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SCIENCE:研究人员成功在体外分化出人类卵原细胞

2018-09-22 海北 MedSci原创

人体外配子发生可能改变生殖医学的现状。人多能干细胞(hPSCs)已经可以被成功诱导为原始生殖细胞样细胞(hPGCLCs)。然而,至今为止人们尚未实现进一步向成熟生殖细胞的体外分化。

人体外配子发生可能改变生殖医学的现状。人多能干细胞(hPSCs)已经可以被成功诱导为原始生殖细胞样细胞(hPGCLCs)。然而,至今为止人们尚未实现进一步向成熟生殖细胞的体外分化。
最近,来自日本京都大学的研究人员证实,在具有小鼠胚胎卵巢体细胞的异种重建卵巢中的长期体外培养(~4个月)期间,hPGCLCs能够逐渐分化为卵原细胞样细胞。
hPGCLC衍生的卵原细胞显示出表观遗传重编程的标志,即全基因组DNA去甲基化,印记擦除和hPSC中异常DNA甲基化的消除,并获得减数分裂重组的直接前体状态。此外,无活性的X染色体显示出进行性去甲基化和再活化,尽管是部分的。
这些发现确立了hPSC的种系能力,并为人体外配子发生迈进了关键的一步。

原始出处:
Yamashiro C et al. Generation of human oogonia from induced pluripotent stem cells in vitro. SCIENCE 2018, DOI: 10.1126/science.aat1674

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1907581, encodeId=3bdb190e5819b, content=<a href='/topic/show?id=379fe3364c9' target=_blank style='color:#2F92EE;'>#研究人员#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73364, encryptionId=379fe3364c9, topicName=研究人员)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=db5b227, createdName=gostraight, createdTime=Fri Apr 12 21:22:00 CST 2019, time=2019-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375867, encodeId=fb7813e586724, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Mon Sep 24 10:22:00 CST 2018, time=2018-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346205, encodeId=266934620574, content=不错的文章值得拥有, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Sat Sep 22 22:53:30 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346192, encodeId=913234619244, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Sat Sep 22 20:20:32 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346186, encodeId=85d434618639, content=认真学习,不断进步,把经验分享给同好。点赞了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfNLvzZhgPxRuUXgacXpPeW0x8Z3Qr9c3I2kTic4ZIpR29iaftYgkjRcbv982icYMtqANBPYBgPnOia6mVtX76qMXuc/0, createdBy=d85d1636106, createdName=lietome2, createdTime=Sat Sep 22 19:48:19 CST 2018, time=2018-09-22, status=1, ipAttribution=)]
    2018-09-24 jichang
  3. [GetPortalCommentsPageByObjectIdResponse(id=1907581, encodeId=3bdb190e5819b, content=<a href='/topic/show?id=379fe3364c9' target=_blank style='color:#2F92EE;'>#研究人员#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73364, encryptionId=379fe3364c9, topicName=研究人员)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=db5b227, createdName=gostraight, createdTime=Fri Apr 12 21:22:00 CST 2019, time=2019-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375867, encodeId=fb7813e586724, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Mon Sep 24 10:22:00 CST 2018, time=2018-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346205, encodeId=266934620574, content=不错的文章值得拥有, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Sat Sep 22 22:53:30 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346192, encodeId=913234619244, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Sat Sep 22 20:20:32 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346186, encodeId=85d434618639, content=认真学习,不断进步,把经验分享给同好。点赞了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfNLvzZhgPxRuUXgacXpPeW0x8Z3Qr9c3I2kTic4ZIpR29iaftYgkjRcbv982icYMtqANBPYBgPnOia6mVtX76qMXuc/0, createdBy=d85d1636106, createdName=lietome2, createdTime=Sat Sep 22 19:48:19 CST 2018, time=2018-09-22, status=1, ipAttribution=)]
    2018-09-22 1e1b8538m79(暂无匿称)

    不错的文章值得拥有

    0

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    2018-09-22 天地飞扬

    了解一下,谢谢分享!

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1907581, encodeId=3bdb190e5819b, content=<a href='/topic/show?id=379fe3364c9' target=_blank style='color:#2F92EE;'>#研究人员#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73364, encryptionId=379fe3364c9, topicName=研究人员)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=db5b227, createdName=gostraight, createdTime=Fri Apr 12 21:22:00 CST 2019, time=2019-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375867, encodeId=fb7813e586724, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Mon Sep 24 10:22:00 CST 2018, time=2018-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346205, encodeId=266934620574, content=不错的文章值得拥有, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Sat Sep 22 22:53:30 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346192, encodeId=913234619244, content=了解一下,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Sat Sep 22 20:20:32 CST 2018, time=2018-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=346186, encodeId=85d434618639, content=认真学习,不断进步,把经验分享给同好。点赞了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfNLvzZhgPxRuUXgacXpPeW0x8Z3Qr9c3I2kTic4ZIpR29iaftYgkjRcbv982icYMtqANBPYBgPnOia6mVtX76qMXuc/0, createdBy=d85d1636106, createdName=lietome2, createdTime=Sat Sep 22 19:48:19 CST 2018, time=2018-09-22, status=1, ipAttribution=)]
    2018-09-22 lietome2

    认真学习,不断进步,把经验分享给同好。点赞了!

    0

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