Figure 2.

Tα1② protein promotes the proliferation of mouse spleen lymphocytes. Control group: Cultured cells were exposed to 2.5μg/ml ConA only; Tα1②group: Cultured cells were exposed to 2.5μg/ml ConA and various concentrations (7.5μg/ml, 15μg/ml, 30μg/ml and 60μg/ml) ofTα1②;Tα1 group: Cultured cells were exposed to 2.5μg/ml ConA and various concentrations (7.5μg/ml, 15μg/ml, 30μg/ml and 60μg/ml) of Tα1. Cell proliferation was determined by the MTT viability assay. The assays were repeated in triplicate. The data are expressed as the mean±S.E.M. of groups consisting of three observations. (**P<0.005, ***P<0.001)