Abstract:
:American cutaneous leishmaniasis (ACL) is a disease where susceptibility or resistance is dependent on T cell response. This is characterized by an increased in CD4⁺ T cells, capable of inducing opposite disease profiles, and CD8⁺ T cells, that are related to immuno protection. We characterized T lymphocytes from patients before and after treatment, patients that spontaneously healed and controls, also evaluating their production of IL-10, IL-4, TNF-α and IFN-γ, after stimulation with soluble/insoluble antigenic fractions of Leishmania (Viannia) braziliensis. We observed the production of suppressive cytokines in the early phase of leishmaniasis with significant presence CD4⁺ T cells, suggesting their connection with disease progression. After healing, the immune pattern observed was a type 1 response, what seems to be associated with cure and/or protection in the ACL. The results also showed that both fractions induced a specific immune response, contributing to the search for relevant antigens in this disease.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Brelaz-de-Castro MC,de Almeida AF,de Oliveira AP,de Assis-Souza M,da Rocha LF,Pereira VRdoi
10.1016/j.cellimm.2012.11.006subject
Has Abstractpub_date
2012-10-01 00:00:00pages
180-6issue
2eissn
0008-8749issn
1090-2163pii
S0008-8749(12)00200-6journal_volume
279pub_type
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