Abstract：
BACKGROUND/AIMS:Jumping translocations are rare cytogenetic aberrations in haematological malignancies, the pathogenesis of which remains to be fully characterised. We investigated the mechanism of formation of jumping translocations in a case of adult common acute lymphoblastic leukaemia (ALL) positive for the Ph translocation. METHODS:Interphase and metaphase fluorescence in situ hybridisation (FISH) was performed using several probe systems. Results were correlated with findings on conventional cytogenetics. Granulocytes, T-cells and leukaemic B-cells in peripheral blood were sorted by immunomagnetic method and the terminal restriction fragment (TRF) length of these cellular populations was determined by Southern blot analysis. RESULTS:Duplicated BCR-ABL fusion signals were found on a dic(14;22)der(22)t(9;22) chromosome. Clonal jumping translocations, existing as evolutionary changes, involved the donor chromosomal segment distal to 1q12 jumping onto the telomere ends of 11q, 15p, 19p and 20p. Telomere length was decreased in the neoplastic B-cell population and contributed to the formation of the dicentric chromosome that showed absence of telomere repeats at fusion ends. Subsequent pericentromeric heterochromatin decondensation of chromosome 1q occurred, and this donor segment was randomly fused to the shortened telomere ends of non-homologous chromosomes. CONCLUSIONS:Both telomere shortening and pericentromeric heterochromatin decondensation contribute to the formation of jumping translocations, which is most probably a multi-stage process.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Wan TS,Ma SK,Chow EY,Li YH,Lin SY,Chan LCdoi
10.1016/j.leukres.2004.01.021keywords:
subject
Has Abstractpub_date
2004-10-01 00:00:00pages
1075-9issue
10eissn
0145-2126issn
1873-5835pii
S0145212604000670journal_volume
28pub_type
杂志文章abstract：:The binding of peripheral blood mononuclear cells of 7 patients with plasma cell leukemia to rat lymph node high endothelial venules has been studied in vitro. The mononuclear cells adhered selectively to the high endothelial venules. Their neoplastic origin was proved by in situ demonstration of their monoclonal cyto...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(89)90100-8
更新日期：1989-01-01 00:00:00
abstract：:miR-16, a miRNA involved in cell proliferation and apoptosis regulation, may interfere with either oncogenic or tumor-suppressor pathways and is implicated in leukemogenesis. We then explored its expression in 93 childhood acute lymphoblastic leukemia (ALL) cases. A high miR-16 expression was associated with hyperleuk...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.12.015
更新日期：2009-09-01 00:00:00
abstract：:We have recently established the MV4-11 acute myelogenous leukemia (AML) subline, designated as MV4-11 TP53 R248W, which possesses a missense mutation (CGG→TGG; R248W) in the TP53 gene, leading to inactivation of this transcription factor. DNA methyltransferase (DNMT) inhibitor 5-Aza-2'-deoxycytidine (5-AzadC) induced...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2011.04.004
更新日期：2011-07-01 00:00:00
abstract：:Using the human erythroleukaemic cell line K562 cl.6 and its daunorubicin-resistant subline K/DAU600, and the human T-lymphoblastic leukaemic cell line CCRF-CEM and its vinblastine-resistant subline CEM/VLB100, we have shown that the drug-resistant cell lines were more sensitive to cytotoxicity induced by tumour necro...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(94)00149-5
更新日期：1995-03-01 00:00:00
abstract：:We report single institution outcome of brief, intensive ara-C-based chemotherapy using bone marrow transplantation as primary intensification for untreated adult patients with acute lymphoblastic leukemia (ALL). Overall disease-free and overall survival were inferior to those reported with prolonged chemotherapy mode...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(01)00175-8
更新日期：2002-05-01 00:00:00
abstract：:All-trans-retinoic acid (ATRA) has been proven active against a range of malignancies in isolated tissue culture systems and in human clinical trials, but the duration of its effects has been transient. Recent evidence indicates that the basis for the limited duration of ATRA's activity, at least in one form of leukem...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(94)90040-x
更新日期：1994-08-01 00:00:00
abstract：:We have previously reported that serum stem factor (SCF) levels are significantly lower in patients with myelodysplastic syndrome (MDS) than normal controls. We have now studied the effects of adding SCF to cultures of blood mononuclear cells from patients with MDS and normal subjects. Three of 17 patients with MDS sh...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(95)00034-l
更新日期：1995-08-01 00:00:00
