AIDS Vaccine Research Laboratory, 555 Science Dr., Madison, WI 53711, USA.
J Virol. 2011 Sep;85(18):9637-40. doi: 10.1128/JVI.05074-11. Epub 2011 Jul 6.
It has recently been shown that polymorphism at the rhesus macaque TRIM5 locus can affect simian immunodeficiency virus (SIV) replication. Here we show that TRIM5 alleles can also affect acquisition of SIVsmE660. Animals coexpressing the TRIM5(TFP) and TRIM5(CypA) alleles took significantly longer to become infected with SIVsmE660, but not SIVmac239, after repeated limiting-dose intrarectal challenge than did animals expressing other TRIM5 allele combinations. Our results indicate that the TRIM5 alleles can be a barrier to productive infection and that this should be taken into account when designing acquisition studies using SIVsmE660 or related viruses.
最近的研究表明,恒河猴 TRIM5 基因座的多态性可能会影响猿猴免疫缺陷病毒(SIV)的复制。本研究表明,TRIM5 等位基因也会影响 SIVsmE660 的获得性感染。在重复给予限制剂量的直肠内攻击后,与表达其他 TRIM5 等位基因组合的动物相比,共表达 TRIM5(TFP)和 TRIM5(CypA)等位基因的动物感染 SIVsmE660 的时间明显延长,但对 SIVmac239 的感染时间没有明显影响。我们的研究结果表明,TRIM5 等位基因可能是产生性感染的障碍,在使用 SIVsmE660 或相关病毒进行获得性感染研究时应考虑这一点。