Abstract:
:The CD34 molecule expressed on haemopoietic progenitor cells contains a large number of epitopes whose expression may be related to the maturation or function of the cells. Monoclonal antibodies specific for different epitopes have been reported to detect different numbers of CD34+ leukaemic blast cells. We wanted to confirm this observation and study whether parallel findings could be observed for normal haemopoietic progenitor cells. The cells were immunophenotyped by flow cytometry with a series of monoclonal antibodies reactive with different CD34 epitopes. Class III epitopes (resistant to enzymatic cleavage with neuraminidase, chymopapain and a glycoprotease from Pasteurella haemolytica) showed a broader distribution on normal haemopoietic progenitor cells and leukaemic blast cells than class I epitopes (sensitive to cleavage with all three enzymes) and class II epitopes (sensitive to degradation with glycoprotease and chymopapain, and resistant to neuraminidase). The subpopulation of normal progenitor cells which exclusively expressed class III epitopes had flow cytometric characteristics compatible with mature myeloid progenitor cells whereas class I, II and III epitopes were equally expressed on cells enriched for immature subsets. No discordant epitope expression could be observed for the more immature leukaemias (AML-M0/1) and a higher percentage of the more mature leukaemic blast cells (AML-M3 and AML-M4/5) expressed class III epitopes compared to the percentage expressing class I and II epitopes. These data indicate that CD34 class III epitopes are more broadly distributed on normal haemopoietic progenitor cells and leukaemic blast cells than class I and II epitopes, and that class I and II epitopes may be down-regulated prior to class III epitopes during normal haemopoietic progenitor cell differentiation. These findings should be considered when selecting CD34 mabs for quantification and positive selection of haemopoietic progenitor cells for research and clinical purposes.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Steen R,Tjønnfjord GE,Gaudernack G,Brinch L,Egeland Tdoi
10.1046/j.1365-2141.1996.7052322.xsubject
Has Abstractpub_date
1996-09-01 00:00:00pages
597-605issue
4eissn
0007-1048issn
1365-2141journal_volume
94pub_type
杂志文章abstract::In a randomized study that compared human leucocyte antigen-identical allogeneic granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral blood stem cell (PBSC) versus bone marrow (BM) transplantation, the expression of activation markers, CD23, CD25 and CD45RO by B cells, was compared in blood before and af...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2141.2001.02965.x
更新日期:2001-09-01 00:00:00
abstract::We report 12 years' experience with histocompatible, related donor marrow transplantation for 123 patients with acute lymphoblastic leukaemia; 104 > or = second remission. Four regimens were studied: cyclophosphamide (Cy)-+total body irradiation (TBI) (n = 35); Cy+fractionated TBI (n = 45); TBI+high-dose cytarabine (n...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb03253.x
更新日期:1994-01-01 00:00:00
abstract::Platelet and cell stimulation lead to plasma membrane remodelling, resulting in phosphatidylserine (PS) externalisation in the outer leaflet of the membrane, associated with the shedding of PS-rich microparticles (MPs), and contributes to thrombin generation by promoting the assembly of coagulation enzyme complexes. A...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05792.x
更新日期:2005-11-01 00:00:00
abstract::A patient with apparent anaemia and thrombocytopenia caused by a monoclonal paraprotein is described. The patient's serum contained a monoclonal IgM kappa, a cryoglobulin and a cold agglutinin. The cryoglobulin, similar to the serum paraprotein, was a monoclonal IgM kappa. Serum was studied to determine the relationsh...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00586.x
更新日期:1998-03-01 00:00:00
abstract::Up-regulation of Fas/APO-1 (CD95) on haematopoietic progenitors and Fas-mediated apoptosis have been suggested to occur in a possible pathological mechanism in some bone marrow failure syndromes. We examined the expression of Fas antigen and susceptibility to Fas-mediated suppression of donor-derived haematopoietic ce...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.02022.x
更新日期:2000-05-01 00:00:00
abstract::Bruton's tyrosine kinase (BTK) was previously demonstrated to be a mediator of oxidative stress-induced apoptosis in irradiated neoplastic B-cells and B-cell precursors. Defective BTK expression in leukaemic B-cell precursors from infants with t(4;11) acute lymphoblastic leukaemia has been associated with radiation re...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2006.06468.x
更新日期:2007-02-01 00:00:00
