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GUT:HBV感染的新进展

2017-09-16 MedSci MedSci原创

HBV的感染是一项全世界的健康问题,但HBV导致的慢性持续感染的免疫机制仍然知之甚少。目前的研究已经认识到,在单核细胞和自然杀伤(NK)细胞中具有一些抑制特征的细胞亚群。近期,一项发表在杂志Gut上的研究评估了HBV对单核细胞和NK细胞的影响。此项研究使用流式细胞术纯化了来自慢性HBV感染患者和健康对照者的单核细胞和NK细胞,通过定量实时(qRT)-PCR,ELISA和蛋白质印迹法鉴定表型、基因表

HBV的感染是一项全世界的健康问题,但HBV导致的慢性持续感染免疫机制仍然知之甚少。目前的研究已经认识到,在单核细胞和自然杀伤(NK)细胞中具有一些抑制特征的细胞亚群。近期,一项发表在杂志Gut上的研究评估了HBV对单核细胞和NK细胞的影响。

此项研究使用流式细胞术纯化了来自慢性HBV感染患者和健康对照者的单核细胞和NK细胞,通过定量实时(qRT)-PCR,ELISA和蛋白质印迹法鉴定表型、基因表达和细胞因子的分泌。将单核细胞和NK细胞分别培养以及共培养,并通过细胞内细胞因子染色来确定NK细胞的活化。

此项研究结果显示:与健康人相比,在慢性HBV感染患者中,单核细胞表达较高水平的PD-L1,HLA-E,白介素(IL)-10和TGF-β,NK细胞表达较高水平的PD-1,CD94和IL-10 。 HBV使用乙型肝炎表明抗原(HBsAg)通MyD88 /NFκB信号通路诱导HLA-E,PD-L1,IL-10和TGF-β的表达抑制单核细胞。 HBV处理的单核细胞通过PD-L1和HLA-E信号诱导NK细胞产生IL-10。这种NK细胞可以抑制自体T细胞活化。

此项研究结果展示了免疫抑制级联,其中HBV产生抑制性单核细胞,其可以启动调节性NK细胞分化,导致T细胞抑制。

原始出处:
Li H, Zhai N, et al. Regulatory NK cells mediated between immunosuppressive monocytes and dysfunctional T cells in chronic HBV infection. Gut. 2017 Sep 12. pii: gutjnl-2017-314098. doi: 10.1136/gutjnl-2017-314098.

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    2018-04-27 klivis
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    2017-09-22 天涯183

    非常好的文章.学习了

    0

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    2017-09-16 清风拂面

    谢谢分享学习受益匪浅

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1836634, encodeId=f61f183663454, content=<a href='/topic/show?id=f9d08524be' target=_blank style='color:#2F92EE;'>#HBV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8524, encryptionId=f9d08524be, topicName=HBV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87531, createdName=klivis, createdTime=Fri Apr 27 19:47:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246454, encodeId=0f8224645486, content=非常好的文章.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Sep 22 04:58:15 CST 2017, time=2017-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462189, encodeId=e05b1462189c1, content=<a href='/topic/show?id=b97885350d' target=_blank style='color:#2F92EE;'>#HBV感染#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8535, encryptionId=b97885350d, topicName=HBV感染)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=33ed6479538, createdName=Tommy1951, createdTime=Mon Sep 18 01:47:00 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244647, encodeId=375724464e84, content=谢谢分享学习受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Sat Sep 16 13:52:43 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244623, encodeId=b2cb24462392, content=一起来讨论吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/07/03/04d9b9f3fcb2c24e0534b0a7de83c72e.jpg, createdBy=75672052751, createdName=月吟凤歌, createdTime=Sat Sep 16 11:18:44 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244621, encodeId=cd5b244621af, content=陈vv股海护航哈哈哈, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b0171930782, createdName=为你把脉, createdTime=Sat Sep 16 10:56:20 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244619, encodeId=836a24461926, content=学习了.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQplCaQGBmjHytXQqvsuocO2uV2lOAaJibzDafJudKToVfU12LzwArHDb4TSrmU2hk5Qxzc6icoicBK3Dg/0, createdBy=a7901968505, createdName=明心见性, createdTime=Sat Sep 16 10:53:45 CST 2017, time=2017-09-16, status=1, ipAttribution=)]
    2017-09-16 月吟凤歌

    一起来讨论吧

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1836634, encodeId=f61f183663454, content=<a href='/topic/show?id=f9d08524be' target=_blank style='color:#2F92EE;'>#HBV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8524, encryptionId=f9d08524be, topicName=HBV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87531, createdName=klivis, createdTime=Fri Apr 27 19:47:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246454, encodeId=0f8224645486, content=非常好的文章.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Sep 22 04:58:15 CST 2017, time=2017-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462189, encodeId=e05b1462189c1, content=<a href='/topic/show?id=b97885350d' target=_blank style='color:#2F92EE;'>#HBV感染#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8535, encryptionId=b97885350d, topicName=HBV感染)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=33ed6479538, createdName=Tommy1951, createdTime=Mon Sep 18 01:47:00 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244647, encodeId=375724464e84, content=谢谢分享学习受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Sat Sep 16 13:52:43 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244623, encodeId=b2cb24462392, content=一起来讨论吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/07/03/04d9b9f3fcb2c24e0534b0a7de83c72e.jpg, createdBy=75672052751, createdName=月吟凤歌, createdTime=Sat Sep 16 11:18:44 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244621, encodeId=cd5b244621af, content=陈vv股海护航哈哈哈, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b0171930782, createdName=为你把脉, createdTime=Sat Sep 16 10:56:20 CST 2017, time=2017-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244619, encodeId=836a24461926, content=学习了.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQplCaQGBmjHytXQqvsuocO2uV2lOAaJibzDafJudKToVfU12LzwArHDb4TSrmU2hk5Qxzc6icoicBK3Dg/0, createdBy=a7901968505, createdName=明心见性, createdTime=Sat Sep 16 10:53:45 CST 2017, time=2017-09-16, status=1, ipAttribution=)]
    2017-09-16 为你把脉

    陈vv股海护航哈哈哈

    0

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    2017-09-16 明心见性

    学习了.谢谢分享

    0

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