TRIB2 and acute lymphoblastic leukemia: To further evaluate the cyclic TRIB2 expression, we synchronized RPMI-8402, a T-cell acute lymphoblastic leukemia (T-ALL) cell line by a single thymidine block, and monitored the level of TRIB2 mRNA andTRIB2 protein levels as the synchronized cells progressed through the cell cycle following thymidine removal.