Stem Cells Int:PDGF-BB可增强BMSC的成骨和血管生成能力促进骨再生

2020-05-29 MedSci原创 MedSci原创

骨组织的再生医学主要取决于内源性或外源性干细胞的有效募集,以指导骨再生。血小板衍生生长因子(PDGF)是一种功能因子,已广泛用于组织再生和修复。然而,PDGF的半衰期短限制了它的功效,仍需要阐明PDG

骨组织的再生医学主要取决于内源性或外源性干细胞的有效募集,以指导骨再生。血小板衍生生长因子(PDGF)是一种功能因子,已广泛用于组织再生和修复。然而,PDGF的半衰期短限制了它的功效,仍需要阐明PDGF调节基于干细胞的骨再生的机制。

 

在这项研究中,我们使用慢病毒载体建立了基因修饰的过表达PDGF-B的骨髓基质细胞(BMSC),然后探讨了PDGF-BB调节基于BMSC的血管化骨再生的机制。

 

结果表明,PDGF-BB通过细胞外信号相关激酶1/2(ERK1 / 2)信号通路增加了成骨细胞分化,但抑制了BMSCs的成脂分化。此外,分泌的PDGF-BB通过磷脂酰肌醇3激酶(PI3K)/ AKT和ERK1 / 2信号通路显著增强了人脐静脉内皮细胞(HUVEC)的迁移和血管生成。我们使用临界大小的大鼠颅骨缺损模型评估了PDGF-B修饰的BMSC对骨再生的影响。X线,显微CT和组织学分析表明,PDGF-BB的过表达改善了骨再生过程中BMSC介导的血管生成和成骨作用。

 

总之,这些结果表明,PDGF-BB通过增强BMSC的成骨和血管生成能力来促进基于BMSC的骨再生。

 

原始出处:

 

Maolin ZhangWenwen Yu, et al., The Effects of Platelet-Derived Growth Factor-BB on Bone Marrow Stromal Cell-Mediated Vascularized Bone Regeneration. Stem Cells Int. 2018 Oct 31;2018:3272098. doi: 10.1155/2018/3272098. 

