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Oncogene:低剂量的地西他滨能够改善官腔膀胱癌的化疗效果

2019-04-13 AlexYang MedSci原创

低剂量的DNA甲基化抑制剂地西他滨在某些类型癌症的治疗中已经有所应用。然而,其抗肿瘤的效果和机制依据癌症类型的不同而不同,并且其抗肿瘤活性在膀胱癌的治疗中还未进行过系统的研究。最近,有研究人员利用小鼠模型、培养的细胞系和患者来源的异种种植模型来阐释低剂量的地西他滨治疗能够明显的增强顺铂和吉西他滨在体内和体外对官腔膀胱癌的治疗效果。遗传谱系追踪结果阐释了膀胱癌干细胞群的干细胞特性在小鼠中被地西他滨抑

低剂量的DNA甲基化抑制剂地西他滨在某些类型癌症的治疗中已经有所应用。然而,其抗肿瘤的效果和机制依据癌症类型的不同而不同,并且其抗肿瘤活性在膀胱癌的治疗中还未进行过系统的研究。

最近,有研究人员利用小鼠模型、培养的细胞系和患者来源的异种种植模型来阐释低剂量的地西他滨治疗能够明显的增强顺铂和吉西他滨在体内和体外对官腔膀胱癌的治疗效果。遗传谱系追踪结果阐释了膀胱癌干细胞群的干细胞特性在小鼠中被地西他滨抑制。上述的这些作用均是通过基因组范围内的DNA甲基化减少、基因再表达和关键细胞调控途径中的变化(比如STAT3信号)来实现的。

最后,研究人员指出,这些结果表明了DNA甲基化药物是官腔膀胱癌治疗的很有希望的治疗方法。

原始出处:


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    2021-08-22 病毒猎手

    低剂量的#地西他滨#能够改善官腔#膀胱癌#的治疗,其主要作用应该是#免疫微环境#调节作用,未来地西他滨有可能成为一代神药

    0

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    2019-07-02 cy0324
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    2019-04-15 zsyan
  5. [GetPortalCommentsPageByObjectIdResponse(id=1010347, encodeId=8c2d101034e0b, content=低剂量的<a href='/topic/show?id=2d4c4140296' target=_blank style='color:#2F92EE;'>#地西他滨#</a>能够改善官腔<a href='/topic/show?id=843a85e9421' target=_blank style='color:#2F92EE;'>#膀胱癌#</a>的治疗,其主要作用应该是<a href='/topic/show?id=029e2901e8e' target=_blank style='color:#2F92EE;'>#免疫微环境#</a>调节作用,未来地西他滨有可能成为一代神药, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41402, encryptionId=2d4c4140296, topicName=地西他滨), TopicDto(id=85794, encryptionId=843a85e9421, topicName=膀胱癌), TopicDto(id=29017, encryptionId=029e2901e8e, topicName=免疫微环境)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Sun Aug 22 17:39:44 CST 2021, time=2021-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049171, encodeId=6c3820491e137, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Tue Jul 02 11:35:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480542, encodeId=9707148054255, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Mon Apr 15 03:35:00 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558151, encodeId=480d1558151d1, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=154614942533, createdName=zsyan, createdTime=Mon Apr 15 03:35:00 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1032122, encodeId=853c103212272, 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=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Sat Apr 13 15:35:00 CST 2019, time=2019-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1039918, encodeId=27c51039918de, content=膀胱癌真怪,明明是免疫敏感性肿瘤,为什么PD-1治疗效果不好呢?难道靶点不对?将来CD47会不会有效, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=留走人康, createdTime=Sat Apr 13 15:35:00 CST 2019, time=2019-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046795, encodeId=95521046e95b3, 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=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Sat Apr 13 15:35:00 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

  6. [GetPortalCommentsPageByObjectIdResponse(id=1010347, encodeId=8c2d101034e0b, content=低剂量的<a href='/topic/show?id=2d4c4140296' target=_blank style='color:#2F92EE;'>#地西他滨#</a>能够改善官腔<a href='/topic/show?id=843a85e9421' target=_blank style='color:#2F92EE;'>#膀胱癌#</a>的治疗,其主要作用应该是<a href='/topic/show?id=029e2901e8e' target=_blank style='color:#2F92EE;'>#免疫微环境#</a>调节作用,未来地西他滨有可能成为一代神药, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41402, encryptionId=2d4c4140296, topicName=地西他滨), TopicDto(id=85794, encryptionId=843a85e9421, topicName=膀胱癌), TopicDto(id=29017, encryptionId=029e2901e8e, topicName=免疫微环境)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Sun Aug 22 17:39:44 CST 2021, time=2021-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049171, encodeId=6c3820491e137, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Tue Jul 02 11:35:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480542, encodeId=9707148054255, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Mon Apr 15 03:35:00 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558151, encodeId=480d1558151d1, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=154614942533, createdName=zsyan, createdTime=Mon Apr 15 03:35:00 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1032122, encodeId=853c103212272, 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=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Sat Apr 13 15:35:00 CST 2019, time=2019-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1039918, encodeId=27c51039918de, content=膀胱癌真怪,明明是免疫敏感性肿瘤,为什么PD-1治疗效果不好呢?难道靶点不对?将来CD47会不会有效, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=留走人康, createdTime=Sat Apr 13 15:35:00 CST 2019, time=2019-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046795, encodeId=95521046e95b3, 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=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Sat Apr 13 15:35:00 CST 2019, time=2019-04-13, status=1, ipAttribution=)]
    2019-04-13 留走人康

    膀胱癌真怪,明明是免疫敏感性肿瘤,为什么PD-1治疗效果不好呢?难道靶点不对?将来CD47会不会有效

    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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越来越多的证据表明循环RNAs(circRNAs)可以作为microRNA海绵来调控人类癌症恶化过程中基因的表达。然而,circRNAs和作用和功能性miRNA海绵在膀胱癌(BC)中的作用仍旧未知。最近,有研究人员应用了生物信息学的方法并假设miR-146b可能以CARMA3 mRNA的3'非编码区为靶标且circINTS4可能在BC肿瘤形成过程中可作为miR-146b海绵。研究发现,与临近组织比

Oncogene:动态m6A mRNA甲基化阐释了METTL3-m6A-CDCP1信号轴在化学致癌中的作用

N6甲基腺苷(m6A)是哺乳动物mRNAs中最丰富的内在修饰。尽管在各种各样的生理过程中具有重要的功能,m6A在化学致癌中的作用仍旧未知。最近,有研究人员分析了化学致癌剂诱导细胞性状转化过程中动态m6A mRNA修饰过程情况,并鉴定了细胞转化相关的受调控的m6A位点。明显的是,研究人员在恶性转化细胞CDCP1致癌基因的mRNA 3′-UTR区域发现m6A增加。m6A甲基转移酶METTL3和脱甲基酶

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