防止骨髓和器官移植物排斥的新理论

2017-01-25 MedSci MedSci原创

使用总淋巴放射和抗T细胞抗体的组合可以安全地诱导人体中造血细胞和器官同种异体移植物的免疫耐受。宿主自然杀伤T(NKT)细胞通常依赖于来自CD8+树突状细胞(DC)的信号激活,近期,一项发表在Blood杂志上的研究使用小鼠模型检测了在淋巴照射后,宿主CD8+DC细胞通过与NKT细胞的相互作用发挥耐受诱导中必不可少的作用。CD8+DCs或NKT细胞的选择性缺乏消除嵌合体和器官移植接受。在照射后,CD8

使用总淋巴放射和抗T细胞抗体的组合可以安全地诱导人体中造血细胞和器官同种异体移植物的免疫耐受。


宿主自然杀伤T(NKT)细胞通常依赖于来自CD8+树突状细胞(DC)的信号激活,近期,一项发表在Blood杂志上的研究使用小鼠模型检测了在淋巴照射后,宿主CD8+DC细胞通过与NKT细胞的相互作用发挥耐受诱导中必不可少的作用。

CD8+DCs或NKT细胞的选择性缺乏消除嵌合体和器官移植接受。在照射后,CD8+DCs增加NKT和凋亡细胞相互作用所需的表面分子的表达,并且产生抑制性免疫功能,包括吲哚胺2,3-脱氧酶(IDO)的产生。

将照射凋亡的脾细胞注射入野生型小鼠中导致DC发生的变化与那些放射淋巴产生的变化相似,这表示CD8+DCs摄入的凋亡小体启动免疫耐受诱导。

耐受性CD8+DC诱导耐受性NKT细胞的发育,其具有显着的Th2偏差,其继而调节DC的分化和抑制移植物的排斥。

因此,CD8+DCs和iNKT细胞之间的相互作用在该系统中的耐受诱导是必需的。

原始出处:

Hongo D, Tang X, Zhang X, Engleman EG, Strober S. Tolerogenic interactions between CD8+ dendritic cells and NKT cells prevent rejection of bone marrow and organ grafts.Blood. 2017 Jan 17. pii: blood-2016-07-723015.

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1745220, encodeId=52d31e452208e, content=<a href='/topic/show?id=bdc262694bb' target=_blank style='color:#2F92EE;'>#植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62694, encryptionId=bdc262694bb, topicName=植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6a5e35527958, createdName=xuyong535, createdTime=Tue Oct 24 14:41:00 CST 2017, time=2017-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=173700, encodeId=56ff1e3700b0, content=现在临床上对肾移植患者有应用淋巴照射吗, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/11/25/6ca5d7e6dfcfb65989e82c0e88b3fa05.jpg, createdBy=dc3a1928741, createdName=wanting Shen, createdTime=Thu Feb 02 02:02:06 CST 2017, time=2017-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262972, encodeId=791412629e264, content=<a href='/topic/show?id=3c0f56643cd' target=_blank style='color:#2F92EE;'>#排斥#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56643, encryptionId=3c0f56643cd, topicName=排斥)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=947269, createdName=lvygwyt2781, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1620687, encodeId=3a3b162068eed, content=<a href='/topic/show?id=c0c9e520310' target=_blank style='color:#2F92EE;'>#移植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75203, encryptionId=c0c9e520310, topicName=移植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=153620156575, createdName=10518100zz, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=172649, encodeId=b72f1e264907, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Thu Jan 26 08:46:39 CST 2017, time=2017-01-26, status=1, ipAttribution=)]
    2017-10-24 xuyong535
  2. [GetPortalCommentsPageByObjectIdResponse(id=1745220, encodeId=52d31e452208e, content=<a href='/topic/show?id=bdc262694bb' target=_blank style='color:#2F92EE;'>#植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62694, encryptionId=bdc262694bb, topicName=植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6a5e35527958, createdName=xuyong535, createdTime=Tue Oct 24 14:41:00 CST 2017, time=2017-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=173700, encodeId=56ff1e3700b0, content=现在临床上对肾移植患者有应用淋巴照射吗, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/11/25/6ca5d7e6dfcfb65989e82c0e88b3fa05.jpg, createdBy=dc3a1928741, createdName=wanting Shen, createdTime=Thu Feb 02 02:02:06 CST 2017, time=2017-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262972, encodeId=791412629e264, content=<a href='/topic/show?id=3c0f56643cd' target=_blank style='color:#2F92EE;'>#排斥#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56643, encryptionId=3c0f56643cd, topicName=排斥)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=947269, createdName=lvygwyt2781, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1620687, encodeId=3a3b162068eed, content=<a href='/topic/show?id=c0c9e520310' target=_blank style='color:#2F92EE;'>#移植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75203, encryptionId=c0c9e520310, topicName=移植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=153620156575, createdName=10518100zz, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=172649, encodeId=b72f1e264907, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Thu Jan 26 08:46:39 CST 2017, time=2017-01-26, status=1, ipAttribution=)]
    2017-02-02 wanting Shen

