Blood:BCAS2对于斑马鱼胚胎的HSPC维持至关重要!

2018-11-28 MedSci MedSci原创

中心点:Bcas2是一种新型细胞因子,参与斑马鱼胚胎的HSPC维持。在HSPCs发育过程中,敲除Bcas2可触发Mdm4异常剪接,上调p53激活。摘要:造血干/祖细胞(HSPCs)来源于生血内皮,通过内皮向造血转变,具有自我更新的功能,并在整个生命周期中可不断补充各种血细胞。BCAS2(乳腺癌扩增序列2)是剪接体的组成成分,参与多种生物学过程。但其在造血作用中的作用尚不明确。研究人员通过转录激活样

中心点:

Bcas2是一种新型细胞因子,参与斑马鱼胚胎的HSPC维持。

在HSPCs发育过程中,敲除Bcas2可触发Mdm4异常剪接,上调p53激活。

摘要:

造血干/祖细胞(HSPCs)来源于生血内皮,通过内皮向造血转变,具有自我更新的功能,并在整个生命周期中可不断补充各种血细胞。BCAS2(乳腺癌扩增序列2)是剪接体的组成成分,参与多种生物学过程。但其在造血作用中的作用尚不明确。

研究人员通过转录激活样效应核酸酶(TALENs)建立bcas2敲除的斑马鱼模型。bcas2-/-斑马鱼在终端造血过程中表现出严重的HSPCs及其衍生物缺陷。研究人员还发现bcas2-/-斑马鱼的CHT中存在明显的HSPC凋亡信号,该现象可通过抑制p53而改善。此外,研究人员还发现敲除bcas2可诱导Mdm4异常剪接,导致细胞易发生p53介导的细胞凋亡,为HSPC缺陷提供一种机制解释。

总而言之,本研究表明BCAS2在斑马鱼HSPC维持中发挥重要作用。


原始出处:

Shanshan Yu,et al. BCAS2 is essential for hematopoietic stem and progenitor cell maintenance during zebrafish embryogenesis. Blood  2018  :blood-2018-09-876599;  doi: https://doi.org/10.1182/blood-2018-09-876599

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    2019-07-05 zhangj7108
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    2018-11-30 ailian1202
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    2018-11-30 lg.zhao
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    2018-11-30 tm10051986
  5. [GetPortalCommentsPageByObjectIdResponse(id=2025182, encodeId=869e202518258, content=<a href='/topic/show?id=12df32498e' target=_blank style='color:#2F92EE;'>#BCAS2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3249, encryptionId=12df32498e, topicName=BCAS2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7387164, createdName=zhangj7108, createdTime=Fri Jul 05 02:13:00 CST 2019, time=2019-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1315418, encodeId=ad04131541803, content=<a href='/topic/show?id=6fcc83e0554' target=_blank style='color:#2F92EE;'>#胚胎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83705, encryptionId=6fcc83e0554, topicName=胚胎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1420893, encodeId=40a01420893a5, content=<a href='/topic/show?id=f4e85e9565c' target=_blank style='color:#2F92EE;'>#斑马鱼#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57956, encryptionId=f4e85e9565c, topicName=斑马鱼)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84283623605, createdName=lg.zhao, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569883, encodeId=347e15698836d, content=<a href='/topic/show?id=3de99163a8' target=_blank style='color:#2F92EE;'>#HSPC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9163, encryptionId=3de99163a8, topicName=HSPC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=682315593196, createdName=tm10051986, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1624904, encodeId=8f33162490476, content=<a href='/topic/show?id=0333412062' target=_blank style='color:#2F92EE;'>#Cas#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4120, encryptionId=0333412062, topicName=Cas)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=411420689333, createdName=yaanren, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353891, encodeId=186c3538911f, content=Bcas2与斑马鱼胚胎的造血有关:Bcas2敲除后引起p53上调,p53使HSPC及其衍生物缺陷!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoQz0MG9Qt9zOSCPiaypgzP0xG6dd5mibKnajic3vFItYkQzotUB6Y6ic9aMzmNvbAPCopLaBGd0H7eBA/132, createdBy=6dba2422078, createdName=Cui DY, createdTime=Wed Nov 28 18:51:34 CST 2018, time=2018-11-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353872, encodeId=6e343538e22b, content=好文,值得点赞!认真学习,应用于实践!谢谢分享给广大同好!, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30251637888, createdName=lietome15, createdTime=Wed Nov 28 12:27:21 CST 2018, time=2018-11-28, status=1, ipAttribution=)]
    2018-11-30 yaanren
  6. [GetPortalCommentsPageByObjectIdResponse(id=2025182, encodeId=869e202518258, content=<a href='/topic/show?id=12df32498e' target=_blank style='color:#2F92EE;'>#BCAS2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3249, encryptionId=12df32498e, topicName=BCAS2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7387164, createdName=zhangj7108, createdTime=Fri Jul 05 02:13:00 CST 2019, time=2019-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1315418, encodeId=ad04131541803, content=<a href='/topic/show?id=6fcc83e0554' target=_blank style='color:#2F92EE;'>#胚胎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83705, encryptionId=6fcc83e0554, topicName=胚胎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1420893, encodeId=40a01420893a5, content=<a href='/topic/show?id=f4e85e9565c' target=_blank style='color:#2F92EE;'>#斑马鱼#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57956, encryptionId=f4e85e9565c, topicName=斑马鱼)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84283623605, createdName=lg.zhao, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569883, encodeId=347e15698836d, content=<a href='/topic/show?id=3de99163a8' target=_blank style='color:#2F92EE;'>#HSPC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9163, encryptionId=3de99163a8, topicName=HSPC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=682315593196, createdName=tm10051986, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1624904, encodeId=8f33162490476, content=<a href='/topic/show?id=0333412062' target=_blank style='color:#2F92EE;'>#Cas#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4120, encryptionId=0333412062, topicName=Cas)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=411420689333, createdName=yaanren, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353891, encodeId=186c3538911f, content=Bcas2与斑马鱼胚胎的造血有关:Bcas2敲除后引起p53上调,p53使HSPC及其衍生物缺陷!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoQz0MG9Qt9zOSCPiaypgzP0xG6dd5mibKnajic3vFItYkQzotUB6Y6ic9aMzmNvbAPCopLaBGd0H7eBA/132, createdBy=6dba2422078, createdName=Cui DY, createdTime=Wed Nov 28 18:51:34 CST 2018, time=2018-11-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353872, encodeId=6e343538e22b, content=好文,值得点赞!认真学习,应用于实践!谢谢分享给广大同好!, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30251637888, createdName=lietome15, createdTime=Wed Nov 28 12:27:21 CST 2018, time=2018-11-28, status=1, ipAttribution=)]
    2018-11-28 Cui DY

