PMID- 16112026 OWN - NLM STAT- MEDLINE DCOM- 20051207 LR - 20071114 IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 66 IP - 7 DP - 2005 Jul TI - Extinction of the human leukocyte antigen homozygosity effect after two doses of the measles-mumps-rubella vaccine. PG - 788-98 AB - We have reported associations between human leukocyte antigen (HLA) homozygosity and low measles antibody levels after one dose of the measles, mumps, and rubella (MMR) vaccine. Here, we examined associations between HLA homozygosity and immune responses to MMR after two doses of vaccine. We examined associations between HLA homozygosity and measles antibody levels in a group of 178 children (cohort 1) as well as associations between homozygosity and antibody levels and lymphoproliferative responses to MMR in 346 children (cohort 2). In cohort 1, HLA homozygotes and heterozygotes had similar increases in measles antibody levels after a second dose of measles vaccine. In cohort 2, HLA homozygosity was not associated with measles immune measures after two doses of vaccine. Homozygosity at the DPB locus was associated with increased rubella antibody levels, and homozygosity at the class IA alleles was associated with lower mumps lymphoproliferative response. Homozygosity at increasing numbers of loci was also associated with lower mumps antibody levels and lymphoproliferative response. Therefore, two doses of the MMR vaccine appear to induce sufficient antibody levels and lymphoproliferative responses against measles and rubella, regardless of HLA homozygosity status. However, children who are HLA homozygous may be less protected against mumps compared with children who are heterozygous. FAU - St Sauver, Jennifer L AU - St Sauver JL AD - Department of Health Sciences Research, Division of Epidemiology, Mayo Clinic, Rochester, MN 55905, USA. FAU - Dhiman, Neelam AU - Dhiman N FAU - Ovsyannikova, Inna G AU - Ovsyannikova IG FAU - Jacobson, Robert M AU - Jacobson RM FAU - Vierkant, Robert A AU - Vierkant RA FAU - Pankratz, V Shane AU - Pankratz VS FAU - Jacobsen, Steven J AU - Jacobsen SJ FAU - Poland, Gregory A AU - Poland GA LA - eng GR - AI 33144/AI/NIAID NIH HHS/United States GR - AI 48793/AI/NIAID NIH HHS/United States GR - AR030582/AR/NIAMS NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (Antibodies) RN - 0 (Antibodies, Viral) RN - 0 (HLA Antigens) RN - 0 (Measles-Mumps-Rubella Vaccine) RN - 0 (rubella antibodies) SB - IM MH - Antibodies/immunology MH - Antibodies, Viral/immunology MH - Antibody Formation/immunology MH - Child MH - Cohort Studies MH - Dose-Response Relationship, Drug MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - HLA Antigens/*genetics/immunology MH - Heterozygote MH - Homozygote MH - Humans MH - Immunity, Cellular/immunology MH - Infant MH - Leukocytes, Mononuclear/immunology MH - Lymphocyte Activation/immunology MH - Male MH - Measles/immunology/prevention & control MH - Measles-Mumps-Rubella Vaccine/administration & dosage/*immunology MH - Mumps/immunology/prevention & control MH - Rubella/immunology/prevention & control EDAT- 2005/08/23 09:00 MHDA- 2005/12/13 09:00 CRDT- 2005/08/23 09:00 PHST- 2004/01/11 00:00 [received] PHST- 2005/03/11 00:00 [revised] PHST- 2005/03/14 00:00 [accepted] PHST- 2005/08/23 09:00 [pubmed] PHST- 2005/12/13 09:00 [medline] PHST- 2005/08/23 09:00 [entrez] AID - S0198-8859(05)00070-4 [pii] AID - 10.1016/j.humimm.2005.03.008 [doi] PST - ppublish SO - Hum Immunol. 2005 Jul;66(7):788-98. doi: 10.1016/j.humimm.2005.03.008.