07
Jan
Data represent the mean and SD of 3 experiments. found to safeguard AML cells from CTL-mediated lysis. Spontaneous B7-H1 expression was discovered to become improved upon relapse in a few individuals also. MEK inhibitors, including AZD6244 and UO126, reduced B7-H1 appearance and restored CTL-mediated lysis of blast cells. In AML, B7-H1 appearance by blasts represents a feasible immune system escape mechanism. The inducibility of B7-H1 appearance by TLR or IFN- ligands shows that several stimuli, either produced through the immune system response against leukemia cells or released by infectious microorganisms, could secure leukemic cells from T cells. The efficiency of…