Association between P-glycoprotein and lymphoid antigen expression on myeloblasts versus therapy response and survival in de novo acute myeloid leukemia: long-term follow-up results.

P-glycoprotein (PGP) over-expression on malignant cells is associated with poor prognosis and treatment outcome due to the development of a multidrug resistance phenotype. In this study, we analyzed the correlation between expression of PGP and lymphoid antigens (Ly) on leukemic myeloblasts versus response to therapy and survival in acute myeloid leukemia (AML). Fifty-one consecutive patients, aged 16-75 (median age 44.

Status of minimal residual disease after induction predicts outcome in both standard and high-risk Ph-negative adult acute lymphoblastic leukaemia. The Polish Adult Leukemia Group ALL 4-2002 MRD Study.

The treatment of adults with Philadelphia-negative acute lymphoblastic leukaemia (ALL) depends on the presence of risk factors including age, white blood cell count, immunophenotype and time to complete remission. In recent years, status of minimal residual disease (MRD) has been postulated as an additional risk criterion. This study prospectively evaluated the significance of MRD.

The microarray expression analysis identifies BAX as a mediator of beta-carotene effects on apoptosis.

Beta-carotene is a ubiquitous compound rich in foods. However, there are conflicting reports regarding its role in carcinogenesis. We performed a microarray expression analysis in normal [human umbilical vein endothelial cells (HUVECs)] and neoplastic (melanoma A375 and myelomonocytic leukemia U937) actively proliferating cells and found evidence that beta-carotene stimulated vital cellular functions in the former and suppressed them in the latter.