Abstract:
:Physiological parameters such as pH and oxygen tension probably play significant roles in the regulation of haemopoiesis in the bone marrow microenvironment, but these roles have yet to be characterized in detail. We have found that changes in culture pH (0.2 units) can cause significant changes in the culture composition of mature cells and colony-forming cells (CFCs), especially in the presence of erythropoietin (Epo). Peripheral blood (PB) CD34+ cells cultured at different pH values (7.15-7.6) were characterized using total cell counts, colony assays, morphological analysis. haemoglobin staining, flow cytometry, immunocytochemical staining, and Western blots. Cultures performed at high (7.6) pH contained greater numbers of haemoglobin-positive and band-3-positive cells. and acquired these erythroid differentiation markers sooner than standard (7.35) and low (7.1) pH cultures. Flow cytometry using CD71 and CD45RA antigens also indicated that erythroid differentiation proceeds faster at high pH and is blocked at an intermediate stage by low pH. Morphological data confirmed that high pH cultures had been shifted towards late-stage erythroid compartments as compared to low and standard pH cultures. These findings have important implications both in elucidating the regulatory role of pH in the bone marrow microenvironment and for the design of in vitro systems to study the development of erythroid cells.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
McAdams TA,Miller WM,Papoutsakis ETdoi
10.1046/j.1365-2141.1998.00975.xsubject
Has Abstractpub_date
1998-11-01 00:00:00pages
317-25issue
2eissn
0007-1048issn
1365-2141journal_volume
103pub_type
杂志文章abstract::Hodgkin's lymphoma (HL) can be cured in most of the patients, but in case of refractory disease or relapse after autologous stem cell transplantation (SCT) the prognosis becomes very poor. In these patients a consensus about the standard approach has not been achieved so far and only allogeneic SCT has shown a long-te...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2010.08492.x
更新日期:2011-02-01 00:00:00
abstract::The Complement 1 trial investigated the efficacy and safety of ofatumumab + chlorambucil with chlorambucil monotherapy in patients with previously untreated chronic lymphocytic leukaemia (CLL). On long-term follow-up in the chemoimmunotherapy arm vs. the chemotherapy arm there was an estimated 12% (not significant) an...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.16625
更新日期:2020-09-01 00:00:00
abstract::We have determined the causative mutation in 12 cases of glucose-6-phosphate dehydrogenase deficiency associated with chronic non-spherocytic haemolytic anaemia. In 11 of them the mutation we found had been previously reported in unrelated individuals. These mutations comprise seven different missense mutations and a ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00763.x
更新日期:1998-06-01 00:00:00
abstract::A multicentre single-arm study testing the efficacy and toxicity of the oral combination of fludarabine and cyclophosphamide (FC) over 5 d in 75 patients with untreated B cell-chronic lymphocytic leukaemia. Oral FC demonstrated high efficacy with overall (OR) and complete response (CR) rates of 80% and 53%, respective...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2008.07309.x
更新日期:2008-10-01 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::A single immunoglobulin light chain lambda was identified in the blast cells of two out of 12 patients with common acute lymphoblastic leukaemia (C-ALL) using the alkaline phosphatase/anti-alkaline phosphatase (APAAP) technique. Inhibition at the cell surface proved that the reaction was a genuine anti-lambda reaction...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb06274.x
更新日期:1989-01-01 00:00:00
abstract::Mobilization of haemopoietic precursor cells into the circulation by the combination of cytokines, stem cell factor (SCF) and G-CSF in previously untreated patients with carcinoma of the breast resulted in increased yield of collected peripheral blood precursor cells (PBPC). This mobilization of PBPC by SCF with G-CSF...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01231.x
更新日期:1999-03-01 00:00:00
abstract::This trial explored the efficacy of re-induction chemotherapy including bortezomib in paediatric relapsed/refractory acute lymphoblastic leukaemia. Patients were randomized 1:1 to bortezomib (1.3 mg/m2 /dose) administered early or late to a dexamethasone and vincristine backbone. Both groups did not differ regarding p...
