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Pemphigus vulgaris (PV) is a chronic autoimmune blistering disease of the skin, in which loss of adhesion between keratinocytes is caused by autoantibodies. It has been hypothesized that cytokines play an essential role in the pathogenesis of PV. This study aimed to investigate the other immunopathological aspects of PV by determining the serum levels of cytokines in PV patients to find another treatment strategy except corticosteroid therapy. Twenty-three patients with PV and a control group consisting of 24 healthy subjects were studied. Interleukin (IL)-2, IL-4, IL-6, IL10, IL-12, IL-17 and interferon-gamma (IFN-γ) were measured in the sera of patients by the enzyme-linked immunosorbent assay (ELISA) method. The serum levels of IL-2, IL-4, IL-17 and IFN-γ in most patients and controls were undetectable. The serum concentrations of IL-10 in the patients and controls were undetectable, nevertheless, the mean serum levels of this cytokine was 64.375 pg/mL in four patients. The mean serum levels of pro-inflammatory cytokine IL-6 increased significantly in the patients, compared to the controls (169.50 vs. 75.62 pg/mL) (P