Abstract：
:Chronic lymphocytic leukemia (CLL) cells were cultured in a medium supplemented with 0.01-1 ng/ml interleukin-4 (IL-4) for 18 h, fixed and analyzed on a flow cytometer. The percentage of apoptotic (AP) cells with hypodiploid DNA content was determined from DNA histograms. IL-4 at 0.01 ng/ml protected from spontaneous apoptosis of cells from previously treated CLL patients, but had very little effect on apoptotic death in cultures of cells from untreated patients. The number of AP cells in the absence of IL-4 was similar in cultures from treated and untreated patients. The concentration of IL-4 which inhibited spontaneous apoptosis by 50% was less than 0.01 ng/ml for pretreated patients and close to 1 ng/ml for untreated patients. Stage of the disease had no effect on the level of spontaneous apoptosis and its sensitivity to IL-4. Protection from apoptosis by IL-4 was not accompanied by the upregulation of bcl-2 protein. The number of AP cells in methylprednisolone hemisuccinate (MP) treated cultures from previously treated patients was significantly lower than in cultures from untreated patients in the presence of 0.01-1.0 ng/ml IL-4. Treatment with the combination L-phenylalanine mustard (L-PAM)+ fludarabine induced synergistic apoptotic response. Apoptosis induced by this combination was relatively resistant to IL-4 in patients treated with chlorambucil and prednisone, but not in patients previously treated with fludarabine. Protection from cytotoxicity by IL-4 may be one of the mechanisms of acquired drug resistance in CLL.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Frankfurt OS,Byrnes JJ,Villa Ldoi
10.1016/s0145-2126(96)00053-7subject
Has Abstractpub_date
1997-01-01 00:00:00pages
9-16issue
1eissn
0145-2126issn
1873-5835pii
S0145212696000537journal_volume
21pub_type
杂志文章abstract：:We examined the effect of deferasirox (DFX) on CD34+ hematopoietic progenitors from MDS patients. Progressive, dose-dependent suppression of MDS progenitor proliferation in culture was observed with DFX concentrations ranging from 5 μM to 20 μM. This effect was more pronounced in MDS compared to CD34+ progenitors isol...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.03.018
更新日期：2012-08-01 00:00:00
abstract：:Deletion in chromosome 9p involving the CDKN2A locus (9p21.3) is known in many malignancies. To detect this deletion in adolescent ALL patients we used oligo array CGH and studied 54 patients aged 10-25 years. Deletion rate was 25/54 (46%), of these 19/25 (76%) were homozygous. Small deletions (<200 kb) were found in ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.01.014
更新日期：2008-08-01 00:00:00
abstract：:Atypical chronic myeloid leukemia (aCML) and chronic neutrophilic leukemia (CNL) are rare BCR-ABL1 fusion gene-negative myeloid neoplasms with a predominance of neutrophils. Since no standard therapeutic strategy currently exists for these diseases, we retrospectively evaluated the outcomes of allogeneic hematopoietic...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2018.11.003
更新日期：2018-12-01 00:00:00
abstract：:Febrile neutropenia (FN) risk-assessment and granulocyte-colony stimulating factor (G-CSF) prophylaxis use in clinical practice was evaluated in patients with diffuse large B-cell lymphoma receiving R-CHOP-21. More G-CSF primary prophylaxis was used in patients assessed as high FN risk, but R-CHOP-21 was associated wi...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.02.002
更新日期：2012-05-01 00:00:00
abstract：:Several genetic polymorphisms in the genes coding folate-metabolizing enzymes have been associated with susceptibility to hematology malignancies. We conducted a Korean population-based case-control study to examine the relationship between the polymorphisms of folate-metabolizing enzymes and the risk of AML (acute my...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.07.026
更新日期：2009-01-01 00:00:00
abstract：:Myelodysplastic syndromes (MDS) and chronic myelomonocytic leukemia (CMML) may be underreported in cancer registries such as the Netherlands Cancer Registry (NCR). Analysis of Dutch medical claims can complement NCR data on MDS and CMML. We analyzed data on 3681 MDS patients and 235 CMML patients aged ≥18 years with i...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2014.11.025
更新日期：2015-02-01 00:00:00
abstract：:Glycosylation of cytokines appears to be responsible for several differences in their activity, and focusing on G-CSF, several divergences between the non-glycosylated G-CSF, Filgrastim, and the glycosylated G-CSF, Lenograstim, have been reported. To verify the role of G-CSF glycosylation in mediating these difference...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.05.027