abstract：BACKGROUND:The skin is the common extranasal sites in extranodal natural killer (NK) / T - cell lymphoma, (ENKTL). However, data regarding cutaneous ENKTL are relatively scarce. Thus, we performed a large retrospective study to analyze clinical features and treatment outcomes of cutaneous ENKTL. PATIENTS AND METHODS:S...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2019.106284
更新日期：2020-01-01 00:00:00
abstract：:In adult T-cell leukemia/lymphoma (ATL), it is difficult to achieve remission and the reason for the resistance to chemotherapeutic agents may be linked to the presence of multidrug resistance (MDR) proteins. Lung resistance-related protein (LRP), multidrug resistance-associated protein and P-glycoprotein are three MD...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.10.012
更新日期：2007-04-01 00:00:00
abstract：:Although there has been much progress in the treatment of acute lymphoblastic leukemia (ALL), decreased sensitivity to chemotherapy remains a significant issue. Recent studies have shown how interactions with the bone marrow microenvironment can protect ALL cells from chemotherapy and allow for the persistence of the ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2017.01.030
更新日期：2017-05-01 00:00:00
abstract：:Dietary bioflavonoids are secondary metabolites of plants that are known to have a variety of bio-effects, including anti-cancer activity. In this study, we examined the effects of flavonoids on the growth of human leukemia cells and found that certain flavonoids induce apoptosis in a variety of human leukemia cells. ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2004.11.015
更新日期：2005-05-01 00:00:00
abstract：:To highlight dasatinib role in the elderly, 125 unselected patients with CP-CML aged >60 years resistant/intolerant to imatinib were retrospectively evaluated. Grade 3-4 haematological and extra-haematological toxicities were reported in 39 (31.2%) and 34 (27.2%) patients; grade 3-4 haematological toxicity was higher ...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2011.05.015
更新日期：2011-09-01 00:00:00
abstract：:Malignant plasma cells exert osteoclast-like activity in vitro. We investigated the function of the calcitonin (CT) receptor (R) on myeloma cells from patients and in myeloma cell lines. Primary myeloma cells expressed high CTR levels whereas the cell lines uniformly exposed the CTR-2 variant expressed by osteoclasts....
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.07.009
更新日期：2008-04-01 00:00:00
abstract：:Despite high rates of hematologic and cytogenetic responses to imatinib therapy, the emergence of resistance to imatinib has been recognized as a major problem in the treatment of Ph-positive leukemia. The high frequency of BCR-ABL mutations and amplifications represents the high degree of heterogeneity in patients wi...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2003.10.007
更新日期：2004-05-01 00:00:00
abstract：:It has been suggested that acidic isoferritins play a major role in the regulation of human granulocyte-macrophage (CFU-GM) proliferation. Such regulatory isoferritins are said to occur in some human tissues including both leukaemic and normal leucocytes, and certain established cell lines. They are glycosylated and b...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(84)90065-1
更新日期：1984-01-01 00:00:00
abstract：:Delta retrovirus-mediated leukemogenesis is dependent on the oncogenic potential of Tax. It is not clear, however, whether Tax-specific immune responses play a role in leukemia onset and progression. Using the BLV-associated leukemia model in sheep, we found that Tax-specific cytotoxic responses induced by DNA immuniz...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.06.003
更新日期：2010-12-01 00:00:00
abstract：:To increase our knowledge of the pathogenesis of tumour recurrence, cell membrane phenotypes were determined on bone marrow and extramedullary tumour cells at diagnosis and at relapse in 24 children with lymphoid malignancies. There were 19 patients with acute lymphoblastic leukemia and five with non-Hodgkin's lymphom...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(82)90058-3
更新日期：1982-01-01 00:00:00
abstract：:The study was undertaken to elucidate the regulatory roles of GMP reductase (GMPR) and IMP dehydrogenase (IMPDH) on purine interconversion during differentiation. Treatment of HL-60 cells with retinoic acid (1 microM) induced granulocytic differentiation which was accompanied with a 2.4-fold increase in GMPR and 55% d...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90002-o
更新日期：1992-06-01 00:00:00
abstract：:microRNA profiling of acute myeloid leukemia patient samples identified miR-125a as being decreased. Current literature has investigated miR-125a's role in normal hematopoiesis but not within acute myeloid leukemia. Analysis of the upstream region of miR-125a identified several CpG islands. Both precursor and mature m...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2013.12.021
