Leukocytes express a major sialoglycoprotein, leukosialin, of which the apparent molecular weight (mol wt) can be variable according to the differences in 0-glycans attached to this molecule. In the present study, we analyzed the structures of 0-glycans attached to leukosialin present in various T-lymphocytic leukemia cells. T-lymphoid cells from patients with acute T-lymphocytic leukemia expre...

Systemic mastocytosis with associated clonal haematological non-mast cell lineage disease (SM-AHNMD) is a heterogeneous group of mast cell disorders with different clinical, pathologic and underlying molecular characteristics. While myelomonocytic/myeloid neoplasia overwhelmingly predominates the AHNMD component, lymphoproliferative disorders rarely occur as an AHNMD component of SM-AHNMD. Here...

Leukocytes express a major sialoglycoprotein, leukosialin, of which the apparent molecular weight (mol wt) can be variable according to the differences in 0-glycans attached to this molecule. In the present study, we analyzed the structures of 0-glycans attached to leukosialin present in various T-lymphocytic leukemia cells. T-lymphoid cells from patients with acute T-lymphocytic leukemia expre...

Cytidine triphosphate synthetase (CTP synthetase) activity was measured in extracts from normal and malignant lymphoid cells. A range of enzyme activities was found in the majority of the lymphoproliferative disorders examined, with acute lymphocytic leukemia, nodular poorly differentiated lymphocytic lymphoma, and diffuse histiocytic (large cell) lymphoma (DHL) types exhibiting the widest rang...

BACKGROUND In spite of potent first-line therapies for chronic lymphocytic leukemia, treatment remains palliative and all patients frequently relapse. Treatment options for these patients are more limited. BL22 is a recombinant protein composed of the variable region of a monoclonal antibody that binds to CD22 and of PE38, a truncated Pseudomonas exotoxin. BL22 is a very potent drug already use...

BACKGROUND Optimal lymphocyte parameters and thresholds for the diagnosis of chronic lymphocytic leukemia have been proposed by The National Cancer Institute sponsored Working Group and recently updated by the International Workshop on chronic lymphocytic leukemia. However, it is not clear how these criteria apply to patient management in daily clinical practice and whether the lymphocyte thres...


 Acute Lymphocytic leukemia (ALL) is the most common childhood malignancy, CNS involvement occurs in 3-5% of patients. We present a case 14-year-old boy who presented to us with nighttime fever, headache, and right-sided focal fits. Reports showed decreased platelets, increased WBC predominant eosinophils imaging subgaleal, epidural subdural collection. Bone marrow biopsy CSF analysis wer...

BACKGROUND Chronic lymphocytic leukemia and chronic myeloid leukemia are the most common types of adult leukemia. However, it is rare for the same patient to suffer from both. Richter's transformation to diffuse large B-cell lymphoma is frequently observed in chronic lymphocytic leukemia. Purine analog therapy and the presence of trisomy 12, and CCND1 gene rearrangement have been linked to incr...

chromatin-associated DNA-directed DNA polymerase activity, and the soluble RNase-sensitive endogenous DNA polymerase activity were examined in two fibroblast cell lines (WI-38 and WI-38VA13), in thirteen lymphoid cell lines originated from normal persons or from acute lymphocytic leukemia, acute myelocytic leukemia, Burkitt lymphoma, or multiple myeloma patients, and also in cells obtained dire...