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SCI REP:肺癌DC细胞的STAT3以及NF-κB通路抑制

2017-03-29 MedSci MedSci原创

肺癌是世界范围内最常见的恶性肿瘤之一,超过80%为非小细胞肺癌。DC细胞对于继发免疫反应至关重要,在肿瘤发展过程中DC细胞的抗原识别呈递功能受限,肿瘤诱导DC细胞耐受被认为是肿瘤进展侵袭的关键因素,但是肿瘤细胞诱导DC细胞功能缺损的机制尚不清楚。

肺癌是世界范围内最常见的恶性肿瘤之一,超过80%为非小细胞肺癌。DC细胞对于继发免疫反应至关重要,在肿瘤发展过程中DC细胞的抗原识别呈递功能受限,肿瘤诱导DC细胞耐受被认为是肿瘤进展侵袭的关键因素,但是肿瘤细胞诱导DC细胞功能缺损的机制尚不清楚。

SCI REP近期发表了一篇文章研究了肺癌DC细胞功能受限的机制。在体外实验模型中,作者使用多个非小细胞肺癌患者的血清培养肿瘤诱导DC细胞。实验结果发现肿瘤诱导的单核细胞来源DC细胞存在系统性缺陷。转录组学分析主要功能基因的表达情况发现与正常细胞相比,肿瘤诱导DC细胞的MHCⅡ、细胞因子、趋化因子以及共刺激分子表达明显改变。进一步研究证实肿瘤血清中NF-κB通路和STAT3通路同时受到抑制,表明NF-κB通路和STAT3通路受限可能是肿瘤中DC细胞功能下降的主要原因。

对肿瘤诱导DC细胞分子机制的研究有助于理解DC细胞功能缺损导致的肿瘤免疫逃逸,使控制抑制信号传递以及增强对肿瘤的免疫监控成为可能。

原始出处:
Rui Li,Fang-Fang,et al.STAT3 and NK-κB are simultaneously Suppresses in Dendritic Cells in Lung Cancer.SCI REP.28 March 2017 doi:10.1038/srep45395

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    2017-03-31 李研东
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    2017-03-29 lecoo

    学习了

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1348956, encodeId=6713134895620, content=<a href='/topic/show?id=684f16e52c8' target=_blank style='color:#2F92EE;'>#STAT3#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16752, encryptionId=684f16e52c8, topicName=STAT3)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e7948, createdName=李研东, createdTime=Fri Mar 31 03:39:00 CST 2017, time=2017-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534043, encodeId=a15e153404383, content=<a href='/topic/show?id=6ea85e6117' target=_blank style='color:#2F92EE;'>#DC细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5761, encryptionId=6ea85e6117, topicName=DC细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=067412523287, createdName=zhangyxzsh, createdTime=Fri Mar 31 03:39:00 CST 2017, time=2017-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=183577, encodeId=da0e1835e7b7, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d1ab1619415, createdName=lecoo, createdTime=Wed Mar 29 19:33:51 CST 2017, time=2017-03-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=183564, encodeId=85811835640f, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuOWcPEsEP4FrvDcicue5V6rMkmXmY73KjYP59vQrEdjU89iaN4ZkOhsItlHkmGTjhV3b5S3zOQA4E0/0, createdBy=cc261682151, createdName=卡圣, createdTime=Wed Mar 29 19:28:48 CST 2017, time=2017-03-29, status=1, ipAttribution=)]
    2017-03-29 卡圣

    谢谢分享,学习了。

    0

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