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NEJM:慢病毒基因治疗联合低剂量白消安治疗SCID-X1婴儿

2019-04-18 xing.T 网络

由此可见,慢病毒载体基因治疗结合低暴露、靶向白消安调节对新诊断的SCID-X1婴儿具有低度急性毒性作用,在中位随访16个月期间,可出现转导细胞的多系列植入,功能性T细胞和B细胞的重建以及NK细胞计数正常化。

X-连锁严重联合免疫缺陷(SCID-X1)的异基因造血干细胞移植经常无法在匹配的兄弟捐赠者获得与T细胞、B细胞和自然杀伤(NK)细胞相关的免疫力,除非接受高剂量化疗。在先前的研究中,用γ-逆转录病毒载体进行的自体基因治疗未能重建B细胞和NK细胞免疫,并且由于载体相关的白血病而使病情复杂化。

近日,顶级医学期刊NEJM上发表了一篇研究文章,研究人员在8名新诊断的SCID-X1婴儿中进行了双中心1-2期试验以评估低暴露、靶向白消安调节后,通过慢病毒载体将IL2RG互补DNA转移至骨髓干细胞的安全性和功效。

研究人员对8例SCID-X1患儿进行了随访,中位数为16.4个月。骨髓收获、白消安调节和细胞输注没有意想不到的副作用。在7名婴儿中,输注后3至4个月CD3、CD4和幼稚CD4 T细胞和NK细胞的数量正常化,并伴有T细胞、B细胞、NK细胞、骨髓细胞和骨髓祖细胞中的载体标记 。第八名婴儿最初的T细胞计数不足,但在没有白消安调节的基因校正细胞增强后,T细胞在这个婴儿中发育。所有婴儿以前的感染均清除,并且所有婴儿都继续正常生长。 8名婴儿中有7名IgM水平正常化,其中4名患者停用静脉注射免疫球蛋白;这四个婴儿中有三个对疫苗有反应。对7名婴儿进行了载体插入位点分析,发生在所有7名患者中没有克隆优势的多克隆模式。

由此可见,慢病毒载体基因治疗结合低暴露、靶向白消安调节对新诊断的SCID-X1婴儿具有低度急性毒性作用,在中位随访16个月期间,可出现转导细胞的多系列植入,功能性T细胞和B细胞的重建以及NK细胞计数正常化。 

原始出处:

Ewelina Mamcarz,et al.Lentiviral Gene Therapy Combined with Low-Dose Busulfan in Infants with SCID-X1.NEJM.2019.https://www.nejm.org/doi/full/10.1056/NEJMoa1815408

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    2020-01-30 wfang545
  2. [GetPortalCommentsPageByObjectIdResponse(id=1793689, encodeId=c1051e9368944, content=<a href='/topic/show?id=30461599e76' target=_blank style='color:#2F92EE;'>#SCID-X1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15997, encryptionId=30461599e76, topicName=SCID-X1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cfa576, createdName=wfang545, createdTime=Thu Jan 30 17:04:00 CST 2020, time=2020-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1991609, encodeId=7eb419916094c, content=<a href='/topic/show?id=f88a4e047f' target=_blank style='color:#2F92EE;'>#CID#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4704, encryptionId=f88a4e047f, topicName=CID)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=570f404, createdName=xlxchina, createdTime=Mon Dec 23 06:04:00 CST 2019, time=2019-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1978056, encodeId=834819e805683, content=<a href='/topic/show?id=e05b1599608' target=_blank style='color:#2F92EE;'>#SCID#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15996, encryptionId=e05b1599608, topicName=SCID)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=xugumin, createdTime=Mon Mar 09 19:04:00 CST 2020, time=2020-03-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401548, encodeId=5c521401548e5, content=<a href='/topic/show?id=b9c853e521b' target=_blank style='color:#2F92EE;'>#慢病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53752, encryptionId=b9c853e521b, topicName=慢病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c9bf2348479, createdName=ymljack, createdTime=Sat Apr 20 00:04:00 CST 2019, time=2019-04-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480543, encodeId=138f14805431e, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Sat Apr 20 00:04:00 CST 2019, time=2019-04-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1034793, encodeId=6fe01034e9387, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Thu Apr 18 12:04:00 CST 2019, time=2019-04-18, status=1, ipAttribution=)]
    2019-12-23 xlxchina
  3. [GetPortalCommentsPageByObjectIdResponse(id=1793689, encodeId=c1051e9368944, content=<a href='/topic/show?id=30461599e76' target=_blank style='color:#2F92EE;'>#SCID-X1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15997, encryptionId=30461599e76, topicName=SCID-X1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cfa576, createdName=wfang545, createdTime=Thu Jan 30 17:04:00 CST 2020, time=2020-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1991609, encodeId=7eb419916094c, content=<a href='/topic/show?id=f88a4e047f' target=_blank style='color:#2F92EE;'>#CID#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4704, encryptionId=f88a4e047f, topicName=CID)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=570f404, createdName=xlxchina, createdTime=Mon Dec 23 06:04:00 CST 2019, time=2019-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1978056, encodeId=834819e805683, content=<a href='/topic/show?id=e05b1599608' target=_blank style='color:#2F92EE;'>#SCID#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15996, encryptionId=e05b1599608, topicName=SCID)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=xugumin, createdTime=Mon Mar 09 19:04:00 CST 2020, time=2020-03-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401548, encodeId=5c521401548e5, content=<a href='/topic/show?id=b9c853e521b' target=_blank style='color:#2F92EE;'>#慢病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53752, encryptionId=b9c853e521b, topicName=慢病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c9bf2348479, createdName=ymljack, createdTime=Sat Apr 20 00:04:00 CST 2019, time=2019-04-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480543, encodeId=138f14805431e, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Sat Apr 20 00:04:00 CST 2019, time=2019-04-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1034793, encodeId=6fe01034e9387, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Thu Apr 18 12:04:00 CST 2019, time=2019-04-18, status=1, ipAttribution=)]
    2020-03-09 xugumin
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    2019-04-20 ymljack
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    2019-04-18 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

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