Common Genetic Variations Associated with the Persistence of Immunity following Childhood Immunization

Publication date: 11 June 2019Source: Cell Reports, Volume 27, Issue 11Author(s): Daniel O’Connor, Eileen Png, Chiea Chuen Khor, Matthew D. Snape, Adrian V.S. Hill, Fiona van der Klis, Clive Hoggart, Michael Levin, Martin L. Hibberd, Andrew J. PollardSummaryVaccines have revolutionized public health, preventing millions of deaths each year, particularly in childhood. Yet, there is considerable variability in the magnitude and persistence of vaccine-induced immunity. Maintenance of specific antibody is essential for continuity of vaccine-induced serological protection. We conducted a genome-wide association study into the persistence of immunity to three childhood vaccines: capsular group C meningococcal (MenC), Haemophilus influenzae type b, and tetanus toxoid (TT) vaccines. We detail associations between variants in a locus containing a family of signal-regulatory proteins and the persistence MenC immunity. We postulate a regulatory role for the lead SNP, with supporting epigenetic and expression quantitative trait loci data. Furthermore, we define associations between SNPs in the human leukocyte antigen (HLA) locus and the persistence of TT-specific immunity. Moreover, we describe four classical HLA alleles, HLA DRB1∗0301, HLA DQB1∗0201, HLA DQB1∗0602, and HLA DRB1∗1501, associated with TT-specific immunity, independent of the lead SNP association.Graphical Abstract
Source: Cell Reports - Category: Cytology Source Type: research