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 大橋直子 他: "成長ラット下顎頭軟骨の加齢に伴うI,II,Xコラーゲンの局在変化に関する免疫組織化学的研究" 新潟歯学会雑誌. 28・1. 85-86 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 泉 直也 他: "電子顕微鏡観察のための硬組織迅速脱灰法" 電子顕微鏡. 33・3. 202-204 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Karaplis A.他: "Blomstrand chondrodisplasia caused by a missense mutation in the human parathyroid hormone receptor-1." Endocrinology. 139・12. 5255-5258 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Amizuka N.他: "Vitamin D3 differentially regulates parathyroid hormone/parathyroid hormone-related peptide receptor expression in bone and cartilage." Journal of Clinical Investigation. 103・3. 373-381 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hoshi K.他: "The Primary calcification in bones follows removal of decorin and fusion of collagen fibrils." Journal of Bone and Mineral Research. 14・2. 273-280 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 平賀 徹 他: "癌の骨転移の微細形態" 腎と骨代謝. 12・1. 15-21 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "骨の微細構造" 月刊ザ・クインテッセンス. 18・1. 176-185 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Horiuchi K.他: "Identification and Characterization of a novel protein,Periostin(OSF-2)with restricted expression to periosteum and periodontal ligament and increased expression by transforming factor." Journal of Bone and Mineral Research. (in press).

    • Related Report
      1998 Annual Research Report
  • [Publications] Hoshi K.他: "Histopathological Characterization of Melorheostosis." Orthopedics. (in press).

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "カルシウムと骨代謝-最近の進歩-" 雪印株式会社健康生活研究所, 285 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "プラクティカル内科シリーズ4.骨粗鬆症" 南江堂, 230 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 網塚憲生 他: "カルシトニン-基礎と臨床-" ライフサイエンス出版, 235 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 池亀美華 他: "カルシトニン-基礎と臨床-" ライフサイエンス出版, 235 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小澤英浩: "最新骨粗鬆症" ライフサイエンス出版 (印刷中),

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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