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CLIN CANCER RES:抗HIF-1α免疫抑制基底样乳腺癌生长且在体内具有靶向乳腺干细胞作用

2017-07-10 MedSci MedSci原创

三阴性乳腺癌(TNBC)是一种含有大量肿瘤干细胞的乳腺癌亚型。缺氧诱导因子-1α(HIF-1α)会诱导与干细胞有关的表达,在三阴性乳腺癌中表达上调。CIN CANCER RES近期报道了一篇文章,研究HIF-1α是否具有免疫原性以及在转基因鼠中靶向HIF-1α的疫苗是否可以影响基底样乳腺癌的生长。

三阴性乳腺癌(TNBC)是一种含有大量肿瘤干细胞的乳腺癌亚型。缺氧诱导因子-1α(HIF-1α)会诱导与干细胞有关的表达,在三阴性乳腺癌中表达上调。CIN CANCER RES近期报道了一篇文章,研究HIF-1α是否具有免疫原性以及在转基因鼠中靶向HIF-1α的疫苗是否可以影响基底样乳腺癌的生长。

作者分析了乳腺癌患者与健康人血清中HIF-1α特异性IgG水平。使用HIF-1αTh1诱导的肽类进行Tg-MMTVneu 以及C3(1)Tag鼠进行免疫处理。通过磁珠分离干细胞。利用Western blotting 以及流式细胞术检测肿瘤中HIF-1α以及肿瘤干细胞水平。研究结果表明三阴性乳腺癌患者的HIF-1α特异性IgG重量以及数量均高于对照组。乳腺癌患者及健康捐献者均存在HIF-1α特异性Th1和Th2免疫。接受HIF-1α疫苗处理后,仅在C3(1)Tag鼠(basal-like/stem cellhigh)中出现显着的乳腺肿瘤生长抑制,在TgMMTV-neu鼠(luminal/neu/stem celllow)中未出现这种抑制作用。与对照组相比,疫苗可以增加肿瘤中Ⅰ型T细胞,降低干细胞标志物Sca-1的表达.

文章最后认为,HIF-1α疫苗在限制三阴性乳腺癌生长中可能有独特的作用。通过激活周围环境的免疫抑制乳腺癌干细胞生长可能会影响肿瘤复发。

原始出处:
Denise L.Cecil,Meredith Slota,et al.Immunization against HIF-1α Inhibits the Growth of Basal Mammary Tumors and Targets Mammary Stem Cells In Vivo.CLIN CANCER RES.July 2017 doi:10.1158/1078-0432.CCR-16-1678

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    2017-07-12 changfy
  2. [GetPortalCommentsPageByObjectIdResponse(id=1522145, encodeId=88f01522145a0, content=<a href='/topic/show?id=1b34881e59' target=_blank style='color:#2F92EE;'>#HIF-1α#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8817, encryptionId=1b34881e59, topicName=HIF-1α)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=847f11414102, createdName=changfy, createdTime=Wed Jul 12 12:25:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1556024, encodeId=3cb4155602442, content=<a href='/topic/show?id=b3e98813c3' target=_blank style='color:#2F92EE;'>#HIF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8813, encryptionId=b3e98813c3, topicName=HIF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=293014689254, createdName=wrj0126, createdTime=Wed Jul 12 12:25:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=220983, encodeId=e75c220983f7, content=好好文章学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Tue Jul 11 08:56:52 CST 2017, time=2017-07-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=220947, encodeId=eb1922094e32, content=学习了分享了学, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Tue Jul 11 08:29:09 CST 2017, time=2017-07-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=220928, encodeId=2342220928b0, content=学习了受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5Kzuf9u71gZhPYMiajRtENwicoAABeQtfXOlic8ibhYSy6DvJZWUDVtjRvTfqBffr1XJ6JLtFB5kHicthl/0, createdBy=08bb2061153, createdName=189****7206, createdTime=Tue Jul 11 07:53:30 CST 2017, time=2017-07-11, status=1, ipAttribution=)]
    2017-07-12 wrj0126
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    2017-07-11 139****5926

    好好文章学习了

    0

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    2017-07-11 dhzzm

    学习了分享了学

    0

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    2017-07-11 189****7206

    学习了受益匪浅

    0

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