The Possible Effect of B-Cell Epitopes of Epstein-Barr Virus Early Antigen, Membrane Antigen, Latent Membrane Protein-1, and -2A on Systemic Lupus Erythematosus

Frontiers in Immunology
Jianxin TuLi Sun

Abstract

This study was aimed to evaluate the role of B-cell epitopes of Epstein-Barr virus (EBV) Early antigen protein D (EA), envelope glycoprotein GP340/membrane antigen (MA), latent membrane protein (LMP)-1, and LMP-2A in systemic lupus erythematosus (SLE). B-cell epitopes were predicted by analyzing secondary structure, transmembrane domains, surface properties, and homological comparison. 60 female mice were randomized equally into 12 groups: 1-10 groups were immunized by epitope peptides (EPs) 1-10, respectively, while 11 and 12 groups were PBS and Keyhole limpet hemocyanin (KLH) control groups. Immunoglobulin G (IgG) and autoantibody to nuclear antigen (ANA) concentrations in mice serum were determined at week 8. Indirect levels of EP1-10 were further detected by enzyme-linked immuno sorbent assay (ELISA) in 119 SLE patients and 64 age- and gender-matched health controls (HCs). 10 probable EBV EA, MA, LMP-1, and LMP-2A B-cell epitopes related to SLE self-antigens were predicted and corresponding EP1-10 were synthesized. IgG concentrations at week 8 were increased in EP1-10 and KLH groups compared with PBS group in mice; while ANA levels were elevated in only EP1-4, EP6-7, and EP10 groups compared to KLH group by ELISA, and ANA-p...Continue Reading

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Citations

Mar 7, 2021·Viruses·Marco QuagliaVincenzo Cantaluppi
Feb 23, 2021·Frontiers in Immunology·Neelakshi R Jog, Judith A James
Sep 18, 2021·Thoracic Cancer·Rui ChangPeng Zhang

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Methods Mentioned

BETA
Serum
Enzyme-Linked Immunosorbent Assay
ELISA
Assay
fluorescence microscopy
PCR

Software Mentioned

DNAstar
BLAST
EXPASY Internet Server
GraphPad
Protean
TMpred
EXPASY
SPSS

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