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 necrosis factor-alpha (TNF alpha). Drug-resistant cell lines showed increased activities of copper/zinc superoxide dismutase (Cu/ZnSOD) and catalase compared with their parental drug-sensitive cell lines. However, the greater susceptibility of drug-resistant cells to TNF alpha cytotoxicity was, in part, related to their decreased activities of manganese superoxide dismutase (MnSOD). Persistence of this differential sensitivity when MnSOD is inhibited by sodium nitroprusside (SNP) suggests that the greater susceptibility of drug-resistant cells to TNF alpha was not entirely due to their decreased level of MnSOD activity. K562 cl.6 and K/DAU600, which were more resistant to TNF alpha, both expressed greater levels of endogenous plasma membrane-bound TNF alpha than the CCRF-CEM cell line. All cell lines examined were (more or less) equal in susceptibility to the cytolytic effect of exogenous O2-. generated by xanthine/xanthine oxidase. These results demonstrate that both MnSOD and endogenous TNF alpha play a role in protecting leukaemic cells against TNF alpha cytotoxicity, but there is an unknown mechanism that causes drug-resistant cells to be more susceptible to TNF alpha cytotoxicity.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Jia L,Jiang XR,Razak K,Wu YL,Newland AC,Kelsey SMdoi
10.1016/0145-2126(94)00149-5subject
Has Abstractpub_date
1995-03-01 00:00:00pages
187-94issue
3eissn
0145-2126issn
1873-5835pii
0145-2126(94)00149-5journal_volume
19pub_type
杂志文章abstract：:Imatinib mesylate (IM) is the treatment of choice in patients with newly diagnosed chronic myeloid leukemia (CML), irrespectively of their age. Nevertheless, information regarding tolerability and responses in advanced-age patients, a subgroup in which co-morbidities and other factors may influence outcome, is scarce,...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.leukres.2011.01.017
更新日期：2011-09-01 00:00:00
abstract：:Forty patients with high risk myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML) preceded by MDS were treated with intensive induction and consolidation chemotherapy in a prospective multicenter pilot study. They were given two cycles of cytarabine 100 mg/m with 12-h intervals on days 1-7 and idarubicin 12...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0145-2126(96)00116-6
更新日期：1997-02-01 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：:Myelodysplastic syndrome (MDS) are a heterogeneous group of clonal disease characterized by insufficiency of bone marrow, increase of apoptosis and increased risk of acute leukemia progression. Proteins related to the mitotic spindle (AURKA, AURKB, TPX2), to the mitotic checkpoint (MAD2, CDC20) and the regulation of t...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2017.11.013
更新日期：2018-01-01 00:00:00
abstract：:The aim of this study was to describe the presenting features, the frequency and outcome of myeloid sarcoma (MS) diagnosed in our Institution from January 1995 to December 2000. Twelve MS were seen and the frequency account for only 2% of all acute myeloid leukemia (AML) patients observed in our department in the same...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2004.01.022
更新日期：2004-11-01 00:00:00
abstract：:Primary cardiac lymphoma (PCL) is a rare and usually fatal neoplasm, which may cause syncope, arrhythmia, heart failure and pericardial effusion as presenting clinical complaints. A case of PCL in a 72-year-old man with moderate aortic stenosis is presented. The patient was investigated because of pericardial effusion...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/s0145-2126(01)00092-3
更新日期：2002-01-01 00:00:00
abstract：:Prospective data are needed to ascertain the impact of iron chelation therapy in patients with myelodysplastic syndromes. The present 5-year prospective registry analysis was conducted to compare clinical outcomes between chelated and nonchelated patients with lower-risk myelodysplastic syndromes and transfusional iro...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2017.01.033
更新日期：2017-05-01 00:00:00
abstract：:Pycnogenol, rich of many phytochemicals of medical value, is a commercialized nutrient supplement extracted from the bark of European coastal pine. In this study, we investigated the anti-tumor effects of Pycnogenol on HL-60, U937 and K562 human leukemia cell lines. We found that Pycnogenol inhibited cell proliferatio...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2004.10.006
更新日期：2005-06-01 00:00:00
abstract：:Many patients with multiple myeloma (MM) are elderly (aged >65 years) or unfit, and therefore ineligible for stem-cell transplantation. The novel agents thalidomide, bortezomib, and lenalidomide have shown improved outcomes in these patients. This article discusses the role of continuous therapy in improving patient o...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/S0145-2126(12)70005-X
更新日期：2012-11-01 00:00:00
abstract：:Inosine 5'-monophosphate (IMP) dehydrogenase catalyzes the rate-limiting reaction of guanine nucleotide biosynthesis and has been implicated in the reaction of cell growth and differentiation. We investigated the ability of mycophenolate mofetil, a prodrug of mycophenolic acid, to induce differentiation in HL-60 and U...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(00)00045-x
更新日期：2000-09-01 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：:Outcomes in patients with secondary acute myeloid leukemia (sAML) (including therapy related myeloid neoplasms and AML with myelodysplasia related changes (MRC)) are poor. Patients treated with hypomethylating agents (HMAs) for antecedent hematological malignancy (AHM) have suboptimal responses to induction chemothera...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2020.106367
更新日期：2020-06-01 00:00:00
abstract：:A novel bone biopsy technique was used to generate a robust stromal cell system to study how stroma modulates CLL B-cell apoptosis and how the leukemic cell-stromal interaction influences secretion of vascular factors. Marrow stromal elements (MSE) rescued CLL B-cells from both spontaneous and drug induced apoptosis, ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.11.024
更新日期：2007-07-01 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：:Although the production of interleukin (IL) 2 and interferon (IFN) gamma by peripheral blood lymphocytes in patients with Hodgkin lymphoma (HL) is well documented, the synthesis of IL4 has not been investigated before. The present study examines the production of IL4 by 2-day phytohaemaglutinin (PHA)-stimulated periph...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(03)00216-9
更新日期：2004-02-01 00:00:00
abstract：:Using a short term liquid system we have shown that blood from some patients with primary myelofibrosis (PMF) and chronic granulocytic leukaemia (CGL) in megakaryoblastic transformation (CGL-Mk) gives rise to large numbers of progenitor cells committed to the megakaryocyte (Mk) lineage. As assessed by indirect immunof...