更新日期：2011-02-01 00:00:00
abstract：:Assessment of treatment response in acute leukemia is routinely performed after therapy via bone marrow biopsy. We investigated the use of positron emission tomography (PET) for early assessment of treatment response in patients with acute myeloid leukemia (AML), using the proliferation marker 3'-deoxy-3'-[(18)F]fluor...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.06.010
更新日期：2011-03-01 00:00:00
abstract：:Adults with acute lymphoblastic leukemia (ALL) in first complete remission (CR1) may be treated either with ongoing systemic chemotherapy or with allogeneic hematopoietic cell transplantation (alloHCT). Despite the presence of phase III trials to support clinical decision-making, we hypothesized that physicians who tr...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2013.10.021
更新日期：2014-02-01 00:00:00
abstract：:Gain-of-function mutations in the proto-oncogene c-kit that induce constitutive kinase activity of its product, KIT protein, are characteristic of human mast cell disease and are believed to play a central role in mast cell leukemia oncogenesis, proliferation and survival. Nuclear overexpression of the Wnt effector be...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.08.023
更新日期：2008-05-01 00:00:00
abstract：:p23 is a heat shock protein 90 (Hsp90) cochaperone that plays a significant role in estrogen receptor (ER) alpha signal transduction and telomerase activity; it is up-regulated in several cancers. Recent studies have found that high level of p23 may promote tumor progression and poor prognosis in breast cancer patient...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.05.003
更新日期：2012-09-01 00:00:00
abstract：:We report the establishment and characterization, including HLA-typing, immunophenotypic and molecular cytogenetic analysis, of a novel EBV-negative cell line (BLUE-1) derived from adult relapsed sporadic Burkitt lymphoma. BLUE-1 carries the pathognomonic t(8;14)(q24;q32) effecting MYC/IgHJ fusion and a novel t(6;20)(...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.03.026
更新日期：2006-11-01 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：:There is a significant need for improved therapeutics in older patients with acute leukemia. Camidanlumab tesirine is an antibody-drug conjugate against CD25, an antigen expressed in several malignancies, including acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML). This open-label, dose-escalation an...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2020.106385
更新日期：2020-08-01 00:00:00
abstract：:As sensitization of leukemia cells with granulocyte colony-stimulating factor (G-CSF) can enhance the cytotoxicity of chemotherapy in myeloid malignancies, a pilot study was conducted in order to evaluate the effect of G-CSF priming combined with low-dose chemotherapy in patients with higher risk myelodysplastic syndr...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2016.07.005
更新日期：2016-09-01 00:00:00
abstract：:The studies aimed at identifying a prognostic significance of angiogenesis-related factors: CD105 and placental growth factor (PlGF) in a course of acute lymphoblastic leukaemia (ALL). Research protocol was based on detection of RNA and protein expressions in bone marrow blasts using quantitative PCR and immunocytoche...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.03.017
更新日期：2012-07-01 00:00:00
abstract：:Mutation of the tumor suppressor PTEN results in loss of its PI3-kinase counteracting function. PI3-kinase stimulates tumor formation by PKB/Akt-mediated cell proliferation and prevention of apoptosis. PI3-kinase may also activate Rho-GTPases and their regulatory GEFs to promote invasion. Here we have analyzed the fun...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.03.034
更新日期：2008-01-01 00:00:00
abstract：:We studied monosomy and deletions of chromosome 7 in 170 patients with myeloid disorders and we identified a minimal region of loss in 7q31.1 spanning between the D7S2554 and D7S2460 markers. The closest gene to our most deleted microsatellite, D7S2554, is the human I-mfa domain containing (HIC) gene, alias MyoD famil...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.09.007
更新日期：2007-04-01 00:00:00
abstract：:Hybrid (C56BL/6 x DBA) (BDF1; H-2b/H-2d) mice bearing the P815 leukemia (H-2d) were grafted with a (CBA x C57BL/6)F1 (CBF1; H-2k/H-2b) cell suspension, comprising bone marrow cells (BMC; 25 x 10(6)/mouse) and spleen cells (SC; 55 x 10(6)/mouse) on day-4, then treated with cyclophosphamide (200 mg/kg) on day-2 and fina...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(97)00011-8
