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作 者:贾奇学[1] 邱波[1] 陈宣银[1] 程邦昌[2]
机构地区:[1]武汉大学人民医院骨科,430060 [2]武汉大学人民医院胸外科,430060
出 处:《中华实验外科杂志》2012年第4期723-725,共3页Chinese Journal of Experimental Surgery
基 金:湖北省卫生厅科研基金资助项目(JX4815)
摘 要:目的观察血管内皮生长因子(VEGF)对体外培养的关节软骨细胞基质金属蛋白酶-13(MMP-13)表达的影响。方法体外培养SD乳鼠关节软骨细胞,分为4组,每组加入不同处理因素进行干预,A组:(对照组)不加任何处理因素;B组:10μg/LVEGF;C组:10μg/L白细胞介素(IL)-1B;D组:10μg/LVEGF+10μg/L IL-1β。采用实时荧光定量聚合酶链反应(PCR)检测MMP-13mRNA的表达,蛋白免疫印迹法检测MMP-13蛋白的表达。结果B组(0.88±0.47)、C组(3.69±0.45)及D组(3.85±0.48)的MMP-13mRNA表达水平均显著高于A组(0.73±0.56),D组软骨细胞MMP-13的mRNA表达水平明显高于B组(P〈0.01)及c组(P〈0.05)。与A组(0.36±0.17)比较,B组(0.63±0.21)、c组(0.76±0.24)及D组(0.99±0.26)的MMP-13蛋白表达水平显著升高,D组MMP-13的蛋白表达水平明显高于B组(P〈0.05)及c组(P〈0.05)。结论在骨关节炎的发病过程中VEGF可能通过上调软骨细胞MMP-13的表达发挥重要作用。Objective To investigate the effect of vascular endothelial growth factor (VEGF) on matrix metalloproteinase 13 (MMP-13) expression in rat articular chondrocytes in vitro. Methods Chon- drocytes were isolated and cultured. Four groups were set up: group A (Control) without any disposal; group B ( 10μg/L VEGF) ; group C ( 10μg/L IL-113) ; group D ( 10 jxg/L VEGF + 10 μg/L IL-113). The mRNA and protein expression of MMP-13 was detected by using Real-time polymerase chain reaction (PCR) and Western blotting respectively. Results The MMP-13 mRNA expression levels in group B (0. 88±0. 47 ), group C (3.69±0. 45 ) and group D (3.85 ±0.48 ) were significantly higher than in group A (0. 73±0. 56) , and there was significant difference between group B and group D (P 〈0. 01 ) , and group C and group D ( P 〈 0. 05 ). As compared with group A ( 0. 36 ±0. 17 ) , the expression of MMP-13 protein in group B (0. 63±0. 21), group C (0. 76 +0. 24) and group D (0. 99±0. 26) was increased significantly. There was significant difference between group B and group D ( P 〈 0. 05 ) , and group C and group D (P 〈 0. 05). Conclusion VEGF may upregulate the expression of MMP-13 in rat articular ehon- drocytes, which may be important in the pathogenesis of osteoarthritis.
关 键 词:血管内皮生长因子 骨关节炎 软骨细胞 基质金属蛋白酶-13
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