scholarly journals Relationship of a leukemia-associated antigen to the presence of lymphoblasts in the peripheral blood in children with acute lymphocytic leukemia

Blood ◽  
1981 ◽  
Vol 57 (5) ◽  
pp. 879-882 ◽  
Author(s):  
E Morgan ◽  
CC Hsu
Keyword(s):  
Peripheral Blood ◽  
Acute Lymphocytic Leukemia ◽  
Rabbit Antiserum ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Newly Diagnosed ◽  
Indirect Immunofluorescent Assay ◽  
Negative Surface ◽  
Relationship Of ◽  
Indirect Immunofluorescent

Abstract Peripheral blood samples from 57 children with newly diagnosed E- rosette-negative, surface-immunoglobulin negative acute lymphocytic leukemia (ALL) were studied for the presence of a leukemia-associated antigen (ALLA). Ficoll-Hypaque separated cells were tested using a rabbit antiserum to human null lymphoblasts and an indirect immunofluorescent assay. The percentage of ALLA-positive cells were compared to the percentage of lymphoblasts determined by differential counts of a Wright-Giemsa-stained smear of a concurrently obtained peripheral blood sample. The mean ratio of percentage of lymphoblasts to percentage of ALLA-positive cells was 0.90. However, in 13 patients, the ratio of percent of ALLA-positive cells to percent of lymphoblasts was equal to or greater than 2:1. In the blood of 6 additional children (5 newly diagnosed, 1 relapsed patient) in whom no morphologically identifiable lymphoblasts were detected. ALLA-positive cells were present (7%-49%). These results indicate that testing for ALLA-positive cells in a sensitive technique for detection of leukemic cells in children with ALLA-positive ALL.

scholarly journals Relationship of a leukemia-associated antigen to the presence of lymphoblasts in the peripheral blood in children with acute lymphocytic leukemia

Blood ◽  
1981 ◽  
Vol 57 (5) ◽  
pp. 879-882
Author(s):  
E Morgan ◽  
CC Hsu
Keyword(s):  
Peripheral Blood ◽  
Acute Lymphocytic Leukemia ◽  
Rabbit Antiserum ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Newly Diagnosed ◽  
Indirect Immunofluorescent Assay ◽  
Negative Surface ◽  
Relationship Of ◽  
Indirect Immunofluorescent

Peripheral blood samples from 57 children with newly diagnosed E- rosette-negative, surface-immunoglobulin negative acute lymphocytic leukemia (ALL) were studied for the presence of a leukemia-associated antigen (ALLA). Ficoll-Hypaque separated cells were tested using a rabbit antiserum to human null lymphoblasts and an indirect immunofluorescent assay. The percentage of ALLA-positive cells were compared to the percentage of lymphoblasts determined by differential counts of a Wright-Giemsa-stained smear of a concurrently obtained peripheral blood sample. The mean ratio of percentage of lymphoblasts to percentage of ALLA-positive cells was 0.90. However, in 13 patients, the ratio of percent of ALLA-positive cells to percent of lymphoblasts was equal to or greater than 2:1. In the blood of 6 additional children (5 newly diagnosed, 1 relapsed patient) in whom no morphologically identifiable lymphoblasts were detected. ALLA-positive cells were present (7%-49%). These results indicate that testing for ALLA-positive cells in a sensitive technique for detection of leukemic cells in children with ALLA-positive ALL.

scholarly journals A unique surface marker profile in T-cell acute lymphocytic leukemia

Blood ◽  
1980 ◽  
Vol 55 (4) ◽  
pp. 702-705
Author(s):  
ER Richie ◽  
MP Sullivan ◽  
J van Eys
Keyword(s):  
T Cell ◽  
Peripheral Blood ◽  
Acute Lymphocytic Leukemia ◽  
Early Stage ◽  
Mixed Lymphocyte Culture ◽  
Lymphocyte Culture ◽  
Surface Marker ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Surface Marker Analysis

A 5-yr-old girl with acute lymphocytic leukemia presented with moderate hepatomegaly, marked splenomegaly, but no evidence of a mediastinal mass. The peripheral blood white count was 270 x 10(9)/liter with 99% leukemic cells. Surface marker analysis showed the lymphoblasts to be E- rosette negative and complement receptor positive. The patient's leukemic cells were unreactive with anti-p23,30, which detects Ia-like antigens, and strongly reactive with A99 anti-T-cell serum, which reacts with normal human thymocytes and peripheral blood T cells. The percentage of leukemic cells bearing complement receptors diminished during relapse. The leukemic cells obtained at diagnosis and during relapse were nonreactive to mitogens and alloantigens and failed to stimulate proliferation of normal lymphocytes in mixed lymphocyte culture. There was no evidence for active suppression of normal lymphocyte reactivity mediated by the leukemic cells. The surface marker and functional profile of these leukemic cells is consistent with that of an early stage in T-cell maturation.

