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Biomaterials:使用倒置的胶体晶体聚(乙二醇)支架将人iPS衍生的祖细胞生物工程化成肝脏类器官

2019-03-20 不详 网络

从诱导的多能干细胞(iPSC)产生人类器官为发育生物学,疾病建模和细胞疗法提供了令人激动的可能性。通过依赖动物衍生的基质(例如Matrigel),永生化细胞系和难以控制或量化的所得结构,阻碍了实现这些目标的进步。为了应对这些挑战,我们使用倒置胶体晶体(ICC)开发一个完全确定的肝脏类器官平台,其三维机械特性可以被设计为重现人类发育过程中肝脏祖细胞感知的细胞外生态位。 iPSC衍生的肝祖细胞(IH)

从诱导的多能干细胞(iPSC)产生人类器官为发育生物学,疾病建模和细胞疗法提供了令人激动的可能性。通过依赖动物衍生的基质(例如Matrigel),永生化细胞系和难以控制或量化的所得结构,阻碍了实现这些目标的进步。为了应对这些挑战,我们使用倒置胶体晶体(ICC)开发一个完全确定的肝脏类器官平台,其三维机械特性可以被设计为重现人类发育过程中肝脏祖细胞感知的细胞外生态位。

iPSC衍生的肝祖细胞(IH)在ICC支架中很好的形成类器官,所述ICC支架由涂有I型胶原的140μm直径孔构建,模拟肝芽形成的两步过程。与2D和3D对照相比,所形成的类器官在形态学,基因表达,蛋白质分泌,药物代谢和病毒感染方面更接近成体组织,并且在植入免疫缺陷小鼠的肝脏后可以整合,血管化和功能。对基础机制的初步探究突出了TGFβ和hedgehog信号通路的重要性。

总之,该研究中,功能相关性与可调机械性能的结合使该生物工程平台非常适用于一系列未来的机械和临床类器官相关应用。

原始出处:

Soon Seng Ng,c Kourosh Saeb-Parsy, et al., Human iPS derived progenitors bioengineered into liver organoids using an inverted colloidal crystal poly (ethylene glycol) scaffold. Biomaterials. 2018 Nov; 182: 299–311.

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    2019-04-24 weiz
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    2019-11-02 sunylz
  5. [GetPortalCommentsPageByObjectIdResponse(id=1755206, encodeId=be281e55206aa, content=<a href='/topic/show?id=536f2338e8d' target=_blank style='color:#2F92EE;'>#乙二醇#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23387, encryptionId=536f2338e8d, topicName=乙二醇)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b11f36846752, createdName=weiz, createdTime=Wed Apr 24 21:25:00 CST 2019, time=2019-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2050025, encodeId=86d02050025a0, content=<a href='/topic/show?id=cbdd3451e3' target=_blank style='color:#2F92EE;'>#Biomaterials#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3451, encryptionId=cbdd3451e3, topicName=Biomaterials)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8e0333, createdName=zhangyxzsh, createdTime=Sat May 11 21:25:00 CST 2019, time=2019-05-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1695480, encodeId=e906169548024, content=<a href='/topic/show?id=40716932564' target=_blank style='color:#2F92EE;'>#生物工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69325, encryptionId=40716932564, topicName=生物工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55683, createdName=仁医06, createdTime=Mon Dec 23 03:25:00 CST 2019, time=2019-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918580, encodeId=14eb191858010, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sat Nov 02 10:25:00 CST 2019, time=2019-11-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1749244, encodeId=ff021e4924471, content=<a href='/topic/show?id=15ece796246' target=_blank style='color:#2F92EE;'>#细胞生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77962, encryptionId=15ece796246, topicName=细胞生物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=eedf36252858, createdName=wetgdt, createdTime=Fri May 31 12:25:00 CST 2019, time=2019-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1377772, encodeId=003313e777245, content=<a href='/topic/show?id=17b810004ce' target=_blank style='color:#2F92EE;'>#iPS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10004, encryptionId=17b810004ce, topicName=iPS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=69cb413, createdName=chengjn, createdTime=Fri Mar 22 07:25:00 CST 2019, time=2019-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1512462, encodeId=7946151246227, content=<a href='/topic/show?id=f802e4102cb' target=_blank style='color:#2F92EE;'>#祖细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74102, encryptionId=f802e4102cb, topicName=祖细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f18310470858, createdName=12498636m52(暂无昵称), createdTime=Fri Mar 22 07:25:00 CST 2019, time=2019-03-22, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1755206, encodeId=be281e55206aa, content=<a href='/topic/show?id=536f2338e8d' target=_blank style='color:#2F92EE;'>#乙二醇#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23387, encryptionId=536f2338e8d, topicName=乙二醇)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b11f36846752, createdName=weiz, createdTime=Wed Apr 24 21:25:00 CST 2019, time=2019-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2050025, encodeId=86d02050025a0, content=<a href='/topic/show?id=cbdd3451e3' target=_blank style='color:#2F92EE;'>#Biomaterials#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3451, encryptionId=cbdd3451e3, topicName=Biomaterials)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8e0333, createdName=zhangyxzsh, createdTime=Sat May 11 21:25:00 CST 2019, time=2019-05-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1695480, encodeId=e906169548024, content=<a href='/topic/show?id=40716932564' target=_blank style='color:#2F92EE;'>#生物工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69325, encryptionId=40716932564, topicName=生物工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55683, createdName=仁医06, createdTime=Mon Dec 23 03:25:00 CST 2019, time=2019-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918580, encodeId=14eb191858010, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sat Nov 02 10:25:00 CST 2019, time=2019-11-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1749244, encodeId=ff021e4924471, content=<a href='/topic/show?id=15ece796246' target=_blank style='color:#2F92EE;'>#细胞生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77962, encryptionId=15ece796246, topicName=细胞生物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=eedf36252858, createdName=wetgdt, createdTime=Fri May 31 12:25:00 CST 2019, time=2019-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1377772, encodeId=003313e777245, content=<a href='/topic/show?id=17b810004ce' target=_blank style='color:#2F92EE;'>#iPS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10004, encryptionId=17b810004ce, topicName=iPS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=69cb413, createdName=chengjn, createdTime=Fri Mar 22 07:25:00 CST 2019, time=2019-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1512462, encodeId=7946151246227, content=<a href='/topic/show?id=f802e4102cb' target=_blank style='color:#2F92EE;'>#祖细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74102, encryptionId=f802e4102cb, topicName=祖细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f18310470858, createdName=12498636m52(暂无昵称), createdTime=Fri Mar 22 07:25:00 CST 2019, time=2019-03-22, status=1, ipAttribution=)]
    2019-03-22 chengjn
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