Abstract:
:We have used the gel retardation assay to investigate the binding of nuclear proteins to the duplicated CACCC boxes in the beta-globin gene promoter region. The effect of beta-thalassemia mutations affecting both of these consensus sequences (the -88 C-->T and -101 C-->T mutations) were studied by using appropriate mutant oligonucleotides. Upon incubation with nuclear proteins from human erythroleukemia cells, the synthetic oligonucleotides containing single and/or duplicated CACCC box(es) generated five retarded bands. Bands B1 and B2 appeared to be highly specific complexes as determined by competition experiments whereas bands B3, B4 and B5 were nonspecific. The binding of the specific trans-acting factors was stable and could be competed out only by relatively high concentrations of competitor DNA. The proximal CACCC box (as in the -88N probe) appeared to be essential in the binding of nuclear proteins and a mutation at nt -88 (C-->T) abolished binding completely. In contrast, the distal CACCC box showed no binding activity either as normal (-101N) or as mutant (-101M). A full competition with the Sp1 oligonucleotide, even at low concentrations, suggested a high affinity binding to the Sp1 consensus sequence. The close similarities in the binding patterns of the labelled -88N, -88N/-101N and that of the labelled Sp1 probe add further credence to the possibility that bands B1 and B2 may be due to the Sp1 protein, a ubiquitously expressed trans-activator.
journal_name
Acta Haematoljournal_title
Acta haematologicaauthors
Baysal E,Ribeiro ML,Huisman THdoi
10.1159/000204237subject
Has Abstractpub_date
1994-01-01 00:00:00pages
16-20issue
1eissn
0001-5792issn
1421-9662journal_volume
91pub_type
杂志文章abstract::The activity of gamma-glutamyl transpeptidase was investigated in normal and leukemia leukocytes. Enzyme activity was positively correlated with the proportion of mature neutrophils and monocytes. In isolated leukocytes from patients with acute myeloid leukemia low values were obtained compared to controls. ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207384
更新日期:1980-01-01 00:00:00
abstract::A 69-year-old man with a rare case of lymphoma-type alpha-chain disease was admitted to the hospital with marked cervical and inguinal lymph node swelling. Lymph node biopsy showed marked infiltration of plasma cells, plasmacytoid cells and immunoblastoid cells, alone or in combination. Immunoelectrophoresis and immun...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000204814
更新日期:1991-01-01 00:00:00
abstract::In a case of preleukemic dyserythropoiesis, in vitro red cell lysis tests showed a positive acidified serum test whose characteristics are described. The positive acidified serum test occurred in 10 normal sera, in 1 serum with complete deficiency of the fourth component of complement and in 1 serum with complete defi...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207748
更新日期:1978-01-01 00:00:00
abstract:BACKGROUND:Despite encouraging reports concerning the declining prevalence of iron deficiency, this easily preventable disorder is still an existing problem in presumably developed regions. OBJECTIVE:To evaluate the prevalence of iron deficiency and relevant anemia in children residing in Northern Greece and to study ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000098273
更新日期:2007-01-01 00:00:00
abstract::A case of multiple pyarthroses due to Staphylococcus aureus occurring in a severe classical hemophiliac is presented. Successful management depended on drainage of the infected joints and a prolonged course of antibiotics. Several criteria are suggested for recognition of hemophiliacs who might benefit from joint aspi...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206569
更新日期:1984-01-01 00:00:00
abstract::A family with hereditary ovalocytosis (HO) is described. The probands, 2 brothers, had splenic rupture after modest trauma as preenting symptoms. 7 members of the family had HO. The sister of the pobands had a moderately enlarged spleen. The other members proved normal on routine clinical examination. ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207420
更新日期:1980-01-01 00:00:00
abstract::We have been studying hematopoietic effects by the tachykinins, which like many other neuropeptides can be expressed in neural and nonneural tissues. Substance P (SP) and neurokinin-A (NK-A), members of the tachykinins are immune and hematopoietic modulators. SP and NK-A are derived from the preprotachykinin-I gene (P...