scholarly journals A unique surface marker profile in T-cell acute lymphocytic leukemia

Blood ◽  
1980 ◽  
Vol 55 (4) ◽  
pp. 702-705 ◽  
Author(s):  
ER Richie ◽  
MP Sullivan ◽  
J van Eys
Keyword(s):  
T Cell ◽  
Peripheral Blood ◽  
Acute Lymphocytic Leukemia ◽  
Early Stage ◽  
Mixed Lymphocyte Culture ◽  
Lymphocyte Culture ◽  
Surface Marker ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Surface Marker Analysis

Abstract A 5-yr-old girl with acute lymphocytic leukemia presented with moderate hepatomegaly, marked splenomegaly, but no evidence of a mediastinal mass. The peripheral blood white count was 270 x 10(9)/liter with 99% leukemic cells. Surface marker analysis showed the lymphoblasts to be E- rosette negative and complement receptor positive. The patient's leukemic cells were unreactive with anti-p23,30, which detects Ia-like antigens, and strongly reactive with A99 anti-T-cell serum, which reacts with normal human thymocytes and peripheral blood T cells. The percentage of leukemic cells bearing complement receptors diminished during relapse. The leukemic cells obtained at diagnosis and during relapse were nonreactive to mitogens and alloantigens and failed to stimulate proliferation of normal lymphocytes in mixed lymphocyte culture. There was no evidence for active suppression of normal lymphocyte reactivity mediated by the leukemic cells. The surface marker and functional profile of these leukemic cells is consistent with that of an early stage in T-cell maturation.

scholarly journals Chemokine Receptors CCR1 and CCR2 on Peripheral Blood Mononuclear Cells of Newly Diagnosed Patients with the CD38-Positive Chronic Lymphocytic Leukemia

2020 ◽  
Vol 9 (7) ◽  
pp. 2312
Author(s):  
Irina Kholodnyuk ◽  
Alla Rivkina ◽  
Laura Hippe ◽  
Simons Svirskis ◽  
Svetlana Kozireva ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Sequence Similarity ◽  
Association Studies ◽  
Rank Correlation ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Newly Diagnosed ◽  
Peripheral Blood Mononuclear

Chemokines and their receptors direct migration and infiltration of immune cells. CCR1 and CCR2 maintain sequence similarity and respond to a number of the same chemokines secreted in lymphoid organs. Expression of CD38 on leukemic cells has been associated with poor clinical outcomes in patients with chronic lymphocytic leukemia (CLL) and is considered as the negative predictor of progression. In our study of newly diagnosed CLL patients, which included 39 CD38-positive and 22 CD38-negative patients, CCR1 and/or CCR2 were always detected, using flow cytometry, on the peripheral blood (PB) CD19+CD5+ lymphocytes in patients with >30% of the CD38+ CD19+CD5+ lymphocytes (n = 16). Spearman’s rank correlation analysis determined correlations between the frequency of the CCR1- and CCR2-expressing PB CD19+CD5+ lymphocytes and the frequency of the CD38-positive CD19+CD5+ lymphocytes (rs = 0.50 and rs = 0.38, respectively). No significant correlations were observed between ZAP70 mRNA expression levels in PB mononuclear cells and the frequency of the circulating CCR1+ or CCR2+ CD19+CD5+ lymphocytes. Further association studies are needed to verify prognostic relevance of the CCR1/CCR2 expression on leukemic cells in CLL patients at diagnosis. We suggest that CCR1/CCR2 signaling pathways could represent attractive targets for development of CLL anti-progression therapeutics.

scholarly journals PERIPHERAL BLOOD LYMPHOCYTE PHENOTYPE OF ZAP-70+ AND ZAP-70− PATIENTS WITH B-CELL CHRONIC LYMPHOCYTIC LEUKAEMIA

2015 ◽  
Vol 37 (1) ◽  
pp. 73-76 ◽  
Author(s):  
A Rivkina ◽  
I Holodnuka Kholodnyuk ◽  
M Murovska ◽  
M Soloveichika ◽  
S Lejniece
Keyword(s):  
Peripheral Blood ◽  
Immune Status ◽  
Lymphocytic Leukaemia ◽  
Disease Process ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Cd4 Cells ◽  
Cd8 Cells ◽  
Zeta Chain ◽  
Lymphocyte Phenotypes

