Cell Death Differ:SIRT1与CRL4B协同调节胰腺癌干细胞特性并促进肿瘤发生

2021-06-28 xiaozeng MedSci原创

胰腺癌是一种常见的恶性肿瘤,患者的预后一般较差。

胰腺癌是一种常见的恶性肿瘤,患者的预后一般较差。最近的研究显示,在包括胰腺癌在内的多种实体瘤中发现了肿瘤干细胞(CSC)的存在。

Sirtuins是一类NAD+依赖的III类组蛋白脱乙酰酶,该酶具有赖氨酸脱乙酰化、ADP-核糖基化和/或脱酰作用活性,其能够参与多种细胞过程,并调控癌症的发生发展。既往研究显示,SIRT1(sirtuin 1)通过阻断衰老和细胞凋亡,促进细胞的生长和血管的生成,以在肿瘤发生发展和耐药性中发挥至关重要的作用。

尽管越来越多的证据表明,SIRT1在胰腺癌的发病机制中起着关键作用,但相关的机制仍有待确定,尤其是在胰腺癌干细胞(CSC)发育中的作用。


在该研究中,研究人员发现,SIRT1与CRL4B复合物相互作用,作为一个功能单元参与后者的单泛素化H2AK119(H2AK119ub1)。 通过对SIRT1/CUL4B靶标的全基因组分析确定了一组基因,包括GRHL3和FOXO3,这些基因与细胞分化、生长和迁移密切相关。

sirtuin对胰腺癌干细胞作用的系统分析

此外,研究人员发现SIRT1和CUL4B会共同促进胰腺癌细胞的增殖、自噬和侵袭。值得注意的是,SIRT1/CUL4B能够促进CSC干细胞特性,包括干性标记物表达的升高和肿瘤球的形成。


在体实验显示,SIRT1可促进已建立的移植瘤的生长,并增加NOD/SCID小鼠的肿瘤起源能力,并增加CSC的数量。重要的是,在包括胰腺癌在内的多种人类癌症中SIRT1和CUL4B的表达水平显著上调。

相关示意图

总而言之,该研究结果为组蛋白去乙酰化和泛素化之间的功能相互作用提供了一定的分子基础。同时揭示了SIRT1/CRL4B复合物与胰腺癌转移和干细胞特性的相关性,SIRT1或可作为癌症治疗的一个潜在的靶标。


原始出处:

Leng, S., Huang, W., Chen, Y. et al. SIRT1 coordinates with the CRL4B complex to regulate pancreatic cancer stem cells to promote tumorigenesis. Cell Death Differ (23 June 2021).

 

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    2022-02-01 维他命
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    2022-01-23 isabellayj
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    2021-07-01 独孤立克

    干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦

    0

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    2021-06-30 cy0328
  6. [GetPortalCommentsPageByObjectIdResponse(id=1872240, encodeId=5bad18e224067, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Mar 03 00:50:13 CST 2022, time=2022-03-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1962552, encodeId=2c3019625520b, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Feb 01 22:50:13 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1784273, encodeId=961f1e842731d, content=<a href='/topic/show?id=f01159527d' target=_blank style='color:#2F92EE;'>#Differ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5952, encryptionId=f01159527d, topicName=Differ)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d784426, createdName=isabellayj, createdTime=Sun Jan 23 08:50:13 CST 2022, time=2022-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025570, encodeId=d45e10255e09b, content=干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Thu Jul 01 22:50:13 CST 2021, time=2021-07-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531748, encodeId=9dd01531e48f2, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1544994, encodeId=b7da15449946e, content=<a href='/topic/show?id=7a0fe1289c2' target=_blank style='color:#2F92EE;'>#癌干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71289, encryptionId=7a0fe1289c2, topicName=癌干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=340013676140, createdName=1249898am19暂无昵称, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551933, encodeId=702d155193354, content=<a href='/topic/show?id=0cb91634355' target=_blank style='color:#2F92EE;'>#sirt1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16343, encryptionId=0cb91634355, topicName=sirt1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=977750, encodeId=83f49e775077, content=分享得很棒, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4f365534088, createdName=ms5000001909545950, createdTime=Mon Jun 28 22:59:30 CST 2021, time=2021-06-28, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1872240, encodeId=5bad18e224067, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Mar 03 00:50:13 CST 2022, time=2022-03-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1962552, encodeId=2c3019625520b, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Feb 01 22:50:13 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1784273, encodeId=961f1e842731d, content=<a href='/topic/show?id=f01159527d' target=_blank style='color:#2F92EE;'>#Differ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5952, encryptionId=f01159527d, topicName=Differ)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d784426, createdName=isabellayj, createdTime=Sun Jan 23 08:50:13 CST 2022, time=2022-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025570, encodeId=d45e10255e09b, content=干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Thu Jul 01 22:50:13 CST 2021, time=2021-07-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531748, encodeId=9dd01531e48f2, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1544994, encodeId=b7da15449946e, content=<a href='/topic/show?id=7a0fe1289c2' target=_blank style='color:#2F92EE;'>#癌干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71289, encryptionId=7a0fe1289c2, topicName=癌干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=340013676140, createdName=1249898am19暂无昵称, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551933, encodeId=702d155193354, content=<a href='/topic/show?id=0cb91634355' target=_blank style='color:#2F92EE;'>#sirt1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16343, encryptionId=0cb91634355, topicName=sirt1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=977750, encodeId=83f49e775077, content=分享得很棒, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4f365534088, createdName=ms5000001909545950, createdTime=Mon Jun 28 22:59:30 CST 2021, time=2021-06-28, status=1, ipAttribution=)]
    2021-06-30 quxin068
  8. [GetPortalCommentsPageByObjectIdResponse(id=1872240, encodeId=5bad18e224067, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Mar 03 00:50:13 CST 2022, time=2022-03-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1962552, encodeId=2c3019625520b, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Feb 01 22:50:13 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1784273, encodeId=961f1e842731d, content=<a href='/topic/show?id=f01159527d' target=_blank style='color:#2F92EE;'>#Differ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5952, encryptionId=f01159527d, topicName=Differ)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d784426, createdName=isabellayj, createdTime=Sun Jan 23 08:50:13 CST 2022, time=2022-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025570, encodeId=d45e10255e09b, content=干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Thu Jul 01 22:50:13 CST 2021, time=2021-07-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531748, encodeId=9dd01531e48f2, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1544994, encodeId=b7da15449946e, content=<a href='/topic/show?id=7a0fe1289c2' target=_blank style='color:#2F92EE;'>#癌干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71289, encryptionId=7a0fe1289c2, topicName=癌干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=340013676140, createdName=1249898am19暂无昵称, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551933, encodeId=702d155193354, content=<a href='/topic/show?id=0cb91634355' target=_blank style='color:#2F92EE;'>#sirt1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16343, encryptionId=0cb91634355, topicName=sirt1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Wed Jun 30 13:50:13 CST 2021, time=2021-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=977750, encodeId=83f49e775077, content=分享得很棒, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4f365534088, createdName=ms5000001909545950, createdTime=Mon Jun 28 22:59:30 CST 2021, time=2021-06-28, status=1, ipAttribution=)]
    2021-06-28 ms5000001909545950

    分享得很棒

    0

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