Different Kinetic Pattern of Chronic Myeloid Leukemia: Lymphoblastic and Myeloblastic Blastic Crisis

1980 ◽  
Vol 66 (3) ◽  
pp. 295-303
Author(s):  
Wanda Piacibello ◽  
Massimo Aglietta ◽  
Felice Gavosto

Cell kinetic studies were performed in 8 ease of lymphoid blastic crisis (BC) of chronic myeloid leukemia at the onset of BC and during subsequent relapses. The results were compared with those found in 7 myeloblastic BC. While in the myeloblastic transformation the labeling index (LI) was always higher in bone marrow than in peripheral blood blasts, suggesting a predominant bone marrow proliferation of the leukemic cells, in the lymphoid transformation a higher LI was often found in peripheral blasts. Moreover, the lymphoblastic transformations were frequently characterized by lymphadenopathy. These findings point to the similarities between lymphoid BC and acute lymphoblastic leukemia, suggesting the possibility that a blastic event may originate in an extramedullary site and that an extramedullary BC is more likely to be lymphoid in nature.

Blood ◽  
1990 ◽  
Vol 76 (1) ◽  
pp. 136-141
Author(s):  
J van Denderen ◽  
D van der Plas ◽  
T Meeuwsen ◽  
N Zegers ◽  
W Boersma ◽  
...  

Philadelphia (Ph′)-positive acute lymphoblastic leukemia (ALL) is highly associated with two forms of chimeric bcr-abl proteins: P190bcr- abl and P210bcr-abl. Whereas P210bcr-abl also occurs in chronic myeloid leukemia, P190bcr-abl is uniquely expressed in Ph′-positive ALL. As a consequence, P190bcr-abl is preeminently a tumor-specific marker in leukemic cells of ALL patients. Because P190bcr-abl is composed of the normal bcr and abl proteins, the major part of the P190bcr-abl molecule comprises nontumor-specific determinants. The joining region between bcr and abl, newly generated during the Ph′ translocation, is exclusively a tumor-specific epitope on the P190bcr-abl molecule. Therefore, only antibodies against the bcr-abl joining region will detect the tumor-specificity of P190bcr-abl. In this study a polyclonal antiserum, termed BP-ALL, was raised against a synthetic peptide corresponding to the bcr-abl junction in P190bcr-abl. The reactivity of BP-ALL with native P190bcr-abl derived from a Ph′-positive ALL cell line (TOM-1) was tested using immunoprecipitation analysis. BP-ALL reacted highly specifically with P190bcr-abl but not with P210bcr-abl isolated from chronic myeloid leukemia cell lines. Peptide inhibition studies further confirmed the fine specificity of BP-ALL. Our data indicate that the tumor-specific bcr-abl junction domain is exposed in an antigenic fashion on the P190bcr-abl molecule.


Blood ◽  
1990 ◽  
Vol 76 (1) ◽  
pp. 136-141 ◽  
Author(s):  
J van Denderen ◽  
D van der Plas ◽  
T Meeuwsen ◽  
N Zegers ◽  
W Boersma ◽  
...  

Abstract Philadelphia (Ph′)-positive acute lymphoblastic leukemia (ALL) is highly associated with two forms of chimeric bcr-abl proteins: P190bcr- abl and P210bcr-abl. Whereas P210bcr-abl also occurs in chronic myeloid leukemia, P190bcr-abl is uniquely expressed in Ph′-positive ALL. As a consequence, P190bcr-abl is preeminently a tumor-specific marker in leukemic cells of ALL patients. Because P190bcr-abl is composed of the normal bcr and abl proteins, the major part of the P190bcr-abl molecule comprises nontumor-specific determinants. The joining region between bcr and abl, newly generated during the Ph′ translocation, is exclusively a tumor-specific epitope on the P190bcr-abl molecule. Therefore, only antibodies against the bcr-abl joining region will detect the tumor-specificity of P190bcr-abl. In this study a polyclonal antiserum, termed BP-ALL, was raised against a synthetic peptide corresponding to the bcr-abl junction in P190bcr-abl. The reactivity of BP-ALL with native P190bcr-abl derived from a Ph′-positive ALL cell line (TOM-1) was tested using immunoprecipitation analysis. BP-ALL reacted highly specifically with P190bcr-abl but not with P210bcr-abl isolated from chronic myeloid leukemia cell lines. Peptide inhibition studies further confirmed the fine specificity of BP-ALL. Our data indicate that the tumor-specific bcr-abl junction domain is exposed in an antigenic fashion on the P190bcr-abl molecule.


