Mitogenic response of murine splenocytes induced by (A) concanavalin A (Con A) and (B) brown kidney bean lectin.

Con A acted as the positive control, and its mitogenic activity was blocked in the presence of mannose. Brown kidney bean lectin exhibited maximal mitogenic activity on murine splenocytes at 2.5 µM. Its activity was attenuated by glucosamine. Data represent mean±SD (n = 3).