Mol Med Rep:NEMO结合域肽改善金黄色葡萄球菌诱导的炎性骨破坏

2019-03-04 不详 网络

骨髓炎的特征在于进行性炎性骨破坏和再吸收,是难以治疗的感染。金黄色葡萄球菌(金黄色葡萄球菌)是该病的主要原因之一。该病原微生物具有几个特征,有助于其参与骨髓炎的发生和发展。据报道,IκB激酶复合物的细胞渗透性肽抑制剂核因子(NF)-κB必需调节剂结合结构域(NBD)肽可阻断破骨细胞生成,并且可被认为是预防炎性骨吸收的潜在策略。然而,仍然需要确定NBD肽是否可以调节金黄色葡萄球菌诱导的骨髓炎中的炎症

骨髓炎的特征在于进行性炎性骨破坏和再吸收,是难以治疗的感染。金黄色葡萄球菌(金黄色葡萄球菌)是该病的主要原因之一。该病原微生物具有几个特征,有助于其参与骨髓炎的发生和发展。据报道,IκB激酶复合物的细胞渗透性肽抑制剂核因子(NF)-κB必需调节剂结合结构域(NBD)肽可阻断破骨细胞生成,并且可被认为是预防炎性骨吸收的潜在策略。然而,仍然需要确定NBD肽是否可以调节金黄色葡萄球菌诱导的骨髓炎中的炎症和骨吸收。

为了研究NBD在金黄色葡萄球菌诱导的骨髓炎中的作用,本研究获得了NBD肽,并证实其在体外抑制NF-κB配体诱导的破骨细胞生成的受体激活剂。随后,产生骨缺损并将金黄色葡萄球菌注射到实验动物的下颌骨中,以建立体内骨髓炎模型。本研究分析了以下三个实验组:未经治疗,用清创术治疗,并用清创术加NBD肽给药治疗。结果显示,用NBD肽处理以三维方式减少骨缺损,并减少骨吸收。

据我们所知,本研究首次证明,在由金黄色葡萄球菌引起的骨髓炎模型中,NBD肽在骨生成方向上起到抑制骨质溶解和促进骨重塑的作用。效果优于仅通过清创术产生的效果,因此表明它可能在骨髓炎中具有良好的治疗潜力。

原始出处:

Lan Y, Xie H, et al., NEMO binding domain peptide ameliorates inflammatory bone destruction in a Staphylococcus aureus induced chronic osteomyelitis model. Mol Med Rep. 2019 Feb 20. doi: 10.3892/mmr.2019.9975.

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