journal_title：Leukemia research
pub_type： 历史文章,杂志文章
doi：10.1016/0145-2126(85)90108-0
更新日期：1985-01-01 00:00:00
abstract：:Immunoglobulin gene rearrangements can be used as genetic markers of clonality in the study of B-cell populations [4]. We have therefore analysed the structure and expression of heavy and light chain immunoglobulin genes in lymphocytes of a patient with chronic lymphocytic leukemia, where we found both k and lambda pr...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(87)90162-7
更新日期：1987-01-01 00:00:00
abstract：:The MTT cell viability assay is widely used in determining drug sensitivity profiles for patients with hematological malignancies and in primary screening of potential chemotherapeutic drugs. Because the multidrug resistance (MDR) phenotype is associated with these malignancies, and since many vital dyes are effluxed ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90114-m
更新日期：1992-12-01 00:00:00
abstract：:Microtubular reorganisation contributing to apoptotic morphology occurs in normal and neoplastic cells undergoing apoptosis induced by cytotoxic drugs [1-3]. The aim of this study was to correlate the changes in the microtubules (MTs) with behavior of the centrosome in apoptotic cells, and to see whether post-translat...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(97)00038-6
更新日期：1997-06-01 00:00:00
abstract：:We have investigated the production of metalloproteinases (MMP-1, MMP-2, MMP-9) and tissue inhibitors of metalloproteinases (TIMP-1 and TIMP-2) in bone marrow stromal cells (BMSCs) of patients with multiple myeloma (MM) and a healthy control. The new findings of this paper is that BMSCs of the MM patients exhibited in...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.04.001
更新日期：2008-11-01 00:00:00
abstract：:To examine the relationship between viability of acute myelogenous leukemia (AML) blasts in liquid suspension culture and the occurrence of myeloid maturation in culture, total and differential cell counts and viability as determined by trypan blue dye exclusion were followed over 21 days of culture. A significant pos...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(88)90098-7
更新日期：1988-01-01 00:00:00
abstract：:A variety of genetic and epigenetic abnormalities were characterized over the last years in Hodgkin and Reed-Sternberg (H-RS) cells of classic Hodgkin Lymphoma (cHL). It was speculated that simultaneous inhibition of multiple signalling pathways might be a promising strategy to target this tumor entity. In the present...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.12.013
更新日期：2009-07-01 00:00:00
abstract：:In acute lymphoblastic leukemia (ALL) patients, automated fluorescence fragment analysis (ALF) has been reported to improve the monoclonality detection rate of immunoglobulin heavy chain genes (IgH) polymerase chain reaction (PCR) analysis. This study performed complementary determining region (CDR) I and III PCR on s...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(01)00025-x
更新日期：2001-09-01 00:00:00
abstract：:A wide range of different agents are capable of inducing the onset of HL-60 differentiation along the myeloid lineage. The diversity of these agents has made the analysis of the molecular mechanisms involved in the regulation of the onset and progress of terminal differentiation in these cells difficult. We have adapt...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(89)90081-7
更新日期：1989-01-01 00:00:00
abstract：:Discovering genetic predictors of childhood acute lymphoblastic leukemia (ALL) necessitates the evaluation of novel factors including maternal genetic effects, which are a proxy for the intrauterine environment, and robust epidemiologic study designs. Therefore, we evaluated five maternal and offspring xenobiotic meta...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.leukres.2013.01.020
更新日期：2013-05-01 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：:Mutations in Janus kinase 2 (JAK2) are implicated in the pathogenesis of Philadelphia-chromosome negative myeloproliferative neoplasms, including primary myelofibrosis, polycythemia vera, and essential thrombocythemia. Gandotinib (LY2784544), a potent inhibitor of JAK2 activity, shows increased potency for the JAK2V61...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2017.08.010
更新日期：2017-10-01 00:00:00
abstract：:We investigated the role of Src family kinases (SFKs) in the regulation of STAT activation in myeloid leukemia cells. Two of 6 AML cell lines displayed constitutive STAT5 activation, whereas four cell lines had constitutive SFK activity. Treatment with the SFK inhibitors suppressed STAT5 activation and decreased viabi...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.11.032
更新日期：2008-06-01 00:00:00
abstract：:Leukemic cell lines have become important tools for studies of disease providing a monoclonal cell population that can be extensively expanded in vitro while preserving leukemic cellular characteristics. However, studies of chronic lymphocytic leukemia (CLL) have been impeded in part by the lack of continuous human ce...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2015.10.008
更新日期：2016-01-01 00:00:00
abstract：:Methods for ex vivo purging of neoplastic cells from harvested marrow are being developed to increase the efficacy of autologous transplantation. One approach is selective photosensitization, using sensitizing compounds and light radiation. Pyrene-containing fatty acids and lipids are potent photosensitizers, e.g. 12-...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90170-c
更新日期：1992-01-01 00:00:00
