Use of protein antigens for early serological diagnosis of leprosy

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dc.creatorDuthie, Malcolm S.
dc.creatorGoto, Wakako
dc.creatorIreton, Greg C.
dc.creatorReece, Stephen T.
dc.creatorCardoso, Ludimila Paula Vaz
dc.creatorMartelli, Celina Maria Turchi
dc.creatorStefani, Mariane Martins de Araújo
dc.creatorNakatani, Maria
dc.creatorJesus, Robson Crusue de
dc.creatorNetto, Eduardo Martins
dc.creatorBalagon, Ma V. F.
dc.creatorTan, Esterlina
dc.creatorGelber, Robert H.
dc.creatorMaeda, Yumi
dc.creatorMakino, Masahiko
dc.creatorHoft, Dan
dc.creatorReed, Steven G.
dc.date.accessioned2019-01-11T11:12:02Z
dc.date.available2019-01-11T11:12:02Z
dc.date.issued2007-11
dc.description.abstractLeprosy is a chronic and debilitating human disease caused by infection with the Mycobacterium leprae bacillus. Despite the marked reduction in the number of registered worldwide leprosy cases as a result of the widespread use of multidrug therapy, the number of new cases detected each year remains relatively stable. This indicates that M. leprae is still being transmitted and that, without earlier diagnosis, M. leprae infection will continue to pose a health problem. Current diagnostic techniques, based on the appearance of clinical symptoms or of immunoglobulin M (IgM) antibodies that recognize the bacterial phenolic glycolipid I, are unable to reliably identify early-stage leprosy. In this study we examine the ability of IgG within leprosy patient sera to bind several M. leprae protein antigens. As expected, multibacillary leprosy patients provided stronger responses than paucibacillary leprosy patients. We demonstrate that the geographic locations of the patients can influence the antigens they recognize but that ML0405 and ML2331 are recognized by sera from diverse regions (the Philippines, coastal and central Brazil, and Japan). A fusion construct of these two proteins (designated leprosy IDRI diagnostic 1 [LID-1]) retained the diagnostic activity of the component antigens. Upon testing against a panel of prospective sera from individuals who developed leprosy, we determined that LID-1 was capable of diagnosing leprosy 6 to 8 months before the onset of clinical symptoms. A serological diagnostic test capable of identifying and allowing treatment of early-stage leprosy could reduce transmission, prevent functional disabilities and stigmatizing deformities, and facilitate leprosy eradication.pt_BR
dc.identifier.citationDUTHIE, Malcolm S. et al. Use of protein antigens for early serological diagnosis of leprosy. Clinical and Vaccine Immunology, Washington, v. 14, n. 11, p. 1400-1408, 2007.pt_BR
dc.identifier.doi10.1128/CVI.00299-07
dc.identifier.issn1556-6811
dc.identifier.issne- 1556-679X
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/16712
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Patologia Tropical e Saúde Pública - IPTSP (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.titleUse of protein antigens for early serological diagnosis of leprosypt_BR
dc.typeArtigopt_BR

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