Expression of Leukocytic Syncytin-1 in B-Cell Acute Lymphoblastic Leukemia and Acute Myeloid Leukemia Patients

2017 ◽  
Vol 63 (10/2017) ◽  
Author(s):  
Yi Sun ◽  
Hongyan Zhu ◽  
Jianxin Song ◽  
Yaxian Jiang ◽  
Hongmei Ouyang ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Acute Lymphoblastic Leukemia ◽  
B Cell ◽  
Myeloid Leukemia ◽  
Lymphoblastic Leukemia ◽  
Cell Acute Lymphoblastic Leukemia ◽  
Acute Myeloid

Pure Erythroid Leukemia Following Precursor B-Cell Lymphoblastic Leukemia

2012 ◽  
Vol 15 (1) ◽  
pp. 76-78 ◽  
Author(s):  
Min Xu ◽  
Laura S. Finn ◽  
Karen D. Tsuchiya ◽  
Blythe Thomson ◽  
Jessica Pollard ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Acute Lymphoblastic Leukemia ◽  
B Cell ◽  
Myeloid Leukemia ◽  
Lymphoblastic Leukemia ◽  
Intensive Chemotherapy ◽  
First Report ◽  
Unusual Association ◽  
Cell Acute Lymphoblastic Leukemia ◽  
Acute Myeloid

Therapy-related acute myeloid leukemia is an unfortunate sequel to current multimodal intensive chemotherapy. The patient described was diagnosed with pure erythroleukemia, AML-M6b, during therapy for precursor B-cell acute lymphoblastic leukemia. To the best of our knowledge, this is the first report of this unusual association.

scholarly journals Poor Prognosis Biomolecular Factors Are Highly Frequent in Childhood Acute Leukemias From Oaxaca, Mexico

2020 ◽  
Vol 19 ◽  
pp. 153303382092843
Author(s):  
Gerardo Juárez-Avendaño ◽  
Nuria Citlalli Luna-Silva ◽  
Euler Chargoy-Vivaldo ◽  
Laura Alicia Juárez-Martínez ◽  
Mayra Noemí Martínez-Rangel ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Acute Lymphoblastic Leukemia ◽  
Acute Leukemia ◽  
B Cell ◽  
Myeloid Leukemia ◽  
Poor Prognosis ◽  
Lymphoblastic Leukemia ◽  
Acute Leukemias ◽  
Cell Acute Lymphoblastic Leukemia ◽  
Acute Myeloid

Objective: To investigate the cellular and molecular epidemiology of acute leukemias in vulnerable populations of children and adolescents in Oaxaca de Juarez, Mexico. Material and Methods: Descriptive, cross-sectional and retrospective study, conducted from 2014 to 2018 in which profiles of molecular and immunophenotypic aberrations were investigated in children and adolescents diagnosed with acute leukemia, by evaluating 28 molecular abnormalities by HemaVision-Q28 multiplex RT-PCR kit and standardized EuroFlow Immunophenotyping of bone marrow cells. Results: We included 218 patients, with 82.5% younger than 14 years and 17.5% adolescents. The median age was 9 years and a main peak of incidence was recorded at age of 4 to 5 years. B-cell acute lymphoblastic leukemia was diagnosed in 70.64% of all cases, acute myeloid leukemia was in 22.48%, T-cell acute lymphoblastic leukemia in 6.42%, and mixed lineage acute leukemia in 0.46% of cases. Overall, chromosomal translocations were positive in 29.82% of cases. While 65.31% of patients with acute myeloid leukemia reported aberrancies, only in 18.83% of B-cell acute lymphoblastic leukemia cases genetic abnormalities were obvious. Surprisingly, most prevalent translocations in B-cell acute lymphoblastic leukemia were t(9;22) in 20.7%, followed by t(4;11) in 17.2% and t(6;11) in 13.8%, whereas patients with acute myeloid leukemia showed t(15;17) in 40.6% and t(8;21) in 21.9%. In contrast, an homogeneous expression of t(3;21) and t(6;11) was recorded for T-cell acute lymphoblastic leukemia and mixed lineage acute leukemia cases, respectively. Except for t(1;19), expressed only by pre-B cells, there was no association of any of the studied translocations with differentiation stages of the B-leukemic developmental pathway. Conclusion: Our findings identify near 50% of patients with acute lymphoblastic leukemia at debut with high-risk translocations and poor prognosis in B-cell acute lymphoblastic leukemia as well as an unexpected increase of acute myeloid leukemia cases in young children, suggesting a molecular shift that support a higher incidence of poor prognosis cases in Oaxaca.

