Blimp-1 expression by Treg cells has little influence over host immune responses and parasite growth during experimental visceral leishmaniasis.

<p><i>Prdm1</i>^fl/fl and <i>Prdm1</i>^ΔTreg C57BL/6 mice were infected with <i>L</i>.<i>donovani</i>. Spleen and liver weights (<b>A</b>), parasite burdens (<b>B</b>), frequency of Th1 (<b>C</b>) and Tr1 (<b>D</b>) cells, as well as serum TNF and IFNγ levels (<b>E</b>) were measured at day 28 p.i.. Experiment performed once, mean ±SEM, n = 5, *p<0.05, Mann-Whitney U test.