Ann Rheum Dis:牙龈卟啉单胞菌诱导牙周炎和抗CCP2相关性关节炎

2019-02-07 MedSci MedSci原创

牙周病(PD)和类风湿性关节炎(RA)之间的关联已被广泛描述,但缺乏PD中因果关系的直接证据。我们研究了口腔牙龈卟啉单胞菌(牙龈卟啉单胞菌)在PD和随后的RA中的启动作用,并且我们评估了大鼠骨吸收和关节炎发展的生物标志物。将Lewis大鼠口服暴露于牙龈卟啉单胞菌,中间普氏菌或对照凝胶1个月,然后随访8个月。通过血清学,牙龈炎严重程度和微CT(μCT)评估PD的发生和发展。我们使用循环促炎标记物,抗

牙周病(PD)和类风湿性关节炎(RA)之间的关联已被广泛描述,但缺乏PD中因果关系的直接证据。我们研究了口腔牙龈卟啉单胞菌(牙龈卟啉单胞菌)在PD和随后的RA中的启动作用,并且我们评估了大鼠骨吸收和关节炎发展的生物标志物。

将Lewis大鼠口服暴露于牙龈卟啉单胞菌,中间普氏菌或对照凝胶1个月,然后随访8个月。通过血清学,牙龈炎严重程度和微CT(μCT)评估PD的发生和发展。我们使用循环促炎标记物,抗环瓜氨酸肽(CCP),抗癌蛋白抗体(ACPA),踝组织学和μCT研究了关节炎的发展。

结果显示,PD仅在牙龈卟啉单胞菌治疗的大鼠中观察到,早在暴露后1个月就可观察到。在4和8个月后仅在牙龈卟啉单胞菌组中检测到关节和全身炎症。在8个月时,在踝关节中观察到炎性细胞浸润,并且平行皮质糜烂和整体皮质骨减少。此外,抗CCP2与局部和全身骨丧失相关。

总之,本研究结果表明,口服接触牙龈卟啉单胞菌引起的PD引发血清阳性关节炎,伴有全身性炎症和骨丧失。这是口腔引发牙龈卟啉单胞菌引起的关节炎的首次体内证实。

原始出处:

Courbon G, Rinaudo-Gaujous M, et al., Porphyromonas gingivalis experimentally induces periodontis and an anti-CCP2-associated arthritis in the rat. Ann Rheum Dis. 2019 Jan 30. pii: annrheumdis-2018-213697. doi: 10.1136/annrheumdis-2018-213697.

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    2019-02-08 lmm397
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