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Clin Oral Invest: CRAMP在大鼠牙胚和修复牙本质形成过程中的表达和定位

2018-08-24 MedSci MedSci原创

Cathelicidin相关的抗微生物肽(CRAMP)是小鼠和大鼠中与人类LL-37同源的抗微生物肽。除了其抗菌活性外,CRAMP还通过与甲酰肽受体2(FPR2)结合而具有多种生理功能。然而,这些肽在牙齿中的作用尚不清楚。因此,我们研究了CRAMP和FPR2在牙齿发育,修复性牙本质形成和防御反应中的作用。

Cathelicidin相关的抗微生物肽(CRAMP)是小鼠和大鼠中与人类LL-37同源的抗微生物肽。除了其抗菌活性外,CRAMP还通过与甲酰肽受体2(FPR2)结合而具有多种生理功能。然而,这些肽在牙齿中的作用尚不清楚。因此,我们研究了CRAMP和FPR2在牙齿发育,修复性牙本质形成和防御反应中的作用。

首先,通过免疫组织化学分析检查了牙齿发育过程中的CRAMP和FPR2。然后通过免疫组织化学分析研究了牙髓炎和髓腔预备后修复性牙本质形成过程中的CRAMP,FPR2和CD68阳性巨噬细胞。最后,通过实时逆转录PCR分析脂多糖(LPS)对牙髓细胞中CRAMP和FPR2表达的影响。

结果:在牙齿发育的钟状期阶段,在成牙本质细胞中检测到CRAMP,在前成牙本质细胞层中观察到FPR2。在成熟牙齿中,未检测到CRAMP,但FPR2继续定位于前成牙本质细胞层。在髓腔预备后修复的早期阶段,髓腔下方的牙髓组织中发现CRAMP阳性细胞和巨噬细胞。在修复性牙本质形成的后续阶段,在与修复性牙本质接触的成牙本质细胞样细胞中观察到CRAMP。在成牙本质细胞样细胞和邻近细胞中也检测到FPR2免疫反应。 LPS在体外刺激牙髓细胞中CRAMP mRNA的表达。

在生理和修复性牙本质形成期间观察到CRAMP及其受体FPR2阳性细胞。

原始出处:

Kanji Horibe, et al. Expression and localization of CRAMP in rat tooth germ and during reparative dentin formation. Clinical Oral Investigations. 2018 September. doi:10.1007/s00784-018-2353-x

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  2. [GetPortalCommentsPageByObjectIdResponse(id=2051218, encodeId=9eb02051218a7, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Tue Feb 19 19:31:00 CST 2019, time=2019-02-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020464, encodeId=d4ac2020464a0, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Fri Dec 28 06:31:00 CST 2018, time=2018-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441906, encodeId=e2d614419067d, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Sun Aug 26 12:31:00 CST 2018, time=2018-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340619, encodeId=6e93340619a7, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Fri Aug 24 23:21:38 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340606, encodeId=a52534060694, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, 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=Fri Aug 24 22:38:45 CST 2018, time=2018-08-24, status=1, ipAttribution=)]
    2018-12-28 小几洁
  3. [GetPortalCommentsPageByObjectIdResponse(id=2051218, encodeId=9eb02051218a7, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Tue Feb 19 19:31:00 CST 2019, time=2019-02-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020464, encodeId=d4ac2020464a0, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Fri Dec 28 06:31:00 CST 2018, time=2018-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441906, encodeId=e2d614419067d, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Sun Aug 26 12:31:00 CST 2018, time=2018-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340619, encodeId=6e93340619a7, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Fri Aug 24 23:21:38 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340606, encodeId=a52534060694, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, 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=Fri Aug 24 22:38:45 CST 2018, time=2018-08-24, status=1, ipAttribution=)]
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    2018-08-24 1e1b8538m79(暂无匿称)

    不错的文章值得拥有哦

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=2051218, encodeId=9eb02051218a7, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Tue Feb 19 19:31:00 CST 2019, time=2019-02-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020464, encodeId=d4ac2020464a0, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Fri Dec 28 06:31:00 CST 2018, time=2018-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441906, encodeId=e2d614419067d, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Sun Aug 26 12:31:00 CST 2018, time=2018-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340619, encodeId=6e93340619a7, content=不错的文章值得拥有哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Fri Aug 24 23:21:38 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340606, encodeId=a52534060694, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, 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=Fri Aug 24 22:38:45 CST 2018, time=2018-08-24, status=1, ipAttribution=)]
    2018-08-24 天地飞扬

    了解一下,谢谢分享!

    0

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