About: BAALC is a research topic. Over the lifetime, 219 publications have been published within this topic receiving 29277 citations. The topic is also known as: brain and acute leukemia, cytoplasmic & BAALC, MAP3K1 and KLF4 binding.
TL;DR: Subgroup analysis demonstrated that the three cytogenetically defined prognostic groups retained their predictive value in the context of secondary as well as de novo AML, within the pediatric age group and furthermore were found to be a key determinant of outcome from autologous or allogeneic bone marrow transplantation (BMT) in first CR.
TL;DR: Cytoplasmic NPM is a characteristic feature of a large subgroup of patients with AML who have a normal karyotype, NPM gene mutations, and responsiveness to induction chemotherapy.
Abstract: Background Nucleophosmin (NPM), a nucleocytoplasmic shuttling protein with prominent nucleolar localization, regulates the ARF-p53 tumor-suppressor pathway. Translocations involving the NPM gene cause cytoplasmic dislocation of the NPM protein. Methods We used immunohistochemical methods to study the subcellular localization of NPM in bone marrow–biopsy specimens from 591 patients with primary acute myelogenous leukemia (AML). We then correlated the presence of cytoplasmic NPM with clinical and biologic features of the disease. Results Cytoplasmic NPM was detected in 208 (35.2 percent) of the 591 specimens from patients with primary AML but not in 135 secondary AML specimens or in 980 hematopoietic or extrahematopoietic neoplasms other than AML. It was associated with a wide spectrum of morphologic subtypes of the disease, a normal karyotype, and responsiveness to induction chemotherapy, but not with recurrent genetic abnormalities. There was a high frequency of FLT3 internal tandem duplications and absen...
TL;DR: In this paper, the authors analyzed the prevalence and the potential prognostic impact of FLT3 mutations in 979 acute myelogenous leukemia (AML) patients and found that a high mutant/wt ratio in ITD-positive patients appears to have a major impact on the prognostic relevance.
TL;DR: In this paper, the prognostic impact of cytogenetic abnormalities on complete remission (CR) rate, 5-year cumulative incidence of relapse (CIR), and 5-to-5-year overall survival (OS) of acute myeloid leukemia (AML) patients was investigated.
TL;DR: Genotypes defined by the mutational status of NPM1, FLT3, CEBPA, MLL, and MLL are associated with the outcome of treatment for patients with cytogenetically normal AML.
Abstract: Background Mutations occur in several genes in cytogenetically normal acute myeloid leukemia (AML) cells: the nucleophosmin gene (NPM1), the fms-related tyrosine kinase 3 gene (FLT3), the CCAAT/enhancer binding protein α gene (CEPBA), the myeloid–lymphoid or mixed-lineage leukemia gene (MLL), and the neuroblastoma RAS viral oncogene homolog (NRAS). We evaluated the associations of these mutations with clinical outcomes in patients. Methods We compared the mutational status of the NPM1, FLT3, CEBPA, MLL, and NRAS genes in leukemia cells with the clinical outcome in 872 adults younger than 60 years of age with cytogenetically normal AML. Patients had been entered into one of four trials of therapy for AML. In each study, patients with an HLA-matched related donor were assigned to undergo stem-cell transplantation. Results A total of 53% of patients had NPM1 mutations, 31% had FLT3 internal tandem duplications (ITDs), 11% had FLT3 tyrosine kinase–domain mutations, 13% had CEBPA mutations, 7% had MLL partial ...