    Bcas2与斑马鱼胚胎的造血有关:Bcas2敲除后引起p53上调,p53使HSPC及其衍生物缺陷!

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=2025182, encodeId=869e202518258, content=<a href='/topic/show?id=12df32498e' target=_blank style='color:#2F92EE;'>#BCAS2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3249, encryptionId=12df32498e, topicName=BCAS2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7387164, createdName=zhangj7108, createdTime=Fri Jul 05 02:13:00 CST 2019, time=2019-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1315418, encodeId=ad04131541803, content=<a href='/topic/show?id=6fcc83e0554' target=_blank style='color:#2F92EE;'>#胚胎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83705, encryptionId=6fcc83e0554, topicName=胚胎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1420893, encodeId=40a01420893a5, content=<a href='/topic/show?id=f4e85e9565c' target=_blank style='color:#2F92EE;'>#斑马鱼#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57956, encryptionId=f4e85e9565c, topicName=斑马鱼)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84283623605, createdName=lg.zhao, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569883, encodeId=347e15698836d, content=<a href='/topic/show?id=3de99163a8' target=_blank style='color:#2F92EE;'>#HSPC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9163, encryptionId=3de99163a8, topicName=HSPC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=682315593196, createdName=tm10051986, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1624904, encodeId=8f33162490476, content=<a href='/topic/show?id=0333412062' target=_blank style='color:#2F92EE;'>#Cas#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4120, encryptionId=0333412062, topicName=Cas)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=411420689333, createdName=yaanren, createdTime=Fri Nov 30 01:13:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353891, encodeId=186c3538911f, content=Bcas2与斑马鱼胚胎的造血有关:Bcas2敲除后引起p53上调,p53使HSPC及其衍生物缺陷!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoQz0MG9Qt9zOSCPiaypgzP0xG6dd5mibKnajic3vFItYkQzotUB6Y6ic9aMzmNvbAPCopLaBGd0H7eBA/132, createdBy=6dba2422078, createdName=Cui DY, createdTime=Wed Nov 28 18:51:34 CST 2018, time=2018-11-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=353872, encodeId=6e343538e22b, content=好文,值得点赞!认真学习,应用于实践!谢谢分享给广大同好!, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30251637888, createdName=lietome15, createdTime=Wed Nov 28 12:27:21 CST 2018, time=2018-11-28, status=1, ipAttribution=)]
    2018-11-28 lietome15

    好文,值得点赞!认真学习,应用于实践!谢谢分享给广大同好!

    0

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