Baidu
map

JCI:重大发现!HIV不光以T细胞为靶点,还会靶向作用巨噬细胞

2016-03-11 佚名 不详

图片来源:medicalxpress.com 发表于国际杂志Journal of Clinical Investigation上的一项研究论文中,来自北卡罗来纳州大学医学院的研究人员通过研究发现,HIV可以感染巨噬细胞并在巨噬细胞内进行繁殖,巨噬细胞是机体肝脏、大脑和结缔组织中的一种大型白细胞,该研究发现或可帮助开发治疗HIV感染的新型疗法。 巨噬细胞可以摄入外源性的物质,包括受感染的C

图片来源:medicalxpress.com

发表于国际杂志Journal of Clinical Investigation上的一项研究论文中,来自北卡罗来纳州大学医学院的研究人员通过研究发现,HIV可以感染巨噬细胞并在巨噬细胞内进行繁殖,巨噬细胞是机体肝脏、大脑和结缔组织中的一种大型白细胞,该研究发现或可帮助开发治疗HIV感染的新型疗法。

巨噬细胞可以摄入外源性的物质,包括受感染的CD4 T细胞,此前很多研究发现,巨噬细胞可以在摄入受损伤的CD4 T细胞后被感染,通过研究没有T细胞的小型动物模型机体的HIV,即细胞足以被HIV感染,研究者发现,HIV感染的巨噬细胞可以证实巨噬细胞热带型HIV菌株的存在,同时病毒还可以自主在巨噬细胞中进行复制。

研究者Joseph Eron博士指出,本文研究明确阐明了巨噬细胞可以作为HIV病毒的复制场所,巨噬细胞是一种髓系细胞,文章中为了确定是否组织中的巨噬细胞可以被HIV感染繁殖,研究者利用一种人源化的髓系小鼠模型进行研究,结果发现,在T细胞不存在的情况下,巨噬细胞可以维持HIV病毒的复制,而HIV感染的巨噬细胞可以分布在机体多个组织中,比如大脑等。具有复制潜能的病毒可以通过来自模型中感染的巨噬细胞来募集,同时受感染的巨噬细胞也可以在新的宿主中建立新型的感染,相关研究结果表明,巨噬细胞或许可以作为HIV感染的真正靶点来维持并且传递这种感染。

如果T细胞是HIV治疗研究中唯一的靶点的话,那么根除病毒似乎并不太可能,如今研究者发现了HIV靶向作用的另一类靶点细胞,这就为有效清理HIV患者的病毒并且开发治疗艾滋病的新型疗法提供了新的思路。如今研究者已经阐明HIV可以靶向作用巨噬细胞并且在巨噬细胞内进行复制,下一步他们将会将抗逆转录病毒疗法引入到模型中来观察是否病毒可以在疗法存在的情况继续进行繁殖。

最后研究者Jenna Bone Honeycutt博士说道,新型模型可以帮助我们提出很多关键问题,比如巨噬细胞是否可以作为患者抗逆转录病毒疗法后的HIV存储库,当然这还需要研究者们进行后期更为深入的研究来进一步阐明其中的机制。

原始出处:

Honeycutt JB, Wahl A, Baker C, Spagnuolo RA, Foster J, Zakharova O, Wietgrefe S, Caro-Vegas C, Madden V, Sharpe G, Haase AT, Eron JJ, Garcia JV.Macrophages sustain HIV replication in vivo independently of T cells. J Clin Invest. 2016 Mar 7. pii: 84456

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=1945439, encodeId=bf20194543990, content=<a href='/topic/show?id=41ef95e62c5' target=_blank style='color:#2F92EE;'>#重大发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95762, encryptionId=41ef95e62c5, topicName=重大发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Sat Sep 24 07:15:00 CST 2016, time=2016-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1982021, encodeId=91d01982021ab, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Fri Feb 10 00:15:00 CST 2017, time=2017-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1950751, encodeId=39631950e514c, content=<a href='/topic/show?id=9b0c99894af' target=_blank style='color:#2F92EE;'>#靶向作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99894, encryptionId=9b0c99894af, topicName=靶向作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Sat Jan 14 11:15:00 CST 2017, time=2017-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68848, encodeId=70d76884891, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68849, encodeId=b00968849be, content=应该是哪来的方向, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1945439, encodeId=bf20194543990, content=<a href='/topic/show?id=41ef95e62c5' target=_blank style='color:#2F92EE;'>#重大发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95762, encryptionId=41ef95e62c5, topicName=重大发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Sat Sep 24 07:15:00 CST 2016, time=2016-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1982021, encodeId=91d01982021ab, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Fri Feb 10 00:15:00 CST 2017, time=2017-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1950751, encodeId=39631950e514c, content=<a href='/topic/show?id=9b0c99894af' target=_blank style='color:#2F92EE;'>#靶向作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99894, encryptionId=9b0c99894af, topicName=靶向作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Sat Jan 14 11:15:00 CST 2017, time=2017-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68848, encodeId=70d76884891, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68849, encodeId=b00968849be, content=应该是哪来的方向, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1945439, encodeId=bf20194543990, content=<a href='/topic/show?id=41ef95e62c5' target=_blank style='color:#2F92EE;'>#重大发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95762, encryptionId=41ef95e62c5, topicName=重大发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Sat Sep 24 07:15:00 CST 2016, time=2016-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1982021, encodeId=91d01982021ab, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Fri Feb 10 00:15:00 CST 2017, time=2017-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1950751, encodeId=39631950e514c, content=<a href='/topic/show?id=9b0c99894af' target=_blank style='color:#2F92EE;'>#靶向作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99894, encryptionId=9b0c99894af, topicName=靶向作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Sat Jan 14 11:15:00 CST 2017, time=2017-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68848, encodeId=70d76884891, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68849, encodeId=b00968849be, content=应该是哪来的方向, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1945439, encodeId=bf20194543990, content=<a href='/topic/show?id=41ef95e62c5' target=_blank style='color:#2F92EE;'>#重大发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95762, encryptionId=41ef95e62c5, topicName=重大发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Sat Sep 24 07:15:00 CST 2016, time=2016-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1982021, encodeId=91d01982021ab, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Fri Feb 10 00:15:00 CST 2017, time=2017-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1950751, encodeId=39631950e514c, content=<a href='/topic/show?id=9b0c99894af' target=_blank style='color:#2F92EE;'>#靶向作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99894, encryptionId=9b0c99894af, topicName=靶向作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Sat Jan 14 11:15:00 CST 2017, time=2017-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68848, encodeId=70d76884891, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68849, encodeId=b00968849be, content=应该是哪来的方向, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=)]
    2016-03-14 古天乐

