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Sci Transl Med:移植生物工程肺

2018-08-03 小通 生物通

德克萨斯大学医学分部的一个研究小组将具有功能的生物工程肺移植到成年猪体内,术后未出现医疗并发症。


德克萨斯大学医学分部的一个研究小组将具有功能的生物工程肺移植到成年猪体内,术后未出现医疗并发症。

2014年德州大学医学分部的Joan Nichols和Joaquin Cortiella成为了世上首创生物人工肺的第一人。今年,他们发表《Science Translational Medicine》最新文章将人工肺移植到了猪身上。

“全球范围内,严重肺损伤人数逐年增加,然而,可移植的器官却越来越少,”儿科麻醉教授Cortiella说。“我们的最终目标是为等待肺移植患者提供新选择机会。”

为了制造生物工程肺,需要一种支撑支架来满足肺的结构需求。研究人员使用一种特殊的糖和去垢剂混合物消除非同源动物肺的所有细胞和IBD%E8%AF%8A%E6%B2%BB%E8%BF%87%E7%A8%8B%E4%B8%AD%E7%9A%84%E8%AF%84%E4%BC%B0-Part%202" target="_blank">血液,只留下脚手架蛋白或肺骨架(完全由肺蛋白制成的肺形支架)。

随后,肺支架被放入一个充满鸡尾酒营养液的容器中,再加入动物自己的细胞,按照精心设计的操作和配方饲养30天,然后移植。研究小组检查了动物在移植后10个小时、2周、1个月和2个月的肺组织发育等相关信息。

所有接受生物工程肺的猪都很健康。在2周内,生物工程肺就建立起了强有力的血管网络使新肺得以存活。

“我们未发现血管系统发育不成熟征兆‘肺水肿’的迹象,”Cortiella说。“在没有任何生长因子注入的情况下,生物工程肺保持了良好的生长态势,身体为其提供了所有新肺所需的构筑材料。”

Nichols说,研究的重点是了解生物工程肺在大型动物体内的适应能力和继续成熟程度,他们并没有对生物工程肺的氧合作用做出评估。

“我们知道动物的正常肺功能是100%血氧饱和度,”Cortiella说。“但是,目前我们的生物工程肺在2个月后仍不够成熟,我们无法阻止动物使用正常肺而全部依赖生物工程肺来呼吸。”

鉴于这个原因,研究人员还将进一步着眼于长期组织存活和成熟以及气体交换能力。“如果有足够的资金,5-10年内,我们可以对‘有需要’的患者进行人工肺移植,”Nichols和Cortiella说。“15年了,我们花费巨大心血让这项研究走得更远,我们的团队用看上去‘荒谬’的小预算做了一件不可思议的事情,这是一个令人敬畏的团队。”

原始出处:

Joan E. Nichols, et al. Production and transplantation of bioengineered lung into a large-animal model. Science Translational Medicine Vol. 10, No. 452 | Aug 2nd, 2018 DOI: 10.1126/scitranslmed.aao3926

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    2018-10-10 大爰

    学习并分享!!

    0

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    2018-09-16 大爰

    学习了谢谢分享!!

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1695479, encodeId=987116954e95e, 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=65, 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=Thu Dec 06 18:36:00 CST 2018, time=2018-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2067369, encodeId=f38f206e36928, content=<a href='/topic/show?id=d0841e75535' target=_blank style='color:#2F92EE;'>#Transl#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17755, encryptionId=d0841e75535, topicName=Transl)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/363C99735735B7F4CB11D5F78F580525/100, createdBy=aab22500211, createdName=ms3025846204744509, createdTime=Tue Feb 05 05:36:00 CST 2019, time=2019-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=348732, encodeId=ae8c348e3251, content=学习并分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Wed Oct 10 08:40:23 CST 2018, time=2018-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=345265, encodeId=2899345265fd, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Sun Sep 16 21:22:05 CST 2018, time=2018-09-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1657047, encodeId=f056165e047f5, content=<a href='/topic/show?id=3ca31e71903' target=_blank style='color:#2F92EE;'>#TRA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17719, encryptionId=3ca31e71903, topicName=TRA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=757b24868428, createdName=bsmagic9140, createdTime=Wed Sep 19 11:36:00 CST 2018, time=2018-09-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340342, encodeId=1518340342ba, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Thu Aug 23 09:10:11 CST 2018, time=2018-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609013, encodeId=77ee16090138d, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun Aug 05 08:36:00 CST 2018, time=2018-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=336214, encodeId=d6133362142c, content=学习并分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=107, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Sat Aug 04 08:19:40 CST 2018, time=2018-08-04, status=1, ipAttribution=)]
    2018-09-19 bsmagic9140
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    2018-08-23 大爰

    学习了谢谢分享!!

    0

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    2018-08-04 大爰

    学习并分享!!

    0

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