MMP-2、MMP-3、MMP-9、TIMP-3及Col-Ⅱ因子在兔软骨细胞损伤后的表达变化
发布时间:2018-07-28 10:00
【摘要】:检测MMP-2、MMP-3、MMP-9、TIMP-3及Ⅱ型胶原细胞外基质因子在正常兔关节软骨细胞和划伤后不同时间点的表达变化。在无菌条件下获取兔膝关节软骨细胞,原代体外培养软骨细胞,六孔板内制备细胞损伤模型。用显微镜观察正常细胞和损伤后1 d、3 d和7 d 3个时间点的软骨细胞增殖情况。采用实时PCR检测正常软骨细胞和损伤后1 d、3 d和7 d 3个时间点的基质金属蛋白酶-2、3和9,基质金属蛋白酶抑制物-3及Ⅱ型胶原的m RNA的表达水平。成功分离软骨,经原代培养后成功建立损伤细胞模型。MMP-2损伤后第1天与正常组相比升高,第3天时下降,第7天明显水平最高。与正常组相比,MMP-3在细胞损伤后第1天表达明显下降,随后第3天逐渐下降,第7天与第3天未见明显变化。MMP-9划伤后第1天比正常组升高,第3天上升至最高水平,第7天下降。TIMP-3基因在损伤后第1天与正常组相比明显下降,随后第3天稍有升高,第7天水平最低。Ⅱ型胶原划伤后第1天与正常组相比明显升高,随后第3天呈下降趋势接近于正常组,第7天又呈上升趋势。MMP-2、MMP-3、MMP-9、TIMP-3因子和Ⅱ型胶原在细胞损伤后的不同时间点有不同的表达行为,这可为调节细胞外基质基因治疗关节软骨损伤选择合适的靶基因和时间窗提供实验依据。
[Abstract]:The expression of MMP-2, MMP-3, MMP-9, TIMP-3 and extracellular matrix factor (ECF) in normal rabbit articular chondrocytes and at different time points after scratch were detected. The chondrocytes of rabbit knee joint were obtained under aseptic condition. The primary cultured chondrocytes were cultured in vitro. The proliferation of normal cells and chondrocytes at 3 and 7 days after injury were observed by microscope. The expression of matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-3 (MMP-2), matrix metalloproteinase-3 (MMP-2) and collagen type 鈪,
本文编号:2149730
[Abstract]:The expression of MMP-2, MMP-3, MMP-9, TIMP-3 and extracellular matrix factor (ECF) in normal rabbit articular chondrocytes and at different time points after scratch were detected. The chondrocytes of rabbit knee joint were obtained under aseptic condition. The primary cultured chondrocytes were cultured in vitro. The proliferation of normal cells and chondrocytes at 3 and 7 days after injury were observed by microscope. The expression of matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-3 (MMP-2), matrix metalloproteinase-3 (MMP-2) and collagen type 鈪,
本文编号:2149730
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