abstract::A female patient with delayed haemolytic transfusion reaction due to anti-M antibody is described. Diagnosis was based on laboratory evidence of haemolysis and on characteristic serological findings. Anti-M was detected in the recipient's serum 7 d after the last transfusion episode. This alloantibody had not been pre...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00970.x
更新日期:1998-10-01 00:00:00
abstract::While imatinib and other tyrosine kinase inhibitors (TKIs) are highly efficacious in the treatment of chronic myeloid leukaemia (CML), some patients become refractory to these therapies. After confirming that interleukin-3 receptor (IL3R, CD123) is highly expressed on CD34(+) /CD38(-) BCR-ABL1(+) CML stem cells, we in...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12978
更新日期:2014-09-01 00:00:00
abstract::The frequency and prognostic relevance of translocations t(11;14) and t(4;14), the most common translocations involving the immunoglobulin heavy chain (IgH) gene in multiple myeloma (MM), were investigated in 128 patients treated with intensive chemotherapy and autologous stem cell transplant. Myeloma cells were ident...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.04867.x
更新日期:2004-04-01 00:00:00
abstract::Eculizumab is the first and only medication approved for paroxysmal nocturnal haemoglobinuria (PNH) and atypical haemolytic uraemic syndrome (aHUS) treatment. However, eculizumab safety based on long-term pharmacovigilance is unknown. This analysis summarises safety data collected from spontaneous and solicited source...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.15790
更新日期:2019-04-01 00:00:00
abstract::Diamond Blackfan anaemia (DBA) is a rare, genetically and clinically heterogeneous, inherited red cell aplasia. Classical DBA affects about seven per million live births and presents during the first year of life. However, as mutated genes have been discovered in DBA, non-classical cases with less distinct phenotypes ...
journal_title:British journal of haematology
pub_type: 共识发展会议,杂志文章
doi:10.1111/j.1365-2141.2008.07269.x
更新日期:2008-09-01 00:00:00
abstract::Some case reports and a Japanese series suggest benefit from the use of rituximab in patients with intravascular large B-cell lymphoma (IVL). Rituximab efficacy was evaluated in Western patients with IVL, comparing outcome of 10 patients treated with rituximab + chemotherapy (R-CT) and of 20 patients treated with chem...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2008.07338.x
更新日期:2008-10-01 00:00:00
abstract::The arrangement of the T-cell receptor and immunoglobulin genes has been analysed in five cases of Lennert's lymphoma. All cases showed rearrangement of the gene coding for the beta chain of the T-cell receptor and a germline configuration of the immunoglobulin genes. This provides strong evidence that Lennert's lymph...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1986.tb02208.x
更新日期:1986-11-01 00:00:00
abstract::Sources for allogeneic stem cells for patients with haematological disorders lacking a histocompatible sibling donor include matched unrelated donor (MUD) and umbilical cord blood (UCB). A total of 51 patients with haematological disorders, treated with myeloablation and transplantation with either unrelated human leu...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04792.x
更新日期:2004-02-01 00:00:00
abstract::The serum "uracil+uridine" level, expressed as uracil, has been measured in 21 cases of vitamin B12 deficiency, in which the serum folate was normal, and compared with the level in 97 normal subjects. The level in the vitamin B12 deficient group (11.9 mumol/1). was significantly lower than in the controls (15.7 mumol/...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1976.tb03602.x
更新日期:1976-12-01 00:00:00
abstract::Sixty patients with von Willebrand's disease belonging to 34 unrelated families were classified into the various types of the disease by analysis of the multimer patterns of von Willebrand factor. Type I disease was observed in 62% of the families, a finding similar to the recently published British and Swedish series...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1986.tb02966.x
更新日期:1986-03-01 00:00:00
abstract::The records of 121 children presenting with acute lymphoblastic leukaemia between 1969 and 1982 were reviewed. The overall relapse free survival rate was 50%. However, girls presenting with a total white blood cell count of 20 X 10(9)/l or less (35% of all patients) had a particularly favourable prognosis with an 80% ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1983.tb01246.x
更新日期:1983-10-01 00:00:00
abstract::Preclinical data suggests anti-lymphoma potential for statins, metformin and cyclooxygenase-2 (COX-2) inhibitors. We performed a retrospective population-based study of all adults aged ≥66 years diagnosed with diffuse large B-cell lymphoma (DLBCL) or transformed lymphoma treated with a rituximab containing regimen, be...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.16635
