HAART治疗前后HIV-1细胞嗜性分析  

Analysis of HIV-1 cell tropism in patients receiving HAART

作　　者：马素珍[1] 李韩平[2] 鲍作义[2] 李敬云[2] 徐小元[1] 

机构地区：[1]北京大学第一医院感染疾病科,北京100034 [2]军事医学科学院五所八室,北京100071

出　　处：《中国艾滋病性病》2008年第4期330-332,共3页Chinese Journal of Aids & STD

基　　金：国家自然科学基金(No.30771906)

摘　　要：目的分析7例患者在高效抗逆转录病毒治疗(HAART)前和治疗后,艾滋病病毒Ⅰ型(HIV-1)细胞嗜性的改变及影响因素。方法采用BD公司的流式细胞仪,通过绝对计数法测定CD4+T淋巴细胞计数和CD8+T淋巴细胞计数,荧光标记物为BD TriTEST CD3FITC/CD4PE/CD45PerCP。采用核酸序列扩增实验(NASBA)测定病毒载量(生物梅里埃公司提供仪器和试剂)。套式聚合酶链反应(Nested-PCR)对gp120V3环区基因进行扩增、测序分析,并确定HIV-1细胞嗜性。结果在7例患者中,有3例发生细胞嗜性转换,2例是从R5到X4嗜性的转换,1例是X4到R5嗜性的转换。在7例患者中,病毒细胞嗜性转换与患者病毒载量、CD4+、CD8+T淋巴细胞之间无相关性。结论HIV-1细胞嗜性的转换与疾病进展的关系不确定;HAART治疗对嗜性转换的作用还不明确。Objective To analyze HIV-1 cell tropism in 7 AIDS patients before and after HAART and its related factors. Method Genome DNA was abstracted from patients＇ whole blood and HIV-1 Env gene was amplified using nested- PCR. Then the sequence was analyzed by CEXPRESS,BIOEIDT software. Coreceptor phenotype was predicted after sequencing the V3 loop of the HIV-1 glycoprotein 120 using biosoftware geno2pheno （Coreceptor on website-http：// www.geno2pheno.org）. And HIV-1 cell tropism was finally determined. Result Among the 7 patients switch of HIV- 1 cell tropism was observed in 3 cases,of whom two switched from R5 to X4 and one switched from X4 to R5. The switch of cell tropism had no correlation with patients＇ viral loads, CD4^＋ or CD8^＋ T lymphocytes. Conclusion The relationship between the switch of HIV-1 cell tropism and the progress of AIDS is indefinite, and the effect of HAART on switch of tropism remains unknown.

关 键 词：高效抗逆转录病毒治疗 套式聚合酶链反应 艾滋病病毒Ⅰ型 细胞嗜性 

分 类 号：R512.91[医药卫生—内科学]