Colloids Surf B Biointerfaces:双层电纺纳米纤维膜具有成骨和抗菌特性,可用于引导骨再生

2019-01-26 MedSci MedSci原创

引导骨再生(GBR)膜具有防止上皮和结缔组织侵入以及维持稳定空间以促进再生骨组织向内生长的潜力。然而,目前可用的膜的生物活性和再生潜力仍然需要改进。在这项研究中,研究人员为GBR应用开发了一种具有成骨和抗菌功能的新型双层膜。膜的松散层(LL)由共轭的电纺聚(乳酸-共-羟基乙酸)(PLGA)/明胶纳米纤维组成,其中加入地塞米松负载的介孔二氧化硅纳米粒子(DEX@MSNs),而致密层(DL)由传统的电

引导骨再生(GBR)膜具有防止上皮和结缔组织侵入以及维持稳定空间以促进再生骨组织向内生长的潜力。然而,目前可用的膜的生物活性和再生潜力仍然需要改进。在这项研究中,研究人员为GBR应用开发了一种具有成骨和抗菌功能的新型双层膜。

膜的松散层(LL)由共轭的电纺聚(乳酸-共-羟基乙酸)(PLGA)/明胶纳米纤维组成,其中加入地塞米松负载的介孔二氧化硅纳米粒子(DEX@MSNs),而致密层(DL)由传统的电纺PLGA纳米纤维组成,其载有广谱抗生素强力霉素盐酸盐(DCH)。形态学结果显示LL(DEX@MSNs /PLGA /Gel)膜显示出多孔且松散堆积的结构,这有利于细胞粘附和渗透,而DL(DCH/PLGA)膜保持足够致密以充当屏障。体外药物释放试验表明DEX和DCH均遵循有利的持续释放曲线。细胞活力评估表明电纺膜具有良好的细胞相容性。此外,体外成骨分析表明,DEX@MSNs / PLGA /凝胶复合膜对大鼠骨髓干细胞(BMSCs)具有增强的骨诱导能力,这通过增加的碱性磷酸酶(ALP)活性,增强的钙沉积和上调的骨钙素(OCN)表达得到证实。体外抗微生物实验揭示了DCH/PLGA膜的有效抗菌效力。

总之,该研究结果表明,研究所制备的纳米载体结合的双层复合膜具有成骨和抗菌特性,可能是GBR应用的有希望的候选者。

原始出处:

Lian M, Sun B, et al., Bi-layered electrospun nanofibrous membrane with osteogenic and antibacterial properties for guided bone regeneration. Colloids Surf B Biointerfaces. 2019 Jan 3;176:219-229. doi: 10.1016/j.colsurfb.2018.12.071. 

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    2019-08-14 waiwai3030
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  4. [GetPortalCommentsPageByObjectIdResponse(id=1635695, encodeId=0686163569553, content=<a href='/topic/show?id=1059e743357' target=_blank style='color:#2F92EE;'>#纳米纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77433, encryptionId=1059e743357, topicName=纳米纤维)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=64fe22519052, createdName=1249883fm19暂无昵称, createdTime=Fri Jul 26 23:37:00 CST 2019, time=2019-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1783344, encodeId=63511e8334426, content=<a href='/topic/show?id=f16a499652' target=_blank style='color:#2F92EE;'>#Coll#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4996, encryptionId=f16a499652, topicName=Coll)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=07f7192, createdName=waiwai3030, createdTime=Wed Aug 14 15:37:00 CST 2019, time=2019-08-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956745, encodeId=8c511956e454a, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, 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=Thu Aug 22 21:37:00 CST 2019, time=2019-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918503, encodeId=572019185036c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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 Jun 01 09:37:00 CST 2019, time=2019-06-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655919, encodeId=ac8516559194a, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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 Dec 22 17:37:00 CST 2019, time=2019-12-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330795, encodeId=fb951330e9544, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=17, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351986, encodeId=9ceb135198667, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472171, encodeId=b93114e21711b, 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=19, 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=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=)]
    2019-06-01 sunylz
  5. [GetPortalCommentsPageByObjectIdResponse(id=1635695, encodeId=0686163569553, content=<a href='/topic/show?id=1059e743357' target=_blank style='color:#2F92EE;'>#纳米纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77433, encryptionId=1059e743357, topicName=纳米纤维)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=64fe22519052, createdName=1249883fm19暂无昵称, createdTime=Fri Jul 26 23:37:00 CST 2019, time=2019-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1783344, encodeId=63511e8334426, content=<a href='/topic/show?id=f16a499652' target=_blank style='color:#2F92EE;'>#Coll#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4996, encryptionId=f16a499652, topicName=Coll)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=07f7192, createdName=waiwai3030, createdTime=Wed Aug 14 15:37:00 CST 2019, time=2019-08-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956745, encodeId=8c511956e454a, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, 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=Thu Aug 22 21:37:00 CST 2019, time=2019-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918503, encodeId=572019185036c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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 Jun 01 09:37:00 CST 2019, time=2019-06-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655919, encodeId=ac8516559194a, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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 Dec 22 17:37:00 CST 2019, time=2019-12-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330795, encodeId=fb951330e9544, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=17, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351986, encodeId=9ceb135198667, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472171, encodeId=b93114e21711b, 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=19, 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=Mon Jan 28 11:37:00 CST 2019, time=2019-01-28, status=1, ipAttribution=)]
    2019-12-22 shanyongle
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    2019-01-28 zhaojie88
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    2019-01-28 lsj630