Abstract
Epstein-Barr virus (EBV)-based serologic antibody testing has been found to be a feasible alternative for nasopharyngeal carcinoma (NPC) screening in endemic areas. The purpose of this study was to evaluate the performance of ELISA based on VCA IgA antibody, EA-IgA and Rta-IgG antibody specific to EBV in the diagnosis of NPC. A total of 2155 untreated NPC patients and 6957 healthy volunteers without nasopharyngeal disorder were recruited, and all subjects received EBV VCA-IgA, EA-IgA and Rta-IgG antibody tests simultaneously. The diagnostic efficiency of three testing alone or in combination for the diagnosis of NPC was evaluated. The prevalence of IgA antibody against EBV-VCA, IgA antibody against EBV-EA and IgG antibody against EBV-Rta was 89.9%, 46.6% and 63.2%. The sensitivity, specificity, positive predictive value, negative predictive value and Youden index were 89.88%, 89.65%, 73.18%, 96.63% and 0.79 for the EBV VCA-IgA antibody test, 46.59%, 96.89%, 82.5%, 85.42% and 0.43 for the EA-IgA antibody test, and 63.25%, 94.87%, 79.48%, 89.29% and 0.58 for the Rta-IgG antibody test in the diagnosis of NPC, and ROC curve analysis revealed the greatest diagnostic efficiency for EBV VCA-IgA antibody test and the lowest efficiency for EBV EA-IgA antibody test in the diagnosis of NPC. In addition, the simultaneous triple positivity of VCA-IgA, EA-IgA and Rta-IgG antibodies specific to EBV indicated the highest risk of NPC, and the simultaneous triple negativity of the three types of anti-EBV antibodies suggested the lowest risk of NPC. Our data demonstrate that EBV VCA-IgA antibody test shows a higher diagnostic efficiency than EA-IgA and Rta-IgG antibody tests for the screening of NPC, and triple positivity of is a better biomarker for the diagnosis of NPC.
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Funding
This study was funded by the grants from the Natural Science Foundation of Fujian Province (grant nos. 2016J01511, 2017J05120 and 2018J01273), the Science and Technology Program of Fujian Province (grant no. 2018Y2003) and the Joint Funds for the Innovation of Science and Technology, Fujian Province (grant no. 2017Y9072).
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Guo, J., Cui, Z., Zheng, Y. et al. Comparison of Epstein-Barr Virus Serological Tools for the Screening and Risk Assessment of Nasopharyngeal Carcinoma: a Large Population-based Study. Pathol. Oncol. Res. 26, 2185–2190 (2020). https://doi.org/10.1007/s12253-020-00808-0
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DOI: https://doi.org/10.1007/s12253-020-00808-0