J Periodontol: 反式肉桂醛通过自噬激活抑制放线菌诱导的炎症反应

2018-05-28 MedSci MedSci原创

作为宿主防御机制,炎症是细菌感染的基本反应,可导致组织损伤。 Aggregatibacter actinomycetemcomitans(Aa)是侵袭性牙周炎的主要病原体,侵袭性牙周炎以牙周组织快速破坏为特征。反式肉桂醛是肉桂提取物的重要生物活性化合物,具有抗炎,抗氧化,解热,抗菌和抗癌特性。本研究的目的是研究反式肉桂醛抗人THP-1对Aa感染衍生巨噬细胞和Aa诱导小鼠牙周炎的抗炎作用。

作为宿主防御机制,炎症是细菌感染的基本反应,可导致组织损伤。 Aggregatibacter actinomycetemcomitans(Aa)是侵袭性牙周炎的主要病原体,侵袭性牙周炎以牙周组织快速破坏为特征。反式肉桂醛是肉桂提取物的重要生物活性化合物,具有抗炎,抗氧化,解热,抗菌和抗癌特性。本研究的目的是研究反式肉桂醛抗人THP-1对Aa感染衍生巨噬细胞和Aa诱导小鼠牙周炎的抗炎作用。

用佛波醇12-三磷酸酯13-乙酸酯分化THP-1细胞并用Aa感染。反式肉桂醛在细菌感染前30分钟预处理。通过酶联免疫吸附测定(ELISA)细胞因子,并通过蛋白质印迹分析检测蛋白表达。Cyto-ID检测自噬体的形成。进行活细胞计数以确定细菌粘附,内化和细胞内存活情况。通过口服Aa接种诱导小鼠实验性牙周炎,并且使用微型计算机断层扫描评估骨吸收情况。

结果:反式肉桂醛的预处理显着抑制了Aa刺激的TNF-α和IL-1β的释放。反式肉桂醛的预处理抑制了Aa诱导的TLR信号传导途径的表达以及JNK,p38和NF-κB的磷酸化。而且,反式肉桂醛处理下调pro-IL-1β,半胱天冬酶-1和炎性体组分的表达。反式肉桂醛处理显着降低Aa的细胞内存活。此外,自噬体形成和Beclin-1,ATG5和LC3等自噬标志物的表达增加。反式肉桂醛显着抑制Aa诱导的小鼠牙周炎中的骨吸收。

结论:反式肉桂醛抑制Aa刺激的炎症反应表达,并通过自噬激活抑制细胞内细菌存活。所以,反式肉桂醛可用作侵袭性牙周炎的抗炎剂。

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    2018-10-14 feather89
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    2018-12-02 howi
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1727321, encodeId=4ac61e2732109, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Oct 14 13:03:00 CST 2018, time=2018-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083624, encodeId=80252083624d5, content=<a href='/topic/show?id=ecb05e4399a' target=_blank style='color:#2F92EE;'>#放线菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57439, encryptionId=ecb05e4399a, topicName=放线菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun Dec 02 16:03:00 CST 2018, time=2018-12-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2043224, encodeId=7bf12043224b5, content=<a href='/topic/show?id=c6d73e744c9' target=_blank style='color:#2F92EE;'>#反式肉桂醛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37744, encryptionId=c6d73e744c9, topicName=反式肉桂醛)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=640c454, createdName=qblt, createdTime=Sat Sep 01 02:03:00 CST 2018, time=2018-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1320859, encodeId=26f8132085914, content=<a href='/topic/show?id=43de6e0076f' target=_blank style='color:#2F92EE;'>#炎症反应#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67007, encryptionId=43de6e0076f, topicName=炎症反应)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Wed May 30 12:03:00 CST 2018, time=2018-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319469, encodeId=6f00319469fd, content=不错的文章值得学习到了, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Mon May 28 22:57:19 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319466, encodeId=7db23194661f, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Mon May 28 22:51:13 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319457, encodeId=f5aa31945e9e, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Mon May 28 22:35:11 CST 2018, time=2018-05-28, status=1, ipAttribution=)]
    2018-05-28 131****2916