更新日期:2020-11-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:1986-08-01 00:00:00
abstract::Routine testing on plasma from a patient due to undergo a coronary artery bypass graft operation revealed a prolonged thrombin clotting time associated with a normal plasma fibrinogen level when this was determined by a method not dependent upon the rate of fibrin formation. Fibrinogen purified from the patient's plas...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1980.tb05918.x
更新日期:1980-03-01 00:00:00
abstract::Feto-maternal incompatibility for the human platelet antigen HPA-1a is an important cause of severe fetal thrombocytopenia. The incidence is 1 in 1000-2000 pregnancies, which is more common than other conditions for which screening is presently carried out. Antenatal diagnosis and management are now available, but onl...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb05152.x
更新日期:1995-06-01 00:00:00
abstract::Chimaerism was studied early (2 weeks to 3 months) during haematopoietic reconstitution after bone marrow transplantation in 18 severe aplastic anaemia patients (acquired SAA: 14 patients; Fanconi anaemia: four patients). Fourteen patients received marrow from an identical sibling donor, one from the phenoidentical fa...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb08150.x
更新日期:1992-03-01 00:00:00
abstract::Lysosomal enzyme activities and isoenzyme profiles were measured in lymphoid and non-lymphoid leukaemic cells from childhood patients. High activities, especially of beta-hexosaminidase and alpha-mannosidase, were associated with leukaemic cells of myeloid or monocytic origin. Leukaemic cells from two children with ac...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1985.tb02970.x
更新日期:1985-01-01 00:00:00
abstract::The clinical characteristics and prognostic relevance of acute myeloid leukaemia (AML) with myelodysplastic features remains to be clarified in children. We prospectively examined 443 newly diagnosed patients in a multicentre clinical trial for paediatric de novo AML, and found 'AML with myelodysplasia-related changes...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12993
更新日期:2014-10-01 00:00:00
abstract::The identification of acquired CALR mutations in patients with essential thrombocythaemia (ET) or myelofibrosis (MF) has meant that disease-initiating mutations can now be detected in about 90% of all patients with a myeloproliferative neoplasm (MPN). Here, we show that only those CALR mutations that cause a +1 frames...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.14512
更新日期:2017-04-01 00:00:00
abstract::This retrospective analysis was conducted in 64 patients diagnosed with type I cryoglobulinaemia (CG) followed at two French centres. Median follow-up was 6·75 years. CG was IgG in 60% and IgM in 40% of all cases and was asymptomatic in 16 patients (25%). Cold-triggered ischaemic skin manifestations were observed in 3...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/bjh.13196
更新日期:2015-03-01 00:00:00
abstract::Murine monoclonal antibodies (MoAbs) were produced against the blood group KEL1 glycoprotein (93 kD component) immunopurified from human erythrocytes. One monoclonal antibody, 5A11 (IgGa, kappa), detects by immunoblotting a 93 and 184 kD component from KEL: 1,-2 or KEL: -1,2 red cell membrane preparations, separated b...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb04539.x
更新日期:1991-10-01 00:00:00
abstract::Myeloproliferative disorders (MPD) are reported in 25-65% of patients with splanchnic vein thrombosis (SVT). Diagnostic criteria for MPD have not been fully established in this context. Using clusters of abnormal megakaryocytes in bone marrow (BM) biopsy as a reference standard for Philadelphia negative MPD, we assess...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05490.x
更新日期:2005-05-01 00:00:00
abstract::Therapy for a first episode of venous thromboembolism (VTE) typically includes a vitamin K antagonist, such as warfarin, for 3-6 months at an international normalized ratio (INR) of 2-3. After the cessation of warfarin therapy, unprovoked VTE is associated with a recurrence rate of 5-15% per year. Prolonging initial t...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.05174.x
更新日期:2004-10-01 00:00:00
abstract::CD37 is cell surface tetraspanin present on normal and malignant B cells. Otlertuzumab (TRU-016) is a novel humanized anti-CD37 protein therapeutic. Patients with relapsed or refractory follicular non-Hodgkin lymphoma (FL), mantle cell lymphoma (MCL), or Waldenström's macroglobulinaemia (WM) received otlertuzumab at 2...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.13099
更新日期:2015-01-01 00:00:00