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Blood:IGF-1通过激活Akt促进血小板生成

2018-05-27 MedSci MedSci原创

中心点:IGF-1可促进MK分化、形成血小板前体以及血小板释放。IGF-1对血栓形成的影响主要受SRC-3协助AKT激活所介导。摘要:众所周知,胰岛素样生长因子-1(IGF-1)还可作为造血生长因子,但其对血栓形成的直接作用尚不清楚。近日,Blood杂志上发表一篇文章,Shilei Chen等人发现IGF-1可促进CD34+细胞分化成巨核细胞(MKs),并能促进体外培养的MKs细胞形成血小板前体(

中心点:

IGF-1可促进MK分化、形成血小板前体以及血小板释放。

IGF-1对血栓形成的影响主要受SRC-3协助AKT激活所介导。

摘要:

众所周知,胰岛素样生长因子-1(IGF-1)还可作为造血生长因子,但其对血栓形成的直接作用尚不清楚。近日,Blood杂志上发表一篇文章,Shilei Chen等人发现IGF-1可促进CD34+细胞分化成巨核细胞(MKs),并能促进体外培养的MKs细胞形成血小板前体(PPF)和血小板。研究人员同时用体内研究证实给放射(6.0Gy)处理过的和致命性放射(10.0Gy)后进行骨髓移植(BMT)的小鼠注射IGF-1可促进其血小板恢复。

深入研究发现ERK1/2和Akt激活介导IGF-1对血小板形成的作用。而且,与用促血小板生成素(TPO)处理所诱导的效应相比,IGF-1所诱导Akt激活明显高于ERK1/2激活。此外,IGF-1治疗还可显著增加TPO受体纯合突变小鼠的血小板计数,因此研究人员推测IGF-1对血小板形成的效应不依赖于TPO信号,进一步研究显示IGF-1触发的Akt激活需要类固醇受体共激活剂-3(SRC-3)辅助。

总而言之,本研究数据揭示了IGF-1调控血小板生成的独特作用,为了解血小板生成的TPO非依赖性调控机制提供新的见解。

原始出处:

Shilei Chen,et al. IGF-1 facilitates thrombopoiesis primarily through Akt activation. Blood  2018  :blood-2018-01-825927;  doi: https://doi.org/10.1182/blood-2018-01-825927

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    2019-02-08 xxxx1049
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    2018-07-27 xfpan20
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    2019-02-06 qingrejiedu
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    2018-05-28 kafei

    学习了谢谢

    0

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    2018-05-27 ysb-1971

    谢谢分享

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2039536, encodeId=272f2039536ae, content=<a href='/topic/show?id=ca1294914d' target=_blank style='color:#2F92EE;'>#IGF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9491, encryptionId=ca1294914d, topicName=IGF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9dd613, createdName=xxxx1049, createdTime=Fri Feb 08 18:30:00 CST 2019, time=2019-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1656167, encodeId=cfaf165616e0b, content=<a href='/topic/show?id=f4782246ec' target=_blank style='color:#2F92EE;'>#Akt#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2246, encryptionId=f4782246ec, topicName=Akt)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b8c724776724, createdName=xfpan20, createdTime=Fri Jul 27 01:30:00 CST 2018, time=2018-07-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1752406, encodeId=132b1e5240688, content=<a href='/topic/show?id=20829492f8' target=_blank style='color:#2F92EE;'>#IGF-1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9492, encryptionId=20829492f8, topicName=IGF-1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=deaa36532338, createdName=qingrejiedu, createdTime=Wed Feb 06 09:30:00 CST 2019, time=2019-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319296, encodeId=c6e2319296d7, content=学习了谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Mon May 28 07:42:13 CST 2018, time=2018-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319118, encodeId=4b5e31911818, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epNYethSTOFuykh7ZwkiarNrrfdU8aOH960q22fkgBuibicxbKg0GfawHxZLSVX3VqEdcVBxeWdKSrkQ/132, createdBy=264d1463289, createdName=ysb-1971, createdTime=Sun May 27 19:21:58 CST 2018, time=2018-05-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=319113, encodeId=2e1e31911319, content=vvv刚刚好哈哈哈, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b0171930782, createdName=为你把脉, createdTime=Sun May 27 17:39:22 CST 2018, time=2018-05-27, status=1, ipAttribution=)]
    2018-05-27 为你把脉

    vvv刚刚好哈哈哈

    0

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