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Arch Oral Biol:缺氧为何会影响间充质干细胞的成骨

2019-09-03 不详 网络

本研究旨在探讨大麻素受体2(CB2)在缺氧条件下对骨髓间充质干细胞(BMSCs)成骨的作用。从Sprague-Dawley大鼠分离BMSC并在氯化钴(CoCl 2)存在下培养以诱导细胞内缺氧。用MTT测定法测量细胞增殖。应用定量实时PCR和蛋白质印迹法评估CB2的mRNA和蛋白表达以及骨钙素,RUNX2,胶原-1和osterix(SP7)等成骨指标。通过ALP测定和茜素红S(ARS)染色进一步检查

本研究旨在探讨大麻素受体2(CB2)在缺氧条件下对骨髓间充质干细胞(BMSCs)成骨的作用。

从Sprague-Dawley大鼠分离BMSC并在氯化钴(CoCl 2)存在下培养以诱导细胞内缺氧。用MTT测定法测量细胞增殖。应用定量实时PCR和蛋白质印迹法评估CB2的mRNA和蛋白表达以及骨钙素,RUNX2,胶原-1和osterix(SP7)等成骨指标。通过ALP测定和茜素红S(ARS)染色进一步检查BMSC的成骨分化。此外,通过蛋白质印迹分析MAPKs信号传导通路的激活。

结果显示,CoCl2剂量依赖性地增加缺氧诱导因子,而较高浓度(200和400μM)的CoCl2显著抑制细胞增殖。CoCl2诱导的缺氧明显增加骨钙素,RUNX2,胶原-1和osterix的蛋白质和mRNA表达,以及增强的ALP和ARS染色。有趣的是,通过添加CB2抑制剂AM630可以抑制这种作用。此外,AM630部分抑制缺氧诱导的p38和ERK通路,这可能导致RUNX2,胶原蛋白-1和osterix的成骨转录物减少。

总之,该研究结果表明CoCl2诱导的缺氧可能通过CB2促进大鼠骨髓间充质干细胞的成骨。

原始出处:

Zhang M, Shi X, et al., CoCl2 induced hypoxia enhances osteogenesis of rat bone marrow mesenchymal stem cells through cannabinoid receptor 2. Arch Oral Biol. 2019 Aug 14;108:104525. doi: 10.1016/j.archoralbio.2019.104525.

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    2020-04-09 sunylz
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    2020-07-19 小几洁
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    2019-09-06 独孤立克

    干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1918838, encodeId=13f819188389d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Thu Apr 09 02:30:00 CST 2020, time=2020-04-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1815522, encodeId=40f0181552288, content=<a href='/topic/show?id=ae359e231d4' target=_blank style='color:#2F92EE;'>#间充质干细#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97231, encryptionId=ae359e231d4, topicName=间充质干细)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4b632500090, createdName=h.y200607_23674418, createdTime=Tue Feb 04 00:30:00 CST 2020, time=2020-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767690, encodeId=d4a81e67690e0, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Sat Jun 27 05:30:00 CST 2020, time=2020-06-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020606, encodeId=d46e20206062e, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Sun Jul 19 03:30:00 CST 2020, time=2020-07-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025322, encodeId=6d2710253229b, content=干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Fri Sep 06 15:30:00 CST 2019, time=2019-09-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352205, encodeId=c6681352205d5, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, 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=Thu Sep 05 06:30:00 CST 2019, time=2019-09-05, status=1, ipAttribution=)]
    2019-09-05 zhaojie88
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