Abstract:
:A number of small and lipophilic cations are able to reverse in vitro the resistance to anthracyclines and other natural products through their interaction with P-glycoprotein or P-gp. However, some modulators do not interact with P-gp. We have demonstrated in a previous a work, using confocal laser microspectrofluorometry, that quinine does not increase nuclear anthracycline uptake in multidrug-resistant Chinese hamster ovary LR73 cells. In this case the LR73 cells were transfected with the mdr1 gene. Moreover, quinine induced in these cells an increase of mdr1 gene expression. In the present study, we investigated verapamil and quinine for their ability to increase nuclear pirarubicin uptake in multidrug-resistant K562R and CEMR human leukemic cell lines. These two cell lines resist, respectively, to doxorubicin and vinblastine and both overexpress the P-gp. Verapamil was able to restore nuclear pirarubicin in both cell lines. On the other hand, quinine was unable to significantly increase nuclear pirarubicin uptake. Both modulators were able to restore pirarubicin sensitivity in both resistant cell lines. After treatment with quinine, mdr1 gene and P-gp expression was not significantly altered as observed previously in the LR73 cells. This suggest that the effect of quinine on mdr1 gene expression is dependent on the cell line studied. These data suggest that quinine could modify the molecular environment of anthracyclines and/or its binding to a possible cytoplasmic target, and that the mechanisms by which anthracyclines induce cell death, and ways by which chemotherapy fails in multidrug-resistant leukemic cells remain complex and are related to more than one target.
journal_name
Eur J Haematoljournal_title
European journal of haematologyauthors
Morjani H,Belhoussine R,Lahlil R,Manfait Mdoi
10.1111/j.1600-0609.1998.tb01709.xsubject
Has Abstractpub_date
1998-10-01 00:00:00pages
240-9issue
4eissn
0902-4441issn
1600-0609journal_volume
61pub_type
杂志文章abstract:OBJECTIVES:On the basis of two population-based registries, our study aims to calculate the real-world cost-effectiveness of rituximab maintenance compared with observation in relapsed or refractory follicular lymphoma patients who responded to second-line chemotherapy. METHODS:Data were obtained from the EORTC20981 t...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12264
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Tumor lysis syndrome (TLS) is a complication that can cause renal failure by precipitation of uric acid (UA) and phosphate crystals in renal tubules. Rasburicase proved to be effective in rapidly reducing UA levels. Costs of rasburicase average up to 4500 euros. To assess if lower doses of rasburicase are ef...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2007.01013.x
更新日期:2008-04-01 00:00:00
abstract::33 patients with advanced refractory multiple myeloma received a combination of vincristine, cyclophosphamide, carmustine, melphalan and steroids (M-2 protocol). 20 of them had failed prior chemotherapy with alkylating agents and the remaining 13 patients had relapsed after a response to these drugs. An objective tumo...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1988.tb00816.x
更新日期:1988-02-01 00:00:00
abstract::The aim of this study was to evaluate the usefulness of serum osteocalcin (OC) levels in multiple myeloma (MM) in order to assess its significance and activity, and to predict its course. Serum OC was measurement in 117 patients with MM and 116 healthy controls matched for age and sex. Serum OC levels were weakly corr...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::Upshaw-Schulman syndrome (USS) is due to severe congenital deficiency of von Willebrand factor (VWF)-cleaving protease ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type 1 domains, nr 13) activity resulting in the presence of unusually large forms of VWF in the circulation, causing intravascular plat...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12197
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVES:Transfusional iron overload is of major concern in hematological disease. Iron-overload-related dyserythropoiesis and reactive oxygen species (ROS)-related damage to hematopoietic stem cell (HSC) function are major setbacks in treatment for such disorders. We therefore aim to investigate the effect of iron o...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12159
更新日期:2013-09-01 00:00:00
abstract::Immune thrombocytopenic purpura (ITP) is an autoimmune disorder, and high-dose dexamethasome (HD-DXM) has been used as a first-line therapy for patients with ITP. However, little is known about the role of dendritic cells (DCs) and CD4(+)Foxp3(+) regulatory T (Treg) cells in the pathogenesis of chronic ITP and the eff...
journal_title:European journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0609.2007.00917.x
更新日期:2007-10-01 00:00:00
abstract::Spontaneous remission in patients with acute myeloid leukemia (AML) is a rarely reported phenomenon of usually short duration. The etiology remains unclear, but an association with preceding blood transfusions or bacterial infections has been reported. Triggered immune responses are suggested to play a potential role ...