    现在临床上对肾移植患者有应用淋巴照射吗

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1745220, encodeId=52d31e452208e, content=<a href='/topic/show?id=bdc262694bb' target=_blank style='color:#2F92EE;'>#植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62694, encryptionId=bdc262694bb, topicName=植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6a5e35527958, createdName=xuyong535, createdTime=Tue Oct 24 14:41:00 CST 2017, time=2017-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=173700, encodeId=56ff1e3700b0, content=现在临床上对肾移植患者有应用淋巴照射吗, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/11/25/6ca5d7e6dfcfb65989e82c0e88b3fa05.jpg, createdBy=dc3a1928741, createdName=wanting Shen, createdTime=Thu Feb 02 02:02:06 CST 2017, time=2017-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262972, encodeId=791412629e264, content=<a href='/topic/show?id=3c0f56643cd' target=_blank style='color:#2F92EE;'>#排斥#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56643, encryptionId=3c0f56643cd, topicName=排斥)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=947269, createdName=lvygwyt2781, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1620687, encodeId=3a3b162068eed, content=<a href='/topic/show?id=c0c9e520310' target=_blank style='color:#2F92EE;'>#移植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75203, encryptionId=c0c9e520310, topicName=移植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=153620156575, createdName=10518100zz, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=172649, encodeId=b72f1e264907, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Thu Jan 26 08:46:39 CST 2017, time=2017-01-26, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1745220, encodeId=52d31e452208e, content=<a href='/topic/show?id=bdc262694bb' target=_blank style='color:#2F92EE;'>#植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62694, encryptionId=bdc262694bb, topicName=植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6a5e35527958, createdName=xuyong535, createdTime=Tue Oct 24 14:41:00 CST 2017, time=2017-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=173700, encodeId=56ff1e3700b0, content=现在临床上对肾移植患者有应用淋巴照射吗, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/11/25/6ca5d7e6dfcfb65989e82c0e88b3fa05.jpg, createdBy=dc3a1928741, createdName=wanting Shen, createdTime=Thu Feb 02 02:02:06 CST 2017, time=2017-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262972, encodeId=791412629e264, content=<a href='/topic/show?id=3c0f56643cd' target=_blank style='color:#2F92EE;'>#排斥#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56643, encryptionId=3c0f56643cd, topicName=排斥)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=947269, createdName=lvygwyt2781, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1620687, encodeId=3a3b162068eed, content=<a href='/topic/show?id=c0c9e520310' target=_blank style='color:#2F92EE;'>#移植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75203, encryptionId=c0c9e520310, topicName=移植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=153620156575, createdName=10518100zz, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=172649, encodeId=b72f1e264907, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Thu Jan 26 08:46:39 CST 2017, time=2017-01-26, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1745220, encodeId=52d31e452208e, content=<a href='/topic/show?id=bdc262694bb' target=_blank style='color:#2F92EE;'>#植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62694, encryptionId=bdc262694bb, topicName=植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6a5e35527958, createdName=xuyong535, createdTime=Tue Oct 24 14:41:00 CST 2017, time=2017-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=173700, encodeId=56ff1e3700b0, content=现在临床上对肾移植患者有应用淋巴照射吗, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/11/25/6ca5d7e6dfcfb65989e82c0e88b3fa05.jpg, createdBy=dc3a1928741, createdName=wanting Shen, createdTime=Thu Feb 02 02:02:06 CST 2017, time=2017-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1262972, encodeId=791412629e264, content=<a href='/topic/show?id=3c0f56643cd' target=_blank style='color:#2F92EE;'>#排斥#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56643, encryptionId=3c0f56643cd, topicName=排斥)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=947269, createdName=lvygwyt2781, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1620687, encodeId=3a3b162068eed, content=<a href='/topic/show?id=c0c9e520310' target=_blank style='color:#2F92EE;'>#移植物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75203, encryptionId=c0c9e520310, topicName=移植物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=153620156575, createdName=10518100zz, createdTime=Fri Jan 27 04:41:00 CST 2017, time=2017-01-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=172649, encodeId=b72f1e264907, content=收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Thu Jan 26 08:46:39 CST 2017, time=2017-01-26, status=1, ipAttribution=)]
    2017-01-26 Jackie Li

