Biol Pharm Bull:抗小鼠RANKL抗体抑制牙周炎模型小鼠牙槽骨破坏

2018-04-05 MedSci MedSci原创

Denosumab是一种抗骨吸收药物,由完全人单克隆抗体组成,靶向受体激活核因子κB配体(RANKL),负责破骨细胞的形成。该药物可用于治疗骨疾病,如骨质疏松症和与癌症有关的骨转移,但不用于治疗与牙周炎有关的牙槽骨破坏。在本研究中,我们旨在阐明denosumab是否可防止脂多糖(LPS)诱导的颅盖炎症以及实验性牙周炎小鼠模型中相关的骨质破坏。由于denosumab不与小鼠RANKL结合,因此我们使

Denosumab是一种抗骨吸收药物,由完全人单克隆抗体组成,靶向受体激活核因子κB配体(RANKL),负责破骨细胞的形成。该药物可用于治疗骨疾病,如骨质疏松症和与癌症有关的骨转移,但不用于治疗与牙周炎有关的牙槽骨破坏。

在本研究中,我们旨在阐明denosumab是否可防止脂多糖(LPS)诱导的颅盖炎症以及实验性牙周炎小鼠模型中相关的骨质破坏。由于denosumab不与小鼠RANKL结合,因此我们使用抗小鼠单克隆RANKL抗体。此外,我们还研究了另一种抗骨吸收药物zoledronate(一种含氮双膦酸盐)对骨破坏的抑制作用。

结果显示,将抗RANKL抗体局部应用到颅盖区域抑制了LPS诱导的破骨细胞形成和骨破坏,而唑来膦酸盐由于其不同的作用机制而抑制了骨破坏而非破骨细胞形成。在牙周炎模型小鼠中,丝线结扎第二臼齿以诱导炎症,腹膜内施用抗RANKL抗体可明显抑制牙槽骨破坏和牙根暴露。另一方面,唑来膦酸盐仅弱抑制牙槽骨破坏并且不能抑制牙根暴露。

综上所述,这些结果表明,denosumab是预防与牙周炎相关的牙槽骨破坏的一种有希望的候选者。

原始出处:

Kuritani M, Sakai N, et al., Anti-mouse RANKL Antibodies Inhibit Alveolar Bone Destruction in Periodontitis Model Mice. Biol Pharm Bull. 2018;41(4):637-643. doi: 10.1248/bpb.b18-00026.

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    2018-06-03 mei540
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    2019-01-04 sunylz
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    2018-04-29 jj000001
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