» Articles » PMID: 15657875

Polymorphisms in the Tyrosine Kinase 2 and Interferon Regulatory Factor 5 Genes Are Associated with Systemic Lupus Erythematosus

Abstract

Systemic lupus erythematosus (SLE) is a complex systemic autoimmune disease caused by both genetic and environmental factors. Genome scans in families with SLE point to multiple potential chromosomal regions that harbor SLE susceptibility genes, and association studies in different populations have suggested several susceptibility alleles for SLE. Increased production of type I interferon (IFN) and expression of IFN-inducible genes is commonly observed in SLE and may be pivotal in the molecular pathogenesis of the disease. We analyzed 44 single-nucleotide polymorphisms (SNPs) in 13 genes from the type I IFN pathway in 679 Swedish, Finnish, and Icelandic patients with SLE, in 798 unaffected family members, and in 438 unrelated control individuals for joint linkage and association with SLE. In two of the genes--the tyrosine kinase 2 (TYK2) and IFN regulatory factor 5 (IRF5) genes--we identified SNPs that displayed strong signals in joint analysis of linkage and association (unadjusted P<10(-7)) with SLE. TYK2 binds to the type I IFN receptor complex and IRF5 is a regulator of type I IFN gene expression. Thus, our results support a disease mechanism in SLE that involves key components of the type I IFN system.

Citing Articles

An overview on Sjögren's syndrome and systemic lupus erythematosus' genetics.

Ates I, Terzi U, Suzen S, Irham L Toxicol Res (Camb). 2025; 14(1):tfae194.

PMID: 39991010 PMC: 11847510. DOI: 10.1093/toxres/tfae194.


Association of tyrosine kinase 2 polymorphisms with susceptibility to microscopic polyangiitis in a Guangxi population.

Yang B, Chu L, Feng F, Lu S, Xue C PeerJ. 2024; 12:e18735.

PMID: 39726748 PMC: 11670758. DOI: 10.7717/peerj.18735.


From early methods for DNA diagnostics to genomes and epigenomes at high resolution during four decades - a personal perspective.

Syvanen A Ups J Med Sci. 2024; 129.

PMID: 39691779 PMC: 11650520. DOI: 10.48101/ujms.v129.11134.


SPATS2L is a positive feedback regulator of the type I interferon signaling pathway and plays a vital role in lupus.

Chen M, Zhang Y, Shi W, Song X, Yang Y, Hou G Acta Biochim Biophys Sin (Shanghai). 2024; .

PMID: 39099414 PMC: 11693870. DOI: 10.3724/abbs.2024132.


Genomic variants associated with age at diagnosis of childhood-onset type 1 diabetes.

Bougneres P, Le Fur S, Kamatani Y, Mai T, Belot M, Perge K J Hum Genet. 2024; 69(11):585-590.

PMID: 38982180 DOI: 10.1038/s10038-024-01272-3.


References
1.
Sanghera D, Manzi S, Bontempo F, Nestlerode C, Kamboh M . Role of an intronic polymorphism in the PDCD1 gene with the risk of sporadic systemic lupus erythematosus and the occurrence of antiphospholipid antibodies. Hum Genet. 2004; 115(5):393-8. DOI: 10.1007/s00439-004-1172-0. View

2.
Barnes B, Kellum M, Pinder K, Frisancho J, Pitha P . Interferon regulatory factor 5, a novel mediator of cell cycle arrest and cell death. Cancer Res. 2003; 63(19):6424-31. View

3.
Namjou B, Nath S, Kilpatrick J, Kelly J, Reid J, Reichlin M . Genome scan stratified by the presence of anti-double-stranded DNA (dsDNA) autoantibody in pedigrees multiplex for systemic lupus erythematosus (SLE) establishes linkages at 19p13.2 (SLED1) and 18q21.1 (SLED2). Genes Immun. 2002; 3 Suppl 1:S35-41. DOI: 10.1038/sj.gene.6363905. View

4.
Izaguirre A, Barnes B, Amrute S, Yeow W, Megjugorac N, Dai J . Comparative analysis of IRF and IFN-alpha expression in human plasmacytoid and monocyte-derived dendritic cells. J Leukoc Biol. 2003; 74(6):1125-38. DOI: 10.1189/jlb.0603255. View

5.
Barnes B, Lubyova B, Pitha P . On the role of IRF in host defense. J Interferon Cytokine Res. 2002; 22(1):59-71. DOI: 10.1089/107999002753452665. View