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Detection of low-load Epstein-Barr virus in blood samples by enriched recombinase aided amplification assay

Epstein-Barr virus (EBV), a common human γ-herpesvirus, infects more than 90% of adults worldwide. The purpose of this study was to establish a novel EBV detection method by combining the recombinase aided amplification (RAA) assay with an initial enrichment step that utilizes magnetic beads coated...

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Published in:AMB Express 2022-06, Vol.12 (1), p.71-71, Article 71
Main Authors: Li, Jing-yi, Chen, Xiao-ping, Tie, Yan-qing, Sun, Xiu-li, Zhang, Rui-qing, He, An-na, Nie, Ming-zhu, Fan, Guo-hao, Li, Feng-yu, Tian, Feng-yu, Shen, Xin-xin, Feng, Zhi-shan, Ma, Xue-jun
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creator Li, Jing-yi
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description Epstein-Barr virus (EBV), a common human γ-herpesvirus, infects more than 90% of adults worldwide. The purpose of this study was to establish a novel EBV detection method by combining the recombinase aided amplification (RAA) assay with an initial enrichment step that utilizes magnetic beads coated with a recombinant human mannan-binding lectin (rhMBL, M1 protein). An M1 protein–protein A magnetic bead complex (M1 beads) was prepared and used to achieve separation and enrichment of EBV from blood. After nucleic acid extraction, DNA was amplified by RAA. Using 388 whole blood samples and 1 serum sample, we explored the specificity, sensitivity and applicability of the newly developed detection method and compared it with commercial quantitative real-time polymerase chain reaction (qPCR) following M1 bead enrichment, traditional qPCR and traditional RAA. After enrichment, the positivity rate of EBV was increased from 15.94% to 17.74% by RAA ( P  
doi_str_mv 10.1186/s13568-022-01415-9
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The purpose of this study was to establish a novel EBV detection method by combining the recombinase aided amplification (RAA) assay with an initial enrichment step that utilizes magnetic beads coated with a recombinant human mannan-binding lectin (rhMBL, M1 protein). An M1 protein–protein A magnetic bead complex (M1 beads) was prepared and used to achieve separation and enrichment of EBV from blood. After nucleic acid extraction, DNA was amplified by RAA. Using 388 whole blood samples and 1 serum sample, we explored the specificity, sensitivity and applicability of the newly developed detection method and compared it with commercial quantitative real-time polymerase chain reaction (qPCR) following M1 bead enrichment, traditional qPCR and traditional RAA. After enrichment, the positivity rate of EBV was increased from 15.94% to 17.74% by RAA ( P  &lt; 0.05) and from 7.20% to 15.17% by qPCR ( P  &lt; 0.05). 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subjects Amplification
Assaying
Beads
Biomedical and Life Sciences
Biotechnology
Blood
Enrichment
Epstein-Barr virus
Life Sciences
Low viral load
M1 beads
Mannan
Mannose-binding lectin
Microbial Genetics and Genomics
Microbiology
Nucleic acids
Original
Original Article
Polymerase chain reaction
Protein A
Proteins
RAA
Recombinase
Sensitive detection
Viruses
title Detection of low-load Epstein-Barr virus in blood samples by enriched recombinase aided amplification assay
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