Use of recombinant E protein domain III-based enzyme-linked immunosorbent assays for differentiation of tick-borne encephalitis serocomplex flaviviruses from mosquito-borne flaviviruses

Michael R. Holbrook, Robert E. Shope, Alan Barrett

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The serological diagnosis of infection by flaviviruses is complicated by the presence of flavivirus cross-reactive antibodies that produce false-positive results for flavivirus infections, especially in regions where more than one virus is endemic. Current diagnostic reagents for tick-borne flavivirus infection have been found to cross-react with yellow fever- or dengue virus-positive sera. This study utilized recombinant flavivirus E protein domain 3 (rE-D3) as a diagnostic reagent to differentiate between infection by mosquito- and tick-borne flaviviruses. This study found that the use of rE-D3 in an enzyme-linked immunosorbent assay (ELISA)-based format allowed the differentiation between serum specific for either mosquito- or tick-borne flaviviruses, but not among the members of the tick-borne encephalitis (TBE) serocomplex of flaviviruses. Sera derived against several TBE serocomplex rE-D3 were found to cross-react with heterologous rE-D3 within the TBE serocomplex, but not with those from mosquito-borne flaviviruses, in both Western blots and ELISAs. Mouse hyperimmune sera generated against TBE serocomplex viruses were also found to react specifically with TBE serocomplex rE-D3, but not with rE-D3 from mosquito-borne viruses and vice versa. When a similar test using virus-derived antigen was performed, a loss of both specificity and sensitivity was observed. These results indicate that flavivirus rE-D3 would be a useful reagent for the detection of infection by TBE serocomplex flaviviruses, several of which are potential biothreat agents, but would not provide the ability to differentiate among infections by separate members of the serocomplex.

Original languageEnglish
Pages (from-to)4101-4110
Number of pages10
JournalJournal of Clinical Microbiology
Volume42
Issue number9
DOIs
StatePublished - Sep 2004

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Tick-Borne Encephalitis
Flavivirus
Culicidae
Recombinant Proteins
Enzyme-Linked Immunosorbent Assay
Flavivirus Infections
Tick-Borne Diseases
Viruses
Protein Domains
Serum
Yellow fever virus
Tick-Borne Encephalitis Viruses
Dengue Virus
Ticks
Infection

ASJC Scopus subject areas

  • Microbiology (medical)
  • Microbiology

Cite this

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abstract = "The serological diagnosis of infection by flaviviruses is complicated by the presence of flavivirus cross-reactive antibodies that produce false-positive results for flavivirus infections, especially in regions where more than one virus is endemic. Current diagnostic reagents for tick-borne flavivirus infection have been found to cross-react with yellow fever- or dengue virus-positive sera. This study utilized recombinant flavivirus E protein domain 3 (rE-D3) as a diagnostic reagent to differentiate between infection by mosquito- and tick-borne flaviviruses. This study found that the use of rE-D3 in an enzyme-linked immunosorbent assay (ELISA)-based format allowed the differentiation between serum specific for either mosquito- or tick-borne flaviviruses, but not among the members of the tick-borne encephalitis (TBE) serocomplex of flaviviruses. Sera derived against several TBE serocomplex rE-D3 were found to cross-react with heterologous rE-D3 within the TBE serocomplex, but not with those from mosquito-borne flaviviruses, in both Western blots and ELISAs. Mouse hyperimmune sera generated against TBE serocomplex viruses were also found to react specifically with TBE serocomplex rE-D3, but not with rE-D3 from mosquito-borne viruses and vice versa. When a similar test using virus-derived antigen was performed, a loss of both specificity and sensitivity was observed. These results indicate that flavivirus rE-D3 would be a useful reagent for the detection of infection by TBE serocomplex flaviviruses, several of which are potential biothreat agents, but would not provide the ability to differentiate among infections by separate members of the serocomplex.",
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AB - The serological diagnosis of infection by flaviviruses is complicated by the presence of flavivirus cross-reactive antibodies that produce false-positive results for flavivirus infections, especially in regions where more than one virus is endemic. Current diagnostic reagents for tick-borne flavivirus infection have been found to cross-react with yellow fever- or dengue virus-positive sera. This study utilized recombinant flavivirus E protein domain 3 (rE-D3) as a diagnostic reagent to differentiate between infection by mosquito- and tick-borne flaviviruses. This study found that the use of rE-D3 in an enzyme-linked immunosorbent assay (ELISA)-based format allowed the differentiation between serum specific for either mosquito- or tick-borne flaviviruses, but not among the members of the tick-borne encephalitis (TBE) serocomplex of flaviviruses. Sera derived against several TBE serocomplex rE-D3 were found to cross-react with heterologous rE-D3 within the TBE serocomplex, but not with those from mosquito-borne flaviviruses, in both Western blots and ELISAs. Mouse hyperimmune sera generated against TBE serocomplex viruses were also found to react specifically with TBE serocomplex rE-D3, but not with rE-D3 from mosquito-borne viruses and vice versa. When a similar test using virus-derived antigen was performed, a loss of both specificity and sensitivity was observed. These results indicate that flavivirus rE-D3 would be a useful reagent for the detection of infection by TBE serocomplex flaviviruses, several of which are potential biothreat agents, but would not provide the ability to differentiate among infections by separate members of the serocomplex.

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