Figure 2: L91 elicits Th1 but not Th2 response. The cells obtained from immunized mice were cultured with L91, F91, Pam2Cys or medium alone for 48 h. Secretion of cytokines in the culture supernatants was measured by ELISA. The results depicted as bar diagrams show the change in ratio of (a) IFN-ã and IL-4; (b) IFN-ã and IL-10. Data are expressed as the mean ± SD and are pooled data from 3 independent experiments with 3-4 mice per group. **P<0.003.