Cell Death Dis:烟酰胺单核苷酸通过在老年骨髓中通过SIRT1途径调节间充质基质细胞来促进骨生成并减少脂肪生成

2019-04-23 不详 网络

间充质基质细胞(MSCs)可以分化成各种细胞类型,包括成骨细胞,软骨细胞和脂肪细胞。这种细胞灵活性有助于MSC在组织修复中的广泛临床应用。然而,对于用于干细胞疗法的MSC的有效细胞扩增仍存在挑战。目前的MSC培养方法导致MSC的自我更新减少和治疗结果受损。本研究发现,烟酰胺单核苷酸(NMN)是一种重要的天然NAD +中间体,可有效促进体外和体内MSC的扩增。体外扩增的MSCs具有增强的成骨作用,但

间充质基质细胞(MSCs)可以分化成各种细胞类型,包括成骨细胞,软骨细胞和脂肪细胞。这种细胞灵活性有助于MSC在组织修复中的广泛临床应用。然而,对于用于干细胞疗法的MSC的有效细胞扩增仍存在挑战。目前的MSC培养方法导致MSC的自我更新减少和治疗结果受损。

本研究发现,烟酰胺单核苷酸(NMN)是一种重要的天然NAD +中间体,可有效促进体外和体内MSC的扩增。体外扩增的MSCs具有增强的成骨作用,但减少了脂肪生成。此外,NMN补充刺激内源性MSC的成骨,并保护骨免受衰老和辐射诱导的小鼠损伤。在机制上,我们发现NMN治疗上调了SIRT1。通过使用Prx1 cre在MSC中基因过表达SIRT1; ColA1flox-stop-flox-SIRT1小鼠促进老年小鼠的成骨和减少脂肪形成。

总体而言,我们的数据表明,NMN通过在老年小鼠中上调SIRT1来促进MSC自我更新,增强骨生成和减少脂肪形成。

原始出处:

Song J, Li J, et al., Nicotinamide mononucleotide promotes osteogenesis and reduces adipogenesis by regulating mesenchymal stromal cells via the SIRT1 pathway in aged bone marrow. Cell Death Dis. 2019 Apr 18;10(5):336. doi: 10.1038/s41419-019-1569-2.

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    2020-01-23 维他命
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    2019-12-05 xsm918
  6. [GetPortalCommentsPageByObjectIdResponse(id=1757168, encodeId=2bca1e571683e, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, 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=Sun Oct 06 13:03:00 CST 2019, time=2019-10-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1871239, encodeId=aa9818e12391e, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Oct 14 20:03:00 CST 2019, time=2019-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1961519, encodeId=3a491961519bf, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Jan 23 00:03:00 CST 2020, time=2020-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012992, encodeId=5dd120129921d, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Thu Aug 22 20:03:00 CST 2019, time=2019-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1945636, encodeId=0547194563630, content=<a href='/topic/show?id=a9fa62150e8' target=_blank style='color:#2F92EE;'>#核苷酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62150, encryptionId=a9fa62150e8, topicName=核苷酸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=49cf452, createdName=xsm918, createdTime=Thu Dec 05 02:03:00 CST 2019, time=2019-12-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531468, encodeId=fd5b1531468df, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Thu Apr 25 07:03:00 CST 2019, time=2019-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551929, encodeId=2acc1551929ec, content=<a href='/topic/show?id=0cb91634355' target=_blank style='color:#2F92EE;'>#sirt1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16343, encryptionId=0cb91634355, topicName=sirt1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Thu Apr 25 07:03:00 CST 2019, time=2019-04-25, status=1, ipAttribution=)]
    2019-04-25 cy0328
  7. [GetPortalCommentsPageByObjectIdResponse(id=1757168, encodeId=2bca1e571683e, content=<a href='/topic/show?id=103b421e0e8' target=_blank style='color:#2F92EE;'>#基质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, 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=Sun Oct 06 13:03:00 CST 2019, time=2019-10-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1871239, encodeId=aa9818e12391e, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Oct 14 20:03:00 CST 2019, time=2019-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1961519, encodeId=3a491961519bf, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Jan 23 00:03:00 CST 2020, time=2020-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012992, encodeId=5dd120129921d, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Thu Aug 22 20:03:00 CST 2019, time=2019-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1945636, encodeId=0547194563630, content=<a href='/topic/show?id=a9fa62150e8' target=_blank style='color:#2F92EE;'>#核苷酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62150, encryptionId=a9fa62150e8, topicName=核苷酸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=49cf452, createdName=xsm918, createdTime=Thu Dec 05 02:03:00 CST 2019, time=2019-12-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531468, encodeId=fd5b1531468df, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Thu Apr 25 07:03:00 CST 2019, time=2019-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551929, encodeId=2acc1551929ec, content=<a href='/topic/show?id=0cb91634355' target=_blank style='color:#2F92EE;'>#sirt1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16343, encryptionId=0cb91634355, topicName=sirt1)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Thu Apr 25 07:03:00 CST 2019, time=2019-04-25, status=1, ipAttribution=)]
    2019-04-25 quxin068