J Periodontal Res:牙龈卟啉单胞菌脂多糖调节人牙周膜成纤维细胞的ephrin/Eph信号

2017-09-16 MedSci MedSci原创

EphrinA2-EphA2和ephrinB2-EphB4参与双向信号转导以调节牙槽骨重建。本研究旨在研究牙龈卟啉单胞菌脂多糖(LPS)对牙周膜成纤维细胞(PDLFs)中的ephrin / Eph信号传导的影响。

EphrinA2-EphA2和ephrinB2-EphB4参与双向信号转导以调节牙槽骨重建。本研究旨在研究牙龈卟啉单胞菌脂多糖(LPS)对牙周膜成纤维细胞(PDLFs)中的ephrin / Eph信号传导的影响。

材料与方法:将原代培养的PDLF在存在或不存在(作为对照)0.001-10μg/ mL的牙龈卟啉单胞菌LPS的情况下孵育24小时。然后用不同时期(6-48小时)的最佳浓度(0.1μg/ mL)用牙龈卟啉单胞菌肽(P gangivalisLPS)刺激PDLF。通过定量逆转录实时聚合酶链反应和蛋白质印迹法评估ephrinA2,ephrinB2,EphA2和EphB4的表达。评估成骨细胞标志物碱性磷酸酶,骨钙素和Runt相关转录因子2(Runx2)以及核因子κB配体(RANKL)和骨保护素的破骨细胞发生相关因子受体激活剂。

结果:牙龈卟啉单胞菌LPS促使ephrinA2和EphA2表达上调,EphB4表达下降。PDLFs中的EphrinA2 mRNA表达在12?48小时显着上调(P <0.05),而EphA2在前24小时表达无变化,其后48小时显着增加(P <0.05)。 EphB4 mRNA在12和24小时表达较对照组低(P <0.05),但在48小时时变化不明显。相比之下,ephrinB2的表达保持不变。 EphrinA2,EphA2,ephrinB2和EphB4在蛋白质水平上的表达与mRNA水平相似。 Runx2和骨钙素的表达显着降低,而RANKL /骨保护素的表达增加。

结论:本研究表明,牙龈卟啉单胞菌LPS将有助于骨重建失调,从而刺激ephrinA2 / EphA2表达,并抑制EphB4表达。

原始出处:

M. Li, C. Zhang, L. Jin, et al. Porphyromonas gingivalis lipopolysaccharide regulates ephrin/Eph signalling in human periodontal ligament fibroblasts. Journal of Periodontal Research. 2017 October. doi: 10.1111/jre.12463

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    2018-08-29 xqptu
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content=学习了受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDicHg2ldsSNmib46PmdzpO7CQEmPjuULp1v45zPWwMYhrnXgvl3OtmUCZSQfgITWn96X9moL94nUGA/0, createdBy=28072041016, createdName=131****1460, createdTime=Sat Sep 16 21:09:10 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244707, encodeId=2bac244e07bf, content=学习了谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Sat Sep 16 20:56:57 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244696, encodeId=0525244696b1, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sat Sep 16 20:10:21 CST 2017, time=2017-09-16, status=1, ipAttribution=)]
    2018-04-19 feather89
  8. 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    2017-09-16 131****1460

    学习了受益匪浅

    0

  9. 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ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244696, encodeId=0525244696b1, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sat Sep 16 20:10:21 CST 2017, time=2017-09-16, status=1, ipAttribution=)]
    2017-09-16 1e145228m78(暂无匿称)

    学习了谢谢作者分享!

    0

  10. 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ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244696, encodeId=0525244696b1, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sat Sep 16 20:10:21 CST 2017, time=2017-09-16, status=1, ipAttribution=)]
    2017-09-16 榄枷檬

    谢谢分享

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