نتایج جستجو برای: precursor cell lymphoblastic leukemia
تعداد نتایج: 1812682 فیلتر نتایج به سال:
UNLABELLED Gene expression studies have consistently identified a HOXA-overexpressing cluster of T-cell acute lymphoblastic leukemias, but it is unclear whether these constitute a homogeneous clinical entity, and the biological consequences of HOXA overexpression have not been systematically examined. We characterized the biology and outcome of 55 HOXA-positive cases among 209 patients with adu...
Acute lymphoblastic leukemia/lymphoma, the malignant transformation of T-cell or B-cell precursors, is the most common diagnosis in pediatric oncology. Precursor T-cell acute lymphoblastic leukemia/lymphoma commonly affects adolescents, and is associated with mediastinal mass in over half of the cases, with early dissemination to bone marrow, gonads and the central nervous system. We present a ...
Abstract Central nervous system (CNS) involvement remains a challenge in the diagnosis and treatment of acute lymphoblastic leukemia (ALL). In this study, we identify CD79a (also known as Ig?), signaling component preB cell receptor (preBCR), to be associated with CNS-infiltration –relapse B-cell precursor (BCP)-ALL patients. Furthermore, show that downregulation hampers engraftment cells diffe...
Deletions and mutations affecting lymphoid transcription factor IKZF1 (IKAROS) are associated with an increased relapse risk and poor outcome in B-cell precursor acute lymphoblastic leukemia. However, additional genetic events may either enhance or negate the effects of IKZF1 deletions on prognosis. In a large discovery cohort of 533 childhood B-cell precursor acute lymphoblastic leukemia patie...
Chromosome abnormalities that usually define high-risk acute lymphoblastic leukemia are the t(9;22)/ breakpoint cluster region protein-Abelson murine leukemia viral oncogene homolog 1, hypodiploid with < 44 chromosomes and 11q23/ myeloid/lymphoid leukemia gene rearrangements. The spectrum of acute lymphoblastic leukemia genetic abnormalities is nevertheless rapidly expanding. Therefore, newly d...
Precursor B-cell lymphoblastic leukemia is primarily a disease of children with most cases occurring before the age of six. Approximately 3000 new cases of lymphoblastic leukemia were reported in the United States in 2000. The presence of isochromosomes is a relatively unusual finding. In the few published studies available, isochromosomes occur in between 1-4% of call cases of lymphoblastic le...
background: precursor b-acute lymphoblastic leukemia (precursor b-all) oc-curs due to the uncontrolled proliferation of b-lymphoid precursors arrested at a par-ticular stage of b-cell development. precursor-b-all is classified mainly into pro-b-all, common-all and pre-b-all. the common acute lymphoblastic antigen cd10 is the marker for common-all. objective: this study was aimed to examine the ...
Introduction . Identical twins are a unique model that can be used to assess the concordance of various diseases, including acute leukemia. It should noted leukemia is characterized with high in cases monovular or placentas adhesion, which confirms development this disease prenatal period. Aim — present clinical case successful diagnosis and treatment lymphoblastic identical twins. Main finding...
A primary extramedullary myeloid cell tumor (pEMT) of an inguinal lymph node was completely excised without subsequent anti-tumor therapy in a 6-year-old child. Clinical observation and monitoring of blood and bone marrow (BM) did not reveal any pathologic results before 32 months, when a precursor B lymphoblastic leukemia was diagnosed. Identical T-cell receptor gamma rearrangement in nodal pE...
In childhood B-cell precursor acute lymphoblastic leukemia, cytogenetics is important in diagnosis and as an indicator of response to therapy, thus playing a key role in risk stratification of patients for treatment. Little is known of the relationship between different cytogenetic subtypes in B-cell precursor acute lymphoblastic leukemia and the recently reported copy number abnormalities affe...
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