...
首页> 外文期刊>Cell and Tissue Research >FGF2 and dexamethasone increase the production of hyaluronan in two-dimensional culture of elastic cartilage-derived cells: in vitro analyses and in vivo cartilage formation
【24h】

FGF2 and dexamethasone increase the production of hyaluronan in two-dimensional culture of elastic cartilage-derived cells: in vitro analyses and in vivo cartilage formation

机译:FGF2和地塞米松在弹性软骨衍生细胞的二维培养中增加透明质酸的产生:体外分析和体内软骨形成

获取原文
获取原文并翻译 | 示例
           

摘要

Elastic cartilage-derived cells cultured two-dimensionally with FGF2 and corticosteroid produce gel-type masses that become mature cartilage when injected into a subcutaneous pocket. This unique method has previously been clinically applied for treatments of nasal augmentation. However, the components of the gel-type mass and the mechanism of its synthesis remain unknown. Here, we have investigated the components of the gel-type mass produced by elastic cartilage-derived cells, and whether this gel-type mass can be produced by using other cell sources or other media. Human elastic cartilage-derived cells from auricular cartilage, hyaline cartilage-derived cells from articular cartilage, and mesenchymal stem cells from synovium were cultured in three media: “redifferentiation medium” containing FGF2 and dexamethasone; “chondrogenic medium” containing bone morphogenetic protein-2, transforming growth factor-β3, and dexamethasone specific for in vitro chondrogenesis of mesenchymal stem cells; control medium. The elastic cartilage-derived cells cultured in redifferentiation medium produced a gelatinous matrix positive for Alcian blue. During culture, the amount of chondroitin 4-sulfate, chondroitin 6-sulfate, and especially hyaluronan increased. However, the expression of RNAs for most chondrogenic genes did not increase. We also reproduced cartilage tissue formation by the injection of elastic cartilage-derived cells with the gelatinous mass into the subcutaneous space of the nude mouse. The synthesis of gelatinous matrix in vitro and the formation of cartilage tissue in vivo could be obtained only for the combination of elastic cartilage-derived cells with redifferentiation medium.
机译:用FGF2和皮质类固醇二维培养的源自软骨的弹性细胞产生凝胶型肿块,当注入皮下口袋时会变成成熟的软骨。这种独特的方法以前已经在临床上用于鼻腔隆鼻的治疗。然而,凝胶型物质的组成及其合成机理仍然未知。在这里,我们研究了由弹性软骨衍生的细胞产生的凝胶型物质的组成,以及是否可以通过使用其他细胞来源或其他介质来生产这种凝胶型物质。在三种培养基中培养来自耳软骨的人类弹性软骨细胞,来自关节软骨的透明软骨细胞以及滑膜的间充质干细胞:含有FGF2和地塞米松的“再分化培养基”;含有骨形态发生蛋白2,转化生长因子-β3和地塞米松的“软骨形成培养基”,对间充质干细胞的体外软骨形成具有特异性;控制介质。在再分化培养基中培养的源自软骨的弹性细胞产生了对阿尔辛蓝呈阳性的凝胶状基质。在培养期间,4-硫酸软骨素,6-硫酸软骨素,尤其是透明质酸的量增加。但是,大多数软骨生成基因的RNA表达并未增加。我们还通过将具有胶状物质的弹性软骨衍生细胞注入裸鼠的皮下空间来复制软骨组织的形成。仅将弹性软骨来源的细胞与再分化培养基结合才能获得体外凝胶状基质的合成和体内软骨组织的形成。

著录项

  • 来源
    《Cell and Tissue Research》 |2007年第3期|469-478|共10页
  • 作者单位

    Section of Orthopaedic Surgery Graduate School Tokyo Medical and Dental University Tokyo Japan;

    Section of Orthopaedic Surgery Graduate School Tokyo Medical and Dental University Tokyo Japan;

    Section of Orthopaedic Surgery Graduate School Tokyo Medical and Dental University Tokyo Japan;

    Section of Orthopaedic Surgery Graduate School Tokyo Medical and Dental University Tokyo Japan;

    Section of Cartilage Regeneration Graduate School Tokyo Medical and Dental University 1-5-45 Yushima Bunkyo-ku Tokyo 113-8519 Japan;

    Department of Plastic and Reconstructive Surgery Tokyo Medical and Dental University Tokyo Japan;

    Section of Cartilage Regeneration Graduate School Tokyo Medical and Dental University 1-5-45 Yushima Bunkyo-ku Tokyo 113-8519 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Chondrocytes; Elastic cartilage; Hyaline cartilage; Mesenchymal stem cells; Hyaluronan; Human; Mouse (BALB/cAJcl-nu);

    机译:软骨细胞;弹性软骨;透明质酸软骨;间充质干细胞;透明质酸;人类;小鼠(BALB / cAJcl-nu);

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号