Abstract
BackgroundSystemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease involving multiple organs. Chemokines and their receptors play an important role in the pathogenesis of SLE. Lymphocytes expressing CXCR3, chemokine receptors of CXCL4, 9, 10, and 11, increase in patients with SLE and animal models, particularly in those with skin manifestations and nephritis. We investigated CXCR3 genetic polymorphisms in patients with SLE and their association with clinical manifestations. MethodsA total of 346 patients with SLE and 540 healthy controls were investigated for CXCR3 intron 1 polymorphisms rs2280964 and rs34334103 by Taqman analysis. Resultsrs2280964 and rs34334103 were not associated with all patients with SLE, but rs34334103 showed a significant association with male patients with SLE. Among the clinical manifestations, pleuritis was associated with the rs34334103 polymorphism. ConclusionThe CXCR3 polymorphism rs34334103 was associated with male gender and pleuritis in patients with SLE.
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