Retinoids, which are derivatives of vitamin A, induce differentiation of acute promyelocytic leukemia (APL) cells in vitro and in patients. However, APL cells develop resistance to retinoic acid treatment. Arsenic trioxide (As2O3) can induce clinical remission in patients with APL, including those who have relapsed after retinoic acid treatment, by inducing apoptosis (programmed cell death) of the leukemia cells. In this study, we investigated the molecular mechanisms by which As2O3 induces apoptosis in retinoic acid-sensitive NB4 APL cells, in retinoic acid-resistant derivatives of these cells, and in fresh leukemia cells from patients.
|Titolo:||Arsenic trioxide as an inducer of apoptosis and loss of PML/RAR alpha protein in acute promyelocytic leukemia cells|
|Parole Chiave:||Apoptosis; Blotting, Northern; Electrophoresis, Polyacrylamide Gel; Humans; Transglutaminases; Blotting, Western; Receptors, Retinoic Acid; Tumor Cells, Cultured; Down-Regulation; Antineoplastic Combined Chemotherapy Protocols; Leukemia, Promyelocytic, Acute; Tretinoin; Flow Cytometry; Arsenicals; Oxides|
|Settore Scientifico Disciplinare:||Settore MED/04 - Patologia Generale|
|Data di pubblicazione:||21-gen-1998|
|Appare nelle tipologie:||01 - Articolo su periodico|