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Immunity:科学家发现导致自身免疫疾病关键基因

2015-05-15 佚名 生物谷

近日,来自美国的科学家发现一个基因能够调节T细胞选择过程,为了解免疫系统如何错误识别自身组织作为攻击目标提供了深入见解。这项研究发表在国际学术期刊immunity。   Clec16a是一个与多种自身免疫紊乱有关的基因,其中包括1型糖尿病,多发性硬化,系统性红斑狼疮,乳糜泻,克罗恩病,青铜色皮肤病,原发性胆汁性肝硬化,类风湿性关节炎,幼年特发性关节炎以及非瘢痕性脱发,虽然有遗传学

近日,来自美国的科学家发现一个基因能够调节T细胞选择过程,为了解免疫系统如何错误识别自身组织作为攻击目标提供了深入见解。这项研究发表在国际学术期刊immunity。
 
Clec16a是一个与多种自身免疫紊乱有关的基因,其中包括1型糖尿病,多发性硬化,系统性红斑狼疮,乳糜泻,克罗恩病,青铜色皮肤病,原发性胆汁性肝硬化,类风湿性关节炎,幼年特发性关节炎以及非瘢痕性脱发,虽然有遗传学证据表明Clec16a对于自身免疫发育具有重要作用,但该基因与自身免疫性疾病的广泛性联系仍未建立。
 
在该项研究中,研究人员构建了Clec16a敲低的非肥胖1型糖尿病小鼠模型,利用该模型进行研究发现Clec16a的沉默能够抑制自身免疫性疾病的发生,而这种保护作用主要由于敲低Clec16a影响胸腺上皮细胞的自噬过程导致T细胞选择发生变化所导致的。
 
有研究表明Clec16a是参与自噬过程的一个重要基因,自噬在几乎所有细胞中都存在,特别是当细胞受到病毒感染或处于饥饿状态,自噬便会发生。但胸腺上皮细胞发生的自噬与其他细胞不同,其自噬过程的发生并非受到应激刺激或营养匮乏,胸腺上皮细胞主要利用自噬过程将蛋白递呈给未成熟T细胞以进行T细胞选择,而Clec16a对于胸腺上皮细胞的自噬过程具有重要调节作用,敲低Clec16a导致胸腺上皮细胞不能正常进行自噬,从而改变了T细胞选择过程,避免了自身免疫性疾病的发生。
 
这项研究用1型糖尿病小鼠模型证明了Clec16a基因在调节自身免疫性疾病发生中的重要作用,对于自身免疫性疾病机制研究以及开发治疗方法具有重要意义。

原始出处:

Cornelia Schuster3, Kay D. Gerold3, Kilian Schober, Lilli Probst, Kevin Boerner, Mi-Jeong Kim, Anna Ruckdeschel, Thomas Serwold, Stephan Kissler.The Autoimmunity-Associated Gene CLEC16A Modulates Thymic Epithelial Cell Autophagy and Alters T Cell Selection.Immunity, May 12, 2015.DOI: http://dx.doi.org/10.1016/j.immuni.2015.04.011

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  5. [GetPortalCommentsPageByObjectIdResponse(id=1986854, encodeId=63571986854fe, content=<a href='/topic/show?id=d92e301e1a2' target=_blank style='color:#2F92EE;'>#关键基因#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30171, encryptionId=d92e301e1a2, topicName=关键基因)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec9955, createdName=windight, createdTime=Thu Aug 27 00:04:00 CST 2015, time=2015-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802265, encodeId=2f4d1802265fc, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Thu Apr 21 21:04:00 CST 2016, time=2016-04-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810776, encodeId=b7751810e764c, content=<a href='/topic/show?id=f51a8635118' target=_blank style='color:#2F92EE;'>#自身免疫疾#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86351, encryptionId=f51a8635118, topicName=自身免疫疾)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7f52347, createdName=soongzhihua, createdTime=Mon Nov 23 05:04:00 CST 2015, time=2015-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2030297, encodeId=a256203029e8a, content=<a href='/topic/show?id=25079e7287' target=_blank style='color:#2F92EE;'>#Immunity#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9772, encryptionId=25079e7287, topicName=Immunity)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/C4Qhy5XHSe503Qbjzc1UtDR83BCv66o6P2XRedX9ohsNGa3uEVicFFk2qkuX5zBSmpicepFySBrwoYknhqMdKmtw/132, createdBy=1aca2500179, createdName=12498d2fm51(暂无昵称), createdTime=Mon Jun 08 02:04:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26566, encodeId=e2272656652, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=160, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:19:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23888, encodeId=5d99238884c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:56:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1511214, encodeId=cc561511214c5, content=<a href='/topic/show?id=3f922910088' target=_blank style='color:#2F92EE;'>#免疫疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29100, encryptionId=3f922910088, topicName=免疫疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8a3610309283, createdName=晓辰, createdTime=Sun May 17 00:04:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1587069, encodeId=3d69158e0699d, content=<a href='/topic/show?id=6c1786352c6' target=_blank style='color:#2F92EE;'>#自身免疫疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86352, encryptionId=6c1786352c6, topicName=自身免疫疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=bc0d17427282, createdName=gao_jian4223, createdTime=Sun May 17 00:04:00 CST 2015, time=2015-05-17, status=1, ipAttribution=)]
    2015-06-09 18619c0a62m

    参考参考。

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1986854, encodeId=63571986854fe, content=<a href='/topic/show?id=d92e301e1a2' target=_blank style='color:#2F92EE;'>#关键基因#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30171, encryptionId=d92e301e1a2, topicName=关键基因)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec9955, createdName=windight, createdTime=Thu Aug 27 00:04:00 CST 2015, time=2015-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802265, encodeId=2f4d1802265fc, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Thu Apr 21 21:04:00 CST 2016, time=2016-04-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810776, encodeId=b7751810e764c, content=<a href='/topic/show?id=f51a8635118' target=_blank style='color:#2F92EE;'>#自身免疫疾#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86351, encryptionId=f51a8635118, topicName=自身免疫疾)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7f52347, createdName=soongzhihua, createdTime=Mon Nov 23 05:04:00 CST 2015, time=2015-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2030297, encodeId=a256203029e8a, content=<a href='/topic/show?id=25079e7287' target=_blank style='color:#2F92EE;'>#Immunity#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9772, encryptionId=25079e7287, topicName=Immunity)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/C4Qhy5XHSe503Qbjzc1UtDR83BCv66o6P2XRedX9ohsNGa3uEVicFFk2qkuX5zBSmpicepFySBrwoYknhqMdKmtw/132, createdBy=1aca2500179, createdName=12498d2fm51(暂无昵称), createdTime=Mon Jun 08 02:04:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26566, encodeId=e2272656652, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=160, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:19:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23888, encodeId=5d99238884c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:56:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1511214, encodeId=cc561511214c5, content=<a href='/topic/show?id=3f922910088' target=_blank style='color:#2F92EE;'>#免疫疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29100, encryptionId=3f922910088, topicName=免疫疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8a3610309283, createdName=晓辰, createdTime=Sun May 17 00:04:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1587069, encodeId=3d69158e0699d, content=<a href='/topic/show?id=6c1786352c6' target=_blank style='color:#2F92EE;'>#自身免疫疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86352, encryptionId=6c1786352c6, topicName=自身免疫疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=bc0d17427282, createdName=gao_jian4223, createdTime=Sun May 17 00:04:00 CST 2015, time=2015-05-17, status=1, ipAttribution=)]
    2015-05-17 huaxipanxing

    看看

    0

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