No available abstract.
Leukemia, Promyelocytic, Acute*

No abstract available.
Carboxylesterase* ; Leukemia, Promyelocytic, Acute*

No abstract available.
Leukemia, Promyelocytic, Acute*

No abstract available.
Humans ; Leukemia, Promyelocytic, Acute* ; Teratoma*

No abstract available.
Leukemia, Promyelocytic, Acute ; Translocation, Genetic

All-trans retinoic acid (ATRA) is a highly effective treatment for acute promyelocytic leukemia (APL), a cytogenetically distinct subtype of acute myeloid leukemia (AML). However, ATRA-based treatment is not effective in other subtypes of AML. In non-APL AML, ATRA signaling pathway is impaired or downmodulated, and consequently fails to respond to pharmacological doses of ATRA. Therefore, complementary treatment strategies are needed to improve ATRA responsiveness in non-APL AML. In this study, we investigated the combined effect of ATRA and bromodomain inhibitor JQ1, proven to have potent anti-cancer activity mainly through inhibition of c-Myc. We showed that the combination of ATRA with JQ1 synergistically inhibited proliferation of AML cells. The synergistic growth inhibition was resulted from differentiation or apoptosis depending on the kind of AML cells. Concomitantly, the combined treatment of ATRA and JQ1 caused greater depletion of c-Myc and hTERT expression than each agent alone in AML cells. Taken together, these findings support the rationale for the use of the combination of ATRA and JQ1 as a therapeutic strategy for the treatment of AML.
Apoptosis ; Leukemia ; Leukemia, Myeloid, Acute ; Leukemia, Promyelocytic, Acute ; Tretinoin

Humans ; Leukemia, Promyelocytic, Acute ; diagnosis ; therapy

Background: In Vietnam, there are a number of studies on the application of ATRA in treating acute promyelocytic leukemia (AML \u2013 M3) but they have still faced with certain difficulties. Objectives: (1). Study PML/RAR alpha fusion gene on the patients diagnosed with AML \u2013 M3. (2). Study the index of hematology of the PML/RAR alpha positive group. Subject and Method: 21 patients with acute promyelocytic leukemia (M3) were studied. All patients were examined with morphology, coagulation and cytogenetic tests and RNA were extracted from leukemic cells and PCR for PML/RAR alpha fusion transcript. Result and conclusion: PML/RAR alpha positive in 67% including 4 patients which were not discovered t(15; 17) by cytogenetic technique. Rates of three subtype (bcr1, bcr2 and bcr3) of PML/RAR alpha were 7 patients (50%), 3 patients (21,5%) and 4 patients (28,5%), respectively. WBC and bone marrow cells of PML/RAR alpha positive group were 5.08+/-3.87 and 155.82+/-106.21. D \u2013 Dimer level was 1954.89+/-1575.28; 93% of patients in the PML/RAR alpha positive group had DIC.
Acute promyelocytic leukemia ; M3 ; PML/RAR alpha

46 patients with acute promyelocytic leukemia (APL) have been treated by ATRA (all trans retinoic acid). The result showed that 33 patients (72%) were complete remission. Two patients in relapse have been treated by ATRA plus As2O3 (arsenic trioside). The both patients were complete remission. The results of the present study showed that ATRA is standard drug of remission of induction in APL.
Leukemia, Promyelocytic, Acute ; therapy ; drug therapy ; therapeutics

No abstract available.
Leukemia, Promyelocytic, Acute* ; Postpartum Hemorrhage* ; Postpartum Period*