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.15233
更新日期:2018-05-01 00:00:00
abstract::Glucocorticoid (GC) effects are mediated by the glucocorticoid receptor (GR). Several studies have demonstrated that a lower number of receptors per cell were associated with poor GC response. The regulation of GR expression is complex; the levels of GR can be autologously regulated by its ligand and also by transcrip...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2008.07549.x
更新日期:2009-03-01 00:00:00
abstract::Refractory anaemia with ring sideroblasts (RARS) is distinguished by hyperplastic inefficient erythropoiesis, aberrant mitochondrial ferritin accumulation and anaemia. Heterozygous mutations in the spliceosome gene SF3B1 are found in a majority of RARS cases. To explore the link between SF3B1 mutations and anaemia, we...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.13610
更新日期:2015-11-01 00:00:00
abstract::Knowledge of the absolute and relative risk of venous thromboembolism (VTE) in and around pregnancy would be crucial in identifying when to commence and cease thromboprophylaxis in women who would benefit from such intervention. We addressed this hypothesis using a large prospective primary care database from the Unit...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2011.08956.x
更新日期:2012-02-01 00:00:00
abstract::Recent studies concerning the numbers of circulating clonal B cells in patients with multiple myeloma (MM) have reported conflicting data regarding the exact levels of clonal B cells and the existence of clonal cells in the CD34 compartment. In this report we show that high numbers of clonal cells with a phenotype of ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::Expression of heat-shock proteins (hsp) was analysed in the leukaemic cells of 12 patients with acute myeloid leukaemia (AML) and nine patients with chronic myeloid leukaemia (CML). Using monoclonal antibodies to hsp70, hsp90 and hsp60 (ML30, a mycobacterial antigen with homology to human hsp60), we measured hsp level...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb03395.x
更新日期:1995-05-01 00:00:00
abstract::Thrombomodulin (TM) is an endothelial cell glycoprotein that acts as an anticoagulant. Mutation in the TM gene is a potential risk factor for thrombosis. The first TM mutation identified was a heterozygous substitution of T for G at nucleotide position 1456, which predicted Asp468 with Tyr in a Ser/Thr-rich domain. To...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01567.x
更新日期:1999-08-01 00:00:00
abstract::The Wiskott-Aldrich syndrome (WAS) is an X-linked recessive disorder characterized by thrombocytopenia, immunodeficiency and eczema. X-linked thrombocytopenia (XLT) is a mild form of WAS with isolated thrombocytopenia. Both phenotypes are caused by mutation of the Wiskott-Aldrich syndrome protein (WASP) gene. In this ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01694.x
更新日期:1999-11-01 00:00:00
abstract::We describe a patient with a 9-year history of thrombotic thrombocytopenic purpura (TTP) who exhibited four relapses. Intravenous immunoglobulin (IVIg) was effective for these four episodes. The patient was well and the laboratory findings were within normal ranges between each episode, although unusually large von Wi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.01930.x
更新日期:2000-03-01 00:00:00
abstract::To create immortal mesenchymal cell lines, we transduced primary human bone marrow mesenchymal cells with telomerase reverse transcriptase (TERT). TERT+ mesenchymal cells continued to grow for > 2 years; parallel TERT- cultures underwent senescence after 15 weeks. TERT+ mesenchymal cells did not form foci in soft agar...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04217.x
更新日期:2003-03-01 00:00:00
abstract::CD19 and CD21 (CR2) are co-receptors found on B-cells and various B-cell lymphomas, including non-Hodgkin lymphoma. To evaluate their suitability as targets for therapy of such lymphomas using internalization-dependent antibody-drug conjugates [such as antibody-4-(N-maleimidomethyl)cyclohexane-1-carboxylate, (N2'-deac...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2007.06883.x
更新日期:2008-01-01 00:00:00
abstract::A number of disorders cause iron overload: some are of genetic origin, such as hereditary haemochromatosis, while others are acquired, for instance due to repeated transfusions. This article reviews the treatment options for hereditary haemochromatosis, with special attention to the use of erythrocytapheresis. In gene...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.14376
