Baidu
map

J Endod:人冻干牙本质基质可作为牙组织工程中的生物活性支架材料

2019-10-07 lishiting MedSci原创

牙本质是牙组织工程中适宜的支架材料,并且能为调节牙源性细胞提供适当浓度的生物活性蛋白成分。冻干是处理牙本质的一种可行策略,因其能够长效保持生物药剂产品以及牙本质的稳定,进而改善分布和存储。因此,作者认为:冻干牙本质基质(FDDM)能够为牙组织再生组成一种全新的生物结构支架。

牙本质是牙组织工程中适宜的支架材料,并且能为调节牙源性细胞提供适当浓度的生物活性蛋白成分。冻干是处理牙本质的一种可行策略,因其能够长效保持生物药剂产品以及牙本质的稳定,进而改善分布和存储。因此,作者认为:冻干牙本质基质(FDDM)能够为牙组织再生组成一种全新的生物结构支架。


研究采用一种改良技术制备FDDM以保存牙本质的机械和生物特性。检测FDDM的抗压能力以及显微硬度。同时,检测其不同的生物特征,包括:细胞形态、细胞增殖、胶原分泌、碱性磷酸酶活性以及基因和蛋白表达。为了评估FDDM的体内诱导活性,将FDDM和人牙髓干细胞(DPSC)膜片同时植入裸鼠背部皮下。移植8周后,取出移植物并进行组织学观察和分析。


结果显示,FDDM的机械性能和生物学特点与牙本质相似(P > .05)。与培养于a-MEM或羟基磷灰石的DPSCs相比,培养于FDDM和牙本质上的DPSCs表现出极佳的细胞粘附、生长、活性和胶原分泌能力,但矿化能力减弱(P < .05)。组织学结果显示,FDDM与牙本质相似,支持体内牙本质/牙髓的组织再生,同时相关牙本质标志物表达水平上调,如:牙本质涎蛋白和碱性磷酸酶。


结论:这些结果表明,FDDM为牙组织再生构成了一种极佳的支架材料。


原始出处:


Wang F, Xie C, et al. Human Freeze-dried Dentin Matrix as a Biologically Active Scaffold for Tooth Tissue Engineering. J Endod. 2019 Sep 26. pii: S0099-2399(19)30589-8. doi: 10.1016/j.joen.2019.08.006.


本文系梅斯医学(MedSci)原创编译整理,转载需授权!


版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1775809, encodeId=b3a31e7580962, 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=82, 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=Fri May 29 03:23:00 CST 2020, time=2020-05-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757190, encodeId=a8191e57190e6, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42170, encryptionId=103b421e0e8, topicName=基质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=281337296540, createdName=ms7899726347904398, createdTime=Fri Mar 27 11:23:00 CST 2020, time=2020-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417206, encodeId=ad2d141e2067c, content=<a href='/topic/show?id=8b72e769056' target=_blank style='color:#2F92EE;'>#组织工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77690, encryptionId=8b72e769056, topicName=组织工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c62f3243688, createdName=zhu_jun9838, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441965, encodeId=3e6a1441965cf, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=373668, encodeId=2de33e36681b, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Tue Oct 08 21:01:04 CST 2019, time=2019-10-08, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1775809, encodeId=b3a31e7580962, 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=82, 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=Fri May 29 03:23:00 CST 2020, time=2020-05-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757190, encodeId=a8191e57190e6, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42170, encryptionId=103b421e0e8, topicName=基质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=281337296540, createdName=ms7899726347904398, createdTime=Fri Mar 27 11:23:00 CST 2020, time=2020-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417206, encodeId=ad2d141e2067c, content=<a href='/topic/show?id=8b72e769056' target=_blank style='color:#2F92EE;'>#组织工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77690, encryptionId=8b72e769056, topicName=组织工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c62f3243688, createdName=zhu_jun9838, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441965, encodeId=3e6a1441965cf, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=373668, encodeId=2de33e36681b, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Tue Oct 08 21:01:04 CST 2019, time=2019-10-08, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1775809, encodeId=b3a31e7580962, 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=82, 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=Fri May 29 03:23:00 CST 2020, time=2020-05-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757190, encodeId=a8191e57190e6, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42170, encryptionId=103b421e0e8, topicName=基质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=281337296540, createdName=ms7899726347904398, createdTime=Fri Mar 27 11:23:00 CST 2020, time=2020-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417206, encodeId=ad2d141e2067c, content=<a href='/topic/show?id=8b72e769056' target=_blank style='color:#2F92EE;'>#组织工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77690, encryptionId=8b72e769056, topicName=组织工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c62f3243688, createdName=zhu_jun9838, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441965, encodeId=3e6a1441965cf, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=373668, encodeId=2de33e36681b, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Tue Oct 08 21:01:04 CST 2019, time=2019-10-08, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1775809, encodeId=b3a31e7580962, 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=82, 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=Fri May 29 03:23:00 CST 2020, time=2020-05-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757190, encodeId=a8191e57190e6, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42170, encryptionId=103b421e0e8, topicName=基质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=281337296540, createdName=ms7899726347904398, createdTime=Fri Mar 27 11:23:00 CST 2020, time=2020-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417206, encodeId=ad2d141e2067c, content=<a href='/topic/show?id=8b72e769056' target=_blank style='color:#2F92EE;'>#组织工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77690, encryptionId=8b72e769056, topicName=组织工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c62f3243688, createdName=zhu_jun9838, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441965, encodeId=3e6a1441965cf, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=373668, encodeId=2de33e36681b, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Tue Oct 08 21:01:04 CST 2019, time=2019-10-08, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1775809, encodeId=b3a31e7580962, 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=82, 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=Fri May 29 03:23:00 CST 2020, time=2020-05-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757190, encodeId=a8191e57190e6, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42170, encryptionId=103b421e0e8, topicName=基质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=281337296540, createdName=ms7899726347904398, createdTime=Fri Mar 27 11:23:00 CST 2020, time=2020-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417206, encodeId=ad2d141e2067c, content=<a href='/topic/show?id=8b72e769056' target=_blank style='color:#2F92EE;'>#组织工程#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77690, encryptionId=8b72e769056, topicName=组织工程)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c62f3243688, createdName=zhu_jun9838, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441965, encodeId=3e6a1441965cf, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Oct 09 11:23:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=373668, encodeId=2de33e36681b, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Tue Oct 08 21:01:04 CST 2019, time=2019-10-08, status=1, ipAttribution=)]
    2019-10-08 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