更新日期：1997-10-01 00:00:00
abstract：:Of 597 cases of acute leukaemia in adults (greater than 16 years) seen at St. Bartholomew's Hospital, London, between May 1973 and January 1982, 412 were diagnosed as AML, 103 as ALL and 58 as Philadelphia chromosome positive blast crisis of CML (13 presenting as acute leukaemia and 45 having a prior chronic phase). T...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(83)90067-x
更新日期：1983-01-01 00:00:00
abstract：:The development of the leukemia-lymphoma complex was studied in AKR/J (H-2k) mice using flow cytometry and staining with acridine orange. Investigation of cytokinetics and of cellular RNA content showed that during the neonatal period all mice had a significant increase of S phase cells in the thymus, bone marrow, lym...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90158-4
更新日期：1985-01-01 00:00:00
abstract：:The biological progression of chronic myeloid leukaemia is often associated with secondary cytogenetic abnormalities but the molecular mechanisms underlying this progression are poorly understood. This study explores the association of c-myc gene amplification with the progression of chronic myeloid leukaemia in fourt...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(98)00097-6
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Therapy strategies for myelodysplastic syndromes (MDS) and juvenile myelomonocytic leukemia (JMML) vary considerably. OBJECTIVE:To review the treatment of Brazilian children who were diagnosed with MDS or JMML in the past decade and reported to the Brazilian Cooperative Group on Pediatric Myelodysplastic Sy...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2004.01.008
更新日期：2004-09-01 00:00:00
abstract：:Superoxide dismutase "SOD" enzyme levels in leucocytes of patients with acute and chronic leukemia, were measured by using Misra and Fridovich's epinephrine method. In all types of leukemia, the SOD levels were found to be significantly higher than normals. However, these levels decreased to normal in remission. No re...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(89)90166-5
更新日期：1989-01-01 00:00:00
abstract：:Little information is available about the risk factors and means to improve the survival rate of acute leukemia in a rare but often fatal complication after liver transplantation (LT). We report the development of AML-M2 in one of the 764 patients who underwent liver transplantation at our center, and review the liter...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.03.035
更新日期：2009-10-01 00:00:00
abstract：:Smoking may be associated with accelerated erythropoiesis, leukocytosis and thrombocytosis, which are also hallmarks in patients with polycythemia vera, essential thrombocythemia and early stages of myelofibrosis (MPNs). The JAK-STAT and NF-κB signaling pathways are activated in both smokers and in patients with MPNs....
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2015.09.002
更新日期：2015-09-09 00:00:00
abstract：:Screening for loss of heterozygosity (LOH) of the panel of 18 highly polymorphic microsatellite markers, especially from the region 11p15, was carried out on 154 samples from 26 patients with acute myeloid leukemia and eight with myelodysplastic syndromes (MDS). LOH was detected at the majority (72%) of the loci teste...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(00)00086-2
更新日期：2001-01-01 00:00:00
abstract：:Dequalinium (DQA) has been proposed as a selective antitumoral agent due to its preferential accumulation in mitochondria of cancer cells. Our aim was a better understanding of DQA cytotoxicity. DQA-induced NB4 and K562 cell alterations are initiated within the first 30 min of treatment at a high DQA concentration wit...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.11.018
更新日期：2007-07-01 00:00:00
abstract：:Cell-mediated natural cytotoxicity (CMNC) of fresh or long-term cultured lymphocytes collected from HTLV-positive patients or infected in vitro with the virus, was tested against K562 target cells. Severe depression of reactivity was found in fresh lymphocytes of three patients with advanced disease, in 12 in vitro es...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90056-6
更新日期：1985-01-01 00:00:00
abstract：:Nucleic acid and protein synthesis was determined in immature myeloid cells isolated from seven normal bone marrow samples and compared to blasts from nine patients with fullblown acute non-lymphocytic leukemia. Samples obtained from normal bone marrow contained a mean of 82% immature myeloid cells with 29.9% S-phase ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(82)90098-4
更新日期：1982-01-01 00:00:00
