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Front Endocrinol:晚期糖基化预处理的间充质基质细胞衍生的外泌体可抑制血管平滑肌细胞的钙化

2018-10-11 MedSci MedSci原创

血管平滑肌细胞(VSMCs)的成骨分化对于血管钙化(VC)的发展是重要的,特别是在糖尿病中。间充质基质细胞(MSCs)外泌体对心血管疾病有效,但它们在VC中的作用仍不清楚。晚期糖基化终产物(AGEs)通过靶向骨生成相关基因来抑制骨髓基质细胞的成骨。因此,我们研究了来自用AGEs-BSA预处理的MSCs外泌体在VC中的作用及其潜在机制。 分别从Sprague-Dawley大鼠的主动脉和骨髓中分

血管平滑肌细胞(VSMCs)的成骨分化对于血管钙化(VC)的发展是重要的,特别是在糖尿病中。间充质基质细胞(MSCs)外泌体对心血管疾病有效,但它们在VC中的作用仍不清楚。晚期糖基化终产物(AGEs)通过靶向骨生成相关基因来抑制骨髓基质细胞的成骨。因此,我们研究了来自用AGEs-BSA预处理的MSCs外泌体在VC中的作用及其潜在机制。

分别从Sprague-Dawley大鼠的主动脉和骨髓中分离原代VSMCs和MSCs。使用AGEs-BSA培养VSMCs以诱导成骨分化。通过超速离心从MSCs中收获外泌体。将MSCs和VSMCs在Transwells中共培养,并将外泌体添加到VSMCs培养基中以评估它们对成骨分化的影响。使用双荧光素酶报告基因测定以证实miR-146a直接靶向硫氧还蛋白相互作用蛋白(TXNIP)基因的3'UTR。

结果显示,AGEs-BSA预处理VSMCs通过抑制miR-146a的表达增加硫氧还蛋白相互作用蛋白(TXNIP)的表达,导致ROS产生增加和VSMC钙化。相比之下,AGEs-BSA处理增加了MSCs中miR-146a的表达。因此,miR-146a通过外泌体从AGEs-BSA预处理的或miR-146a转染的MSCs转移至VSMCs。与含有miR-146a的外泌体共培养后,AGEs-BSA介导的VSMC钙化增加减少,伴随着TXNIP表达和ROS产生减少。此外,TXNIP过表达抵消了MSC衍生的含miR-146a的外泌体的抗钙化作用。此外,TXNIP被鉴定为miR-146a的靶基因,双荧光素酶报告基因测定结果证实TXNIP是miR-146a的直接靶基因。

综上所述,该研究结果表明,由AGEs-BSA预处理的MSCs分泌的外泌体含有高水平的miR-146a,转移至VSMCs后并以TXNIP依赖性方式抑制AGEs-BSA诱导的钙化。因此,含有miR-146a的外泌体可能是VC的潜在治疗靶标。

原始出处:

Wang Y, Ma WQ, et al., Exosomes Derived From Mesenchymal Stromal Cells Pretreated With Advanced Glycation End Product-Bovine Serum Albumin Inhibit Calcification of Vascular Smooth Muscle Cells. Front Endocrinol (Lausanne). 2018 Sep 21;9:524. doi: 10.3389/fendo.2018.00524. eCollection 2018.

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  5. [GetPortalCommentsPageByObjectIdResponse(id=2028557, encodeId=e036202855eb3, content=<a href='/topic/show?id=35da896260d' target=_blank style='color:#2F92EE;'>#血管平滑肌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89626, encryptionId=35da896260d, topicName=血管平滑肌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=236b481, createdName=anan, createdTime=Sat Dec 08 06:52:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1981292, encodeId=42071981292fd, content=<a href='/topic/show?id=c20f488e7cd' target=_blank style='color:#2F92EE;'>#平滑肌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=148, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=48877, encryptionId=c20f488e7cd, topicName=平滑肌细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Thu Jan 31 14:52:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1691708, encodeId=32471691e08f3, content=<a href='/topic/show?id=8ed9488e37e' target=_blank style='color:#2F92EE;'>#平滑肌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=48873, encryptionId=8ed9488e37e, topicName=平滑肌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a5d29283334, createdName=shijzhiewnjhch, createdTime=Fri Apr 26 00:52:00 CST 2019, time=2019-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757130, encodeId=257b1e57130ac, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, 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=Tue Jun 11 12:52:00 CST 2019, time=2019-06-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1318304, encodeId=9ee11318304aa, content=<a href='/topic/show?id=b5dde6644b1' target=_blank style='color:#2F92EE;'>#糖基化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76644, encryptionId=b5dde6644b1, topicName=糖基化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=43cb463, createdName=lfyang, createdTime=Sat Oct 13 13:52:00 CST 2018, time=2018-10-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1604536, encodeId=060b16045363e, content=<a href='/topic/show?id=d6928962ec2' target=_blank style='color:#2F92EE;'>#血管平滑肌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89627, encryptionId=d6928962ec2, topicName=血管平滑肌细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=329e19217698, createdName=xiay994459, createdTime=Sat Oct 13 13:52:00 CST 2018, time=2018-10-13, status=1, ipAttribution=)]
    2018-10-13 lfyang
  6. [GetPortalCommentsPageByObjectIdResponse(id=2028557, encodeId=e036202855eb3, content=<a href='/topic/show?id=35da896260d' target=_blank style='color:#2F92EE;'>#血管平滑肌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89626, encryptionId=35da896260d, topicName=血管平滑肌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=236b481, createdName=anan, createdTime=Sat Dec 08 06:52:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1981292, encodeId=42071981292fd, content=<a href='/topic/show?id=c20f488e7cd' target=_blank style='color:#2F92EE;'>#平滑肌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=148, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=48877, encryptionId=c20f488e7cd, topicName=平滑肌细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Thu Jan 31 14:52:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1691708, encodeId=32471691e08f3, content=<a href='/topic/show?id=8ed9488e37e' target=_blank style='color:#2F92EE;'>#平滑肌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=48873, encryptionId=8ed9488e37e, topicName=平滑肌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a5d29283334, createdName=shijzhiewnjhch, createdTime=Fri Apr 26 00:52:00 CST 2019, time=2019-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1757130, encodeId=257b1e57130ac, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, 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=Tue Jun 11 12:52:00 CST 2019, time=2019-06-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1318304, encodeId=9ee11318304aa, content=<a href='/topic/show?id=b5dde6644b1' target=_blank style='color:#2F92EE;'>#糖基化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76644, encryptionId=b5dde6644b1, topicName=糖基化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=43cb463, createdName=lfyang, createdTime=Sat Oct 13 13:52:00 CST 2018, time=2018-10-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1604536, encodeId=060b16045363e, content=<a href='/topic/show?id=d6928962ec2' target=_blank style='color:#2F92EE;'>#血管平滑肌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89627, encryptionId=d6928962ec2, topicName=血管平滑肌细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=329e19217698, createdName=xiay994459, createdTime=Sat Oct 13 13:52:00 CST 2018, time=2018-10-13, status=1, ipAttribution=)]
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