Author(s): Negrini, Thais De C. [UNESP] ; Ferreira, Lucas S. [UNESP] ; Arthur, Rodrigo A. ; Alegranci, Pâmela [UNESP] ; Placeres, Marisa C. P. [UNESP] ; Spolidorio, Luis C. [UNESP] ; Carlos, Iracilda Z. [UNESP]
Date: 2022
Persistent ID: http://hdl.handle.net/11449/227688
Origin: Oasisbr
Subject(s): Cytokines; Mice; Sporothrix schenckii; Sporotrichosis; TLR-2
Made available in DSpace on 2022-04-29T07:14:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01
Toll-like receptors (TLRs) play an important role in immunity, since they bind to pathogen surface antigens and initiate the immune response. However, little is known about the role of TLR-2 in the recognition of S. schenckii and in the subsequent immune response. Therefore, the aim of this study was to evaluate the involvement of TLR-2 in the immune response induced by S. schenckii. C57BL/6 mice (WT) and C57BL/6 TLR-2 knockout (TLR-2-/-) were used to evaluate, over a period of 10 weeks of sporotrichotic infection, the influence of TLR-2 over macrophages production of IL-1β, IL-12 and TNF-α, their stimulation level by NO release and the production of IFN-γ, IL-6, IL-17 and TGF-β by spleen cells. The results showed that the production of pro-inflammatory mediators and NO, TLR-2 interference is striking, since its absence completely inhibited it. IL-17 production was independent of TLR-2. The absence of Th1 response in TLR2-/- animals was concomitant with IL-17 production. Therefore, it can be suggested that TLR-2 absence interferes with the course of the infection induced by the fungus S. schenckii. © 2014 Informa Healthcare USA, Inc.
Department of Clinical Analysis, Araraquara School of Pharmaceutical Sciences, São Paulo State University, Rua Expedicionários do Brasil, no 1621, Araraquara, SP, CEP 14.801-902
Department of Preventive and Community Dentistry, School of Dentistry, Federal University of Rio Grande Do sul, RS
Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University, SP
Department of Clinical Analysis, Araraquara School of Pharmaceutical Sciences, São Paulo State University, Rua Expedicionários do Brasil, no 1621, Araraquara, SP, CEP 14.801-902
Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University, SP