journal_title:Acta haematologica
pub_type: 杂志文章,评审
doi:10.1159/000203593
更新日期:1997-01-01 00:00:00
abstract::Human urinary erythropoietin has been purified to homogeneity. The seven-step procedure yielded a preparation with a potency of 225,000 U/mg protein. SDS-polyacrylamide gel electrophoretic analysis of the purified hormone revealed a single protein band with a molecular weight of about 35,000 that migrated with the bio...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205057
更新日期:1990-01-01 00:00:00
abstract::Tumor cell (TC) contamination of stem cell products can contribute to relapse after high dose chemotherapy and stem cell rescue. A new purging technology using replication-deficient recombinant adenovirus (Adv) containing the p53 tumor suppressor gene (Adv-p53) has been suggested to reduce tumor contamination of autol...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000040931
更新日期:1999-01-01 00:00:00
abstract::The BCR-ABL fusion gene represents the hallmark of chronic myelogenous leukemia (CML) and is derived from a translocation between chromosome 9 and 22. The majority of CML patients have a breakpoint in the major BCR region of the BCR gene giving rise to e13a2 or e14a2 BCR-ABL transcripts. Occasionally, other BCR breakp...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000230037
更新日期:2009-01-01 00:00:00
abstract::A case of Philadelphia-positive (Ph) acute lymphoblastic leukaemia (ALL) in a 40-year-old male is presented. At diagnosis, 80% of bone marrow cells were Ph. Remission with normal blood counts was achieved but the marrow became hypercellular, indicating conversion to chronic granulocytic leukaemia (GCL). The Ph clone p...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000204497
更新日期:1993-01-01 00:00:00
abstract::Afibrinogenaemia in a female Saudi child is reported. Two siblings died of bleeding. The parents, who are first cousins, a brother and two sisters are asymptomatic heterozygotes with fibrinogen levels of less than 1.5 g/l. The presentation was described and compared to other cases reported. ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206624
更新日期:1984-01-01 00:00:00
abstract::A 28-year-old woman with Bence-Jones multiple myeloma (MM) presented with several osteolytic lesions and a massive bone marrow infiltration with mature plasmocytes. After 6 cycles of chemotherapy with melphalan and prednisone, the patient, in apparent clinical remission, underwent allogeneic bone marrow transplantatio...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205969
更新日期:1987-01-01 00:00:00
abstract::The increased incidence of parallel tubular structures in lymphocytes of patients with Hodgkin's disease was investigated for a correlation with either impairment of cellular immunity (measured by DNCB-skin test and PHA-induced lymphocyte stimulation in vitro) or an increase of antibodies against cytomegalovirus or Ep...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000208056
更新日期:1975-01-01 00:00:00
abstract:BACKGROUND:The incidence of venous thromboembolism (VTE) in haematological malignancies varies according to the type and grade of the disease and clinical variables, and there is a need to develop a tool to predict the occurrence of VTE in cancer patients at diagnosis to tailor prophylactic anticoagulation use during t...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000496914
更新日期:2019-01-01 00:00:00
abstract::A 64-year-old man with multiple sclerosis developed a circulating anticoagulant. Three immunoglobulin fractions (I = IgG; II =IgG+IgA; III = IgM) were separated from patient serum by 33-percent ammonium sulfate precipitation and DEAE-52 cellulose column chromatography. Fractions I (IgG) and II (IgG+IgA) had factor VII...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207993
更新日期:1976-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Umbilical cord blood (UCB) contains haematopoietic stem cells and can be used as an alternative to bone marrow transplantation in certain cases. Engraftment was dependent upon the haematopoietic progenitor cell content of the cord blood units. This study was designed to investigate the influen...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000084677
更新日期:2005-01-01 00:00:00
abstract::Natural killer (NK) cell activity against K562 cell targets and the distribution of T cell subpopulations were investigated in the peripheral blood of 25 patients affected by beta thalassemia major, 18 clinically healthy heterozygotes, and 25 age-matched normal subjects. It was found that thalassemia major patients di...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206598
更新日期:1984-01-01 00:00:00
abstract::Peripheral blood stem cells (PBSC) are widely used in the setting of dose-intensive chemotherapies in patients with multiple myeloma (MM). Although the granulocyte colony-stimulating factor (G-CSF), following chemotherapy or not, is considered the standard growth factor for mobilizing PBSC, the optimal chemotherapeuti...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000070967
更新日期:2003-01-01 00:00:00
abstract::One of the major determinants of erythrocyte survival is membrane deformability, and an important intrinsic parameter of membrane deformability is the shear elastic modulus (mu) with higher mu values corresponding to increased membrane rigidity. Using a micropipette technique, we determined the shear elastic modulus o...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000204753
更新日期:1992-01-01 00:00:00
abstract::A rare case of Hodgkin's disease which initially presented with a thyroid tumor in an 18-year-old-man is reported. The tumor involved most of the thyroid gland but was well demarcated, and the border between the tumor and the remnants of the thyroid gland was relatively clear, suggesting secondary Hodgkin's disease in...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000203627
更新日期:1997-01-01 00:00:00
abstract::Treating patients with hemophilia and inhibitors is often problematic. The presence of inhibitors negatively impacts the effectiveness of treatment to achieve hemostasis especially in patients with hemophilia B, owing mainly to allergic reactions to factor IX (FIX) concentrates and the low success rate of immune toler...
