Abstract:
:Leukemic cell apoptosis may be enhanced by appropriate oxidative stress. We report here the mechanism of Jurkat cell apoptosis by monochloramine (NH(2)Cl), a neutrophil-derived oxidant. NH(2)Cl induced caspase-dependent apoptosis, which was preceded by cytochrome c and Smac/Diablo release from mitochondria. Within 10min of NH(2)Cl treatment, c-Jun N-terminal kinase (JNK) activation and elevation of cytosolic Ca(2+) were observed. JNK inhibitors (SP600125 or JNK inhibitor VIII) significantly suppressed the apoptosis as well as caspase cleavage and cytochrome c release. In contrast, Ca(2+) chelation by EGTA+acetoxymethyl-EGTA had no effects on apoptosis. Our results indicated that JNK activation contributed most importantly to the NH(2)Cl-induced apoptosis.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Ogino T,Ozaki M,Hosako M,Omori M,Okada S,Matsukawa Adoi
10.1016/j.leukres.2008.07.009subject
Has Abstractpub_date
2009-01-01 00:00:00pages
151-8issue
1eissn
0145-2126issn
1873-5835pii
S0145-2126(08)00338-Xjournal_volume
33pub_type
杂志文章abstract::Recently, we identified a novel chromosomal rearrangement in Hodgkin lymphoma (HL), t(4;8)(q27;q24), which targets homeobox gene ZHX2 at the recurrent breakpoint 8q24. This aberration deletes the far upstream region of ZHX2 and results in silenced transcription pinpointing loss of activatory elements. Here, we have lo...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2011.10.019
更新日期:2012-05-01 00:00:00
abstract::Methylenetetrahydrofolate reductase (MTHFR) is an enzyme involved in folate metabolism and DNA methylation. Studies on MTHFR polymorphism in leukemia have largely focused on the protective role of MTHFR polymorphism in acute lymphoblastic leukemia (ALL). We evaluated the C677T and A1298C polymorphisms using the TaqMan...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2006.10.016
更新日期:2007-09-01 00:00:00
abstract::The expression and release of adhesion molecules by acute myelogenous leukemia (AML) blasts was investigated in vitro. For most patients AML blasts expressed relatively low levels of membrane-bound L-selectin and Intercellular adhesion molecule 1 (ICAM-1), but their soluble forms were detected in the supernatants for ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/s0145-2126(98)00156-8
更新日期:1999-02-01 00:00:00
abstract::Older patients with acute myelogenous leukemia (AML) have overexpression of P-glycoprotein (Pgp+), and this has been shown to correlate quantitatively with therapeutic outcome. Since Pgp-mediated efflux of cytotoxic drugs can be inhibited by the cyclosporine analogue, PSC 833, we investigated the use of this agent wit...
journal_title:Leukemia research
pub_type: 临床试验,杂志文章
doi:10.1016/s0145-2126(00)00024-2
更新日期:2000-07-01 00:00:00
abstract::The effect of mesna on intracellular accumulation of cytosine arabinoside (Ara-C) in murine normal and neoplastic lymphocytes was studied. Simultaneous exposure of cells to mesna at concentrations ranging from 0.25 to 1.0 mM and 3H-Ara-C (40.0 nM) resulted in a strong inhibition of Ara-C uptake in normal lymphocytes. ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(93)90117-4
更新日期:1993-09-01 00:00:00
abstract::A method using avidin-biotin complex (ABC) to detect the presence of the enzyme terminal deoxynucleotidyl transferase (TdT) is described and compared with a proven indirect immunofluorescence method. The material studied consisted of: (1) peripheral blood and bone marrow smears from 17 patients with leukemia (ALL, 8; ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(83)90107-8
更新日期:1983-01-01 00:00:00
abstract::Rhodamine 123 is transported by the transmembrane efflux pump P glycoprotein (Pgp). We used this fluorescent dye to study multidrug resistance (MDR) activity in normal and leukemic CD34+ cells. These immature cells had a high degree of MDR activity. Among leukemic cells, CD34+ leukemias had significantly higher MDR ac...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(93)90159-i
更新日期:1993-12-01 00:00:00
abstract::Oblimersen selectively targets Bcl-2 mRNA and has been shown to enhance the apoptotic activity of various antileukemic agents, including gemtuzumab ozogamicin (GO), in preclinical studies. We evaluated the efficacy and safety of oblimersen combined with GO in patients > or =60 years of age in first relapse with CD33+ ...
