PMID- 25189266 OWN - NLM STAT- MEDLINE DCOM- 20150408 LR - 20220408 IS - 0973-7731 (Electronic) IS - 0022-1333 (Linking) VI - 93 IP - 2 DP - 2014 Aug TI - Association of susceptible genetic markers and autoantibodies in rheumatoid arthritis. PG - 597-605 AB - Rheumatoid arthritis (RA) is a chronic autoimmune disorder of unknown aetiology resulting in inflammation of the synovium, cartilage and bone. The disease has a heterogeneous character, consisting of clinical subsets of anti-citrullinated protein antibody (ACPA)-positive and APCA-negative disease. Although, the pathogenesis of RA is incompletely understood, genetic factors play a vital role in susceptibility to RA as the heritability of RA is between 50 and 60%, with the human leukocyte antigen (HLA) locus accounting for at least 30% of overall genetic risk. Non-HLA genes, i.e. tumour necrosis factor-alpha (TNF-alpha) within the MHC (major histocompatibility complex) have also been investigated for association with RA. Although, some contradictory results have originated from several studies on TNF-alpha gene, the data published so far indicate the possible existence of TNF-alpha gene promoter variants that act as markers for disease severity and response to treatment in RA. The correlation of HLA and non-HLA genes within MHC region is apparently interpreted. A considerable number of confirmed associations with RA and other autoimmune disease susceptibility loci including peptidylarginine deiminase type 4 (PADI4), protein tyrosine phosphatase non-receptor type 22 (PTPN22), signal transducer and activator of transcription (STAT4), cluster of differentiation 244 (CD244) and cytotoxic T lymphocyte-associated antigen 4 (CTLA4), located outside the MHC have been reported recently. In this review, we aim to give an update on recent progress in RA genetics, the importance of the combination of HLA-DRB1 alleles, non-HLA gene polymorphism, its detection and autoantibodies as susceptibility markers for early RA disease. FAU - Mohan, Vasanth Konda AU - Mohan VK AD - Department of Biochemistry, Sri Ramachandra University, Porur, Chennai 600 116, India. nalinisrmc@gmail.com. FAU - Ganesan, Nalini AU - Ganesan N FAU - Gopalakrishnan, Rajasekhar AU - Gopalakrishnan R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - India TA - J Genet JT - Journal of genetics JID - 2985113R RN - 0 (Autoantibodies) RN - 0 (Biomarkers) RN - 0 (Genetic Markers) RN - 0 (HLA Antigens) SB - IM MH - Animals MH - Arthritis, Rheumatoid/blood/*genetics/immunology MH - Autoantibodies/*blood MH - Biomarkers/blood MH - Genetic Association Studies MH - Genetic Markers MH - Genetic Predisposition to Disease MH - HLA Antigens/genetics MH - Humans MH - Polymorphism, Genetic MH - Risk Factors EDAT- 2014/09/06 06:00 MHDA- 2015/04/09 06:00 CRDT- 2014/09/06 06:00 PHST- 2014/09/06 06:00 [entrez] PHST- 2014/09/06 06:00 [pubmed] PHST- 2015/04/09 06:00 [medline] AID - 10.1007/s12041-014-0380-1 [doi] PST - ppublish SO - J Genet. 2014 Aug;93(2):597-605. doi: 10.1007/s12041-014-0380-1.