Background: Up to now, the immune status of chronic lymphocytic leukemia (CLL) patients in association with the expression of zeta-chain-associated protein kinase 70 (ZAP-70) in leukemic cells has not been evaluated. Aim: The aim of this work was the study of the peripheral blood (PB) T-lymphocyte phenotypes in ZAP-70-positive (ZAP-70+) and ZAP-70-negative (ZAP-70−) untreated patients with CLL. Materials and Methods: ZAP-70-, CD25-, CD3-, CD4-, and CD8-positive lymphocytes were enumerated by flow cytometry in PB of 120 untreated CLL patients. CD8+, CD3+CD4+ and CD3+CD25+ cells were counted for the non-leukemic lymphocytes. Results: The patients were distributed into two groups: the ZAP-70+ group of high CLL progression (n = 61), and the ZAP-70− group of low CLL progression (n = 59). In the ZAP-70+ group, the ratio CD4/CD8 (0.33 ± 0.62; p = 0.001) and the numbers of the CD3+ (34.8 ± 8.1%; p = 0.01), CD3+CD4+ (24.4% ± 4.8; p = 0.001), and CD3+CD25+ (6.2 ± 0.91%; p = 0.001) lymphocytes were reduced and the percentage of the CD8+ cells (73.1 ± 4.6%; p = 0.0001) was above the norm. In the ZAP-70− group, the number of the CD3+CD4+ cells (36.9 ± 6.1%; p = 0.001) was within the norm, but the numbers of the CD8+ (11.3 ± 1.1%; p = 0.0001) and CD3+ (41.2 ± 5.3%; p = 0.05) lymphocytes were reduced; the ratio CD4/ CD8 (3.26 ± 0.88; p = 0.001) and the percentage of the CD3+CD25+ cells (27.1 ± 3.4%; p = 0.0001) were above the norm. Conclusions: Our data show that the increased CD4/CD8 ratio, caused by the reduced number of the CD8+ lymphocytes, and the increased number of CD3+CD25+ cells are characteristic for the ZAP-70− group (slow progressing) of untreated CLL patients. In ZAP-70+ patients, the CD4/CD8 ratio was significantly below the norm indicating an active disease process. Results of our study contribute to identification of CLL patients with different prognosis in routine diagnostic/prognostic procedures.

Monoglycerides induce apoptosis in human leukemic cells while sparing normal peripheral blood mononuclear cells

Blood ◽  
2003 ◽  
Vol 101 (1) ◽  
pp. 292-294 ◽  
Author(s):  
Fabianne Philippoussis ◽  
Chantal Arguin ◽  
Véronique Mateo ◽  
Ann-Muriel Steff ◽  
Patrice Hugo
Keyword(s):  
Peripheral Blood Mononuclear Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Human Peripheral Blood ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Major Drawback ◽  
Peripheral Blood Mononuclear ◽  
Normal Peripheral Blood ◽  
Blood Mononuclear Cells

Abstract A major drawback of the current antineoplastic treatments is their lack of specificity toward cancer cells, because they are most often cytotoxic to normal cells, thus creating related side effects. Hence, the identification of new apoptosis-inducing agents, specifically targeting malignant cells while sparing their normal counterparts, is of crucial interest. We show here that monoglycerides, a family of lipids consisting of a single fatty acid attached to a glycerol backbone, induce cell death in several human leukemic cell lines. Importantly, treatment of primary leukemic cells, obtained from B-cell chronic lymphocytic leukemia patients, resulted in rapid apoptosis. In striking contrast, resting or activated human peripheral blood mononuclear cells from healthy individuals were resistant to the same treatment. Therefore, these compounds could represent potential antileukemic drugs or could allow for the design of novel therapeutic agents applied to leukemia.

scholarly journals Activation of the interleukin-3 gene by chromosome translocation in acute lymphocytic leukemia with eosinophilia [see comments]

Blood ◽  
1990 ◽  
Vol 76 (2) ◽  
pp. 285-289 ◽  
Author(s):  
TC Meeker ◽  
D Hardy ◽  
C Willman ◽  
T Hogan ◽  
J Abrams
Keyword(s):  
Acute Lymphocytic Leukemia ◽  
Chromosome Translocation ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Interleukin 3 ◽  
Gm Csf ◽  
Macrophage Colony Stimulating Factor ◽  
Macrophage Colony ◽  
B Lineage ◽  
Stimulating Factor

