NATURE:T细胞是如何介导流产和妊娠期糖尿病的?

2020-12-26 haibei MedSci原创

胸腺Rank的缺失也会导致Treg细胞在内脏脂肪组织中的积累受损,并与脂肪细胞增大、组织炎症、母体葡萄糖不耐受性增强、胎儿大头症和葡萄糖平衡的长期改变有关,这些都是妊娠期糖尿病的关键标志。

在怀孕期间,性激素有助于帮助孕妈妈的生理适应,并保障胎儿发育。在女性性激素的控制下,NF-κB配体的受体激活剂(RANK)及其配体RANKL可以调节骨重塑和哺乳期乳腺的发育。在胸腺中,RANK信号调节AIRE-和CD80表达的髓质胸腺上皮细胞(mTECs)的成熟,进一步参与自然胸腺Treg细胞的发育。因此,研究人员推测,在怀孕期间RANK可以介导重要的胸腺适应过程。

最近,研究人员在Nature杂志发文,报导破骨细胞分化受体RANK耦合女性性激素,在怀孕期间的胸腺重新分布。胸腺上皮细胞中Rank(也称为Tnfrsf11a)的遗传性缺失导致胸腺内卷受损和自然调节性T(Treg)细胞在怀孕雌性小鼠中钝化扩张。
性激素,尤其是孕激素,通过RANK驱动胸腺Treg细胞的发育,该过程依赖于AIRE+髓质胸腺上皮细胞。

鼠胸腺上皮细胞中Rank的耗竭可以导致胎盘中天然Treg细胞积累减少,流产数量增加。胸腺Rank的缺失也会导致Treg细胞在内脏脂肪组织中的积累受损,并与脂肪细胞增大、组织炎症、母体葡萄糖不耐受性增强、胎儿大头症和葡萄糖平衡的长期改变有关,这些都是妊娠期糖尿病的关键标志。
Treg细胞的移植可以治疗流产、母体葡萄糖不耐受和巨婴的发生。
在人类妊娠中,研究人员也发现妊娠糖尿病与胎盘中Treg细胞数量减少有关。
因此,该研究结果表明,RANK在妊娠期间促进了激素介导的胸腺Treg细胞的发育,并将母体Treg细胞的功能作用扩展到妊娠糖尿病的发生和葡萄糖稳态的跨代代谢重配。

 

原始出处:
Magdalena Paolino et al. RANK links thymic regulatory T cells to fetal loss and gestational diabetes in pregnancy. NATURE 2020.

 

 

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    2021-02-25 liye789132251
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    2020-12-29 Jessica

    妊娠期糖尿病

    0

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    2020-12-27 医路顺丰

    很好的文章,学习了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1884866, encodeId=951f18848663c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Feb 25 20:19:42 CST 2021, time=2021-02-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=911986, encodeId=8cf991198687, content=妊娠期糖尿病, beContent=null, objectType=article, channel=null, level=null, likeNumber=174, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211019/df01a4bfb64246379ddfef3370d04115/e1274c8eb5e440918f56f83bcfea9031.jpg, createdBy=3a345397082, createdName=Jessica, createdTime=Tue Dec 29 22:13:14 CST 2020, time=2020-12-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1251267, encodeId=9060125126e94, content=<a href='/topic/show?id=90494486837' target=_blank style='color:#2F92EE;'>#妊娠期#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44868, encryptionId=90494486837, topicName=妊娠期)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Mon Dec 28 11:19:42 CST 2020, time=2020-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1253666, encodeId=40cd1253666a1, content=<a href='/topic/show?id=9d5d44888a9' target=_blank style='color:#2F92EE;'>#妊娠期糖尿病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44888, encryptionId=9d5d44888a9, topicName=妊娠期糖尿病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a9de34, createdName=shenxlcyp, createdTime=Mon Dec 28 11:19:42 CST 2020, time=2020-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=911450, encodeId=c1a4911450e6, content=很好的文章,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=162, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201226/95ac6d022b194200b46211c8dd67d7d4/d7639abce33d42f18edacbf9c1818b2b.jpg, createdBy=1c242248512, createdName=医路顺丰, createdTime=Sun Dec 27 22:40:30 CST 2020, time=2020-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043438, encodeId=3462104343856, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Sat Dec 26 23:19:42 CST 2020, time=2020-12-26, status=1, ipAttribution=)]
    2020-12-26 misszhang

    谢谢MedSci提供最新的资讯

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