journal_title:Acta haematologica
pub_type:
doi:10.1159/000508722
更新日期:2020-07-22 00:00:00
abstract::The ability of human bone marrow particles to produce a microenvironment conducive to granulocytopoiesis was tested by culturing them in vitro without an exogenous source of colony stimulating activity (CSA). Granulocytopoiesis in this system was confirmed by the following observations: (1) presence of mitotic figures...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207809
更新日期:1977-01-01 00:00:00
abstract::Factor VII deficiency is the least rare among uncommon congenital coagulation disorders. The majority of cases are isolated deficiencies. In some cases, FVII deficiency has been found to be associated with the deficiency in another coagulation factor or with non-coagulation-related abnormalities or defects. The evalua...
journal_title:Acta haematologica
pub_type: 杂志文章,评审
doi:10.1159/000096789
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:Adherence to tyrosine kinase inhibitor treatment is a significant factor in the achievement of a good clinical response in chronic myeloid leukemia (CML). The aim of this retrospective study is to investigate 1- and 2-year medication adherence to imatinib treatment, linking adherence rates with the clinical o...
journal_title:Acta haematologica
pub_type: 评论,杂志文章
doi:10.1159/000444626
更新日期:2016-01-01 00:00:00
abstract::The establishment of mouse and human monoclonal anti-DNA antibodies is described. Common idiotypes were identified on these antibodies employing monoclonal (mouse) and polyclonal anti-idiotypic antibodies. The significance of the presence and titer of the common idiotypes as clinical activity marker was examined in pa...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206029
更新日期:1986-01-01 00:00:00
abstract::Neurologic complications of allogeneic hematopoietic cell transplantation (allo-HCT) include infections, cerebrovascular events, therapy-induced neurotoxicity, recurrent malignancies, and neurologic manifestations of graft-versus-host disease (GVHD). Anti-glutamic acid decarboxylase (GAD) antibody-associated cerebella...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000494423
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:In 2003, oral fludarabine was introduced in the USA for the treatment of patients with hematologic malignancies as an alternative to its intravenous (i.v.) formulation; in 2008, it was introduced in México while the i.v. formulation was withdrawn. Accordingly, i.v. fludarabine had to be replaced by oral flud...
journal_title:Acta haematologica
pub_type: 临床试验,杂志文章
doi:10.1159/000357108
更新日期:2014-01-01 00:00:00
abstract::The in vitro immune functions of peripheral blood lymphocytes have been studied in 12 children with beta-thalassaemia major and hypersplenism. The study was performed prior to splenectomy and on the 2nd, 6th, 15th and 30th day after splenectomy. It was found that before splenectomy, patients had low numbers of blood l...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205886
更新日期:1987-01-01 00:00:00
abstract::The most common single genetic disorder and a major public health issue in Greece and other Mediterranean countries is beta-thalassemia. Current therapeutic approaches for homozygous beta-thalassemia entail blood transfusions and iron chelation therapy with deferoxamine or deferiprone for preventing tissue hemosideros...
journal_title:Acta haematologica
pub_type: 临床试验,杂志文章
doi:10.1159/000077551
更新日期:2004-01-01 00:00:00