Oral Dis:齿垢密螺旋体感染的上皮细胞的行为的变化

2018-03-03 MedSci MedSci原创

龈沟中,上皮细胞和牙周致病菌之间相互作用对于牙周炎的进展是重要的。齿垢密螺旋体是慢性牙周炎的主要病原体,具有多种毒力因子,如主要表面蛋白(Msp)和脯氨酰-苯丙氨酸特异性蛋白酶(dentilisin)。在这里,我们通过测量白细胞介素(IL)-1β,IL-6,β防御素2(BD-2)和热休克蛋白70(HSP70)的表达来研究齿垢密螺旋体感染的上皮细胞的行为。 用齿垢密螺旋体野生型菌株,Msp缺陷型突变

龈沟中,上皮细胞和牙周致病菌之间相互作用对于牙周炎的进展是重要的。齿垢密螺旋体是慢性牙周炎的主要病原体,具有多种毒力因子,如主要表面蛋白(Msp)和脯氨酰-苯丙氨酸特异性蛋白酶(dentilisin)。在这里,我们通过测量白细胞介素(IL)-1β,IL-6,β防御素2(BD-2)和热休克蛋白70(HSP70)的表达来研究齿垢密螺旋体感染的上皮细胞的行为。

用齿垢密螺旋体野生型菌株,Msp缺陷型突变体或Dentilisin缺陷型突变体感染上皮细胞,并通过聚合酶链式反应分析上述靶标的表达水平。

结果显示,齿垢密螺旋体野生型菌株和突变体的感染诱导IL-6和HSP70的产生。齿垢密螺旋体野生型菌株在24小时诱导的BD-2水平明显高于dentilisin-缺陷型突变体。野生型菌株和dentilisin-缺陷突变体中IL-1βmRNA的水平略低于未感染对照组中的水平。

这些结果表明BD-2的水平受到Msp和dentilisin的影响。这种作用可能有助于破坏上皮细胞根除齿垢密螺旋体的反应。

原始出处:


Kokubu E, Inoue T, Ishihara K. Response of epithelial cells infected by Treponema denticola. Oral Dis. 2018 Mar;24(1-2):14-18. doi: 10.1111/odi.12794.

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    2018-07-07 小几洁
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