Cellular immune response evaluation of cutaneous leishmaniasis patients cells stimulated with Leishmania (Viannia) braziliensis antigenic fractions before and after clinical cure.

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 Immunol

journal_title

Cellular immunology

authors

Brelaz-de-Castro MC,de Almeida AF,de Oliveira AP,de Assis-Souza M,da Rocha LF,Pereira VR

doi

10.1016/j.cellimm.2012.11.006

subject

Has Abstract

pub_date

2012-10-01 00:00:00

pages

180-6

issue

2

eissn

0008-8749

issn

1090-2163

pii

S0008-8749(12)00200-6

journal_volume

279

pub_type

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