PMID- 23917628 OWN - NLM STAT- MEDLINE DCOM- 20131211 LR - 20220330 IS - 1471-0064 (Electronic) IS - 1471-0056 (Linking) VI - 14 IP - 9 DP - 2013 Sep TI - Genetic insights into common pathways and complex relationships among immune-mediated diseases. PG - 661-73 LID - 10.1038/nrg3502 [doi] AB - Shared aetiopathogenic factors among immune-mediated diseases have long been suggested by their co-familiality and co-occurrence, and molecular support has been provided by analysis of human leukocyte antigen (HLA) haplotypes and genome-wide association studies. The interrelationships can now be better appreciated following the genotyping of large immune disease sample sets on a shared SNP array: the 'Immunochip'. Here, we systematically analyse loci shared among major immune-mediated diseases. This reveals that several diseases share multiple susceptibility loci, but there are many nuances. The most associated variant at a given locus frequently differs and, even when shared, the same allele often has opposite associations. Interestingly, risk alleles conferring the largest effect sizes are usually disease-specific. These factors help to explain why early evidence of extensive 'sharing' is not always reflected in epidemiological overlap. FAU - Parkes, Miles AU - Parkes M AD - 1] Inflammatory Bowel Disease Research Group, Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge CB2 0QQ, UK. [2]. FAU - Cortes, Adrian AU - Cortes A FAU - van Heel, David A AU - van Heel DA FAU - Brown, Matthew A AU - Brown MA LA - eng GR - G1001158/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20130806 PL - England TA - Nat Rev Genet JT - Nature reviews. Genetics JID - 100962779 SB - IM MH - Alleles MH - Animals MH - Chromosome Mapping MH - Environment MH - Gene-Environment Interaction MH - Genetic Predisposition to Disease MH - Genome-Wide Association Study MH - Humans MH - Immune System Diseases/*genetics/*metabolism MH - *Quantitative Trait Loci MH - *Signal Transduction EDAT- 2013/08/07 06:00 MHDA- 2013/12/16 06:00 CRDT- 2013/08/07 06:00 PHST- 2013/08/07 06:00 [entrez] PHST- 2013/08/07 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] AID - nrg3502 [pii] AID - 10.1038/nrg3502 [doi] PST - ppublish SO - Nat Rev Genet. 2013 Sep;14(9):661-73. doi: 10.1038/nrg3502. Epub 2013 Aug 6.