Abstract The t(5;14)(q31;q32) translocation from B-lineage acute lymphocytic leukemia with eosinophilia has been cloned from two leukemia samples. In both cases, this translocation joined the IgH gene and the interleukin-3 (IL-3) gene. In one patient, excess IL-3 mRNA was produced by the leukemic cells. In the second patient, serum IL-3 levels were measured and shown to correlate with disease activity. There was no evidence of excess granulocyte/macrophage colony stimulating factor (GM-CSF) or IL-5 expression. Our data support the formulation that this subtype of leukemia may arise in part because of a chromosome translocation that activates the IL-3 gene, resulting in autocrine and paracrine growth effects.

scholarly journals Interferon system in primary acute lymphocytic leukemia cells with or without deletions of the alpha-/beta-interferon genes

Blood ◽  
1992 ◽  
Vol 79 (8) ◽  
pp. 2076-2083 ◽  
Author(s):  
D Grander ◽  
M Heyman ◽  
K Brondum-Nielsen ◽  
Y Liu ◽  
E Lundgren ◽  
...  
Keyword(s):  
Acute Lymphocytic Leukemia ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Malignant Cells ◽  
Oligoadenylate Synthetase ◽  
Gene Deletions ◽  
Functional Studies ◽  
Cell Clones ◽  
Alpha Beta

Abstract Various aspects of the interferon (IFN) system were studied in malignant cells from 37 unselected patients with acute lymphocytic leukemia (ALL). It was found that leukemic cells from two of 37 patients had a complete loss of alpha- and beta-IFN genes, whereas cells from four of 37 had lost one of the alpha-/beta-IFN alleles. In 25 cases, viable cells were also available for functional studies. Cell clones with loss of one of the alpha-/beta-IFN alleles produced low amounts of IFN after virus induction in vitro. Some clones with an apparently normal set of IFN genes were unable to produce detectable amounts of IFN. All clones studied were found to carry high-affinity alpha-IFN receptors. In clones carrying deletions of IFN genes, the cells were sensitive to IFN in vitro as measured by alpha-IFN-induced enhancement of 2′,5′-oligoadenylate synthetase (2′,5′-A synthetase). Cells from four patients with an apparently normal set of IFN genes were insensitive to this effect of IFN. We conclude that of the 17 patients in which IFN genes, IFN production, alpha-IFN receptors, and IFN-induced enhancement of 2′,5′-A synthetase were studied, nine (53%) showed some abnormality in their IFN system. This finding may add some support to the hypothesis that defects in the IFN system could be a step on the path to malignant transformation in ALL. Moreover, patients whose malignant cells carry IFN gene deletions or other defects in their IFN-producing capacity, but are still sensitive to exogenous IFN, could represent a subgroup of ALL with a greater likelihood of responding to IFN therapy.

scholarly journals Left shift in the peripheral blood count at diagnosis in acute lymphocytic leukemia is significantly correlated with duration of complete remission

Blood ◽  
1984 ◽  
Vol 63 (1) ◽  
pp. 216-218 ◽  
Author(s):  
BJ Shen ◽  
H Ekert ◽  
GP Tauro ◽  
A Balderas
Keyword(s):  
Complete Remission ◽  
Peripheral Blood ◽  
Acute Lymphocytic Leukemia ◽  
Blood Count ◽  
Prognostic Significance ◽  
Lymphocytic Leukemia ◽  
Indirect Measure ◽  
Cox Regression Analysis ◽  
Peripheral Blood Count ◽  
Left Shift

Abstract The prognostic significance of a left shift in the peripheral blood at the time of diagnosis of acute lymphocytic leukemia was investigated by a retrospective analysis of 109 patients treated on the same protocol in a single institution. Left shift was defined as the presence of 1% or more of metamyelocytes, myelocytes, or promyelocytes. All peripheral blood films were checked at the time of diagnosis by one of the authors. It was found that the duration of complete remission at 92 mo was 74% in patients with left shift and 42% in those without left shift (p less than 0.05, log-rank test). By Cox regression analysis, only the total white cell count (p less than 0.001) and the presence or absence of left shift (p less than 0.01) were independently significant in determining the proportion of patients in complete remission. Patients with a left shift had a significantly higher granulocyte count at diagnosis (p less than 0.05). We postulate that left shift in the peripheral blood count at the time of diagnosis may be an indirect measure of the total leukemia cell load. It is a new prognostic factor of significance in determining the likely outcome of the disease.

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