journal_title:European journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0609.2004.00248.x
更新日期:2004-07-01 00:00:00
abstract::To investigate the role of protein phosphorylation in the early phase of EPO-mediated signal transduction, we EPO-stimulated a murine erythroid cell line ELM-I-1 transformed by plasmids comprised of the c-fos enhancer/promoter linked to the luciferase gene. Using this reporter gene system, we previously showed that EP...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1994.tb00647.x
更新日期:1994-04-01 00:00:00
abstract:OBJECTIVES:This study aims to characterize the epidemiology of immunocompetent Primary central nervous system lymphoma (PCNSL) diagnosed 2000-2013 in Sweden. METHODS:Cases were identified in the population-based Swedish Lymphoma Register. Incidence per 100 000 person-years and 95% confidence intervals (CI) were calcul...
journal_title:European journal of haematology
pub_type: 历史文章,杂志文章
doi:10.1111/ejh.12980
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Although allogeneic hematopoietic cell transplantation (HCT) has a potential to cure patients with paroxysmal nocturnal hemoglobinuria (PNH), appropriate indication and conditioning regimen for HCT have not been established. PATIENTS AND METHODS:Between July 1999 and December 2001, five patients with PNH un...
journal_title:European journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1034/j.1600-0609.2003.00097.x
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVES:Imatinib (Glivec, STI571) has been successfully used in patients with chronic myelogenous leukemia and acute lymphoblastic leukemia with the Philadelphia chromosome (Ph). We used imatinib interim therapy for four consecutive patients with newly diagnosed Ph+ acute myeloid leukemia (AML). We monitored the pat...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2007.00890.x
更新日期:2007-08-01 00:00:00
abstract::The effect of rhIL-3 was investigated in 32 patients with newly diagnosed non-Hodgkin lymphoma in a phase I/II trial. All patients received 6 cycles of standard CHOP chemotherapy, and each patient was his own control where rhIL-3 was given as a daily s.c. injection for 14 days (day 2-15) in cycle 2 and 4, while cycle ...
journal_title:European journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0609.1995.tb01772.x
更新日期:1995-02-01 00:00:00
abstract::Recombinant human erythropoietin (rhEpo) is a mainstay in the treatment of anaemia, primarily in renal failure. Because the half-life of circulating rhEpo is relatively short (4-8 h), the drug is usually administered 2-3 times weekly. Recently, a novel erythropoiesis-stimulating protein (NESP) with a longer half-life ...
journal_title:European journal of haematology
pub_type: 杂志文章,评审
doi:10.1034/j.1600-0609.2002.02813.x
更新日期:2002-11-01 00:00:00
abstract::We report here the first case with Diamond-Blackfan anemia (DBA) who responded to rituximab. The patient is an 8-yr-old Japanese girl with refractory DBA accompanied by complex congenital heart disease. She received two doses of rituximab, 375 mg/m(2)/wk. She became transfusion independent 6 months after the treatment...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2004.00394.x
更新日期:2005-05-01 00:00:00
abstract::A hairy cell leukaemia (HCL) patient is presented in whom the peripheral blood mononuclear cells (PBMCs) carried suppressor T-cell markers (CD3+, CD2+, CD8+/CD4-, CD38+). Analysis of genomic DNA of PBMNC showed the presence of a monoclonal population of T cells, the T-cell receptor (TCR) beta-chain gene being rearrang...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1989.tb00309.x
更新日期:1989-10-01 00:00:00
abstract::Several studies have reported data on factors influencing mobilization of peripheral blood stem cells (PBSC) in non-myeloid malignancies. On the contrary, data from patients with acute myeloid leukemia (AML) are very limited, in particular, as the impact of an antecedent diagnosis of refractory anemia with excess blas...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2006.00777.x
更新日期:2007-01-01 00:00:00
abstract::In the study of patients with Hodgkin's lymphoma (HL) the evaluation of bone marrow biopsy (BMB) can be difficult. In this review we analyze the main diagnostic features and the clinical risk factors of BM involvement. Although the role of BMB is criticized by some authors, its value is irreplaceable in the staging of...
