The HIV-1 env protein: a coat of many colors.

The HIV-1 env protein: a coat of many colors.
复制标题

DOI:
10.1007/s11904-011-0107-3
复制
发表时间:
2012-03
影响因子:
4.6
通讯作者:
Swanstrom, Ronald
Swanstrom, Ronald
中科院分区:
医学2区
文献类型:
--
作者:
Arrildt, Kathryn Twigg;Joseph, Sarah Beth;Swanstrom, Ronald

文献摘要

参考文献

被引文献

相似文献

人类免疫缺陷病毒1型(HIV-1)完全依赖Env蛋白进入细胞。由于病毒需要进入CCR5辅助受体和CD4受体的高表面水平,病毒通常在活化的CD4+ T细胞中复制。这是传播病毒的情况,也是血液样本中大多数病毒的情况。在感染过程中,env基因可以进化为编码一种受体和辅助受体使用改变的蛋白质,从而使病毒进入其他宿主细胞。在大约50%的HIV-1感染中,病毒群体经历了辅助受体转换,通常在疾病晚期,允许病毒使用CXCR4进入CD4+ T细胞的不同亚群。约10%的感染发生神经认知障碍,通常也发生在疾病晚期,但(最终)是由大脑中CD4+ T细胞或巨噬细胞和/或小胶质细胞中的病毒复制引起的。宿主范围的扩大与发病机制密切相关。这些HIV-1变异的鉴定和表征可能有助于早期检测,从而允许干预以减少这些替代细胞类型中的病毒发病机制。
Human immunodeficiency virus type 1 (HIV-1) is completely dependent upon the Env protein to enter cells. The virus typically replicates in activated CD4+ T cells due to viral entry requirements for the CCR5 coreceptor and for high surface levels of the CD4 receptor. This is the case for the transmitted virus and for most of the virus sampled in the blood. Over the course of infection, the env gene can evolve to encode a protein with altered receptor and coreceptor usage allowing the virus to enter alternative host cells. In about 50% of HIV-1 infections, the viral population undergoes coreceptor switching, usually late in disease, allowing the virus to use CXCR4 to enter a different subset of CD4+ T cells. Neurocognitive disorders occur in about 10% of infections, also usually late in disease, but caused (ultimately) by viral replication in the brain either in CD4+ T cells or macrophage and/or microglia. Expanded host range is significantly intertwined with pathogenesis. Identification and characterization of such HIV-1 variants may be useful for early detection which would allow intervention to reduce viral pathogenesis in these alternative cell types.
DOI: 10.1128/jvi.00185-10
发表时间: 2010-09-15
影响因子: 5.4
作者:
Duenas-Decamp, Maria J.;Clapham, Paul R.
通讯作者: Clapham, Paul R.
DOI: 10.1128/jvi.02321-07
发表时间: 2008-07-01
影响因子: 5.4
作者:
Arfi, Vanessa;Riviere, Lise;Cimarelli, Andrea
通讯作者: Cimarelli, Andrea
DOI: 10.1128/jvi.02133-08
发表时间: 2009-03-15
影响因子: 5.4
作者:
Duenas-Decamp, Maria Jose;Peters, Paul J.;Clapham, Paul R.
通讯作者: Clapham, Paul R.
DOI: 10.1073/pnas.94.5.1925
发表时间: 1997-03-04
影响因子: 11.1
作者:
Bleul, CC;Wu, LJ;Mackay, CR
通讯作者: Mackay, CR
DOI: 10.1016/j.virol.2007.05.029
发表时间: 2007-10-10
期刊: VIROLOGY
影响因子: 3.7
作者:
Dunfee, Rebecca L.;Thomas, Elaine R.;Gabuzda, Dana
通讯作者: Gabuzda, Dana