Biomaterials:利用空间控制的细胞分泌的神经营养因子的导管改善周围神经再生

2019-03-21 不详 网络

工程导管内神经再生的基本结构是由响应趋化因子梯度的中枢迁移施万细胞引发的“神经桥”。引入分泌神经营养因子的外源细胞旨在增强这种修复过程,但传统的细胞接种方法不能产生定向趋化因子梯度。本研究中,我们报告了一种将细胞封装在导管壁内的通用方法,可以重复控制沿导管的空间分布。结果显示,与标准细胞腔注射相比,包含在中心三分之一内的干细胞的导管在体内6周内具有显着不同的细胞分布和保留。这种构建体集中促进施万细

工程导管内神经再生的基本结构是由响应趋化因子梯度的中枢迁移施万细胞引发的“神经桥”。引入分泌神经营养因子的外源细胞旨在增强这种修复过程,但传统的细胞接种方法不能产生定向趋化因子梯度。本研究中,我们报告了一种将细胞封装在导管壁内的通用方法,可以重复控制沿导管的空间分布。

结果显示,与标准细胞腔注射相比,包含在中心三分之一内的干细胞的导管在体内6周内具有显着不同的细胞分布和保留。这种构建体集中促进施万细胞迁移,并且在16周时,大鼠表现出显着增强的功能和轴突髓鞘形成。

利用空间受限的细胞分泌蛋白的方法偏离了传统的同源细胞负荷,并提出了研究和最大化细胞应用于周围神经修复的潜力的新方法。

原始出处:

Sun AX, Prest TA, et al., Conduits harnessing spatially controlled cell-secreted neurotrophic factors improve peripheral nerve regeneration. Biomaterials. 2019 Feb 19. pii: S0142-9612(19)30058-4. doi: 10.1016/j.biomaterials.2019.01.038. 

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    2019-04-08 gwc392
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    2020-02-08 sunylz
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    2019-03-30 坚强007

    向挑战病魔的科研人员致敬!!!

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1682510, encodeId=d16316825105f, content=<a href='/topic/show?id=d4d031e8074' target=_blank style='color:#2F92EE;'>#分泌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31780, encryptionId=d4d031e8074, topicName=分泌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0da227938338, createdName=gwc392, createdTime=Mon Apr 08 08:23:00 CST 2019, time=2019-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2041328, encodeId=05c320413289a, content=<a href='/topic/show?id=5958e454081' target=_blank style='color:#2F92EE;'>#神经营养因子#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74540, encryptionId=5958e454081, topicName=神经营养因子)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Thu May 30 04:23:00 CST 2019, time=2019-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1748274, encodeId=f7291e48274ff, content=<a href='/topic/show?id=15b33952464' target=_blank style='color:#2F92EE;'>#周围神经#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=39524, encryptionId=15b33952464, topicName=周围神经)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f00136108751, createdName=Smile2692, createdTime=Mon Aug 05 20:23:00 CST 2019, time=2019-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1801933, encodeId=56c0180193387, content=<a href='/topic/show?id=f82de453923' target=_blank style='color:#2F92EE;'>#神经营养#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74539, encryptionId=f82de453923, topicName=神经营养)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d64f419, createdName=qindq, createdTime=Thu Aug 15 11:23:00 CST 2019, time=2019-08-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918587, encodeId=afca191858e4d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, 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 Feb 08 01:23:00 CST 2020, time=2020-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2050032, encodeId=14d0205003257, content=<a href='/topic/show?id=cbdd3451e3' target=_blank style='color:#2F92EE;'>#Biomaterials#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, 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 Nov 09 14:23:00 CST 2019, time=2019-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363808, encodeId=b9c636380889, content=向挑战病魔的科研人员致敬!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5171668917, createdName=坚强007, createdTime=Sat Mar 30 15:47:53 CST 2019, time=2019-03-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1523779, encodeId=a6c11523e792d, content=<a href='/topic/show?id=1c43e421182' target=_blank style='color:#2F92EE;'>#神经再生#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74211, encryptionId=1c43e421182, topicName=神经再生)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9b0211549475, createdName=hxj0121, createdTime=Sat Mar 23 04:23:00 CST 2019, time=2019-03-23, status=1, ipAttribution=)]