Abstract
Identification of host genetic determinants of measles vaccine-induced immunity can be used to design better vaccines and ultimately predict immune responses to vaccination.We performed a comprehensive candidate gene association study across 801 genetic markers in 56 cytokine/cytokine receptor genes, in a racially diverse cohort of 745 schoolchildren after two doses of MMR vaccine. Using linear regression methodologies we examined associations between SNPs/haplotypes and measles virus-specific immunity.Forty-eight significant SNP associations with variations in neutralizing antibodies and measles-specific IFNγ Elispot responses were identified (p<. 0.05). Our study replicated an important previously found association of a functional IL12B genetic variant rs3212227 with variations in measles-specific humoral immunity (p= 0.037). Similarly, two previously reported promoter IL10 and IL2 polymorphisms (rs1800890 and rs2069762) demonstrated associations with measles-specific cellular immunity in Caucasians (p≤. 0.034). Multiple IL7R polymorphisms, including a non-synonymous functional SNP (rs6897932/Thr244Ile), were associated with humoral (p≤. 0.024) and/or cellular (IFNγ Elispot, p≤. 0.023) measles-specific immune responses in Caucasians, but not African-Americans. Haplotype level analysis confirmed the association of IL7R genetic variants with measles vaccine-induced immunity in the Caucasian group (global p-value = 0.003).Our results validate previous findings and identify new plausible genetic determinants, including IL7R polymorphisms, regulating measles vaccine-induced immunity in a race-specific manner.
Original language | English (US) |
---|---|
Pages (from-to) | 7883-7895 |
Number of pages | 13 |
Journal | Vaccine |
Volume | 29 |
Issue number | 45 |
DOIs | |
State | Published - Oct 19 2011 |
Keywords
- Cytokine
- Cytokine receptor
- Haplotypes
- Immunity
- Measles vaccine
- Single nucleotide polymorphisms
ASJC Scopus subject areas
- Molecular Medicine
- General Immunology and Microbiology
- General Veterinary
- Public Health, Environmental and Occupational Health
- Infectious Diseases