J Endod:EDTA对小鼠牙乳头细胞粘附和分化的作用

2018-01-14 lishiting MedSci原创

次氯酸钠(NaOCl)对于细胞粘附到牙本质的干扰作用会阻碍牙髓组织的再生。这篇研究的目的是为了评估EDTA对有干性细胞粘附/分化的恢复作用,并探讨EDTA诱导的恢复作用机制,推测:暴露的牙本质基质的粘附以及随后integrin/phosphatidylinositol 3-kinase (PI3K)信号的激活可能起到重要作用。

次氯酸钠(NaOCl)对于细胞粘附到牙本质的干扰作用会阻碍牙髓组织的再生。这篇研究的目的是为了评估EDTA对有干性细胞粘附/分化的恢复作用,并探讨EDTA诱导的恢复作用机制,推测:暴露的牙本质基质的粘附以及随后integrin/phosphatidylinositol 3-kinase (PI3K)信号的激活可能起到重要作用。

研究将小鼠的牙乳头(MDP)培养于牛牙本质片上,使用NaOCl (0%, 1.5%或6%)冲洗后施加EDTA (0%, 3%或17%)。通过细胞密度、活性以及扫描和透射电子显微镜检查评估细胞的粘附。通过实时聚合酶链式反应检测施加pan-PI3K抑制剂(LY294002)与否的粘附MDP细胞的成牙本质/成骨基因表达变化。

结果显示,施加NaOCl (1.5%, 10 minutes)明显减少粘附MDP细胞的数量(P < .00001),但对NaOCl处理过的牙本质施加EDTA (3%和17%, ≥10 minutes)会显著增加粘附细胞的数量(P < .05)。超微结构观察施加了EDTA的牙本质显示,MDP细胞粘附于暴露的牙本质基质上。对培养于施加了EDTA牙本质片(1.5% NaOCl预处理与否的情况下)上的MDP细胞观察发现,碱性磷酸酶活性、牙本质基质蛋白和牙本质涎磷蛋白的信使RNA表达明显上调(P < .05)。另外,施加LY294002会显著下调碱性磷酸酶活性(P < .05)。

结论:在此项研究条件下,10分钟的EDTA处理足以恢复培养于1.5% NaOCl预处理牙本质片上的MDP细胞的粘附/分化作用。EDTA诱导的胶原纤维暴露以及随后的integrin/PI3K信号的激活至少部分上有助于细胞粘附和分化的恢复。

原始出处:

Hashimoto K, Kawashima N, et al. EDTA Treatment for Sodium Hypochlorite-treated Dentin Recovers Disturbed Attachment and Induces Differentiation of Mouse Dental Papilla Cells. J Endod. 2017 Dec 21. pii: S0099-2399(17)31196-2. doi: 10.1016/j.joen.2017.11.003.

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    2018-01-16 ycmayy
  2. [GetPortalCommentsPageByObjectIdResponse(id=1537057, encodeId=b092153e057f7, content=<a href='/topic/show?id=aaaf653e44' target=_blank style='color:#2F92EE;'>#EDTA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6537, encryptionId=aaaf653e44, topicName=EDTA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=328c12785299, createdName=ycmayy, createdTime=Tue Jan 16 01:23:00 CST 2018, time=2018-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278454, encodeId=94342e8454f7, content=henhao, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2VdicMnaLeK2Im5gKx4Ucxd8Bwu6S7RG0uILBFQx5HTW2bU4VricDYlQqN20ibASSMYAeGrZrrTpy2Q/0, createdBy=b10c1938054, createdName=1e0e5697m83(暂无匿称), createdTime=Sun Jan 14 13:29:43 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278413, encodeId=fd542e841317, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Sun Jan 14 11:01:10 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278397, encodeId=2d502e8397be, content=学习了.涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Sun Jan 14 10:43:11 CST 2018, time=2018-01-14, status=1, ipAttribution=)]
    2018-01-14 1e0e5697m83(暂无匿称)

    henhao

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1537057, encodeId=b092153e057f7, content=<a href='/topic/show?id=aaaf653e44' target=_blank style='color:#2F92EE;'>#EDTA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6537, encryptionId=aaaf653e44, topicName=EDTA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=328c12785299, createdName=ycmayy, createdTime=Tue Jan 16 01:23:00 CST 2018, time=2018-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278454, encodeId=94342e8454f7, content=henhao, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2VdicMnaLeK2Im5gKx4Ucxd8Bwu6S7RG0uILBFQx5HTW2bU4VricDYlQqN20ibASSMYAeGrZrrTpy2Q/0, createdBy=b10c1938054, createdName=1e0e5697m83(暂无匿称), createdTime=Sun Jan 14 13:29:43 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278413, encodeId=fd542e841317, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Sun Jan 14 11:01:10 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278397, encodeId=2d502e8397be, content=学习了.涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Sun Jan 14 10:43:11 CST 2018, time=2018-01-14, status=1, ipAttribution=)]
    2018-01-14 惠映实验室

    学习了.谢谢.

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1537057, encodeId=b092153e057f7, content=<a href='/topic/show?id=aaaf653e44' target=_blank style='color:#2F92EE;'>#EDTA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6537, encryptionId=aaaf653e44, topicName=EDTA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=328c12785299, createdName=ycmayy, createdTime=Tue Jan 16 01:23:00 CST 2018, time=2018-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278454, encodeId=94342e8454f7, content=henhao, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2VdicMnaLeK2Im5gKx4Ucxd8Bwu6S7RG0uILBFQx5HTW2bU4VricDYlQqN20ibASSMYAeGrZrrTpy2Q/0, createdBy=b10c1938054, createdName=1e0e5697m83(暂无匿称), createdTime=Sun Jan 14 13:29:43 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278413, encodeId=fd542e841317, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Sun Jan 14 11:01:10 CST 2018, time=2018-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=278397, encodeId=2d502e8397be, content=学习了.涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Sun Jan 14 10:43:11 CST 2018, time=2018-01-14, status=1, ipAttribution=)]
    2018-01-14 1ddf0692m34(暂无匿称)

    学习了.涨知识

    0