Generation of representative primary virus isolates from blood plasma after isolation of HIV-1 with CD44 MicroBeads

被引:4
作者
Cornelissen, Marion [1 ]
Heeregrave, Edwin J. [1 ]
Zorgdrager, Fokla [1 ]
Pollakis, Georgios [1 ]
Paxton, William A. [1 ]
van der Kuyl, Antoinette C. [1 ]
机构
[1] Univ Amsterdam, Acad Med Ctr, Lab Expt Virol,Dept Med Microbiol, Ctr Infect & Immun Amsterdam CINIMA, NL-1105 AZ Amsterdam, Netherlands
关键词
HUMAN-IMMUNODEFICIENCY-VIRUS; NUCLEOTIDE SUBSTITUTIONS; BIOLOGICAL PHENOTYPE; IN-VITRO; INFECTION; ASSAY; NUMBER; VIVO; DNA;
D O I
10.1007/s00705-010-0806-x
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Infection of cell cultures with cell-free virus isolated from HIV-infected patients is notoriously difficult and results in a loss of viral variation. Here, we describe viral sequences from PBMC, U87.CD4.CCR5 and U87.CD4.CXCR4 cell cultures and compare them to those from blood plasma from 12 patients from whom virus particles were isolated using CD44 MicroBeads. In both PBMC and U87.CD4.CCR5 cultures, 66% of the plasma viral strains were retrieved after culturing. In addition, coreceptor use was predicted based on the env-V3 sequence and tested in U87.CD4 cells expressing either CCR5 or CXCR4. Recovery was lower for the CXCR4-using viruses. Only 50% of the virus clusters predicted to use CXCR4 could be retrieved from cell cultures, while 71% of CCR5-using strains were found in U87.CCR5 cultures. Therefore, isolation of primary viruses with CD44 MicroBeads results in a good representation in cell culture of the in vivo divergence.
引用
收藏
页码:2017 / 2022
页数:6
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