journal_title:European journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0609.2004.00292.x
更新日期:2004-09-01 00:00:00
abstract::8 patients with chronic myeloid leukaemia in the chronic phase who had previously received chemotherapy were given alpha-interferon (Intron A). The Intron A was administered subcutaneously at a dose of 2 x 10(6) I.U./m2 three times a week and this was increased to 4-5 million I.U./m2 daily if no response was obtained ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1988.tb00182.x
更新日期:1988-04-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to compare the major transplant outcomes between patients receiving hematopoietic stem cell transplantation (HSCT) from bone marrow (BM) or peripheral blood stem cells (PBSC). METHODS:All consecutive HSCT patients using BM or PBSC from an HLA-matched related donors for haemat...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12508
更新日期:2015-11-01 00:00:00
abstract::Treatment with recombinant erythropoietin (EPO) can alleviate anaemia in patients with myelodysplastic syndromes (MDS). The present study, based on a long-term follow-up of 68 MDS patients (26RA, 16 RAS, 26 RAEB) treated with EPO alone, pinpoints pre-treatment variables associated with response induction, response dur...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1034/j.1600-0609.2002.01530.x
更新日期:2002-03-01 00:00:00
abstract::An automated reticulocyte counter using flowcytometric analysis, the R-3000 (Sysmex Inc. Kobe, Japan), has recently been modified to determine reticulated platelets (RPs) and large platelets (LPs). We measured frequencies of RPs, LPs in total platelet count and serum thrombopoietin concentration comprehensively in non...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1999.tb01131.x
更新日期:1999-11-01 00:00:00
abstract:BACKGROUND:In vivo T-cell depletion with anti-thymocyte globulin is a commonly used strategy for the prevention of graft-versus-host disease (GVHD) and to avoid rejection after hematopoietic stem cell transplantation (HSCT). METHODS:We compared 36 patients given Campath (alemtuzumab) as part of the conditioning with a...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2010.01537.x
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:To assess the outcome of the measurement of apoptotic index in myeloma patients treated by conventional chemotherapy and novel drugs with biological mechanism of action, thalidomide and bortezomib. PATIENTS AND METHODS:In a cohort of 189 patients with newly diagnosed multiple myeloma from November 1997 throu...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2009.01321.x
更新日期:2009-12-01 00:00:00
abstract::Monoclonal antibodies 8A and 62B1, recognizing plasma cell-associated antigens, were covalently linked to saporin 6, a ribosome-inactivating protein similar to the A-chain of ricin. Both immunotoxins were tested on target human cell lines U266 and Raji, on non-target K562 cell line and on myeloid CFU-GM progenitors. T...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1989.tb00105.x
更新日期:1989-03-01 00:00:00
abstract::The value of Y-body study for assessment of haemopoietic engraftment was analyzed in 50 consecutive patients submitted to allogeneic bone marrow transplantation (BMT) (sex-matched in 28 cases, sex-mismatched in 22). The study was performed weekly on bone marrow and peripheral blood smears in all cases, and alveolar ma...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1988.tb00851.x
更新日期:1988-05-01 00:00:00
abstract::Immunoglobulin gene rearrangements in B-cell lymphoma subtypes may not always be detected by PCR if only one primer set is applied. We therefore analysed a range of low and high grade B-cell lymphoma subtypes for monoclonality using PCR, to determine appropriate primer selection strategies for routine diagnostic use. ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1997.tb00966.x
更新日期:1997-09-01 00:00:00
abstract::Cobalamin levels are frequently low in patients with dementia, but it is unclear if they represent definable deficiency and what the mechanisms are. Therefore, patients being evaluated for dementia who had low cobalamin levels but no obvious evidence of deficiency were studied hematologically, neurologically and with ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1995.tb00679.x
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:Paroxysmal nocturnal hemoglobinuria (PNH) diagnostic guidelines recommend single-tube five- to six-color or two-tube four-color assays. PNH clones are detectable in only a fraction of patients at risk, and screening for new PNH cases can be complex and expensive. In this multicenter study, we have validated ...
journal_title:European journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/ejh.12885
更新日期:2017-07-01 00:00:00
abstract::A 1-yr-old Japanese male infant developed hepatitis-associated aplastic anemia (AA), and anti-thymocyte globulin (ATG) plus cyclosporine A (CsA) was administered without any appreciable effects. Laboratory examination of the patient's serum obtained before therapy revealed various autoantibodies, such as PA-IgG, anti-...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2011.01612.x
更新日期:2011-06-01 00:00:00