Int J Mol Med:在中耳炎中,槲皮素能够抑制NTHi引起的CXCR4激活

2018-04-04 AlexYang MedSci原创

中耳炎在儿童中是一种最常见的的细菌感染之一,并且能够导致听力损失。一种非常重要的能够导致中耳炎的细菌病原体是嗜血杆菌(NTHi)。炎症反应是中耳炎的一种重要的特征。趋化因子CXC受体4(CXCR4)是一个由352个氨基酸组成的7次跨膜G蛋白偶联受体,并且对炎症反应是必要的。然而,有NTHi调节的CXCR4功能的改变的相关可能的分子机制仍旧不清楚。最近,有研究人员通过研究表明,NTHi能够通过IKK

中耳炎在儿童中是一种最常见的的细菌感染之一,并且能够导致听力损失。一种非常重要的能够导致中耳炎的细菌病原体是嗜血杆菌(NTHi)。炎症反应是中耳炎的一种重要的特征。趋化因子CXC受体4(CXCR4)是一个由352个氨基酸组成的7次跨膜G蛋白偶联受体,并且对炎症反应是必要的。然而,有NTHi调节的CXCR4功能的改变的相关可能的分子机制仍旧不清楚。

最近,有研究人员通过研究表明,NTHi能够通过IKKα和p38的磷酸化来增强CXCR4的表达,这个过程依赖于核因子-κB(NF-κB)在体外的移位以及在小鼠中耳的体内移位。之前研究表明,一种主要从芦丁中分离的天然产物槲皮素具有抗炎症作用。研究人员报道了在体内和体外试验中,槲皮素能够抑制NTHi诱导的CXCR4表达。槲皮素可通过直接的IKKβ磷酸化抑制和p38 MAPK通路的抑制来阻断CXCR4的激活。

最后,研究人员指出,对槲皮素鉴定也许是治疗由NTHi诱导的中耳炎的一种潜在的治疗策略,具体是通过对炎症的抑制作用。

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    2018-04-06 chenwq09
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    2018-04-04 天地飞扬

    了解一下.谢谢分享!

    0

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