更新日期:2016-12-01 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::Cardiopulmonary bypass (CPB) induces a bleeding defect which leads to enhanced blood loss. A double-blind study was carried out comparing aprotinin with placebo in patients undergoing re-operation for heart valve replacement. The results confirm that aprotinin is effective at reducing such loss. In the placebo treated...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2141.1993.tb03344.x
更新日期:1993-11-01 00:00:00
abstract::In an attempt to compare the sensitivity of bone radiographs and bone marrow magnetic resonance (MR) imaging for bone lesion detection in patients with stage III multiple myeloma (MM) and to evaluate the possible consequences of the replacement of the conventional radiographic skeletal survey (RSS) by an MR survey of ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01529.x
更新日期:1999-07-01 00:00:00
abstract::Cooley's original description of beta-thalassaemia major included marked bone deformities as a characteristic feature. These were thought to be due to expansion of haemopoiesis attempting to compensate for the congenital anaemia. Regular blood transfusions from infancy prevents these skeletal problems. Nevertheless, s...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.01108.x
更新日期:1998-12-01 00:00:00
abstract::We evaluated the additional benefit of Technetium(99)-sestamibi (99mTc-MIBI) scanning in comparison with standard X-ray techniques for multiple myeloma patients either at diagnosis or during follow-up. Between February 2001 and January 2005, 397 whole body scans were acquired. On 229 scans performed at diagnosis, 146 ...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2006.06489.x
更新日期:2007-03-01 00:00:00
abstract::Acquired haemophilia A (AHA) is a rare bleeding disorder characterized by the sudden generation of autoantibodies against factor VIII (FVIII) in individuals with no previous history of abnormal haemostasis. Understanding the pathogenesis of this disease has been hampered by the rarity of the patients and the difficult...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2011.08890.x
更新日期:2012-01-01 00:00:00
abstract::The presence of autoimmune diseases, including Systemic Sclerosis (SSc), suggest failure of the normal immune regulatory processes leading to activation and expansion of autoreactive effector immune cells. Recently, stem cell transplantation emerged as a novel rescue therapy for a variety of refractory autoimmune dise...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.13201
更新日期:2015-02-01 00:00:00
abstract::A Children's Oncology Group clinical trial aimed to determine if bortezomib (B) increased the efficacy of ifosfamide and vinorelbine (IV) in paediatric Hodgkin lymphoma (HL). This study enrolled 26 relapsed HL patients (<30 years) treated with two to four cycles of IVB. The primary endpoint was anatomic complete respo...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.13388
更新日期:2015-07-01 00:00:00
abstract::Pituitary tumour transforming gene (PTTG) isolated from pituitary tumour cells transforms cells in vitro and causes in vivo tumour formation. PTTG is expressed in several human tumours and cell lines. In normal adult tissues, the testis expresses abundant levels of PTTG mRNA comparable to that found in tumour cells. A...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03941.x
更新日期:2002-12-01 00:00:00
abstract::An autoimmune mechanism in the pathogenesis of myelodysplastic syndrome (MDS) is suggested by response to immunosuppression, with CD8+ T-lymphocytes implicated in the haematopoietic suppression. We therefore sought evidence for human leucocyte antigen (HLA) restriction and variant frequency differences in selected pol...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03452.x
更新日期:2002-06-01 00:00:00
abstract::Cord blood (CB) has successfully been used as a stem cell source for haemopoietic reconstitution. However, a significant delay in platelet engraftment is consistently found in CB versus adult peripheral blood (PB) or bone marrow transplants. We sought to determine whether or not CB megakaryocytes have reached terminal...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02954.x
更新日期:2001-08-01 00:00:00