J Neuroinflammation:间充质干细胞治疗可减轻小鼠脑缺血后的血脑屏障渗漏

2018-05-18 MedSci MedSci原创

缺血性中风引起基质金属蛋白酶-9(MMP-9)上调,增加了血脑屏障的通透性。研究表明,间充质干细胞疗法可防止几种脑血管疾病引起的血脑屏障破坏。然而,其基本机制尚未完全明了。研究假设间充质干细胞通过抑制基质金属蛋白酶-9而降低血脑屏障破坏,并且其与细胞间粘附分子-1(ICAM-1)有关。 选取成年ICR雄性小鼠(n = 118)接受90分钟大脑中动脉闭塞并接受2×105间充质干细胞移植。在缺血

缺血性中风引起基质金属蛋白酶-9(MMP-9)上调,增加了血脑屏障的通透性。研究表明,间充质干细胞疗法可防止几种脑血管疾病引起的血脑屏障破坏。然而,其基本机制尚未完全明了。研究假设间充质干细胞通过抑制基质金属蛋白酶-9而降低血脑屏障破坏,并且其与细胞间粘附分子-1(ICAM-1)有关。

选取成年ICR雄性小鼠(n = 118)接受90分钟大脑中动脉闭塞并接受2×105间充质干细胞移植。在缺血后测量神经行为结果、梗塞体积和血脑屏障通透性。进一步确定髓过氧化物酶(MPO)活性和ICAM-1释放之间的关系。

结果发现,颅内注射间充质干细胞可减少实验性卒中模型的梗塞体积并改善行为功能(p <0.05)。与缺血后对照组相比,间充质干细胞处理的小鼠的IgG渗漏、紧密连接蛋白丧失和炎性细胞因子IL-1β、IL-6和TNF-α的水平降低(p <0.05)。移植后,与对照相比,MMP-9蛋白和活性水平下降(p <0.05)。此外,间充质干细胞处理的小鼠中髓过氧化物酶阳性细胞和髓过氧化物酶活性降低(p <0.05)。

结果表明,间充质干细胞疗法减轻了缺血后小鼠的血脑屏障破坏。间充质干细胞减弱了MMP-9的上升趋势,并潜在地通过下调内皮细胞中的ICAM-1。腺苷5'-单磷酸(AMP)活化蛋白激酶(AMPK)通路或可影响嗜中性粒细胞和驻留细胞MMP-9的表达,而ICAM-1是间充质干细胞旁分泌作用的关键因子。

原始出处:

Zhuo Cheng, Liping Wang, et al., Mesenchymal stem cells attenuate blood-brain barrier leakage after cerebral ischemia in mice. J Neuroinflammation. 2018; 15: 135. doi:  10.1186/s12974-018-1153-1

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    2018-08-08 lxg951
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    2018-05-20 xiaoyeshuang
  6. [GetPortalCommentsPageByObjectIdResponse(id=1815319, encodeId=2d901815319f1, 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=26, 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=Fri Jun 01 13:21:00 CST 2018, time=2018-06-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2057627, encodeId=765a205e627c0, content=<a href='/topic/show?id=c02b106e29a' target=_blank style='color:#2F92EE;'>#LAM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10672, encryptionId=c02b106e29a, topicName=LAM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04ce158, createdName=lxg951, createdTime=Wed Aug 08 10:21:00 CST 2018, time=2018-08-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262341, encodeId=6e88126234137, content=<a href='/topic/show?id=ff3c89946de' target=_blank style='color:#2F92EE;'>#血脑屏障#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89946, encryptionId=ff3c89946de, topicName=血脑屏障)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=68b666, createdName=zhangying8788, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1289219, encodeId=b3a41289219b7, content=<a href='/topic/show?id=cd268500578' target=_blank style='color:#2F92EE;'>#脑缺血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85005, encryptionId=cd268500578, topicName=脑缺血)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=845e216, createdName=cqlidoudou, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1454833, encodeId=b5e3145483363, content=<a href='/topic/show?id=ca5f12e51d4' target=_blank style='color:#2F92EE;'>#NFL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12751, encryptionId=ca5f12e51d4, topicName=NFL)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=90805606164, createdName=xiaoyeshuang, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1545556, encodeId=bb1b15455568f, content=<a href='/topic/show?id=7c4c984645' target=_blank style='color:#2F92EE;'>#inflammation#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9846, encryptionId=7c4c984645, topicName=inflammation)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ffd513772211, createdName=ms6980045490879608, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=316357, encodeId=f4fd31635e01, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, 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=Fri May 18 16:23:15 CST 2018, time=2018-05-18, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1815319, encodeId=2d901815319f1, 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=26, 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=Fri Jun 01 13:21:00 CST 2018, time=2018-06-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2057627, encodeId=765a205e627c0, content=<a href='/topic/show?id=c02b106e29a' target=_blank style='color:#2F92EE;'>#LAM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10672, encryptionId=c02b106e29a, topicName=LAM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04ce158, createdName=lxg951, createdTime=Wed Aug 08 10:21:00 CST 2018, time=2018-08-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262341, encodeId=6e88126234137, content=<a href='/topic/show?id=ff3c89946de' target=_blank style='color:#2F92EE;'>#血脑屏障#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89946, encryptionId=ff3c89946de, topicName=血脑屏障)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=68b666, createdName=zhangying8788, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1289219, encodeId=b3a41289219b7, content=<a href='/topic/show?id=cd268500578' target=_blank style='color:#2F92EE;'>#脑缺血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85005, encryptionId=cd268500578, topicName=脑缺血)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=845e216, createdName=cqlidoudou, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1454833, encodeId=b5e3145483363, content=<a href='/topic/show?id=ca5f12e51d4' target=_blank style='color:#2F92EE;'>#NFL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12751, encryptionId=ca5f12e51d4, topicName=NFL)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=90805606164, createdName=xiaoyeshuang, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1545556, encodeId=bb1b15455568f, content=<a href='/topic/show?id=7c4c984645' target=_blank style='color:#2F92EE;'>#inflammation#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9846, encryptionId=7c4c984645, topicName=inflammation)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ffd513772211, createdName=ms6980045490879608, createdTime=Sun May 20 06:21:00 CST 2018, time=2018-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=316357, encodeId=f4fd31635e01, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, 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=Fri May 18 16:23:15 CST 2018, time=2018-05-18, status=1, ipAttribution=)]
    2018-05-18 天地飞扬

    了解一下.谢谢分享!

    0