CLIN CANCER RES:PTHrP预测乳腺癌患者不良预后

2018-12-22 MedSci MedSci原创

甲状旁腺激素相关蛋白(PTHrP)是正常乳腺发育所必需的。PTHLH基因多态性与乳腺癌风险有关,并且PTHrP促进溶骨性乳腺癌的骨转移生长。因此,目前认为PTHrP在恶性原发性乳腺肿瘤中上调,但缺少这种假设的确凿证据。CLIN CANCER RES近期发表了一篇文章研究这一问题。

甲状旁腺激素相关蛋白(PTHrP)是正常乳腺发育所必需的。PTHLH基因多态性与乳腺癌风险有关,并且PTHrP促进溶骨性乳腺癌的骨转移生长。因此,目前认为PTHrP在恶性原发性乳腺肿瘤中上调,但缺少这种假设的确凿证据。CLIN CANCER RES近期发表了一篇文章研究这一问题。

作者使用定量IHC检测正常和恶性乳腺上皮细胞中的PTHrP,并将原发性乳腺癌中的PTHrP水平与临床结果相关联。研究结果表明,与正常乳腺上皮细胞相比,恶性肿瘤中PTHrP水平显着下降。此外,癌细胞中低水平的核定位PTHrP与在乳腺癌不良临床结局相关。在对标准临床病理学参数进行多变量调整后,737名患者肿瘤中的PTHrP mRNA水平进一步证实了这种关联性。乳腺癌PTHrP水平与转录因子Stat5a / b强相关,转录因子Stat5a / b是良好预后的标志物以及催乳素信号传导的关键介质。催乳素可以刺激乳腺癌细胞系中的 PTHrP转录和蛋白质表达,Stat5通过P2基因启动子介导的作用,产生编码PTHrP 1-173的转录物AT6。低水平的AT6与不良的临床结局相关。

文章最后认为,该研究推翻了PTHrP在原发性乳腺癌中上调的普遍观点,并确定了侵袭性肿瘤中的催乳素-Stat5-PTHrP轴。

原始出处:

Thai H. Tran, Fransiscus E. Utama, et al. Loss of Nuclear Localized Parathyroid Hormone-Related Protein in Primary Breast Cancer Predicts Poor Clinical Outcome and Correlates with Suppressed Stat5 Signaling. CLIN CANCER RES. December 2018 doi: 10.1158/1078-0432.CCR-17-3280

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    2019-02-11 lujian
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    2018-12-24 jyzxjiangqin

    预测乳腺癌患者的不良反应。

    0

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    2018-12-23 随梦飞扬

    PTHLH基因多态性与乳腺癌风险有关,并且PTHrP促进溶骨性乳腺癌的骨转移生长。

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2024125, encodeId=5f73202412524, content=<a href='/topic/show?id=2d551484e95' target=_blank style='color:#2F92EE;'>#PTH#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14847, encryptionId=2d551484e95, topicName=PTH)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Mon Feb 11 01:31:00 CST 2019, time=2019-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356302, encodeId=92ce3563020f, content=预测乳腺癌患者的不良反应。, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160806/IMG57A5698BDB0244113.jpg, createdBy=32a91358059, createdName=jyzxjiangqin, createdTime=Mon Dec 24 20:31:07 CST 2018, time=2018-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1336378, encodeId=2a5313363e89b, content=<a href='/topic/show?id=071820530c5' target=_blank style='color:#2F92EE;'>#不良预后#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=20530, encryptionId=071820530c5, topicName=不良预后)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c97a2500111, createdName=thinkibmz_44722594, createdTime=Mon Dec 24 07:31:00 CST 2018, time=2018-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1571147, encodeId=f2bd15e11473b, content=<a href='/topic/show?id=f42823e48d7' target=_blank style='color:#2F92EE;'>#乳腺癌患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23748, encryptionId=f42823e48d7, topicName=乳腺癌患者)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37bc15724202, createdName=hanhaisha2013, createdTime=Mon Dec 24 07:31:00 CST 2018, time=2018-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356214, encodeId=48b535621405, content=PTHLH基因多态性与乳腺癌风险有关,并且PTHrP促进溶骨性乳腺癌的骨转移生长。, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Sun Dec 23 18:49:55 CST 2018, time=2018-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356213, encodeId=5f58356213b2, content=甲状旁腺激素相关蛋白(PTHrP)是正常乳腺发育所必需的, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Sun Dec 23 18:49:32 CST 2018, time=2018-12-23, status=1, ipAttribution=)]
    2018-12-23 随梦飞扬

    甲状旁腺激素相关蛋白(PTHrP)是正常乳腺发育所必需的

    0

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