Journal
EUROPEAN JOURNAL OF IMMUNOLOGY
Volume 51, Issue 7, Pages 1824-1838Publisher
WILEY
DOI: 10.1002/eji.202049054
Keywords
rubella; rubella vaccine; immunity; humoral; RNA; transcriptome; genetic markers
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Funding
- National Institute of Allergy And Infectious Diseases of the National Institutes of Health [R37AI048793, R01AI033144]
- U.S. Public Health Service, National Institutes of Health [GM065450]
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This study identified novel genes that mediate the association between prior immune response and neutralizing antibody titer after a third MMR vaccine dose, involving in innate antiviral response, IFN/cytokine signaling, B cell repertoire generation, the clonal selection of B lymphocytes in germinal centers, and somatic hypermutation/antibody affinity maturation to enhance antigen-specific B cell immune function.
Multiple factors linked to host genetics/inherent biology play a role in interindividual variability in immune response outcomes after rubella vaccination. In order to identify these factors, we conducted a study of rubella-specific humoral immunity before (Baseline) and after (Day 28) a third dose of MMR-II vaccine in a cohort of 109 women of childbearing age. We performed mRNA-Seq profiling of PBMCs after rubella virus in vitro stimulation to delineate genes associated with post-vaccination rubella humoral immunity and to define genes mediating the association between prior immune response status (high or low antibody) and subsequent immune response outcome. Our study identified novel genes that mediated the association between prior immune response and neutralizing antibody titer after a third MMR vaccine dose. These genes included the following: CDC34; CSNK1D; APOBEC3F; RAD18; AAAS; SLC37A1; FAS; and JAK2. The encoded proteins are involved in innate antiviral response, IFN/cytokine signaling, B cell repertoire generation, the clonal selection of B lymphocytes in germinal centers, and somatic hypermutation/antibody affinity maturation to promote optimal antigen-specific B cell immune function. These data advance our understanding of how subjects' prior immune status and/or genetic propensity to respond to rubella/MMR vaccination ultimately affects innate immunity and humoral immune outcomes after vaccination.
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