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dc.creatorMendes, Ana Luisa Gomes-
dc.creatorJoaquim, Heloísa Di Matteo-
dc.creatorZamae, Mara Inês Stefanini-
dc.creatorAssis, Ramon Meira-
dc.creatorPeixoto, Jéssica Renata de Moura-
dc.creatorAraújo, Margarida Maria Gomes de-
dc.creatorGuedes, Antônio Carlos Martins-
dc.creatorOliveira, Edward José-
dc.creatorMagalhães, Vanessa Peruhype-
dc.creatorPascoal-Xavier, Marcelo Antônio-
dc.date.accessioned2020-08-12T18:41:47Z-
dc.date.available2020-08-12T18:41:47Z-
dc.date.issued2020-
dc.identifier.citationMENDES, A. L. G. et al. Expression of NLRP3 inflammasome in leprosy indicates immune evasion of Mycobacterium leprae. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 115, 2020.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/42385-
dc.description.abstractBACKGROUND Leprosy is an infectious-contagious disease caused by Mycobacterium leprae that remain endemic in 105 countries. This neglected disease has a wide range of clinical and histopathological manifestations that are related to the host inflammatory and immune responses. More recently, the inflammasome has assumed a relevant role in the inflammatory response against microbiological agents. However, the involvement of inflammasome in leprosy remains poorly understood. OBJECTIVES The aim is to associate biomarkers of inflammasome with the different immunopathological forms of leprosy. METHODS We performed an observational, cross-sectional, and comparative study of the immunophenotypic expression of inflammasome-associated proteins in immunopathological forms of leprosy of 99 skin lesion samples by immunohistochemistry. The intensity and percentage of NLRP3, Caspase-1, Caspases-4/5, interleukin-1β and interleukin-18 immunoreactivities in the inflammatory infiltrate of skin biopsies were evaluated. FINDINGS Strong expression of NLRP3 and inflammatory Caspases-4/5 were observed in lepromatous leprosy (lepromatous pole). In addition, were observed low expression of caspase-1, interleukin-1β, and interleukin-18 in tuberculoid and lepromatous leprosy. The interpolar or borderline form showed immunophenotype predominantly similar to the lepromatous pole. MAIN CONCLUSIONS Our results demonstrate that the NLRP3 inflammasome is inactive in leprosy, suggesting immune evasion of M. leprae.pt_BR
dc.languageen_USpt_BR
dc.publisherInstituto Oswaldo Cruz, Ministério da Saúdept_BR
dc.rightsacesso abertopt_BR
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceMemórias do Instituto Oswaldo Cruzpt_BR
dc.subjectLeprosypt_BR
dc.subjectInflammasomept_BR
dc.subjectCaspasept_BR
dc.titleExpression of NLRP3 inflammasome in leprosy indicates immune evasion of Mycobacterium lepraept_BR
dc.typeArtigopt_BR
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