    不错的文章值得学习到了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1727321, encodeId=4ac61e2732109, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Oct 14 13:03:00 CST 2018, time=2018-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083624, encodeId=80252083624d5, content=<a href='/topic/show?id=ecb05e4399a' target=_blank style='color:#2F92EE;'>#放线菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57439, encryptionId=ecb05e4399a, topicName=放线菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun Dec 02 16:03:00 CST 2018, time=2018-12-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2043224, encodeId=7bf12043224b5, content=<a href='/topic/show?id=c6d73e744c9' target=_blank style='color:#2F92EE;'>#反式肉桂醛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37744, encryptionId=c6d73e744c9, topicName=反式肉桂醛)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=640c454, createdName=qblt, createdTime=Sat Sep 01 02:03:00 CST 2018, time=2018-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1320859, encodeId=26f8132085914, content=<a href='/topic/show?id=43de6e0076f' target=_blank style='color:#2F92EE;'>#炎症反应#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67007, encryptionId=43de6e0076f, topicName=炎症反应)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Wed May 30 12:03:00 CST 2018, time=2018-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319469, encodeId=6f00319469fd, content=不错的文章值得学习到了, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Mon May 28 22:57:19 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319466, encodeId=7db23194661f, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Mon May 28 22:51:13 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319457, encodeId=f5aa31945e9e, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Mon May 28 22:35:11 CST 2018, time=2018-05-28, status=1, ipAttribution=)]
    2018-05-28 天地飞扬

    了解一下.谢谢分享!

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1727321, encodeId=4ac61e2732109, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Oct 14 13:03:00 CST 2018, time=2018-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083624, encodeId=80252083624d5, content=<a href='/topic/show?id=ecb05e4399a' target=_blank style='color:#2F92EE;'>#放线菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57439, encryptionId=ecb05e4399a, topicName=放线菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun Dec 02 16:03:00 CST 2018, time=2018-12-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2043224, encodeId=7bf12043224b5, content=<a href='/topic/show?id=c6d73e744c9' target=_blank style='color:#2F92EE;'>#反式肉桂醛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37744, encryptionId=c6d73e744c9, topicName=反式肉桂醛)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=640c454, createdName=qblt, createdTime=Sat Sep 01 02:03:00 CST 2018, time=2018-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1320859, encodeId=26f8132085914, content=<a href='/topic/show?id=43de6e0076f' target=_blank style='color:#2F92EE;'>#炎症反应#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67007, encryptionId=43de6e0076f, topicName=炎症反应)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Wed May 30 12:03:00 CST 2018, time=2018-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319469, encodeId=6f00319469fd, content=不错的文章值得学习到了, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Mon May 28 22:57:19 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319466, encodeId=7db23194661f, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Mon May 28 22:51:13 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319457, encodeId=f5aa31945e9e, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Mon May 28 22:35:11 CST 2018, time=2018-05-28, status=1, ipAttribution=)]
    2018-05-28 1e1b8538m79(暂无匿称)

    不错的文章值得拥有哦

    0

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研究揭示反式肉桂醛的抗炎作用及机制

炎症是先天免疫系统对各种感染的重要反应。巨噬细胞是一种在炎症中起关键作用的免疫细胞。最近的研究报道说,多种天然化合物可以调节免疫反应,如炎症。反式肉桂醛(TCA)是一种来自肉桂的天然化合物,在肉桂树皮中尤其丰富。先前的研究报道TCA具有抗生物膜、抗微生物和抗癌活性。然而,TCA对巨噬细胞的抗炎作用及其机制尚不清楚。 在这项研究中,研究人员探究了TCA对RAW 264.7小鼠巨噬细胞系的抗炎作用。主