基质金属蛋白酶-13在氟铝致大鼠关节软骨细胞损伤中的表达  被引量:1

Expression of matrix metalloproteinases-13 in the damage process of rat articular chondrocyte induced by fluoride and aluminium

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作  者:张丽薇[1] 高彦辉[1] 耿利彬[1] 高琳[1] 孙殿军[1] 

机构地区:[1]哈尔滨医科大学中国疾病预防控制中心地方病控制中心地氟病防治研究所,150081

出  处:《中国地方病学杂志》2009年第2期138-141,共4页Chinese Jouranl of Endemiology

基  金:国家自然科学基金(30571614)

摘  要:目的观察氟、铝对大鼠关节软骨细胞基质金属蛋白酶-13(MMP-13)表达的影响。方法培养大鼠原代软骨细胞.分为加氟组、加铝组、氟+铝组和对照组,分别应用终浓度为1mmoL/L的NaF和2mmol/L的AlCl3染毒24、48、72h,在不同时间提取细胞,用反转录聚合酶链反应(RT—PCR)检测MMP—13mRNA表达,并用Western—blot方法检测其蛋白表达。结果染毒24h,加氟组(0.830±0.043)、加铝组(1.279±0.060)、氟+铝组(0.983±0.028)MMP-13mRNA水平均高于对照组(0.707±0.026,P〈0.05),其中加铝组相对表达量最高;染毒48h,加氟组(0.964±0.180)、加铝组(1.333±0.105)、氟+铝组(0.915±0.137)MMP-13mRNA水平均高于对照组(0.660±0.055,P〈0.05),加铝组相对表达量仍最高;染毒72h,加氟组(0.866±0.115)、加铝组(0.846±0.089)、氟+铝组(0.967±0.196)MMP-13mRNA水平与对照组(0.809±0.179)比较,差异无统计学意义(P〉0.05)。染毒24h,加氟组(1.050±0.084)、加铝组(1.010±0.113)、氟+铝组(0.977±0.202)MMP-13蛋白水平与对照组(0.8604±0.038)比较,差异无统计学意义(P〉0.05);染毒48h,加氟组(0.671±0.020)、加铝组(1.134±0.094)、氟+铝组(0.923±0.087)MMP-13蛋白水平均高于对照组(0.647±0.025,P〈0.05),但各实验组之间比较差异无统计学意义(P〉0.05);染毒72h,加氟组(0.672±0.022)、加铝组(1.088±0.072)、氟+铝组(0.772±0.030)MMP-13蛋白水平均高于对照组(0.577±0.026,P〈0.05),其中加铝组最高,同加氟组和氟+铝组比较,差异均有统计学意义(P〈0.05)。结论氟、铝对软骨细胞有一定的损伤作用,铝单独作用的毒性要大于氟和氟+铝组,氟、铝致软骨细胞损伤过程中伴MMP-13表达异常。Objective To observe the influence of fluoride and aluminum on the expression of matrix metalloproteinase-13 (MMP-13) in rat articular chondrocytes. Methods Original generation chondrocytes of rats was cultured and divided into fluoride group, aluminum group, fluoride plus aluminum group and control group. NaF and AlCl3 at concentrations of 1 mmol/L and 2 mmol/L were administered to intoxicate the cells for 24, 48, 72 h respectively. Cells were extracted to undergo reverse transcription the polymerase chain reaction(RT-PCR) at different times to observe mRNA expression of MMP-13, and protein expression was detected by Western-blot. Results In 24 h, the content of MMP-13 mRNA in fluoride group(0.830 ± 0.043), aluminum group(1.279 ± 0.060) and fluoride plus aluminum group(0.983 ± 0.028) was higher than that in the control group(0.707± 0.026, P 〈 0.05), and relative expression of MMP-13 mRNA in aluminum group was the highest. In 48 h, the content of MMP-13 mRNA in fluoride group (0.964 ± 0.180), aluminum group( 1.333± 0.105) and fluoride plus aluminum group (0.915± 0.137) was higher than that in the control group(0.660 ±0.055, P 〈 0.05), and the relative expression in aluminum group was the highest. In 72 h, the content of MMP-13 mRNA in fluoride group(0.866 ± 0.115), aluminum group(0.846 ± 0.089) and fluoride plus aluminum group(0.967±0.196) had no statistical significance (P 〉 0.05) compared with the control group(0.809±0.179). In 24 h, the content of MMP-13 protein in fluoride group( 1.050± 0.084), aluminum group( 1.010 ± 0.113 ) and fluoride plus aluminum group (0.977 ± 0.202) had no statistical signifieance(P 〉 0.05 ) compared with the control group (0.860 ± 0.038 ). In 48 h, the content of MMP-13 protein in fluoride group (0.671 ± 0.020), aluminum group(1.134 ± 0.094) and fluoride plus aluminum group (0.923± 0.087) was higher than that in the control group (0.647± 0.025, P 〈 0.05), but

关 键 词:  基质金属蛋白酶13 关节 软骨细胞 

分 类 号:R686[医药卫生—骨科学]

 

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