Cell Death Dis:耗竭ID3可改善干燥综合征MSC疗法的效果

2020-03-19 MedSci原创 MedSci原创

干燥综合征(SS)是一种慢性的自身免疫性疾病,通常会损害外分泌腺(主要是唾液腺和泪腺)的正常功能,导致口干和眼睛干燥等症状。免疫系统的功能异常已被证明在SS的发病机制中起着至关重要的作用。

干燥综合征(SS)是一种慢性的自身免疫性疾病,通常会损害外分泌腺(主要是唾液腺和泪腺)的正常功能,导致口干和眼睛干燥等症状。免疫系统的功能异常已被证明在SS的发病机制中起着至关重要的作用。目前,SS患者的治疗方法包括类固醇及非类固醇抗炎药,它们可以缓解症状,但不能治愈该病,且长期使用这些药物会引起严重的副作用。

基于间充质干细胞(MSC)的免疫调节特性,其对于实验性及临床性自身免疫性疾病和炎症(包括SS、克罗恩病、系统性红斑狼疮和类风湿性关节炎)具有治疗作用。但是目前SS治疗的有效性仍有待提高,且其潜在机制仍然未知。因此,维持MSCs免疫调节特性或基于MSC的治疗效果的机制研究对于改善基于MSC的治疗方法至关重要。

在该研究中,研究人员发现在NOD/ShiLtJ小鼠模型(一种广泛使用的SS模型)来源的骨髓源性MSC(BMMSC)中,Id3基因的表达水平被上调,说明其在SS的发生发展及治疗过程中起着重要作用。在NOD/ShiLtJ小鼠中,Id3缺陷型BMMSC的移植比野生型BMMSC能够更有效地拯救唾液腺的功能。
 
机制研究发现ID3蛋白能够通过阻止E2A蛋白结合Bmp4基因的启动子区域负性调控BMP4的表达。反过来,BMP4又能够促进MSC产生PGE2,并增强T细胞增殖及Th1分化的抑制活性。重要的是,在SS患者来源的BMMSC中,BMP4及PGE2表达水平明显低于健康对照的。
 
以上研究结果表明,靶向Id3的治疗策略可能对于改善MSC的免疫调节及基于MSCs的SS治疗效果有积极的贡献。

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    2020-09-21 docwu2019
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  4. [GetPortalCommentsPageByObjectIdResponse(id=1871624, encodeId=322518e162476, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, 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 Jan 11 21:05:50 CST 2021, time=2021-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1961917, encodeId=fa8b196191e89, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Mon Sep 21 16:05:50 CST 2020, time=2020-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2013231, encodeId=2f9d2013231fd, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sun Aug 23 01:05:50 CST 2020, time=2020-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1406747, encodeId=7e831406e474d, content=<a href='/topic/show?id=099d122e1cd' target=_blank style='color:#2F92EE;'>#MSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, 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=Sat Mar 21 13:05:50 CST 2020, time=2020-03-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1431790, encodeId=233a1431e904c, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sat Mar 21 13:05:50 CST 2020, time=2020-03-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531552, encodeId=46e615315520a, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, 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=Sat Mar 21 13:05:50 CST 2020, time=2020-03-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1615300, encodeId=bf7b161530014, content=<a href='/topic/show?id=fb53939251' target=_blank style='color:#2F92EE;'>#ID3#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9392, encryptionId=fb53939251, topicName=ID3)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=939919593249, createdName=夏天与十三菇凉, createdTime=Sat Mar 21 13:05:50 CST 2020, time=2020-03-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1047021, encodeId=1d1f104e021c9, content=疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Fri Mar 20 01:05:50 CST 2020, time=2020-03-20, status=1, ipAttribution=)]
    2020-03-21 huanbaofeng
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    2020-03-21 cy0328
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    2020-03-20 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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