Single genome amplification of proviral HIV-1 DNA from dried blood spot specimens collected during early infant screening programs in Lusaka, Zambia

被引：2

作者：

Seu, Lillian ^{[1
,2
]}

Mwape, Innocent ^{[2
]}

Guffey, M. Bradford ^{[1
,2
]}

机构：

[1] Ctr Infect Dis Res Zambia, Lusaka, Zambia

[2] Univ Alabama Birmingham, Div Infect Dis, Birmingham, AL 35294 USA

来源：

JOURNAL OF VIROLOGICAL METHODS | 2014年 / 203卷

关键词：

HIV DNA PCR; Dried blood spots (DBS); Single genome amplification; Zambia; Transmitted/founder viruses; DRUG-RESISTANCE; ANTIRETROVIRAL THERAPY; TRANSMISSION; INFECTION; MUTATIONS; EVOLUTION; DIAGNOSIS; RNA;

D O I：

10.1016/j.jviromet.2014.03.001

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The ability to evaluate individual HIV-1 virions from the quasispecies of vertically infected infants was evaluated in a field setting at the Centre for Infectious Disease Research in Zambia. Infant heel-prick blood specimens were spotted onto dried blood spot (DBS) filter paper cards at government health clinics. Nucleic acid was extracted and used as a template for HIV-1 proviral DNA detection by a commercial Amplicor HIV-1 PCR test (Roche, version 1.5). On samples that tested positive by commercial diagnostic assay, amplification of DNA was performed using an in-house assay of the 5 ' and 3 ' region of the HIV-1 genome. Additionally, fragments covering 1200 nucleotides within pol (full length protease and partial reverse transcriptase) and 1400 nucleotides within env (variable 1-variable 5 region) were further analyzed by single genome amplification (SGA). In summary, we have demonstrated an in-house assay for amplifying the 5 ' and 3 ' proviral HIV-1 DNA as well as pol and env proviral DNA fragments from DBS cards collected and analyzed entirely in Zambia. In conclusion, this study shows the feasibility of utilizing DBS cards to amplify the whole proviral HIV-1 genome as well as perform SGA on key HIV-1 genes. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：97 / 101

页数：5

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