Cell Reports:重磅!科学家首次证实HIV病毒“藏身之处”,将会消除体内艾滋病毒

2017-10-20 白木清水 来宝网

在长达几十年的寻找艾滋病毒的游戏过程中,来自悉尼韦斯特米德医学研究所的科学家们首次证实了,第一次将免疫记忆中的感染性HIV隐藏在人体内的特异性免疫记忆T细胞,逃避免疫系统的检测。

在长达几十年的寻找艾滋病毒的游戏过程中,来自悉尼韦斯特米德医学研究所的科学家们首次证实了,第一次将免疫记忆中的感染性HIV隐藏在人体内的特异性免疫记忆T细胞,逃避免疫系统的检测

由悉尼大学的副教授萨拉·帕尔默(Sarah Palmer)领导的研究小组开发了一种开创性的基因测序方法,用于检测艾滋病病毒。通过这项测试,研究小组发现,基因完整的HIV病毒隐藏在CD4 + t细胞的特定单元中。

帕尔默教授说,这个新一代的测试表明,艾滋病毒隐藏在人体的免疫记忆t细胞中,这是它如何避免从免疫系统中检测出来的

“以前人们认为HIV病毒主要隐藏在中央记忆t细胞中,但我们新的艾滋病毒基因测序检测显示,大多数复制能力的病毒实际上隐藏在效应记忆t细胞中。”

“艾滋病毒真的很聪明。”本质上,它隐藏在免疫系统中的完全相同的细胞中,这是用来攻击它的,”她说。

效应记忆t细胞是“记住”之前感染的细胞和如何战胜它们的细胞。这些细胞可以为麻疹或水痘等感染提供终生免疫。

帕尔默教授解释说,只有非常小的比例——大约5%——HIV在基因上是完整的。然而,这一小部分病毒隐藏在效应记忆t细胞中,阻止免疫系统彻底摧毁病毒,并将其从体内清除。

“当艾滋病毒复制时,它会产生很多错误,并释放出许多有缺陷的病毒。”

但这5%的基因完整的艾滋病毒是关键。这种病毒将其基因组插入人体的记忆细胞,并静静地坐在那里躲避免疫系统的检测,”帕尔默教授解释说。

这些被感染的细胞进入休眠状态并停止生产HIV,但这些潜伏的细胞可以唤醒并开始制造传染性HIV。

“这是一枚定时炸弹,等待重新感染病人。”

另外95%的缺陷病毒确实会使免疫系统超负荷运转。她说:“我们怀疑这种‘垃圾’艾滋病毒可以作为诱饵,把注意力从‘真正的’病毒隐藏在效应记忆t细胞中。”

尽管在治疗艾滋病毒方面取得了突破性进展,但它仍然是全球范围内的一种慢性病。既没有治愈,也没有疫苗。

目前的艾滋病毒药物阻止了病毒的复制,但我们仍然没有办法‘治愈’艾滋病患者。”病人需要药物或化疗来度过余生。

“在发展中国家,这是一个特殊的问题,只有50%的人能够接受常规的艾滋病治疗。

“如果一个人突然停止接受他们的艾滋病毒治疗,那么隐藏在效应记忆体t细胞中的病毒将会活跃起来,并开始产生更多的HIV病毒,病毒将在两周内传遍全身。”

“既然我们已经确定了复制能力病毒的藏身之处,我们就可以开始为这些细胞提供新的治疗方法,以完全消除体内的HIV病毒,”帕默教授总结说。

原始出处:

Bonnie Hiener et al, Identification of Genetically Intact HIV-1 Proviruses in Specific CD4 + T Cells from Effectively Treated Participants, Cell Reports (2017). DOI: 10.1016/j.celrep.2017.09.081.

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    2017-12-31 维他命
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  4. [GetPortalCommentsPageByObjectIdResponse(id=1821175, encodeId=838b18211e502, content=<a href='/topic/show?id=002b10135947' target=_blank style='color:#2F92EE;'>#首次证实#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101359, encryptionId=002b10135947, topicName=首次证实)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/pSGl6CJeZ2PzWxdhCtrvv4U9Q281RV8e0AKmlB5ib93DibbiaRyOzmkCdz5F04cbfX5RGOpG4dOXvuQW1fumibVeBg/132, createdBy=fc342500110, createdName=ms9833124466084992, createdTime=Sun Nov 12 18:39:00 CST 2017, time=2017-11-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1960490, encodeId=5cc31960490c3, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Dec 31 18:39:00 CST 2017, time=2017-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1870229, encodeId=d94418e0229b6, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Fri Nov 10 02:39:00 CST 2017, time=2017-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=255791, encodeId=b145255e9119, content=学习并分享!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Wed Oct 25 07:52:03 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1412636, encodeId=5994141263606, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8922, encryptionId=32ec89220b, topicName=HIV病毒)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fa102876871, createdName=tigerlr99, createdTime=Sat Oct 21 23:39:00 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549209, encodeId=a618154920908, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Sat Oct 21 23:39:00 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254922, encodeId=313525492295, content=如果科学没有国界.科学家没有国界.再厉害的病毒又怎样?早就解决掉了, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1c6c2144166, createdName=1861ff86b0m, createdTime=Sat Oct 21 21:08:54 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254748, encodeId=f35d254e483e, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Sat Oct 21 06:34:01 CST 2017, time=2017-10-21, status=1, ipAttribution=)]
    2017-10-25 大爰

    学习并分享!!!

    0

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  6. [GetPortalCommentsPageByObjectIdResponse(id=1821175, encodeId=838b18211e502, content=<a href='/topic/show?id=002b10135947' target=_blank style='color:#2F92EE;'>#首次证实#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101359, encryptionId=002b10135947, topicName=首次证实)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/pSGl6CJeZ2PzWxdhCtrvv4U9Q281RV8e0AKmlB5ib93DibbiaRyOzmkCdz5F04cbfX5RGOpG4dOXvuQW1fumibVeBg/132, createdBy=fc342500110, createdName=ms9833124466084992, createdTime=Sun Nov 12 18:39:00 CST 2017, time=2017-11-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1960490, encodeId=5cc31960490c3, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Dec 31 18:39:00 CST 2017, time=2017-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1870229, encodeId=d94418e0229b6, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Fri Nov 10 02:39:00 CST 2017, time=2017-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=255791, encodeId=b145255e9119, content=学习并分享!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Wed Oct 25 07:52:03 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1412636, encodeId=5994141263606, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8922, encryptionId=32ec89220b, topicName=HIV病毒)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fa102876871, createdName=tigerlr99, createdTime=Sat Oct 21 23:39:00 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549209, encodeId=a618154920908, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Sat Oct 21 23:39:00 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254922, encodeId=313525492295, content=如果科学没有国界.科学家没有国界.再厉害的病毒又怎样?早就解决掉了, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1c6c2144166, createdName=1861ff86b0m, createdTime=Sat Oct 21 21:08:54 CST 2017, time=2017-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254748, encodeId=f35d254e483e, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Sat Oct 21 06:34:01 CST 2017, time=2017-10-21, status=1, ipAttribution=)]
    2017-10-21 xxxx1054
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    2017-10-21 1861ff86b0m

    如果科学没有国界.科学家没有国界.再厉害的病毒又怎样?早就解决掉了

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    2017-10-21 1dd8c52fm63(暂无匿称)

    学习学习.了解了解

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