J Orthop Surg Res:不同方法制备的PLGA/HA纳米复合支架材料对干细胞的成骨行为影响不同

2018-04-11 MedSci MedSci原创

工程组织结构是与细胞和信号因子结合的人造支架。在各种聚合物中,聚丙交酯-共-乙交酯/羟基磷灰石(PLGA/HA)由于其优异的特性而引起了很多关注。本研究旨在研究在PLGA/HA纳米复合支架上培养的人子宫内膜干细胞(hEnSC)来源的成骨细胞的行为。 分离hEnSCs并将其暴露于成骨培养基21天。将分化的细胞在PLGA/HA合成支架上培养。使用静电纺丝或冷冻干燥方法制造基于PLGA/HA的纳米复合材

工程组织结构是与细胞和信号因子结合的人造支架。在各种聚合物中,聚丙交酯-共-乙交酯/羟基磷灰石(PLGA/HA)由于其优异的特性而引起了很多关注。本研究旨在研究在PLGA/HA纳米复合支架上培养的人子宫内膜干细胞(hEnSC)来源的成骨细胞的行为。

分离hEnSCs并将其暴露于成骨培养基21天。将分化的细胞在PLGA/HA合成支架上培养。使用静电纺丝或冷冻干燥方法制造基于PLGA/HA的纳米复合材料支架。在这些支架上接种hEnSCs衍生的成骨细胞样细胞,一周后评估细胞的行为。根据碱性磷酸酶活性、基因表达、免疫细胞化学(ICC)、增殖和扫描电子显微镜(SEM)研究成骨作用。此外,使用SEM对支架进行表征,例如孔径和形态。此外,通过3-(4,5-二甲基噻唑基-2-基)-2,5-二苯基四唑鎓溴化物(MTT)测定评估支架的生物相容性。

结果显示,茜素红染色证实基质矿化,成骨培养基处理的培养物阳性表达骨钙蛋白和骨桥蛋白标记物。此外,qRT-PCR结果证实了分化的成骨样细胞中骨桥蛋白和骨连接蛋白的阳性基因表达。培养细胞在静电纺丝和冻干支架上的行为评估结果显示,冻干PLGA/HA支架上的培养细胞其行为明显优于静电纺丝PLGA/HA支架。

该研究结果表明,冻干的PLGA/HA纳米复合支架适合支持分化的成骨细胞的附着和增殖,并且是骨组织工程的合适候选者。

原始出处:

Namini MS, Bayat N, et al., A comparison study on the behavior of human endometrial stem cell-derived osteoblast cells on PLGA/HA nanocomposite scaffolds fabricated by electrospinning and freeze-drying methods. J Orthop Surg Res. 2018 Mar 27;13(1):63. doi: 10.1186/s13018-018-0754-9.

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    2019-02-01 venlin
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  3. [GetPortalCommentsPageByObjectIdResponse(id=1704801, encodeId=06ea1e04801bb, content=<a href='/topic/show?id=0d28143e392' target=_blank style='color:#2F92EE;'>#PLGA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14373, encryptionId=0d28143e392, topicName=PLGA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c02c30837939, createdName=venlin, createdTime=Fri Feb 01 16:45:00 CST 2019, time=2019-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1775803, encodeId=929a1e7580330, content=<a href='/topic/show?id=a7235e107b2' target=_blank style='color:#2F92EE;'>#支架材料#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57107, encryptionId=a7235e107b2, topicName=支架材料)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ce4f38811844, createdName=tidiq, createdTime=Sat Sep 01 01:45:00 CST 2018, time=2018-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351704, encodeId=ac8f1351e0408, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Apr 13 12:45:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=305124, encodeId=832a305124eb, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/2EVCwc9WmQS6ec99H2TX8ejmR40xYjwrIcrqjAnibV36aicL1sLxc21rhpZnqTOxk33HP44iayEwo6qYXqgZvdRtA/132, createdBy=d0d01573846, createdName=329523732, createdTime=Thu Apr 12 17:17:17 CST 2018, time=2018-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304900, encodeId=83d2304900d6, content=不错的文章值得拥有, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Wed Apr 11 22:13:50 CST 2018, time=2018-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304883, encodeId=989330488308, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Wed Apr 11 21:54:41 CST 2018, time=2018-04-11, status=1, ipAttribution=)]
    2018-04-13 zhaojie88
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    2018-04-12 329523732

    不错

    0

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    2018-04-11 1e1b8538m79(暂无匿称)

    不错的文章值得拥有

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1704801, encodeId=06ea1e04801bb, content=<a href='/topic/show?id=0d28143e392' target=_blank style='color:#2F92EE;'>#PLGA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14373, encryptionId=0d28143e392, topicName=PLGA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c02c30837939, createdName=venlin, createdTime=Fri Feb 01 16:45:00 CST 2019, time=2019-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1775803, encodeId=929a1e7580330, content=<a href='/topic/show?id=a7235e107b2' target=_blank style='color:#2F92EE;'>#支架材料#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57107, encryptionId=a7235e107b2, topicName=支架材料)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ce4f38811844, createdName=tidiq, createdTime=Sat Sep 01 01:45:00 CST 2018, time=2018-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351704, encodeId=ac8f1351e0408, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Apr 13 12:45:00 CST 2018, time=2018-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=305124, encodeId=832a305124eb, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/2EVCwc9WmQS6ec99H2TX8ejmR40xYjwrIcrqjAnibV36aicL1sLxc21rhpZnqTOxk33HP44iayEwo6qYXqgZvdRtA/132, createdBy=d0d01573846, createdName=329523732, createdTime=Thu Apr 12 17:17:17 CST 2018, time=2018-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304900, encodeId=83d2304900d6, content=不错的文章值得拥有, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eff51996281, createdName=1e1b8538m79(暂无匿称), createdTime=Wed Apr 11 22:13:50 CST 2018, time=2018-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=304883, encodeId=989330488308, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Wed Apr 11 21:54:41 CST 2018, time=2018-04-11, status=1, ipAttribution=)]
    2018-04-11 天地飞扬

    了解一下.谢谢分享!

    0