|
Basic Characteristics of Mutations
|
|
Mutation Site
|
D67N |
|
Mutation Site Sentence
|
Table 3 |
|
Mutation Level
|
Amino acid level |
|
Mutation Type
|
Nonsynonymous substitution |
|
Gene/Protein/Region
|
E |
|
Standardized Encoding Gene
|
envelope
|
|
Genotype/Subtype
|
Colombian |
|
Viral Reference
|
-
|
|
Functional Impact and Mechanisms
|
|
Disease
|
Guillain-Barre Syndrome
|
|
Immune
|
- |
|
Target Gene
|
-
|
|
Clinical and Epidemiological Correlations
|
|
Clinical Information
|
Y |
|
Treatment
|
- |
|
Location
|
Colombia |
|
Literature Information
|
|
PMID
|
39599819
|
|
Title
|
Analysis of Memory Antibody Responses in Individuals with Zika-Associated Guillain-Barre Syndrome
|
|
Author
|
Premazzi Papa M,Mantus G,Kabra K,Herrera Gomez C,Ward A,Encinales L,Cadena A,Chang A,Lynch RM
|
|
Journal
|
Viruses
|
|
Journal Info
|
2024 Oct 30;16(11):1704
|
|
Abstract
|
The Zika virus (ZIKV) was responsible for a major outbreak in 2015 in the Americas. Infections were associated with increased cases of microcephaly in infants and Guillain-Barre Syndrome (GBS) in adults. Our group previously demonstrated that Zika-associated GBS correlated with the increased neutralization of ZIKV and DENV2, but the antibody specificity was not analyzed. Here, we generated reporter virus particles (RVPs) of ZIKV with specific-point mutations that allowed us to investigate the specificity of circulating plasma antibodies at two different timepoints from individuals with Zika-associated GBS. We found that neutralizing antibody titers to ZIKV waned between one and two years post-ZIKV infection in GBS-negative but not GBS-positive individuals. Interestingly, plasma neutralization by GBS-negative individuals was more sensitive to a mutation at position N154A than plasma from GBS-positive individuals. To determine if waning was associated with different levels of B-cell activation at the time of infection, pro-inflammatory cytokines were measured, but no differences were observed in people with or without GBS. These data suggest subtle differences between GBS-positive and-negative individuals' circulating antibodies, where antibodies from GBS-positive individuals may target different epitopes and remain in circulation longer as compared to GBS-negative individuals.
|
|
Sequence Data
|
-
|
|
|