Abstract：
:Medullary dyserythropoiesis with reduced production of erythrocytes is an early and consistent feature of myelodysplastic syndromes (MDS). The mechanism underlying the disturbed red cell proliferation and maturation is presently unknown. In order to study the role of erythropoietic growth factors, we determined by radioimmunoassay the serum concentrations of immunoreactive erythropoietin (Epo) in 42 non-transfused patients with primary and secondary MDS. Their median hemoglobin concentration at the time of Epo measurement was 9.1 g/dl (range, 5.7-14.6). Compared with the control group, 83% of the MDS patients had increased serum Epo levels, ranging from 26-4530 mU/ml. Although in the entire patient population an inverse relationship between serum Epo and hemoglobin concentrations was noted (r = -0.35; p = 0.02), Epo titers differed markedly between patients at comparable degrees of anemia. In 7 patients presenting with a hemoglobin concentration between 5.9 and 11.9 g/dl, excessive elevations of Epo levels (greater than 500 mU/ml) were found. In contrast to previous observations, serum Epo concentrations were not shown to correlate with the percentage of erythroblasts in the bone marrow. There was, however, a significant relationship between the Epo activity and the degree of medullary dyserythropoiesis, as assessed by morphological criteria (p less than 0.01). From these data we conclude that the anemia in MDS is not due to an endogenous Epo deficiency. The marked variability of Epo production in these disorders is not fully explained by the degree of anemia, but may also reflect inherent abnormalities of the myelodysplastic erythropoiesis.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Aul C,Arning M,Runde V,Schneider Wdoi
10.1016/0145-2126(91)90025-osubject
Has Abstractpub_date
1991-01-01 00:00:00pages
571-5issue
7eissn
0145-2126issn
1873-5835pii
0145-2126(91)90025-Ojournal_volume
15pub_type
杂志文章abstract：:The chemicals 6-mercaptopurine (6-MP) and methotrexate (MTX) are the cornerstones in the maintenance treatment of acute lymphoblastic leukemia. The intracellular metabolism of 6-MP to 6-thioguanosine nucleotides (TGN) via 6-thioinosine 5'-monophosphate (TIMP) is crucial for its cytotoxic effect. MTX inhibits purine de...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90065-f
更新日期：1992-01-01 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：:There is resurgent interest in glucocorticoids (GCs) in the treatment of poor prognosis chronic lymphocytic leukemia (CLL). Little is known however on how GCs induce apoptosis in CLL. Methylprednisolone (MP) induces apoptosis in ZAP-70 positive CLL more readily than in ZAP-70 negative CLL, which is in contrast to the ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.02.022
更新日期：2009-10-01 00:00:00
abstract：:The goal of this study was to ascertain the specific effects of 17-N-Allylamino-17-demethoxygeldanamycin (17-AAG) treatment in human acute myelogenous leukemia (AML). Four human leukemia cell lines were treated with varying doses of 17-AAG followed by analysis of toxicity, apoptosis, proliferation, and cell cycle. Cel...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.05.024
更新日期：2010-11-01 00:00:00
abstract：:Two white European males are reported with adult T-cell leukemia (ATL), a disease first described in Japan, but recently also in the U.K. and U.S.A. Both patients presented with lymphadenopathy, but without a mediastinal mass. In addition, one patient had skin infiltrates and the other had hepatosplenomegaly. Morpholo...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(83)90055-3
更新日期：1983-01-01 00:00:00
abstract：:Acute myeloid leukemia (AML) is a heterogeneous disease. Until recently, treatment for patients with AML was limited to induction chemotherapy with cytarabine and anthracycline or hypomethylating agents, and, in some instances, allogeneic hematopoietic stem cell transplant. With the recent approval of new therapies-i....
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2018.09.001
更新日期：2018-10-01 00:00:00
abstract：:In order to investigate the clinical significance of IgG subclass levels in adult patients treated for acute lymphocytic (ALL) or myelogenous leukemias (AML), patients were tested before and in regular intervals during and after chemotherapy. Ten patients treated for acute lymphocytic leukemia had normal total IgG and...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(92)90128-t
更新日期：1992-01-01 00:00:00
abstract：:240 patients with MDS studied cytogenetically at diagnosis between 1981 and 1990 were followed until death or until April 1992 to evaluate the prognostic significance of FAB classification, age and karyotype. 61 patients (25.4%) subsequently transformed into AML and 176 (73.3%) died during the follow-up period. Patien...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(94)00131-s
更新日期：1995-05-01 00:00:00
abstract：:The aberrant changes of tumor suppressor genes (TSGs) are now recognized as an important mechanism contributing to the development of acute myeloid leukemia (AML). CCAAT/enhancer binding protein zeta (C/EBPζ), a candidate TSG, has been found to be involved in cancers including AML. We detected the methylation status o...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.10.031
更新日期：2011-07-01 00:00:00
abstract：:The acid phosphatase (AP), beta-glucuronidase (BG), and alpha-naphthyl-acetate esterase (ANAE) distribution and the morphology of stage 0 B-CLL lymphocytes were studied. The results were compared with the same hydrolase equipment and morphology of normal B-cell populations showing the B-CLL-like phenotype, and thus re...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(87)90074-9
更新日期：1987-01-01 00:00:00
abstract：:Aneuploidy is a very common prognostic factor in multiple myeloma (MM). Nonhyperdiploidy including near-tetraploidy (NT) is a poor prognostic indicator, compared to hyperdiploidy in multiple myeloma (MM). NT results from endoduplication of hypodiploidy. We report of a 55-year-old female patient diagnosed with advanced...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.01.013
