Taipei Medical University Institutional Repository:Item 987654321/4890
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    Please use this identifier to cite or link to this item: http://libir.tmu.edu.tw/handle/987654321/4890


    Title: 研究以電氣紡絲製備生物可降解性支架以及其用於軟骨組織工程的可能性
    Fabrication and characterization of biodegradable scaffold by electrospinning and its potential for cartilage tissue engineering
    Authors: 洪健翔
    Ching-Hsiang Hung
    Contributors: 醫學檢驗暨生物技術學研究所
    Keywords: 人類初代膝蓋軟骨細胞
    電氣紡絲
    primary human articular chondrocytes
    electrospinning
    Date: 2005
    Issue Date: 2009-09-10 17:19:51 (UTC+8)
    Abstract: 本篇論文最主要的目的是在研究與發展軟骨組織工程。我們利用電氣紡絲的方式去製備PLLA及PBSA scaffolds。首先，我們建立一個人類初代軟骨的培養模式。此外，我們應用這初代細胞培養模式，將細胞養在PLLA scaffold、PBSA scaffold及TCPS(tissue culture polystyrene)上。我們發現在第一週，細胞在PLLA及PBSA scaffold上生長狀態比在TCPS上生長的差，但是，一週之後在PLLA及PBSA scaffold生長速度有增加。在利用PLLA 及PBSA scaffold培養細胞14及28後，Aggrecan及Type II Collagen的mRNA表現都有上升的趨勢。這個結果證實將細胞利用3D培養會使的軟骨細胞開始有re-differentiation的現象。在SEM的圖顯現出這樣的scaffold的結構能夠提供初代軟骨細胞貼附及生長。同時，這樣的結構也會維持細胞的特殊型態。如此一來，在未來利用PLLA及PBSA scaffolds修復軟骨是有可能性的。
    The specific aim of this thesis is development and investigation of cartilage tissue engineering. We have fabricated scaffolds PLLA (Poly L-lactic acid) and PBSA (Poly butylene succinate-co-adipate) with electrospinning. We have set up human articular primary chondrocytes cell. Furthermore, we applied the primary cell culture, seeded on PLLA PBSA sacffold and TCPS (tissue culture polystyrene). We found that cells on the PLLA and PBSA scaffold grew worse than TCPS(tissue culture polystyrene) the first week but the growth rate increased after that. After 14 and 28 days in culture, mRNA expression of Aggrecan and collagen Type II was up-regulated in both PLLA and PBSA scaffolds. This result demonstrated that three-dimensional tissue culture of expanded articular chondrocytes initiated chondrocyte re-differentiation in vitro. Scanning electronic microscope images showed that scaffold structure provided for the adhesion and spreading of human primary chondrocyte cell. The scaffold maintained characteristic cell morphology at the same time. The PLLA and PBSA scaffolds, thus, have the potential to be further processed into three-dimensional scaffolds for cartilage tissue repair.
    Data Type: thesis
    Appears in Collections:[ ] Dissertations/Theses

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