Quantitative real-time PCR assay for detection of human polyornavirus infection

被引:20
作者
Elfaitouri, Amal
Hammarin, Anna-Lena
Blomberg, Jonas [1 ]
机构
[1] Univ Uppsala Hosp, Sect Virol, Dept Med Sci, S-57185 Uppsala, Sweden
[2] SIIDC, Solna, Sweden
关键词
broadly targeted PCR; real-time PCR; QPCR; polyomavirus; JC virus; BK virus (BKV); simian virus 40 (SV40);
D O I
10.1016/j.jviromet.2006.03.006
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The human polyomaviruses BK (BKV) and JC (JCV) affect immunosuppressed patients and are associated with urogenital tract (BKV) and CNS disorders (XV) and in humans, the pathogenic role of the rhesus monkey virus, Simian virus 40 (SV40), is uncertain. These three viruses have somewhat overlapping tissue pathogenicity and detection of all three polyomaviruses is desirable. A broadly targeted, simple, single tube real-time degenerated quantitative PCR (QPCR) technique for detection of JCV, BKV and SV40 DNA was developed. To avoid false positive results, due to contamination with commonly used SV40 T-antigen plasmids, a conserved region of the VP2 gene was targeted. Down to 1-10 copies of target DNA per PCR reaction were detected. The QPCR was compared with a nested PCR on 41 clinical samples (urine, serum and plasma): 24 (58.5%) tested positive by nested PCR, whereas 31 (75.6%) were positive with QPCR. One CSF sample, from a patient with progressive multifocal leukoencephalopathy, was negative with the nested PCR but determined as positive by QPCR. Sera from 24 blood donors were negative with QPCR. The QPCR described had a high sensitivity. Its specificity was confirmed sequencing. The QPCR is simple to perform and is valuable for diagnosis of polyomavirus infection. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:207 / 213
页数:7
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