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Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2

  • Authors:
    • Yiqi Cai
    • Yiling Song
    • Danwei Cen
    • Chanqiong Zhang
    • Shanshan Mao
    • Xiaoxian Ye
    • Yirong Xiong
    • Pengfei Jiang
    • Jun Chen
    • Xiangyang Xue
    • Lifang Zhang
    • Guanbao Zhu
  • View Affiliations / Copyright

    Affiliations: Department of General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China, Institute of Molecular Virology and Immunology, Department of Medical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
    Copyright: © Cai et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 4372-4378
    |
    Published online on: July 25, 2018
       https://doi.org/10.3892/ol.2018.9216
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Abstract

Epstein‑Barr virus (EBV) is widespread and is associated with nasopharyngeal carcinoma (NPC). Serological detection of EBV is commonly used for screening, diagnosis and epidemiological surveys of NPC. In the present study, a novel B cell multi‑epitope peptide fusion protein (EBV‑LMP2‑3B), which is composed of three B cell linear epitopes (RIEDPPFNSLL, TLNLT and KSLSSTEFIPN) of EBV latent membrane protein 2 (LMP2), was expressed in a prokaryotic expression system and purified using Ni2+‑nitrilotriacetate‑Sepharose. The immunogenicity and binding specificity of EBV‑LMP2‑3B were evaluated on the basis of antibody responses in immunized BALB/c mice, western blotting and indirect immunofluorescence assay. Evaluation of EBV‑LMP2‑3B as a serological diagnostic reagent was performed using an indirect ELISA in 198 patients with NPC and 102 healthy adults. These results revealed that EBV‑LMP2‑3B was able to eliminate the high‑titer serum antibody response in BALB/c mice. Western blot analysis and indirect immunofluorescence assay confirmed that the mouse immune sera recognized the native LMP2. Compared with healthy adults, patients with NPC demonstrated significantly greater reactivity to EBV‑LMP2‑3B (P<0.05). Furthermore, it was possible to effectively detect specific IgG in sera from patients with NPC, with a sensitivity of 91.91% and specificity of 93.14%, representing an improvement over the traditional viral capsid antigen‑IgA‑based detection method with 59.59% sensitivity and 75.49% specificity. In conclusion, the EBV‑LMP2‑3B protein may be used as a serological diagnostic reagent to screen for and diagnose NPC.
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Copy and paste a formatted citation
Spandidos Publications style
Cai Y, Song Y, Cen D, Zhang C, Mao S, Ye X, Xiong Y, Jiang P, Chen J, Xue X, Xue X, et al: Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2. Oncol Lett 16: 4372-4378, 2018.
APA
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X. ... Zhu, G. (2018). Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2. Oncology Letters, 16, 4372-4378. https://doi.org/10.3892/ol.2018.9216
MLA
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X., Xiong, Y., Jiang, P., Chen, J., Xue, X., Zhang, L., Zhu, G."Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2". Oncology Letters 16.4 (2018): 4372-4378.
Chicago
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X., Xiong, Y., Jiang, P., Chen, J., Xue, X., Zhang, L., Zhu, G."Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2". Oncology Letters 16, no. 4 (2018): 4372-4378. https://doi.org/10.3892/ol.2018.9216
Copy and paste a formatted citation
x
Spandidos Publications style
Cai Y, Song Y, Cen D, Zhang C, Mao S, Ye X, Xiong Y, Jiang P, Chen J, Xue X, Xue X, et al: Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2. Oncol Lett 16: 4372-4378, 2018.
APA
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X. ... Zhu, G. (2018). Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2. Oncology Letters, 16, 4372-4378. https://doi.org/10.3892/ol.2018.9216
MLA
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X., Xiong, Y., Jiang, P., Chen, J., Xue, X., Zhang, L., Zhu, G."Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2". Oncology Letters 16.4 (2018): 4372-4378.
Chicago
Cai, Y., Song, Y., Cen, D., Zhang, C., Mao, S., Ye, X., Xiong, Y., Jiang, P., Chen, J., Xue, X., Zhang, L., Zhu, G."Novel ELISA for serodiagnosis of nasopharyngeal carcinoma based on a B cell epitope of Epstein‑Barr virus latent membrane protein 2". Oncology Letters 16, no. 4 (2018): 4372-4378. https://doi.org/10.3892/ol.2018.9216
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