volume 191, issue 11, P5542-5550 2013
DOI: 10.4049/jimmunol.1301810
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Kevin J. Esch, Rachel Juelsgaard, Pedro A. Martinez, Douglas E. Jones, Christine A. Petersen

Abstract: Control of Leishmania infantum infection is dependent upon Th1 CD4+ T cells to promote macrophage intracellular clearance of parasites. Deficient CD4+ T cell effector responses during clinical visceral leishmaniasis (VL) are associated with elevated production of IL-10. In the primary domestic reservoir of VL, dogs, we define occurrence of both CD4+ and CD8+ T cell exhaustion as a significant stepwise loss of antigen-specific proliferation and IFNγ production, corresponding to increasing VL symptomatology. Ex…

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