PMID- 24385024 OWN - NLM STAT- MEDLINE DCOM- 20141118 LR - 20220129 IS - 1476-5470 (Electronic) IS - 1466-4879 (Print) IS - 1466-4879 (Linking) VI - 15 IP - 2 DP - 2014 Mar TI - The influence of polygenic risk scores on heritability of anti-CCP level in RA. PG - 107-14 LID - 10.1038/gene.2013.68 [doi] AB - The objective of this study was to study genetic factors that influence quantitative anticyclic citrullinated peptide (anti-CCP) antibody levels in RA patients. We carried out a genome-wide association study (GWAS) meta-analysis using 1975 anti-CCP+ RA patients from three large cohorts, the Brigham Rheumatoid Arthritis Sequential Study (BRASS), North American Rheumatoid Arthritis Consortium (NARAC) and the Epidemiological Investigation of RA (EIRA). We also carried out a genome-wide complex trait analysis (GCTA) to estimate the heritability of anti-CCP levels. GWAS-meta-analysis showed that anti-CCP levels were most strongly associated with the human leukocyte antigen (HLA) region with a P-value of 2 x 10(-11) for rs1980493. There were 112 SNPs in this region that exceeded the genome-wide significance threshold of 5 x 10(-8), and all were in linkage disequilibrium (LD) with the HLA- DRB1*03 allele with LD r(2) in the range of 0.25-0.88. Suggestive novel associations outside of the HLA region were also observed for rs8063248 (near the GP2 gene) with a P-value of 3 x 10(-7). None of the known RA risk alleles ( approximately 52 loci) were associated with anti-CCP level. Heritability analysis estimated that 44% of anti-CCP variation was attributable to genetic factors captured by GWAS variants. In summary, anti-CCP level is a heritable trait, and HLA-DR3 and GP2 are associated with lower anti-CCP levels. FAU - Cui, J AU - Cui J AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. FAU - Taylor, K E AU - Taylor KE AD - Rosalind Russell Medical Research Center for Arthritis, Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA, USA. FAU - Lee, Y C AU - Lee YC AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. FAU - Kallberg, H AU - Kallberg H AD - Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden. FAU - Weinblatt, M E AU - Weinblatt ME AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. FAU - Coblyn, J S AU - Coblyn JS AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. FAU - Klareskog, L AU - Klareskog L AD - Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden. FAU - Criswell, L A AU - Criswell LA AD - Rosalind Russell Medical Research Center for Arthritis, Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA, USA. FAU - Gregersen, P K AU - Gregersen PK AD - The Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, Manhasset, NY, USA. FAU - Shadick, N A AU - Shadick NA AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. FAU - Plenge, R M AU - Plenge RM AD - 1] Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA [2] Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA [3] Medical and Population Genetics Program, Chemical Biology Program, Broad Institute, Cambridge, MA, USA. FAU - Karlson, E W AU - Karlson EW AD - Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. LA - eng GR - 250167/ERC_/European Research Council/International GR - U01 GM092691/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Meta-Analysis PT - Observational Study DEP - 20140102 PL - England TA - Genes Immun JT - Genes and immunity JID - 100953417 RN - 0 (Autoantibodies) RN - 0 (GP2 protein, human) RN - 0 (GPI-Linked Proteins) RN - 0 (HLA-DR3 Antigen) RN - 0 (HLA-DRB1 Chains) RN - 0 (Peptides, Cyclic) RN - 0 (cyclic citrullinated peptide) SB - IM MH - Arthritis, Rheumatoid/*genetics/*immunology MH - Autoantibodies/*immunology MH - Case-Control Studies MH - Cohort Studies MH - Female MH - GPI-Linked Proteins/genetics MH - Genetic Predisposition to Disease MH - Genome-Wide Association Study MH - HLA-DR3 Antigen/genetics/immunology MH - HLA-DRB1 Chains/genetics/immunology MH - Humans MH - Linkage Disequilibrium MH - Male MH - Middle Aged MH - Models, Genetic MH - Peptides, Cyclic/*immunology MH - Polymorphism, Single Nucleotide MH - Prospective Studies PMC - PMC3948067 MID - EMS56063 OID - NLM: EMS56063 EDAT- 2014/01/05 06:00 MHDA- 2014/11/19 06:00 PMCR- 2014/09/01 CRDT- 2014/01/04 06:00 PHST- 2013/08/28 00:00 [received] PHST- 2013/11/18 00:00 [revised] PHST- 2013/11/19 00:00 [accepted] PHST- 2014/01/04 06:00 [entrez] PHST- 2014/01/05 06:00 [pubmed] PHST- 2014/11/19 06:00 [medline] PHST- 2014/09/01 00:00 [pmc-release] AID - gene201368 [pii] AID - 10.1038/gene.2013.68 [doi] PST - ppublish SO - Genes Immun. 2014 Mar;15(2):107-14. doi: 10.1038/gene.2013.68. Epub 2014 Jan 2.