J Biomed Mater Res A:材料形貌增强MC3T3-E1细胞的成骨分化或与YAP相关

2018-02-09 MedSci MedSci原创

许多研究表明,表面形貌可以促进细胞与基质的结合,大大影响细胞的命运。细胞内机制或微观/纳米级的细胞外信号最终如何与核转录因子相联系仍然未知。据报道,Yes相关蛋白(YAP)可以响应细胞外基质微环境信号,从而调节干细胞分化过程。因此,我们猜想YAP可能在介导形貌诱导的细胞分化中起作用。为此,我们制作了具有网格拓扑(GT)(3μm图案宽度,2μm图案间隔长度,7μm图案高度)的聚二甲基硅氧烷(PDMS

许多研究表明,表面形貌可以促进细胞与基质的结合,大大影响细胞的命运。细胞内机制或微观/纳米级的细胞外信号最终如何与核转录因子相联系仍然未知。据报道,Yes相关蛋白(YAP)可以响应细胞外基质微环境信号,从而调节干细胞分化过程。因此,我们猜想YAP可能在介导形貌诱导的细胞分化中起作用。

为此,我们制作了具有网格拓扑(GT)(3μm图案宽度,2μm图案间隔长度,7μm图案高度)的聚二甲基硅氧烷(PDMS)微图案。使用非图案化的PDMS基底作为平面对照。然后将MC3T3-E1细胞在成骨诱导培养基中分别在这些表面上培养。评估成骨相关基因表达,蛋白质水平,碱性磷酸酶活性和细胞外基质矿化方面。

结果显示,GT表面的细胞具有较强的成骨能力。另外,GT基底上生长的MC3T3-E1细胞的YAP表达水平增加,与成骨分化标志物的水平相似。YAP敲低减弱了GT底物诱导的MC3T3-E1分化,降低了GT底物的成骨分化效应。

综上所述,该研究结果表明,GT底物诱导的MC3T3-E1分化可能与YAP有关。本文为微环境诱导细胞分化的转录机制研究提供了新的靶点,为组织工程获得更多的生物功能化支架提供了一条有用途径。

原始出处:

Zhang Y, Gong H, et al., Enhanced osteogenic differentiation of MC3T3-E1 cells on grid-topographic surface and evidence for involvement of YAP mediator. J Biomed Mater Res A. 2016 May;104(5):1143-52. doi: 10.1002/jbm.a.35648. Epub 2016 Feb 2.

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1821291, encodeId=4dd81821291e7, content=<a href='/topic/show?id=428a101612e7' target=_blank style='color:#2F92EE;'>#骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101612, encryptionId=428a101612e7, topicName=骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/qXbLjJB4FSzhQS3C5qQFMJkqicRIJFL6zHFwwhv0I95nzA6xicevQcEica0gk4A58UkbMMriadAgTY2b7N7Yd0ZsQg/132, createdBy=910c2500152, createdName=HinsMax, createdTime=Tue Aug 28 07:47:00 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917928, encodeId=f82a191e928db, 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=Mon Nov 12 11:47:00 CST 2018, time=2018-11-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2081894, encodeId=2654208189450, content=<a href='/topic/show?id=c2971893397' target=_blank style='color:#2F92EE;'>#YAP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18933, encryptionId=c2971893397, topicName=YAP)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3333505, createdName=gujh, createdTime=Mon May 14 07:47:00 CST 2018, time=2018-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1337437, encodeId=eb1a133e4373b, content=<a href='/topic/show?id=863f5409610' target=_blank style='color:#2F92EE;'>#成骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54096, encryptionId=863f5409610, topicName=成骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351659, encodeId=713b13516596c, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1608553, encodeId=e8b616085539b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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 Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=)]
    2018-08-28 HinsMax
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    2018-11-12 sunylz
  3. [GetPortalCommentsPageByObjectIdResponse(id=1821291, encodeId=4dd81821291e7, content=<a href='/topic/show?id=428a101612e7' target=_blank style='color:#2F92EE;'>#骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101612, encryptionId=428a101612e7, topicName=骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/qXbLjJB4FSzhQS3C5qQFMJkqicRIJFL6zHFwwhv0I95nzA6xicevQcEica0gk4A58UkbMMriadAgTY2b7N7Yd0ZsQg/132, createdBy=910c2500152, createdName=HinsMax, createdTime=Tue Aug 28 07:47:00 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917928, encodeId=f82a191e928db, 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=Mon Nov 12 11:47:00 CST 2018, time=2018-11-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2081894, encodeId=2654208189450, content=<a href='/topic/show?id=c2971893397' target=_blank style='color:#2F92EE;'>#YAP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18933, encryptionId=c2971893397, topicName=YAP)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3333505, createdName=gujh, createdTime=Mon May 14 07:47:00 CST 2018, time=2018-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1337437, encodeId=eb1a133e4373b, content=<a href='/topic/show?id=863f5409610' target=_blank style='color:#2F92EE;'>#成骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54096, encryptionId=863f5409610, topicName=成骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351659, encodeId=713b13516596c, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1608553, encodeId=e8b616085539b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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 Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=)]
    2018-05-14 gujh
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1821291, encodeId=4dd81821291e7, content=<a href='/topic/show?id=428a101612e7' target=_blank style='color:#2F92EE;'>#骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101612, encryptionId=428a101612e7, topicName=骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/qXbLjJB4FSzhQS3C5qQFMJkqicRIJFL6zHFwwhv0I95nzA6xicevQcEica0gk4A58UkbMMriadAgTY2b7N7Yd0ZsQg/132, createdBy=910c2500152, createdName=HinsMax, createdTime=Tue Aug 28 07:47:00 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917928, encodeId=f82a191e928db, 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=Mon Nov 12 11:47:00 CST 2018, time=2018-11-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2081894, encodeId=2654208189450, content=<a href='/topic/show?id=c2971893397' target=_blank style='color:#2F92EE;'>#YAP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18933, encryptionId=c2971893397, topicName=YAP)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3333505, createdName=gujh, createdTime=Mon May 14 07:47:00 CST 2018, time=2018-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1337437, encodeId=eb1a133e4373b, content=<a href='/topic/show?id=863f5409610' target=_blank style='color:#2F92EE;'>#成骨分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54096, encryptionId=863f5409610, topicName=成骨分化)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1351659, encodeId=713b13516596c, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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=Sun Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1608553, encodeId=e8b616085539b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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 Feb 11 04:47:00 CST 2018, time=2018-02-11, status=1, ipAttribution=)]
    2018-02-11 zhaojie88
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