24小时热门版块排行榜    

查看: 607  |  回复: 9

linglingchen

铁虫 (小有名气)


[交流] Science:注射强力抗体抑制血液中HIV病毒

12月23日,来自美国NIH的科学家们在国际学术期刊上发表了一项最新研究进展,他们报告称注射一种叫做VRC01的强效抗体就能够抑制未接受抗逆转录病毒治疗的HIV携带者血液中的HIV病毒水平。研究人员还发现通过静脉注射或皮下注射方式将VRC01抗体注入病毒携带者体内具有非常好的安全性和耐受性,并且注入的抗体能够在病人血液中保持较长时间。
Virologic effects of broadly neutralizing antibody VRC01 administration during chronic HIV-1 infection
http://stm.sciencemag.org/content/7/319/319ra206

Passive aggression for HIV

Antibodies that neutralize HIV could add to the therapeutic arsenal to prevent and treat disease. Lynch et al. have now tested one such antibody—VRC01—in HIV-infected individuals. Although little difference was observed in viral reservoir in individuals on antiretroviral therapy, plasma viremia was reduced in untreated subjects with a single infusion of VRC01, preferentially suppressing neutralization-sensitive strains. Passive immunization with neutralizing antibodies could therefore aid in viral suppression in HIV-infected individuals.
Abstract

Passive immunization with HIV-1–neutralizing monoclonal antibodies (mAbs) is being considered for prevention and treatment of HIV-1 infection. As therapeutic agents, mAbs could be used to suppress active virus replication, maintain suppression induced by antiretroviral therapy (ART), and/or decrease the size of the persistent virus reservoir. We assessed the impact of VRC01, a potent human mAb targeting the HIV-1 CD4 binding site, on ART-treated and untreated HIV-1–infected subjects. Among six ART-treated individuals with undetectable plasma viremia, two infusions of VRC01 did not reduce the peripheral blood cell–associated virus reservoir measured 4 weeks after the second infusion. In contrast, six of eight ART-untreated, viremic subjects infused with a single dose of VRC01 experienced a 1.1 to 1.8 log10 reduction in plasma viremia. The two subjects with minimal responses to VRC01 were found to have predominantly VRC01-resistant virus before treatment. Notably, two subjects with plasma virus load <1000 copies/ml demonstrated virus suppression to undetectable levels for over 20 days until VRC01 levels declined. Among the remaining four subjects with baseline virus loads between 3000 and 30,000 copies, viremia was only partially suppressed by mAb infusion, and we observed strong selection pressure for the outgrowth of less neutralization-sensitive viruses. In summary, a single infusion of mAb VRC01 significantly decreased plasma viremia and preferentially suppressed neutralization-sensitive virus strains. These data demonstrate the virological effect of this neutralizing antibody and highlight the need for combination strategies to maintain virus suppression.
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

» 抢金币啦!回帖就可以得到:

查看全部散金贴

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

大susu

铁虫 (小有名气)


安全性和耐受性,已经进入临床后期了么?
9楼2016-01-10 22:44:07
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

ttshi2013

新虫 (初入文坛)



小木虫: 金币+0.5, 给个红包,谢谢回帖
Science上的文章,前沿性还是不错的。
10楼2016-01-15 11:20:45
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
jiantu2楼
2015-12-29 10:31   回复  
linglingchen(金币+1): 谢谢参与
liangbk3楼
2015-12-29 11:05   回复  
linglingchen(金币+1): 谢谢参与
bit_14楼
2015-12-29 11:30   回复  
linglingchen(金币+1): 谢谢参与
tan9145楼
2015-12-29 12:10   回复  
linglingchen(金币+1): 谢谢参与
tan9146楼
2015-12-29 12:13   回复  
psylhh7楼
2015-12-29 12:14   回复  
linglingchen(金币+1): 谢谢参与
2015-12-30 09:12   回复  
相关版块跳转 我要订阅楼主 linglingchen 的主题更新
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 材料080500调剂求收留 +8 一颗meteor 2026-03-13 8/400 2026-03-20 20:00 by zhukairuo
[考研] 086500 325 求调剂 +3 领带小熊 2026-03-19 3/150 2026-03-20 18:38 by 尽舜尧1
[考博] 招收博士1-2人 +3 QGZDSYS 2026-03-18 3/150 2026-03-20 11:58 by 呱呱呱呱叫
[考研] 286分人工智能专业请求调剂愿意跨考! +3 lemonzzn 2026-03-17 4/200 2026-03-20 11:04 by lemonzzn
[考研] 271材料工程求调剂 +7 .6lL 2026-03-18 7/350 2026-03-20 09:10 by xingguangj
[考研] 0703化学调剂 +10 妮妮ninicgb 2026-03-15 14/700 2026-03-19 22:59 by 学员8dgXkO
[考研] 294求调剂材料与化工专硕 +14 陌の森林 2026-03-18 14/700 2026-03-19 22:38 by 学员8dgXkO
[考研] 一志愿天津大学化学工艺专业(081702)315分求调剂 +11 yangfz 2026-03-17 11/550 2026-03-19 15:06 by houyaoxu
[考研] 一志愿福大288有机化学,求调剂 +3 小木虫200408204 2026-03-18 3/150 2026-03-19 13:31 by houyaoxu
[考研] 085600材料与化工求调剂 +6 绪幸与子 2026-03-17 6/300 2026-03-19 13:27 by houyaoxu
[考研] 材料考研调剂 +3 xwt。 2026-03-19 3/150 2026-03-19 11:22 by w沐阳w
[考研] 一志愿中海洋材料工程专硕330分求调剂 +7 小材化本科 2026-03-18 7/350 2026-03-19 10:46 by Linda Hu
[考研] 328求调剂,英语六级551,有科研经历 +3 生物工程调剂 2026-03-17 7/350 2026-03-18 20:41 by Wangjingyue
[考研] 302求调剂 +10 呼呼呼。。。。 2026-03-17 10/500 2026-03-18 12:45 by Linda Hu
[考研] 299求调剂 +5 △小透明* 2026-03-17 5/250 2026-03-18 11:49 by 尽舜尧1
[考研] 301求调剂 +9 yy要上岸呀 2026-03-17 9/450 2026-03-18 08:58 by 无际的草原
[考研] 277调剂 +5 自由煎饼果子 2026-03-16 6/300 2026-03-17 19:26 by 李leezz
[考研] 301求调剂 +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[考研] 277材料科学与工程080500求调剂 +3 自由煎饼果子 2026-03-16 3/150 2026-03-16 14:10 by 运气yunqi
[考研] 0856求调剂 +3 刘梦微 2026-03-15 3/150 2026-03-16 10:00 by houyaoxu
信息提示
请填处理意见