M90 inhibits the outgrowth of L3055 cells plated at limiting population densities.

L3055 cells (wild-type) were plated in 20 flat-bottom microwells containing 200 μL culture medium for each number indicated. After 7 days, the wells were scored for those with successful outgrowth. M90 and OKT3 were present at 5 μg/mL and sCD40L at 0.2 ng/mL as indicated