Enzyme-linked Immunosorbent Assays for Detection of Antibodies to Ebola and Marburg Viruses Using Recombinant Nucleoproteins
Overview
Affiliations
The full-length nucleoprotein (NP) of Ebola virus (EBO) was expressed as a His-tagged recombinant protein (His-EBO-NP) by a baculovirus system. Carboxy-terminal halves of NPs of EBO and Marburg virus (MBG) were expressed as glutathione S-transferase-tagged recombinant proteins in an Escherichia coli system. The antigenic regions on the NPs of EBO and MBG were determined by both Western blotting and enzyme-linked immunosorbent assay (ELISA) to be located on the C-terminal halves. The C-terminal 110 and 102 amino acids of the NPs of EBO and MBG, respectively, possess strong antigenicity. The full-length NP of EBO was strongly expressed in insect cells upon infection with the recombinant baculovirus, while expression of the full-length NP of MBG was weak. We developed an immunoglobulin G (IgG) ELISA using His-EBO-NP and the C-terminal halves of the NPs of EBO and MBG as antigens. We evaluated the IgG ELISA for the ability to detect IgG antibodies to EBO and MBG, using human sera collected from EBO and MBG patients. The IgG ELISA with the recombinant NPs showed high sensitivity and specificity in detecting EBO and MBG antibodies. The results indicate that ELISA systems prepared with the recombinant NPs of EBO and MBG are valuable tools for the diagnosis of EBO and MBG infections and for seroepidemiological field studies.
Development of an Immunochromatography Assay to Detect Marburg Virus and Ravn Virus.
Changula K, Kajihara M, Muramatsu S, Hiraoka K, Yamaguchi T, Yago Y Viruses. 2023; 15(12).
PMID: 38140590 PMC: 10747695. DOI: 10.3390/v15122349.
Seroprevalence of Jamestown Canyon virus in the Japanese general population.
Kato H, Satoh M, Kawahara M, Kitaura S, Yoshikawa T, Fukushi S BMC Infect Dis. 2020; 20(1):790.
PMID: 33096994 PMC: 7585186. DOI: 10.1186/s12879-020-05517-2.
Surtees R, Stern D, Ahrens K, Kromarek N, Lander A, Kreher P PLoS Negl Trop Dis. 2020; 14(10):e0008699.
PMID: 33095766 PMC: 7641473. DOI: 10.1371/journal.pntd.0008699.
Paweska J, Moolla N, Storm N, Msimang V, Conteh O, Weyer J Viruses. 2019; 11(8).
PMID: 31344850 PMC: 6722596. DOI: 10.3390/v11080678.
Diagnosis of rubella virus using antigen-conjugated Au@Pt nanorods as nanozyme probe.
Zhang T, Tian F, Long L, Liu J, Wu X Int J Nanomedicine. 2018; 13:4795-4805.
PMID: 30197515 PMC: 6112774. DOI: 10.2147/IJN.S171429.