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objectType=article, channel=null, level=null, likeNumber=41, 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 May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1378678, encodeId=603d13e86787e, content=<a href='/topic/show?id=f238358866' target=_blank style='color:#2F92EE;'>#BMS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3588, encryptionId=f238358866, topicName=BMS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=512d422, createdName=canlab, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1406748, encodeId=ad411406e48ec, content=<a 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authenticateStatus=null, createdAvatar=, createdBy=a4cf7208806, createdName=lsj630, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1482300, encodeId=5859148230038, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d1067833268, createdName=12498bb3m92(暂无昵称), createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=2069254, encodeId=436e2069254c8, content=<a href='/topic/show?id=7a7135902d' target=_blank style='color:#2F92EE;'>#BMSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3590, encryptionId=7a7135902d, topicName=BMSC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=909c71, createdName=shijzhiewnjhch, createdTime=Mon Aug 24 04:19:50 CST 2020, time=2020-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1871786, encodeId=594918e1786ee, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Wed Dec 09 07:19:50 CST 2020, time=2020-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794729, encodeId=3a611e94729ca, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sat Oct 31 04:19:50 CST 2020, time=2020-10-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794980, encodeId=ada81e94980ed, content=<a href='/topic/show?id=46e716e82a6' target=_blank style='color:#2F92EE;'>#stem cells#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, 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objectType=article, channel=null, level=null, likeNumber=41, 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 May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1378678, encodeId=603d13e86787e, content=<a href='/topic/show?id=f238358866' target=_blank style='color:#2F92EE;'>#BMS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3588, encryptionId=f238358866, topicName=BMS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=512d422, createdName=canlab, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1406748, encodeId=ad411406e48ec, content=<a href='/topic/show?id=099d122e1cd' target=_blank style='color:#2F92EE;'>#MSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12271, encryptionId=099d122e1cd, topicName=MSC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epVh4QoCj2A7xBBEjh8q7ia2BsLkylnuQ15ia2MDzvr28XR0CVvBPpFXTlB1mprG7WgBb06gvn4Eia5Q/132, createdBy=55e02571190, createdName=huanbaofeng, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472215, encodeId=55dd14e2215f7, 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=47, 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=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1482300, encodeId=5859148230038, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d1067833268, createdName=12498bb3m92(暂无昵称), createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=)]
    2020-12-13 维他命
  6. [GetPortalCommentsPageByObjectIdResponse(id=2069254, encodeId=436e2069254c8, content=<a href='/topic/show?id=7a7135902d' target=_blank style='color:#2F92EE;'>#BMSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3590, encryptionId=7a7135902d, topicName=BMSC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=909c71, createdName=shijzhiewnjhch, createdTime=Mon Aug 24 04:19:50 CST 2020, time=2020-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1871786, encodeId=594918e1786ee, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, 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href='/topic/show?id=099d122e1cd' target=_blank style='color:#2F92EE;'>#MSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12271, encryptionId=099d122e1cd, topicName=MSC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epVh4QoCj2A7xBBEjh8q7ia2BsLkylnuQ15ia2MDzvr28XR0CVvBPpFXTlB1mprG7WgBb06gvn4Eia5Q/132, createdBy=55e02571190, createdName=huanbaofeng, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1472215, encodeId=55dd14e2215f7, 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=47, 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=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1482300, encodeId=5859148230038, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d1067833268, createdName=12498bb3m92(暂无昵称), createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=)]
    2020-05-31 zhaojie88
  7. 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authenticateStatus=null, createdAvatar=, createdBy=a4cf7208806, createdName=lsj630, createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1482300, encodeId=5859148230038, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d1067833268, createdName=12498bb3m92(暂无昵称), createdTime=Sun May 31 04:19:50 CST 2020, time=2020-05-31, status=1, ipAttribution=)]
    2020-05-31 canlab
  8. 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    2020-05-31 huanbaofeng
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    2020-05-31 lsj630
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组织的再生能力与肿瘤的发生有密切的相关性,但其中的机制一直不能被解释。研究人员通过对果蝇肠上皮不同类型的细胞表达谱的比较,发现了一个在未分化细胞中特异表达的转录因子Sox21a. 用制备的抗体染色发现Sox21a 在将要分化的细胞中的表达有个明显的上调。通过CRISPR/Cas9基因组编辑技术,研究人员得到了Sox21a基因敲除果蝇,并惊奇地发现突变的果蝇在出生1-2周后即产生大量肠道肿瘤。进一步

J Periodontal Res:PIN1或可促进牙周组织的再生

虽然研究已经表明骨组织中可表达肽酰脯氨酰顺/反异构酶(PIN1),但是PIN1在牙周组织和细胞中的确切作用目前尚不清楚。 本研究旨在阐明PIN1在牙周组织中的作用,在牙周组织和细胞中的表达,对体外培养成骨细胞分化的影响,并探究其潜在的信号转导机制。 结果显示,PIN1成功的在小鼠牙周组织(包括牙周膜细胞(PDLC)、成牙骨质细胞以及成骨细胞)中表达。靶向PIN1抑制剂胡桃醌并通过RNA

Gut:吗啡导致急性胰腺炎恶化并阻碍组织再生

吗啡治疗会加重急性胰腺癌症状,延缓疾病缓解与组织再生。根据这一研究结果,吗啡镇痛在急性胰腺炎治疗过程中的安全性应该在未来的临床研究中重新评估

J Periodontal Res:一种新型的促进成纤维细胞迁移的细胞胶原基膜

生长因子经常被加入支架中用以促进牙周再生,但是许多目前使用的支架不支持细胞向龈牙结合处迁移。本实验检测了人牙龈成纤维细胞在载有纤连蛋白(FN)和/或胰岛素样生长因子(IGF-I)的新型,物理稳定的胶原-Vicryl TM膜中的增殖和迁移。并在大鼠背部皮肤中评估膜的生物相容性。