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Br J Cancer:CDX2调节Snail的表达和β-catenin的稳定性抑制结直肠癌的侵袭和转移

2020-12-08 xiaozeng MedSci原创

结直肠癌(CRC)作为癌症相关死亡的第二大最常见原因,在全球范围内,每年约有1,800,000例新病例被确诊为CRC。尽管在CRC的早期检测和综合治疗方面已经取得了巨大的进展,但目前大多数晚期CRC患

结直肠癌(CRC)作为癌症相关死亡的第二大最常见原因,在全球范围内,每年约有1,800,000例新病例被确诊为CRC。尽管在CRC的早期检测和综合治疗方面已经取得了巨大的进展,但目前大多数晚期CRC患者的预后仍较差。

癌症的远端转移和复发仍是CRC患者死亡的主要原因。越来越多的新兴研究证实,多种基因和细胞通路参与了CRC的肿瘤发生发展和转移。因此,阐明潜在的分子机制或可为CRC患者提供有效的改善预后的治疗策略。


既往研究显示,CDX2参与了各种癌症的发生发展,并在癌症的侵袭和转移中起着至关重要的作用,但CDX2在CRC上皮-间质转化(EMT)进程中的作用目前还知之甚少。

机制示意图

该研究旨在通过免疫组织化学分析和一系列内外源实验,揭示CDX2在CRC侵袭和转移中的作用。


研究人员发现,CRC组织中CDX2的表达水平下调,而CDX2的减少对应着患者的不良预后。敲低CDX2能够促进结肠癌细胞的侵袭作用,并通过诱导EMT进程促进癌症的肝转移。

CDX2在CRC组织和正常组织中的表达

进一步的研究显示,CDX2通过抑制Akt和GSK-3β的磷酸化,降低Snail的表达、β-catenin的稳定和核转运。敲除β-catenin能够中和敲低CDX2对Slug和ZEB1的调节作用。机制研究显示,CDX2通过调节PTEN的表达以拮抗CRC中的PI3K/Akt活性,CDX2能够直接与PTEN的启动子结合并激活其表达。


综上,该研究首次发现CDX2可通过调节Snail的表达以及通过反式激活PTEN的表达来调节β-catenin的稳定性,最终抑制EMT进程和CRC的转移。


原始出处:

Yu, J., Li, S., Xu, Z. et al. CDX2 inhibits epithelial–mesenchymal transition in colorectal cancer by modulation of Snail expression and β-catenin stabilisation via transactivation of PTEN expression. Br J Cancer (26 November 2020).

 

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    2021-06-03 wodejia-dayu
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    2021-11-20 lilianxiang
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    2021-03-22 马新雨

    CDX2可以抑制CRC的侵袭和转移

    0

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  6. [GetPortalCommentsPageByObjectIdResponse(id=1652646, encodeId=1de11652646b8, content=<a href='/topic/show?id=5982442e0f' target=_blank style='color:#2F92EE;'>#CDX2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4427, encryptionId=5982442e0f, topicName=CDX2)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e0324309469, createdName=wodejia-dayu, createdTime=Thu Jun 03 19:23:46 CST 2021, time=2021-06-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794202, encodeId=b9431e94202dc, content=<a href='/topic/show?id=9e0a164e4e4' target=_blank style='color:#2F92EE;'>#Snail#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16474, encryptionId=9e0a164e4e4, topicName=Snail)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=512a199, createdName=lilianxiang, createdTime=Sat Nov 20 09:23:46 CST 2021, time=2021-11-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1900544, encodeId=02931900544c4, content=<a href='/topic/show?id=0983e529745' target=_blank style='color:#2F92EE;'>#稳定性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75297, encryptionId=0983e529745, topicName=稳定性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e0a1165, createdName=jiangfeng5067, createdTime=Tue Jul 13 15:23:46 CST 2021, time=2021-07-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=950155, encodeId=b93f95015575, content=CDX2可以抑制CRC的侵袭和转移, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0cc45439561, createdName=马新雨, createdTime=Mon Mar 22 19:23:19 CST 2021, time=2021-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1453446, encodeId=efcb145344652, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Thu Dec 10 02:23:46 CST 2020, time=2020-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=906002, encodeId=2d86906002ef, content=通过免疫组织化学分析和一系列内外源实验,揭示CDX2在CRC侵袭和转移中的作用。, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201120/5008534db22c474a844fbd107ff83af2/d3e20fc133b542208ff15e7f2b575329.jpg, createdBy=c7015311102, createdName=Jessie Zhang, createdTime=Tue Dec 08 14:47:00 CST 2020, time=2020-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=905959, encodeId=b485905959d0, content=该研究首次发现CDX2可通过调节Snail的表达以及通过反式激活PTEN的表达来调节β-catenin的稳定性,最终抑制EMT进程和CRC的转移。, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=50ee5442489, createdName=ms3000000503031915, createdTime=Tue Dec 08 11:40:43 CST 2020, time=2020-12-08, status=1, ipAttribution=)]
    2020-12-08 Jessie Zhang

    通过免疫组织化学分析和一系列内外源实验,揭示CDX2在CRC侵袭和转移中的作用。

    0

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    2020-12-08 ms3000000503031915

    该研究首次发现CDX2可通过调节Snail的表达以及通过反式激活PTEN的表达来调节β-catenin的稳定性,最终抑制EMT进程和CRC的转移。

    0

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