کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2407360 1103122 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Epitope mapping and protective immunity elicited by adenovirus expressing the Leishmania amastigote specific A2 antigen: Correlation with IFN-γ and cytolytic activity by CD8+ T cells
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Epitope mapping and protective immunity elicited by adenovirus expressing the Leishmania amastigote specific A2 antigen: Correlation with IFN-γ and cytolytic activity by CD8+ T cells
چکیده انگلیسی

A2 was identified as an amastigote virulence factor of Leishmania (Leishmania) donovani and as a candidate antigen for vaccine development against visceral leishmaniasis. Here, predicted hydrophilic, class I and II MHC-binding synthetic peptides were used to define epitopes recognized by A2-specific antibodies, CD8+ T and CD4+ T cells, respectively. Immunization of BALB/c mice with adenovirus expressing A2 (AdA2) resulted in low antibody response, contrasting with high levels of IFN-γ producing CD4+ T and CD8+ T cells specific for A2. Further, A2-specific CD8+ T cells from immunized mice were capable of lysing sensitized target cells in vivo. Finally, we demonstrated an association of A2-specific T cell responses and reduced parasitism in both liver and spleen from mice immunized with AdA2 and challenged with L. (L.) chagasi.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vaccine - Volume 26, Issue 35, 18 August 2008, Pages 4585–4593
نویسندگان
, , , , , , , , , , , ,