Blood ◽  
1978 ◽  
Vol 52 (4) ◽  
pp. 712-718 ◽  
Author(s):  
SD Smith ◽  
EM Uyeki ◽  
JT Lowman

Abstract An assay system in vitro for the growth of malignant lymphoblastic colony-forming cells (CFC) was established. Growth of malignant myeloblastic CFC has been previously reported, but this is the first report of growth of malignant lymphoblastic CFC. Established assay systems in vitro have been very helpful in elucidating the control of growth and differentiation of both normal and malignant bone marrow cells. Lymphoblastic CFC were grown from the bone marrow aspirates of 20 children with acute lymphoblastic leukemia. Growth of these colonies was established on an agar assay system and maintained in the relative hypoxia (7% oxygen) of a Stulberg chamber. The criteria for malignancy of these colonies was based upon cellular cytochemical staining characteristics, the presence of specific cell surface markers, and the ability of these lymphoid cells to grow without the addition of a lymphoid mitogen. With this technique, specific nutritional requirements and drug sensitivities can be established in vitro, and these data may permit tailoring of individual antileukemic therapy.


1982 ◽  
Vol 68 (3) ◽  
pp. 257-263 ◽  
Author(s):  
Mario Cazzola ◽  
Giulio Nalli ◽  
Ercole Brusamolino ◽  
Maurizio Daccò ◽  
Angela Ghizzi ◽  
...  

Five of 40 patients with chronic myeloid leukemia (CML) had lymphoid blast crisis and 4 of them achieved complete remission of metamorphosis with vincristine and prednisone. While in hematologic remission, two of these subjects developed meningeal leukemia. Clinical and biologic data indicated that the course of the disease after lymphoid blast crisis was very similar to that of acute lymphoblastic leukemia (ALL). It is suggested that patients with CML who develop lymphoid blast crisis should be treated with an intensive therapeutic protocol including early prevention of meningeal leukemia.


Blood ◽  
1989 ◽  
Vol 74 (4) ◽  
pp. 1355-1359 ◽  
Author(s):  
MX Zhou ◽  
HW Jr Findley ◽  
AH Ragab

Abstract We are reporting here that low-mol wt B-cell growth factor (LMW-BCGF) and recombinant interleukin-2 (rIL-2) are together able to induce CD3+ cytotoxic T lymphocytes (CTL) with lymphokine-activated killer cell (LAK) activity from the bone marrow (BM) cells of children with acute lymphoblastic leukemia (ALL). Ficoll-Hypaque (FH)-separated BM cells were obtained from patients with active disease (at diagnosis N = 13, in relapse N = 15) and in complete remission (CR; N = 12). CD3+ cells were removed by Leu-4 antibody and immunobeads. Cells were cultured (10(5) cells/mL) in semisolid media with rIL-2 (100 mu/mL), LMW-BCGF (0.1 mu/mL), and the combination of rIL-2 plus LMW-BCGF, respectively, for seven to ten days. Pooled colonies were harvested for phenotyping. LMW-BCGF plus rIL-2 induced large numbers of CD3+ colonies from CD3- precursors. rIL-2 alone did not induce colony formation. In addition, cells were cultured in liquid media with LMW-BCGF, rIL-2, and the combination of LMW-BCGF plus rIL-2, respectively, for seven to 21 days. They were harvested for phenotyping, and cytotoxicity assays were performed v K562, Raji, and autologous leukemic cells. LMW-BCGF plus rIL-2 induced significant expansion of CD3+ cells from CD3- precursors, and these cells were activated to kill autologous leukemic cells in addition to Raji and K562 cell lines. LMW-BCGF or rIL-2 alone did not induce significant expansion or activation of cytotoxic CD3- cells. Our hypothesis is that LMW-BCGF plus rIL-2 stimulates the proliferation and activation of CD3- precursors from the BM cells of children with acute leukemia to become CD3+ cells that have LAK activity. This finding may have therapeutic implications.


Blood ◽  
1987 ◽  
Vol 70 (3) ◽  
pp. 873-876 ◽  
Author(s):  
TS Ganesan ◽  
GL Min ◽  
JM Goldman ◽  
BD Young

Abstract Four patients with Philadelphia (Ph′) positive chronic myeloid leukemia (CML) were studied before, after, and on relapse following allogeneic bone marrow transplantation (BMT). Southern analysis of DNA from cells collected before and at relapse after BMT was performed in order to investigate the origin of the leukemia at relapse. Using minisatellite probes we showed that the relapse occurred in cells of host origin in all four patients and this was confirmed with a Y chromosome specific probe in two male patients who had a female donor. Furthermore, using two probes for the breakpoint cluster region (bcr) on chromosome 22, we showed that leukemic cells at relapse bore identical rearrangements to those in the disease at time of presentation of each patient. We conclude that relapse in all four patients is due to re-emergence of the original leukemic clone.


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