更新日期：2014-03-01 00:00:00
abstract：:Treatment failure of patients with acute myelogenous leukemia (AML) is frequently due to the development of multidrug resistance phenotype blasts. We have expressed a fusion protein consisting of human granulocyte-macrophage colony stimulating factor (GMCSF) fused to the N-terminus of a lectin-deficient ricin toxin B ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(97)00043-x
更新日期：1997-07-01 00:00:00
abstract：:Anti-MY9 is an IgG2b murine monoclonal antibody selected for reactivity with immature normal human myeloid cells. The MY9 antigen is expressed by blasts, promyelocytes and myelocytes in the bone marrow, and by monocytes in the peripheral blood. Erythrocytes, lymphocytes and platelets are MY9 negative. All myeloid colo...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(84)90001-8
更新日期：1984-01-01 00:00:00
abstract：:Chemosensitivity of purified AML blasts to daunomycin was examined under conditions of CSF stimulation and compared with clinical outcome of DNR combination chemotherapy. AML blasts from 16 patients were purified, incubated serum-free in the presence of optimal concentrations of a complete cocktail of IL-3, GM-CSF and...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(90)90166-7
更新日期：1990-01-01 00:00:00
abstract：:Clofarabine (CLO), a purine nucleoside analog with promising efficacy in acute myeloid leukemia (AML), inhibits the ribonucleotidereductase, p53R2. We have shown that p53R2 mRNA is up-regulated by decitabine (DEC), another drug with promising activity in AML. We developed a pharmacodynamic model to characterize the in...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.07.015
更新日期：2012-11-01 00:00:00
abstract：:We investigated the therapeutic activity of recombinant erythropoietin (r-EPO) in association with thalidomide in 30 patients with myelodysplastic syndromes (MDS), previously treated with r-EPO (n.15, group A) or thalidomide (n.15, group B) as single agents, respectively, without any significant benefit on their anemi...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2005.08.020
更新日期：2006-04-01 00:00:00
abstract：:The effects of prostaglandin (PG)E1, PGD2 and 9-deoxy-delta 9-PGD2 (PGJ2) on the clonogenic growth of six kinds of human leukemic cell lines (K562, KG1, HL60, U937, THP1 and Molt4) and normal human myeloid progenitor cells (CFU-GM) were studied using semisolid agar cultures. While the degree of suppression of leukemic...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(86)90087-1
更新日期：1986-01-01 00:00:00
abstract：:The culture supernatants from 43 human cell lines obtained during log phase and from purified normal peripheral blood B-lymphocytes cultured at 10(6) cells ml-1 for 48 h in RPMI 1640-5% fetal calf serum were examined for interleukin-8 (IL-8) using Elisa kits. Constitutive IL-8 production was found for 14/15 B-cell lin...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(93)90164-g
更新日期：1993-12-01 00:00:00
abstract：:The effect of VM-26, a topoisomerase II targeting drug, on IW32 murine erythroleukemia cells was investigated. The VM-26 induced IW32 cells to differentiate at a non-toxic but cytostatic concentration (0.01 microgram/ml). More than 40% of the cells were induced to synthesize hemoglobin, and cells were arrested in G2/M...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(95)00144-1
更新日期：1996-03-01 00:00:00
abstract：:Changes of phosphoprotein patterns in HL-60 cells were studied during short exposures to 1 alpha, 25-dihydroxyvitamin D3 [1,25(OH)2D3]. One hundred nanometers 1,25(OH)2D3 dephosphorylated at least three proteins in 6 h: phosphoproteins with molecular weights of 82 kD (pp82), 33 kD (pp33), and 31 kD (pp31). Phosphoryla...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(91)90169-t
更新日期：1991-01-01 00:00:00
abstract：:Chronic B-lymphocytic leukemia (B-CLL) cells may be regulated by immune functions. In an attempt to analyze such functions, helper factors (IL-1 alpha, IL-1 beta and IL-6), T-cell products (sCD4 and sCD8) and sIL-2R and beta 2-microglobulin were measured in serum of patients at different stages of the disease. Patient...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90009-v
更新日期：1992-06-01 00:00:00
abstract：:Philadelphia-positive chronic myeloid leukemia (Ph+ CML) patients who are resistant to imatinib are commonly treated with second-generation tyrosine kinase inhibitors (TKIs). Limited data exist on the possible effects of these drugs on subsequent allogeneic hematopoietic stem cell transplantation (allo-HSCT).The outco...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2009.04.036
更新日期：2010-02-01 00:00:00