相关资讯

J Biomater Appl:牺牲模板法合成新型支架可为细胞的增殖提供良好的生存环境

与块状结构相比,模仿天然细胞外基质的三维纳米纤维支架可增加细胞附着和分化,在组织工程和再生医学具有巨大的应用前景。在这项工作中,研究人员首次采用牺牲模板法制备了三维多孔纳米纤维58S生物玻璃支架。在此过程中,使用天然的三维纳米纤维细菌纤维素作为牺牲模板,通过溶胶-凝胶法在其上沉积前体58S玻璃。 SEM和TEM结果证实所制备的58S支架能够继承细菌纤维素的三维纳米纤维特征。通过氮气吸附-解吸对介孔

J Endod:细胞归巢用于内源性牙本质基质蛋白的牙髓组织工程

已有令人瞩目的结果显示,干细胞移植后的牙髓组织工程是可行的。尽管引人入胜,但对其临床应用依旧存在巨大障碍。已有研究显示,细胞归巢可以作为支架材料中牙本质来源生长因子的有效替代,诱导固有细胞形成牙髓样组织。这篇研究的目的是为了探讨异位动物模型应用于原位牙髓组织工程中是否在收集干细胞于空根管后会诱导牙髓样组织的形成,以及这种作用是否会被牙本质来源的生长因子所增强。

Macromol Biosci:GO改性聚醚醚酮具有优良的抗菌成骨特性,或可作为骨组织工程的生物材料使用

聚醚醚酮(PEEK)与人类骨骼具有相似的弹性模量,因此被认为是优异的细胞相容性材料。然而,由于PEEK的生物惰性、骨传导性差以及抗菌活性弱限制了其广泛应用。在这项研究中,研究人员通过简单的浸涂方法开发了一种简便的策略来制备氧化石墨烯(GO)改性的磺化聚醚醚酮(SPEEK)(GO-SPEEK)。表征后发现GO紧密沉积在PEEK表面,这归因于PEEK和GO之间的π-π堆积相互作用。抗菌试验显示,GO-

Int J Nanomed:氧化石墨稀支架或可用于牙周组织工程

三维支架在牙周组织工程治疗中骨组织的体积和质量恢复中起关键作用。我们制造了一种新型3D胶原支架,其中含有碳基二维层状材料(氧化石墨烯 GO )。本研究旨在描述和评估GO支架在犬Ⅱ类根分叉病变中的骨组织的愈合效果。通过使用GO分散体涂覆在3D胶原海绵支架的表面制备GO支架。使用细胞毒性和组织反应性测试来表征支架。最后将GO支架植入犬II类根分叉病变的缺损中,术后4周探究牙周愈合情况。结果显示,GO支

Biomed Pharmacother:血管生成素2促进组织工程骨中的血管生成,并通过诱导自噬改善骨缺损的修复

血管生成在组织工程骨修复大节段性骨缺损中起关键作用。然而,目前还未有有效的方法促进组织工程骨中的血管生成。研究已经证实血管生成素2(Ang2)和自噬均与血管生成有关,但其在组织工程骨的血管生成中的作用仍然未知。 体内研究中,使用新西兰白兔制造桡骨缺损,植入羟基磷灰石/胶原支架然后注射不同浓度的Ang2来治疗。通过蛋白质印迹法测量自噬调节剂微管相关蛋白1轻链3(LC3),Beclin-1和SQ

Acta Biomater:具有免疫调节功能的组织工程支架可促进血管生成

为了促进组织工程骨的血管化,将IFN-γ极化巨噬细胞至M1加载到5%硅酸钙/β-磷酸三钙(CaSiO3-β-TCP)支架上。从支架释放的IFN-γ和Si分别使M1和M2巨噬细胞极化。 制备β-TCP、CaSiO3-β-TCP和IFN-γ@ CaSiO3-β-TCP,并评估其生物相容性。流式细胞术检测巨噬细胞的极化。培养人类脐静脉内皮细胞,并在从与负载巨噬细胞支架培养基中提取的诱导基质胶条件培养中诱

Baidu
map
Baidu
map
Baidu
map