journal_title:Leukemia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.leukres.2005.10.025
更新日期:2006-07-01 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::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
abstract::1,25-Dihydroxyvitamin D3 (1,25D) induces differentiation of myeloid leukemia cells, but resistant cells are also encountered. We studied the mechanistic basis for the resistance in a model system using enhancers of 1,25D, the antioxidant carnosic acid and a kinase inhibitor SB202190. Knock-down (KD) of JNK2p54 unexpec...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2009.03.003
更新日期:2009-10-01 00:00:00
abstract::Brazil is a wide country with huge contrasts. Its peculiarities can highlight environmental factors that could influence the frequencies of different cancers. The standard treatment and results achieved from several different areas of the country may not be found in others. The establishment of a national cooperative ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/s0145-2126(01)00187-4
更新日期:2002-07-01 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::The levels of expression of the activation antigen CD98 were studied by mAB CAF7 in 51 newly diagnosed consecutive cases of childhood acute lymphoblastic leukemia aged from 1 to 13 years. The mean follow-up was 8 months. A wide range of CAF7 expression was observed, the highest mean fluorescence intensity exceeding th...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(95)00114-x
更新日期:1996-01-01 00:00:00
abstract::The myelodysplastic syndromes are a heterogeneous group of hematopoietic stem cell diseases in which both diagnosis and prognosis are determined by cellular morphologic criteria. In some patients, prognosis is poor due to proliferation of immature cells, i.e. development of acute leukemia. An important clinical decisi...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(94)90112-0
更新日期:1994-03-01 00:00:00
abstract::Early T-cell precursor-ALL (ETP-ALL) is a subtype of T-ALL with a poor prognosis in children. We analyzed ETP-ALL compared to conventional T-ALL/LBL in both adults and children to determine any differences in clinical outcomes, based on the following parameters: induction failure, relapse, and survival. Patients with ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2013.06.010
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Chromosomal aberrations at the ETV6 gene locus on 12p13.2 are common in bone marrow samples involved by blastic plasmacytoid dendritic cell neoplasm (BPDCN). However, their pathogenic role, incidence in cutaneous BPDCN lesions, and clinical significance have not been assessed systematically. RESULTS:The stu...
journal_title:Leukemia research
pub_type: 临床试验,杂志文章
doi:10.1016/j.leukres.2018.09.006
更新日期:2018-10-01 00:00:00
abstract::Diagnosis of MDS has changed during the last years because of the 2008 WHO classification. Complete blood cell count (CBC) is a very important tool both for diagnosis of MDS. The aim of this study was to evaluate if it is possible to use the abnormal signals produced by dysplastic cells to produce a flag "dysplasia" a...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2011.06.015
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To analyze the frequency, clinical characteristics, and prognosis of IGH deletion in multiple myeloma (MM). METHODS:A total of 310 consecutive patients with multiple myeloma were analyzed. Among them 251 patients were newly diagnosed and 59 patients were previously treated, fluorescence in situ hybridization...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2015.02.010
更新日期:2015-05-01 00:00:00
abstract::A t(14;18) translocation is closely associated with the follicular lymphoma but is also seen in diffuse B cell lymphomas with a previous history of a follicular lymphoma as well as de novo diffuse lymphomas. Estimation of the frequency of t(14;18) in follicular lymphoma vary widely from 33 to 89%. Furthermore, no exte...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/s0145-2126(00)00009-6
更新日期:2000-06-01 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::In this study we explored the effects of bryostatin-5 on the clonogenic response of normal bone marrow mononuclear (BM) cells and HL60 myeloid leukemia cells. Leukemic HL60 colony formation was strongly inhibited by bryostatin-5 depending on dose and schedule. An inhibitory effect on HL60 colony formation was readily ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(94)00118-t
更新日期:1995-01-01 00:00:00
abstract::This report describes a unique case of acute myeloid leukemia with hypergranular cytoplasm and t(X;11)(q24;q23). The breakpoint on 11q23 was identified within the MLL gene. The hypergranular cytoplasm of leukemic cells and the associated coagulopathy resembled a characteristic of acute promyelocytic leukemia, despite ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/s0145-2126(98)00131-3
更新日期:1999-01-01 00:00:00
abstract::We examined polymorphisms of glutathione S-transferase (GST) genes in 159 Japanese patients with myelodysplasia and compared the incidence with that in 43 normal individuals to clarify their pathogenetic significance in myelodysplasia. In individuals with the GSTT1 null genotype, the odds ratios for disease risk were ...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/s0145-2126(99)00119-8
更新日期:1999-11-01 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::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::Regulation of pluripotent stem cell (CFU-S) proliferation kinetics by humoral factors is now well documented. However, the mechanism of choice of CFU-S differentiation pathways is still a controversial issue. We suggest that long-range humoral factors (pluripoietins) are capable of preferentially channelling CFU-S tow...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(84)90041-9
更新日期:1984-01-01 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::We studied 98 female patients in remission (2-240 months) from childhood ALL to determine the clonality status of their hematopoiesis. Thirty-one (31.6%) were heterozygous at the PGK locus for the BstX1 endonuclease restriction site, permitting X-linked clonality assays to be performed. Two patients were in relapse at...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/0145-2126(94)90121-x
更新日期:1994-02-01 00:00:00
abstract::During 2004-2006, two hypomethylating agents (HMAs) were approved for the treatment of myelodysplastic syndromes (MDS) in the United States. We assessed the impact of HMAs on the cost of care and survival of MDS patients, by constructing a cohort of patients who were diagnosed during 2001-2007 (n=6556, age ≥66.5 years...
journal_title:Leukemia research
pub_type: 杂志文章
doi:10.1016/j.leukres.2012.07.020
更新日期:2012-11-01 00:00:00