    厉害

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1945439, encodeId=bf20194543990, content=<a href='/topic/show?id=41ef95e62c5' target=_blank style='color:#2F92EE;'>#重大发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95762, encryptionId=41ef95e62c5, topicName=重大发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6393434, createdName=ailian1202, createdTime=Sat Sep 24 07:15:00 CST 2016, time=2016-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1982021, encodeId=91d01982021ab, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Fri Feb 10 00:15:00 CST 2017, time=2017-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1950751, encodeId=39631950e514c, content=<a href='/topic/show?id=9b0c99894af' target=_blank style='color:#2F92EE;'>#靶向作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99894, encryptionId=9b0c99894af, topicName=靶向作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Sat Jan 14 11:15:00 CST 2017, time=2017-01-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68848, encodeId=70d76884891, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=68849, encodeId=b00968849be, content=应该是哪来的方向, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160314/IMG56E64D2A545669487.jpg, createdBy=4ff71699844, createdName=古天乐, createdTime=Mon Mar 14 01:29:00 CST 2016, time=2016-03-14, status=1, ipAttribution=)]
    2016-03-14 古天乐

    应该是哪来的方向

    0

相关资讯

J Virol:肠道微生物群落如何影响HIV进展

图片摘自:www.scientificamerican.com HIV或许是一种肠道疾病,这种概念容易让我们忽视该病因性传播和血液传播的特性,而实际上HIV感染并且杀灭的是CD4+细胞,而大约三分之二的T细胞都位于肠道中的淋巴组织中,在那里HIV就会繁殖扩散。近年来对血液的研究得到了越来越多科学家们的关注,因为血液可以在全身不断循环,而肠道似乎难以到达,研究者们仅能够通过侵入性的方法来对其进

JAMA:比较几种检测HIV急性感染方法的性能

人类免疫缺陷病毒(human immunodeficiency virus, HIV),即艾滋病病毒,是一种感染人类免疫系统细胞造成人类免疫系统缺陷的慢病毒,属逆转录病毒的一种。2015年3月4日,多国科学家就已发现,艾滋病毒已知的4种毒株(M型、N型、O型和P型),均来自喀麦隆的黑猩猩及大猩猩,是人类首次完全确定艾滋病毒毒株的所有源头。 图片来自:感染免疫细胞的HIV(黄色),图片来自Se

世界首例HIV阳性的人体间器官移植

约翰霍普斯金医学院接到了将HIV阳性患者的肝脏和肾脏移植到另一位HIV阳性患者中的许可,并声称当捐赠者和接受者都到位时可以立刻进行手术。

Lancet infect dis:HIV合并HCV感染的负担(全球性meta分析)

原始出处:Lucy Platt,Philippa Easterbrook,et al, Prevalence and burden of HCV co-infection in people living with HIV: a global systematic review and meta-analysis,lancet infect disease,24 February 2016http

NEJM:使用阴道环能够有效阻止HIV感染

注入抗病毒药物的阴道环似乎提供抗HIV感染的保护,然而在此之前,没有那么多医生能够预测得到这一点。 在第一项新的临床试验中,研究人员发现,相比服用安慰剂的女性而言,使用这种阴道环的女性感染 HIV的风险下降了27%。第二项独立的临床试验也有类似的结果:发现31%的下降。这两项临床试验都是在马萨诸塞州波士顿市举行的逆转录病毒和机会性感染年度会议上报道的。 这些由国际研究小组开展的临床试验以HIV

Science:HIV重大突破!史上详细HIV包膜三维结构出炉!

这项研究首次解析出HIV Env三聚体处于自然状态下的高分辨率结构图,其中HIV利用Env三聚体侵入宿主细胞。图片来自The Scripps Research Institute。 2016年3月6日/生物谷BIOON/--在一项新的研究中,来自美国斯克里普斯研究所(The Scripps Research Institute, TSRI)的研究人员解析出负责识别和感染宿主细胞的HIV蛋白的高

Baidu
map
Baidu
map
Baidu
map