Inhibition effects of a natural inhibitor on RANKL downstream cellular signalling cascades cross-talking.

Inhibition effects of a natural inhibitor on RANKL downstream cellular signalling cascades cross-talking.
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天然抑制剂对 RANKL 下游细胞信号级联串扰的抑制作用

DOI:
10.1111/jcmm.13703
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发表时间:
2018-09
影响因子:
5.3
通讯作者:
Kong L
Kong L
中科院分区:
医学2区
文献类型:
--
作者:
Wang B;Hao D;Zhang Z;Gao W;Pan H;Xiao Y;He B;Kong L

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杨梅苷是一种天然存在的黄酮苷,具有抑制一氧化氮(NO)传递和预防炎症反应的作用。虽然先前的研究表明杨梅苷通过降低IL-6的表达和部分抑制活性氧(ROS)的产生而具有抗骨丢失作用。然而,尚未进一步研究杨梅苷对核因子-kappaB配体(RANKL)刺激的破骨细胞生成的影响。本研究旨在证明杨梅苷对RANKL刺激的破骨细胞生成的抑制作用及其相关机制。我们发现杨梅苷显著抑制破骨细胞的生成,提示其可能作用于破骨细胞前体中RANKL/RANK诱导的下游信号交叉级联。其中,我们的Western印迹结果显示杨梅苷显著减弱RNAKL/MAPK(p38、ERK、JNK的磷酸化)和AKT信号级联。补充了以前的研究,我们的研究结果表明,杨梅苷作为一种天然抑制剂,具有潜在的治疗作用的炎性骨溶解。
Myricitrin is a natural occurring flavonoid glycoside that possesses effects on inhibiting nitric oxide (NO) transmission and preventing inflammatory reaction. Although previous study showed the myricitrin possesses antibone loss effects via reducing the expression of IL‐6 and partially suppressing reactive oxygen species (ROS) production. However, the effects of myricitrin on nuclear factor‐kappaB ligand (RANKL)‐stimulated osteoclastogenesis have not yet been further investigated. The current study was aimed to demonstrating the inhibitory effects of myricitrin on RANKL‐stimulated osteoclastogenesis and relevant mechanisms. We found myricitrin significantly suppressed osteoclastogenesis suggesting that it may acts on RANKL/RANK induced downstream signal cross cascading in osteoclast precursors. In that, our Western blotting results showed myricitrin significantly attenuated RNAKL/MAPKs (phosphorylation of p38, ERK, JNK) and AKT signal cascading. Complementing previous study, our results suggesting as a natural inhibitor, myricitrin possesses the potential therapeutic effects on inflammatory osteolysis.
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