歯髄体性幹細胞の可塑性と分化転換機構の解析

牙髓成体干细胞可塑性及​​转分化机制分析

基本信息

  • 批准号:
    18791574
  • 负责人:
  • 金额:
    $ 2.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
  • 财政年份:
    2006
  • 资助国家:
    日本
  • 起止时间:
    2006 至 2007
  • 项目状态:
    已结题

项目摘要

ヒト歯髄組織は,十分なインフォームドコンセントにより承諾を得た矯正治療患者からの治療上必要と診断された抜去歯牙を用い,摘出した歯髄組織を10%牛胎児血清添加イーグル変法MEM培地を用いてExplant Culture法で培養した.歯髄組織よりoutgrowthした細胞を分散後5-8代まで継代し,それぞれの分化誘導培地で培養した.象牙芽細胞および骨芽細胞の分化誘導では0.1mMデキサメタゾン,0.05mMアスコルビン酸,10mMβ-グリセロフォスフェイトを含むMSC培地を用い,軟骨芽細胞への分化には0.01μg/mlのTGF-β3を添加した.脂肪細胞への分化誘導には0.01mg/mlインスリン,0.2mMインドメタシン,0.5mM3-イソブチル-1-メチルキサンチンを含む培地を用いた.神経細胞への分化誘導には10ng/mlEGF,20ng/ml FGF-2,10ng/ml LIFを添加する.破骨細胞(または破歯細胞)への分化には活性型vitamin D3,Prostaglandin E2などの骨吸収因子を用いた.分化した細胞形質の検討では,象牙芽細胞はdentin matrix protein(DMP)1,core binding factor α(Cbfa)1,Bone sialoprotein(BSP),DMP2,osteocalcin(OC),alkaline phosphatase(ALP),骨芽細胞ではOC,Type I collagen,ALP,receptor activator of NF-Kb(RANKL),軟骨細胞ではbone morphogenic protein(BMP)-2,BMP-4,Collagen Type IIの発現について,RT-PCR,In situ hybridization,免疫組織染色を行った.破骨細胞ではカルシトニンレセプターの局在とTRAP染色および象牙質片上の吸収窩形成実験(pit formation assay)を行い,倒立顕微鏡(ニコン:ECLIPSE TE2000)で同定した.その結果,歯髄組織由来培養細胞では,象牙芽細胞,骨芽細胞ならびに脂肪細胞の形質を有する細胞が誘導され,組織体性幹細胞の存在することが示唆された.また,破骨細胞への分化誘導は,象牙芽細胞や骨芽細胞に比べ誘導効率が低いことが明らかとなった.
In this study, it is necessary to remove the teeth in the correct treatment of patients who need to have their teeth removed, and then extract 10% of the fetal bovine serum and add it to the MEM culture method. Use the Explant Culture method. After the outgrowth cells were dispersed for 5-8 generations, the tissue culture was induced by differentiation. The differentiation of ivory buds and bone buds led to the differentiation of 0.1mM buds, 10mM β-buds, 10mM β-buds and MSC-β 3 cells. The differentiation of fat cells leads to the differentiation of 0.01mg/ml cells, 0.2mM cells, 0.5mm M3-fat cells, 0.5mM3-fat cells, and so on. The differentiation of mycelia leads to the addition of 10 ng FGF-2,10ng/ml LIF ml EGF to 20 ng ml EGF. Osteoclast cells (osteoclast cells) were differentiated into active vitamin D3 menstruum Prostaglandin E2 cells. Bone resorption factor was used. The cells of ivory buds, dentin matrix protein (DMP), core binding factor α (Cbfa), BSP (BSP), DMP2,osteocalcin (OC), alkaline phosphatase (ALP), OC,Type I collagen,ALP,receptor activator of NF-Kb (RANKL), bone morphogenic protein (BMP)-2, RT-PCR,In situ hybridization, and immuno-tissue staining were detected. The broken bone was stained with TRAP to form an ivory (pit formation assay) line, and the handstand micro (pit formation assay) was homotypic. The results showed that the tissue culture resulted in cell culture, ivory bud cell, bone bud cell, fat cell, fat cell, and tissue tissue. The rate of ivory bud differentiation is lower than that of ivory bud differentiation.

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Inorganic polyphosphate: a possible stimulant of bone formation
  • DOI:
    10.1177/154405910708600917
  • 发表时间:
    2007-09-01
  • 期刊:
  • 影响因子:
    7.6
  • 作者:
    Hacchou, Y.;Uematsu, T.;Furusawa, K.
  • 通讯作者:
    Furusawa, K.
骨芽細胞に対するポリリン酸の作用とポリリン酸代謝機構
多聚磷酸盐对成骨细胞的影响及多聚磷酸盐代谢机制
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    蔦谷さつき;田渕雅子;薮本貴洋;宮澤健;後藤滋巳;Masako Tabuchi;Masako Tabuchi;Y. Hacchou;薄井 陽平
  • 通讯作者:
    薄井 陽平
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薄井 陽平其他文献

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