更新日期：2010-07-01 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：:Protein tyrosine kinase-7 (PTK7) was recently identified as a surface protein expressed on hematopoietic cells. To determine if PTK7 is a useful biomarker in clinical practice for acute leukemia immunophenotyping and detection, we examined the PTK7 expression in human bone marrow and thymic specimens. Our results show...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.07.004
更新日期：2012-11-01 00:00:00
abstract：:In a patient affected with chronic lymphocytic leukemia with lymphocyte surface mu and kappa determinants and vacuolated bone marrow plasma cells, the serum contained polymers of a truncated mu chain and normal-sized kappa chains. These light chains were present as monomers and covalent dimers in studies performed und...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(93)90129-9
更新日期：1993-06-01 00:00:00
abstract：:The presence of intracellular cytoplasmic immunoglobulin M (IgM) in leukemic cells from patients with acute lymphocytic leukemia (ALL) and chronic lymphocytic leukemia (CLL) was investigated by flow cytometry. The objective of the study was to develop a reproducible flow cytometric method. A Burkitt's lymphoma-derived...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90126-2
更新日期：1985-01-01 00:00:00
abstract：:Acute myeloid leukemia (AML) is frequently treated with induction and consolidation chemotherapy. Consolidation chemotherapy can be delivered on an ambulatory basis, requiring some patients to travel long distances for treatment at specialized centers. We developed a shared care model where patients receive consolidat...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2017.05.023
更新日期：2017-08-01 00:00:00
abstract：:Mantle cell lymphoma (MCL) is an aggressive malignancy and new treatment modalities must be established to increase patient survival time. In the search for new therapeutic targets, reliable and well-characterised in vitro models are essential. In this study, we have characterised three MCL cell lines (SP53, Granta 51...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2004.06.009
更新日期：2005-02-01 00:00:00
abstract：:The thymic stroma has long been implicated in AKR thymic leukaemia. In this study an extensive panel of monoclonal antibodies was used to investigate changes in the AKR thymic microenvironment, in parallel with thymocyte differentiation of normal (2 month), preleukaemic (5-7 month) and leukaemic (> 7 month) mice. We f...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(95)00102-6
更新日期：1996-10-01 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：:Delocalized lipophilic cation dequalinium (DQA) selectively accumulates in mitochondria and displays anticancer activity in different malignancies. Our previous studies indicate a DQA-induced cytotoxicity in human acute promyelocytic leukemia NB4 cells by early disturbance in mitochondrial function and oxidative stres...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2014.01.009
更新日期：2014-07-01 00:00:00
abstract：:Helix-loop-helix (HLH) transcription factors are involved in cellular growth and differentiation. The Id (inhibitor of DNA binding and differentiation) HLH proteins, in a dominantly negative fashion, regulate transcriptional activities of basic HLH proteins. We examined by northern hybridization the expression of Id2 ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(95)00084-4
更新日期：1995-12-01 00:00:00
abstract：:CD13/aminopeptidase-N, an enzyme expressed by myeloid cells, may be important in the regulation and signalling pathways that control myeloid growth and differentiation. In this study we have used the myeloid leukaemic cell line HL60, and its ability to differentiate when induced by all-trans-retinoic acid (ATRA), to s...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(94)90045-0
更新日期：1994-08-01 00:00:00
abstract：:Two AML patients, whose leukemic clonogenic cells totally reacted to the anti-lactofucopentaose III S4-7 monoclonal antibody (MoAb), underwent autologous bone marrow transplantation, in first complete remission, after in-vitro purging with S4-7 MoAb and complement. After ablative chemotherapy (BAVC regimen) and reinfu...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(87)90050-6
更新日期：1987-01-01 00:00:00
abstract：:It has been suggested that imatinib mesylate (IM) influences osteogenesis and bone turnover in treated patients. Here we show that the inhibitory effect of IM on cell multiplication is associated with an increased proportion of spliced osteocalcin (OCNs) in leukemia (HL-60) and osteosarcoma cells (MG-63, U-2 OS), desp...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.07.020
更新日期：2008-03-01 00:00:00
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 ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(96)00053-7
更新日期：1997-01-01 00:00:00
abstract：:We report on four cases of trisomy 14 as the sole anomaly. Three cases were myelodysplastic syndromes and one was a non-Hodgkin's lymphoma. This anomaly is mainly in myeloid disorders and still remains to be well documented. On the other hand, we show this anomaly to be also a non-random anomaly in lymphoproliferative...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/0145-2126(92)90181-6
更新日期：1992-01-01 00:00:00
abstract：:Selective inhibition of the BCR/ABL tyrosine kinase by imatinib (STI571, Glivec/Gleevec) is the therapeutic strategy in patients with chronic myelogenous leukemia (CML). Despite significant hematologic and cytogenetic responses with imatinib, mainly due to the mutations in the Abl kinase domain, resistance occurs in p...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.11.007
更新日期：2008-06-01 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 retrospective cytogenetic study was performed to determine whether non-random chromosome aberrations were related to the outcome of marrow transplantation for advanced stage acute leukemia (AL) and chronic myelogenous leukemia (CML). The patients were registered on SWOG-8612, a randomized comparison of busulphan and...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/0145-2126(94)00162-4
更新日期：1995-06-01 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
