Mediadores inflamatorios sericos na paracoccidioidomicose humana / Serum levels of inflammatory mediators in human paracoccidioidomycosis

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

IL-18 is a pro-inflammatory cytokine of the IL-1 superfamily that exhibits broad functional effects in innate and acquired immune responses and which has been found in high levels in several chronic inflammatory and autoimmune diseases. Over-expression of IL-18 may promote early resolution of infection or could induce a detrimental exaggerated immune response. The aim of this study was to determine serum levels of IL-18 and other inflammatory mediators (IL-12, sICAM-1, sTNFRI, sTNFRII, CXCL9, CXCL10) at baseline and after antifungal therapy in serum from patients with juvenil (JF) and adult form (AF) of paracoccidioidomycosis (PCM) as well as in healthy controls (C), and to assess their possible relationships to the severity of disease. IL-18 and sTNFRII levels in patients with the JF of PCM were significantly higher than in the AF and controls. In relation to sICAM-1, no difference was observed between JF and AF but both presented higher levels than controls. sTNFRI levels were higher in patients with PCM than in controls, and significant higher concentrations were detected in AF patients as compared to JF ones. Moreover IL-12 and chemokines CXCL9 and CXCL10 were also higher in patients than in controls. In JF patients IL-18 levels significantly correlated with sICAM-1 (r=0.62, p<0.0001), sTNFRI (r=0.61, p<0.0001), sTNFRII (r=0.64, p=0.002), as well as with clinical severity. The results suggest the value of serum IL-18 and sTNFRs levels as a parameter of PCM severity and may support a possible role for them in the pathogenesis of the disease

ASSUNTO(S)

enzyme-linked immunosorbent assay cytokines paracoccidioides brasiliensis citocinas inflamação teste imunoenzimatico inflammation paracoccidioidomycosis elisa

ACESSO AO ARTIGO

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