scholarly journals E2a/Pbx1 Induces the Rapid Proliferation of Stem Cell Factor-Dependent Murine Pro-T Cells That Cause Acute T-Lymphoid or Myeloid Leukemias in Mice

2004 ◽  
Vol 24 (3) ◽  
pp. 1256-1269 ◽  
Author(s):  
David B. Sykes ◽  
Mark P. Kamps
Keyword(s):  
T Cells ◽  
Acute Myeloid Leukemia ◽  
Stem Cell ◽  
Cell Division ◽  
Acute Lymphoblastic Leukemia ◽  
B Cell ◽  
Stem Cell Factor ◽  
Myeloid Leukemia ◽  
Lymphoblastic Leukemia ◽  
Acute Myeloid

ABSTRACT Oncoprotein E2a/Pbx1 is produced by the t(1;19) chromosomal translocation of human pre-B acute lymphoblastic leukemia. E2a/Pbx1 blocks differentiation of primary myeloid progenitors but, paradoxically, induces apoptosis in established pre-B-cell lines, and no transforming function of E2a/Pbx1 has been reported in cultured lymphoid progenitors. Here, we demonstrate that E2a/Pbx1 induces immortal proliferation of stem cell factor (SCF)-dependent pro-T thymocytes by a mechanism dependent upon both its transactivation and DNA-binding functions. E2a-Pbx1 cooperated with cytokines or activated signaling oncoproteins to induce cell division, as inactivation of conditional E2a/Pbx1 in either factor-dependent pro-T cells or pro-T cells made factor independent by expression of Bcr/Abl resulted in pro-T-cell quiescence, while reactivation of E2a/Pbx1 restored cell division. Infusion of E2a/Pbx1 pro-T cells in mice caused T lymphoblastic leukemia and, unexpectedly, acute myeloid leukemia. The acute lymphoblastic leukemia did not evidence further maturation, suggesting that E2a/Pbx1 establishes an early block in pro-T-cell development that cannot be overcome by marrow or thymic microenvironments. In an E2a/Pbx1 pro-T thymocyte clone that induced only pro-T acute lymphoblastic leukemia, coexpression of Bcr/Abl expanded its leukemic phenotype to include acute myeloid leukemia, suggesting that unique functions of cooperating signaling oncoproteins can influence the lymphoid versus myeloid character of E2a/Pbx1 leukemia and may cooperate with E2a/Pbx1 to dictate the pre-B-cell phenotype of human leukemia containing t(1;19).

scholarly journals Myelodysplastic Syndrome with Myelofibrosis Transformed to a Precursor B-Cell Acute Lymphoblastic Leukemia: A Case Report with Review of the Literature

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Ayed A. Algarni ◽  
Mojtaba Akhtari ◽  
Kai Fu
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
B Cell ◽  
Myeloid Leukemia ◽  
Lymphoblastic Leukemia ◽  
Review Of The Literature ◽  
Acute Leukemias ◽  
Allogenic Stem Cell Transplantation ◽  
Increased Risk ◽  
Cell Acute Lymphoblastic Leukemia ◽  
Acute Myeloid

Myelodysplastic syndromes (MDS) comprise a group of heterogeneous clonal hematopoietic cell disorders characterized by cytopenias, bone marrow hypercellularity, and increased risk of transformation to acute leukemias. MDS usually transformed to acute myeloid leukemia, and transformation to acute lymphoblastic leukemia (ALL) is rare. Herein, we report a unique patient who presented with MDS with myelofibrosis. Two months after the initial diagnosis, she progressed to a precursor B-cell acute lymphoblastic leukemia. She was treated with induction therapy followed by allogenic stem cell transplantation. She was alive and doing well upon last followup. We have also reviewed the literature and discussed the clinicopathologic features of 36 MDS patients who progressed to ALL reported in the literature.

scholarly journals CD38 as a therapeutic target for adult acute myeloid leukemia and T-cell acute lymphoblastic leukemia

Haematologica ◽  
2018 ◽  
Vol 104 (3) ◽  
pp. e100-e103 ◽  
Author(s):  
Jyoti Naik ◽  
Maria Themeli ◽  
Regina de Jong-Korlaar ◽  
Ruud W.J. Ruiter ◽  
Pino J Poddighe ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Acute Lymphoblastic Leukemia ◽  
T Cell ◽  
Therapeutic Target ◽  
Myeloid Leukemia ◽  
Lymphoblastic Leukemia ◽  
Cell Acute Lymphoblastic Leukemia ◽  
Acute Myeloid
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