    收藏

    0

相关资讯

J Immunol:利用人胚胎干细胞生成DC抗肿瘤

    近日,新加坡生物工程与纳米技术研究所开展的一项研究利用人类胚胎干细胞(胚胎干细胞)生成树突状细胞(DC)来刺激免疫系统来抗肿瘤,该新方法可能是一个更经济方式来生成抗癌症的治疗性疫苗。     树突状细胞提呈刺激免疫应答的抗原物质,以刺激免疫系统的其他细胞消除致病细胞。DCs的这种能力使得树突状细胞是疫苗在体内的理想选择作用靶细胞

J Immunol:STAT2调节树突状细胞交叉呈递

树突状细胞的交叉呈递效应"cross-presentation"能够激活CD8 T细胞抵抗胞内的外源微生物以及并不感染树突状细胞的其它微生物。此外,交叉呈递作用还能够有效激活抗肿瘤T细胞免疫反应。外源微生物特有的分子结构是激活DC的主要元素,激活后的DC能够提高其交叉呈递的效率。 此前研究发现,TLR信号引起的DC的交叉呈递效应依赖于MyD88以及I型干扰素。MyD88能够介导NF-KB的

树突状细胞阻断而非促进采用新佐剂的幽门螺杆菌免疫

来源:医学论坛网   最近,瑞士学者Iris Hitzler等研究发现,在使用分枝杆菌作为佐剂的幽门螺杆菌(H pylori)疫苗肠外免疫中,树突状细胞起阻断而非促进作用。相关内容发表于《胃肠病学》(Gastroenterology)杂志。   针对胃H pylori的免疫可以预防多种胃癌和其他类型的疾病。在临床前模型中使用的接种疫苗的流程,并不适合于人体。新的佐剂以及对疫苗诱导保护作用的更好

Immunity:免疫树突状细胞囊泡转运的“地图”,揭示抗菌的机制

近日,第三军医大学科研部生物医学分析测试中心教授万瑛和美国杜克大学免疫学者合作的一项研究,揭开了树突状细胞如何通过蛋白质相互作用完成细胞内囊泡转运以及抗原细胞如何“激活”免疫应答的奥秘。 国际权威期刊《免疫学》(Immunity)杂志刊登了这项研究成果。该研究获得了国家自然科学基金海外及港澳学者研究基金(31028007)、面上项目(31470857)等资助。万瑛表示,正是科学基金对海外及港澳学

Nature:树突状细胞分子刹车在抗肿瘤免疫中的作用

在小鼠的卵巢癌模型中,激活树突状细胞的应激反应和转录因子XBP1,能抑制树突状细胞抗肿瘤免疫的作用。 肿瘤微环境中的细胞时刻暴露于各种刺激之下。这部分可归因于缺氧和缺乏营养导致的内质网功能失常。内质网是负责蛋白质折叠的细胞器。内质网功能失调后,细胞内错误折叠蛋白堆积——也就是所谓的内质网应激。癌症细胞通过内质网应激能从缺氧缺营养的环境中生存下来。科学家们目前仍不清楚,这条通路是否影响肿瘤微

Science:中国院士连发两篇《科学》文章

日前,《科学》Science杂志上分别刊登了来自中国学者的两篇文章。来自来自第二军医大学、中国医学科学院和浙江大学医学院的曹雪涛(Xuetao Cao)院士等人首发现一种名为 lnc-DC 的长链非编码 RNA 控制了人类树突状细胞的分化;而来自中科院微生物研究所高福则发表了一篇社论,谈到了关闭活禽市场的必要性。 在第一项研究中,来自第二军医大学、中国医学科学院和浙江大学医学院的研究人员,发