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GUT:与克罗恩病中抗TNF治疗效果相关的细胞分子特征

2019-04-13 不详 MedSci原创

抗肿瘤坏死因子(TNF)抗体治疗目前成功用于治疗克罗恩病。然而,大约仍有40%的患者出现抗TNF治疗失败。因此,本项研究旨在探究对抗TNF治疗的抗性相关的分子机制。

背景及目的:
抗肿瘤坏死因子(TNF)抗体治疗目前成功用于治疗克罗恩病。然而,大约仍有40%的患者出现抗TNF治疗失败。因此,本项研究旨在探究对抗TNF治疗的抗性相关的分子机制。

方法:
研究人员在抗TNF治疗之前和期间,从患有克罗恩病的患者中分离粘膜和血细胞。通过微阵列,免疫组织化学,qPCR,ELISA,全器官培养和FACS评估细胞因子谱,细胞表面标志物,信号蛋白和细胞凋亡。

结果:
研究结果显示在抗TNF治疗之前,抗TNF治疗的应答者显示出T细胞上TNF受体2(TNFR2)而非IL23R的表达显着高于抗TNF治疗之前的无应答者。在抗TNF治疗期间,抗TNF无反应者中粘膜IL-23p19,IL23R和IL-17A显着上调,但在反应者中没有。与反应者相比,抗TNF无反应者中凋亡抗性TNFR2 + IL23R + T细胞显着增加,表达肠道向性整合素α4β7,并且与TNFR2相比表现出IFN-γ,T-bet,IL-17A和RORγt表达增加。肠道TNFR2 + IL23R + T细胞被来自CD14 +巨噬细胞的IL-23激活,其在抗TNF治疗之前显着更多地存在于非应答者中。研究表明,IL-23可以消除粘膜T细胞中抗TNF诱导的细胞凋亡。

结论:
抗凋亡的肠道TNFR2 + IL23R + T细胞的扩增与克罗恩病中抗TNF治疗的抗性相关。这些发现将使IL-23鉴定成为抗TNF治疗克罗恩病患者的合适分子靶点。

原始出处:

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    2019-05-31 mfx808
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    2019-04-15 snowpeakxu
  7. [GetPortalCommentsPageByObjectIdResponse(id=1804963, encodeId=57a018049639b, content=<a href='/topic/show?id=f4d1e781097' target=_blank style='color:#2F92EE;'>#细胞分子#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77810, encryptionId=f4d1e781097, topicName=细胞分子)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9fe6351, createdName=flyingeagle77, createdTime=Mon Mar 23 19:16:00 CST 2020, time=2020-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1894107, encodeId=63e7189410e49, content=<a href='/topic/show?id=5e456463eee' target=_blank style='color:#2F92EE;'>#治疗效果#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64637, encryptionId=5e456463eee, topicName=治疗效果)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=373a131, createdName=jxrzshh, createdTime=Sat Sep 28 17:16:00 CST 2019, time=2019-09-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1771440, encodeId=9adf1e71440bf, content=<a href='/topic/show?id=655b31640c7' target=_blank style='color:#2F92EE;'>#分子特征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31640, encryptionId=655b31640c7, topicName=分子特征)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=197038292186, createdName=zlawrance, createdTime=Mon Jan 27 06:16:00 CST 2020, time=2020-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070144, encodeId=712b20e01445d, content=<a href='/topic/show?id=49d25514317' target=_blank style='color:#2F92EE;'>#抗TNF治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55143, encryptionId=49d25514317, topicName=抗TNF治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b05b180, createdName=grace5700, createdTime=Wed Sep 11 08:16:00 CST 2019, time=2019-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1670776, encodeId=678c16e07765d, content=<a href='/topic/show?id=abd35513ed5' target=_blank style='color:#2F92EE;'>#抗TNF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55137, encryptionId=abd35513ed5, topicName=抗TNF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7dc326754916, createdName=mfx808, createdTime=Fri May 31 09:16:00 CST 2019, time=2019-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401723, encodeId=e0d61401e239f, content=<a href='/topic/show?id=17e21e57943' target=_blank style='color:#2F92EE;'>#TNF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17579, encryptionId=17e21e57943, topicName=TNF)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqjVbfRD4f4vibEcZVcvato8Qib1gGtZJiayXCMFgHrkeErSiaxdYMiabKGxY2an9muxWCkUJbjFPViaC6A/132, createdBy=e4fb2361580, createdName=snowpeakxu, createdTime=Mon Apr 15 08:16:00 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1032124, encodeId=cc531032124e1, content=谢谢梅斯提供这么好的信息,学到很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Sat Apr 13 20:16:00 CST 2019, time=2019-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046796, encodeId=531e1046e9626, content=疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Sat Apr 13 20:16:00 CST 2019, time=2019-04-13, status=1, ipAttribution=)]
    2019-04-13 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

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    2019-04-13 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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