ACS Appl Mater Interfaces:低剂量BMP的PLA-PD-BMP可更好的诱导骨再生

2018-04-11 MedSci MedSci原创

植入物在骨愈合和再生中的骨诱导活性仍然是一个具有挑战性的问题。重组人骨形态发生蛋白-2(BMP-2)可有效增强骨生成。然而,高剂量和不受控制的BMP-2的突释可能引起水肿、骨过度生长、囊状骨形成和炎症。在这项研究中,研究人员上使用1μg低剂量BMP-2来设计PLA-PD-BMP,通过贻贝灵敏聚多巴胺(PD)辅助功能化聚乳酸(PLA)植入物。首次,使用抗原-抗体反应直接证明和分析了BMP-2的PD涂

植入物在骨愈合和再生中的骨诱导活性仍然是一个具有挑战性的问题。重组人骨形态发生蛋白-2(BMP-2)可有效增强骨生成。然而,高剂量和不受控制的BMP-2的突释可能引起水肿、骨过度生长、囊状骨形成和炎症。

在这项研究中,研究人员上使用1μg低剂量BMP-2来设计PLA-PD-BMP,通过贻贝灵敏聚多巴胺(PD)辅助功能化聚乳酸(PLA)植入物。首次,使用抗原-抗体反应直接证明和分析了BMP-2的PD涂层的结合特性和效率。

结果显示,使用这种低剂量BMP-2固定所获得的PLA-PD-BMP表面可赋予植入物更强的干细胞粘附,并增强成骨能力。此外,PLA-PD-BMP-2支架的体内成骨诱导在大鼠异位骨模型中证实,该模型为骨诱导活性证据的“金标准”。微型计算机断层扫描、杨氏模量和组织学分析也用于证明用1μgBMP-2移植的PLA-PD-BMP可诱导骨形成。

因此,本研究中的方法可用作模型系统,将其他生长因子固定在各种不同类型的聚合物基质上。高仿生贻贝衍生策略可以以简便、安全和有效的方式改善聚合物型医用植入物的临床结果。

原始出处:

Chen Z, Zhang Z, et al., Influence of Mussel-Derived Bioactive BMP-2-Decorated PLA on MSC Behavior in Vitro and Verification with Osteogenicity at Ectopic Sites in Vivo. ACS Appl Mater Interfaces. 2018 Mar 30. doi: 10.1021/acsami.8b01547.

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    2018-08-20 HNYYM
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    2019-01-13 shanyongle
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    2018-04-13 yaanren
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    2018-04-13 lsj630
  6. [GetPortalCommentsPageByObjectIdResponse(id=1634030, encodeId=eb5a1634030ea, content=<a href='/topic/show?id=596635e549' target=_blank style='color:#2F92EE;'>#BMP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3575, encryptionId=596635e549, topicName=BMP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d95322064897, createdName=HNYYM, createdTime=Mon Aug 20 04:59:00 CST 2018, time=2018-08-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956688, encodeId=61221956688da, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7210, encryptionId=7647e210ac, topicName=FAC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/B389FA68ECBF51BE2FE14093CF61F6AE/100, createdBy=eb8e2500096, createdName=夏天与十三菇凉, createdTime=Fri May 18 18:59:00 CST 2018, time=2018-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655856, encodeId=032a165585636, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1829, encryptionId=2a011829d7, topicName=ACE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=635024767990, createdName=shanyongle, createdTime=Sun Jan 13 23:59:00 CST 2019, time=2019-01-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279255, encodeId=906f12e92551a, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472126, encodeId=439b14e212634, content=<a href='/topic/show?id=d068101610b9' target=_blank style='color:#2F92EE;'>#骨再生#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101610, encryptionId=d068101610b9, topicName=骨再生)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a4cf7208806, createdName=lsj630, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480490, encodeId=d7ff1480490c7, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304906, encodeId=fca0304906b2, content=学习了.谢谢分享., beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Wed Apr 11 23:03:24 CST 2018, time=2018-04-11, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1634030, encodeId=eb5a1634030ea, content=<a href='/topic/show?id=596635e549' target=_blank style='color:#2F92EE;'>#BMP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3575, encryptionId=596635e549, topicName=BMP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d95322064897, createdName=HNYYM, createdTime=Mon Aug 20 04:59:00 CST 2018, time=2018-08-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956688, encodeId=61221956688da, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7210, encryptionId=7647e210ac, topicName=FAC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/B389FA68ECBF51BE2FE14093CF61F6AE/100, createdBy=eb8e2500096, createdName=夏天与十三菇凉, createdTime=Fri May 18 18:59:00 CST 2018, time=2018-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655856, encodeId=032a165585636, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1829, encryptionId=2a011829d7, topicName=ACE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=635024767990, createdName=shanyongle, createdTime=Sun Jan 13 23:59:00 CST 2019, time=2019-01-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279255, encodeId=906f12e92551a, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472126, encodeId=439b14e212634, content=<a href='/topic/show?id=d068101610b9' target=_blank style='color:#2F92EE;'>#骨再生#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101610, encryptionId=d068101610b9, topicName=骨再生)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a4cf7208806, createdName=lsj630, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480490, encodeId=d7ff1480490c7, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Fri Apr 13 13:59:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304906, encodeId=fca0304906b2, content=学习了.谢谢分享., beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Wed Apr 11 23:03:24 CST 2018, time=2018-04-11, status=1, ipAttribution=)]
    2018-04-11 惠映实验室

    学习了.谢谢分享.

    0