Figure 6. Virulence is recovered after in vitro or in vivo promastigote-amastigote differentiation process.
BMMø were infected at a 1∶10 (cell/parasite) ratio with non-purified promastigotes differentiated from in vitro axenic amastigotes (A) or ex-vivo intracellular amastigotes (B). As a control, a naturally attenuated strain (Aten) was submitted to the same experimental conditions. Data were acquired by FACScalibur cytometer and analyzed by FlowJo software. Three independent experiments were performed; one representative experiment is shown. The mean and standard deviation are shown. *P<0,05; **P<0,01.