Abstract:
:Iron is required for monocyte/macrophage differentiation of HL-60 leukaemia cells. Differentiation requires induction of the cyclin-dependent kinase inhibitor p21 (WAF1/CIP1), and cell cycle arrest at the G1/S checkpoint. With iron depletion, p21 induction and differentiation are blocked. To establish the roles of iron and p21 in normal monocyte/macrophage differentiation, we examined generation of dendritic cells (DCs) and macrophages from peripheral monocytes. Monocytes were cultured with interleukin 4 and granulocyte-macrophage colony-stimulating factor (GM-CSF), then treated with lipopolysaccharide to produce DCs or with M-CSF to produce macrophages. Iron deprivation was induced by desferrioxamine (DF). Monocyte-derived DCs had characteristic phenotype and morphology, and stimulated proliferation of naïve allogeneic T lymphocytes. In contrast, DCs generated under iron deprivation were phenotypically undifferentiated and did not stimulate T cells. Similarly, macrophages expressed a characteristic phenotype and morphology, and phagocytosed latex beads, but macrophages generated under iron deprivation failed to develop a mature phenotype and had impaired phagocytosis. Iron deprivation blocked induction of p21 (WAF1/CIP1) expression in both DC and macrophage cultures. Furthermore, p21 antisense oligonucleotides, but not sense oligonucleotides, inhibited both DC and macrophage differentiation. These data indicate that a key role of iron in haematopoiesis is to support induction of p21 which, in turn, is required for DC and macrophage differentiation.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Kramer JL,Baltathakis I,Alcantara OS,Boldt DHdoi
10.1046/j.1365-2141.2002.03498.xsubject
Has Abstractpub_date
2002-06-01 00:00:00pages
727-34issue
3eissn
0007-1048issn
1365-2141pii
3498journal_volume
117pub_type
杂志文章abstract::Cytogenetic abnormalities (CA), especially of chromosome 13, have been used to identify a subgroup of previously untreated multiple myeloma (MM) patients with very poor prognosis despite high-dose therapy (HDT). We examined the prognostic implications of CA in 1000 MM patients receiving melphalan-based tandem autotran...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04455.x
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abstract::The aim of our study was to investigate whether haemophilia A patients with inversion of intron 22 are at high risk for non-inhibitory anti-FVIII antibodies development detected by ELISA. It is known that patients with severe forms of haemophilia A are more likely to develop anti-FVIII antibodies. The incidence of inh...
journal_title:British journal of haematology
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doi:10.1046/j.1365-2141.1997.1082922.x
更新日期:1997-06-01 00:00:00
abstract::We have identified a tissue kallikrein in polymorphonuclear (PMN) leucocytes of normal human blood and bone marrow by immunocytochemistry, radioimmunoassay and enzymology. Immunoreactive tissue kallikrein was visualized in the mature neutrophil leucocytes and in immature forms such as metamyelocytes and myelocytes. No...
journal_title:British journal of haematology
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更新日期:1989-07-01 00:00:00
abstract::The clinical significance of Aspergillus fungaemia in the setting of a deep-seated aspergillosis has not been clearly established. Among 107 microbiologically documented Aspergillus infections in patients with haematological diseases observed over a 17-year period, blood cultures grew Aspergillus species from 10 cases...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2141.2001.02901.x
更新日期:2001-07-01 00:00:00
abstract::Little is known about the impact of cytomegalovirus (CMV) infections that occur after human leucocyte antigen (HLA)-matched unrelated donor (MUD) non-myleoablative haematopoietic stem cell transplantation (HCT). We analysed the incidence, onset and outcomes of CMV infections in 59 recipients of MUD and in 109 recipien...
journal_title:British journal of haematology
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abstract::Ibrutinib is associated with response rate of 90% and median progression-free survival (PFS) in excess of 5 years in Waldenström macroglobulinaemia (WM) patients. CXCR4 mutations are detected in 30-40% of patients with WM and associate with lower rates of response and shorter PFS to ibrutinib therapy. Both frameshift ...
journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb04705.x
更新日期:1993-04-01 00:00:00
abstract::The myelodysplastic syndromes (MDS) have a significant frequency of evolution into acute myeloid leukaemia (AML). Approximately 30% of MDS patients show activating mutations of the N-RAS proto-oncogene, and these patients are at increased risk of leukaemic evolution. Long-term survivors of aplastic anaemia (AA) and pa...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb05411.x
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1996-10-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1985.tb02997.x
更新日期:1985-02-01 00:00:00
abstract::We describe the characterization of a novel 7.9 kb deletion that eliminated one of the duplicated alpha-globin genes, causing an alpha+-thalassaemia phenotype in two independent carriers of Suriname-Indian origin. The molecular characterization of the deletion breakpoint fragment revealed neither involvement of Alu re...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04060.x
更新日期:2003-01-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.15772
更新日期:2019-06-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1987.tb02331.x
更新日期:1987-10-01 00:00:00
abstract::Bone marrow (BM) from patients affected by multiple myeloma (MM), exhibiting monoclonal gammopathy of undetermined significance (MGUS) or with non-Hodgkin lymphoma (NHL) as well as from healthy donors were investigated for the presence of human herpesvirus-8 (HHV-8) DNA sequences. ORF 26 sequences were detected in 36-...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02702.x
更新日期:2001-04-01 00:00:00
abstract::We examined major histocompatibility complex (MHC) class II expression in B cells, peripheral blood monocytes, activated T cells, epidermal Langerhans cells, monocyte-derived dendritic cells, dermal microvascular endothelial cells (DMEC) and fibroblasts of twin brothers with MHC class II deficiency. Although residual ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.03105.x
更新日期:2001-11-01 00:00:00
abstract::The number of novel therapies for the treatment of myeloma is rapidly increasing, as are the clinical trials evaluating them in combination with other novel and established therapies. Proteasome inhibitors, immunomodulatory agents and monoclonal antibodies are the most well known and studied classes of novel agents ta...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
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更新日期:2018-07-01 00:00:00
abstract::The Wiskott-Aldrich syndrome (WAS) is a severe disease of platelets (small size, thrombocytopenia) and lymphocytes (immunodeficiency) arising from mutations of the X-chromosome gene WASP. Because of the prominent role of cytoskeletal abnormalities, particularly the paucity of surface microvilli, in the cellular pathol...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01508.x
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abstract::The past decade has seen an explosion of interest in the epigenetics of cancer, with an increasing understanding that this form of genomic modification plays a critical role in pathogenesis. The malignant phenotype results from a step-wise increase of both genetic abnormalities and epigenetic modifications, leading to...
journal_title:British journal of haematology
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abstract::The presence of small amounts of C3d on freshly obtained normal red blood cells (RBC) was demonstrated by a radio-labelled antiglobulin technique; this increased 1.5-fold after incubation in fresh normal serum. No significant further increase in bound C3d was demonstrated for cDE/cDE, CDe/CDe, -D-/-D- RBC maximally se...
journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
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doi:
更新日期:2000-12-01 00:00:00
abstract::Colony-forming cells of the granulocytic/macrophage ( CFCGM ) and eosinophilic ( CFCEo ) series were grown from bone marrow and/or peripheral blood of 20 patients with persistent eosinophilia mainly due to helminthic diseases and of 17 patients without eosinophilia. The semi-solid culture technique of haemopoietic cel...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1984-05-01 00:00:00
abstract::Megakaryopoiesis was examined in 10 patients (eight females and two males) with cyclic thrombocytopenia (CT) to investigate the underlying pathogenesis. Numbers of CFU-Meg and megakaryocytes and the mean cytoplasmic area (mean area) of megakaryocytes at the peak, nadir, ascent mid phase, and descent mid phase of the p...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb05267.x
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abstract::We present an immunocompetent patient with transfusion-associated graft-versus-host disease (GVHD), in which chimaerism of peripheral blood lymphocytes was demonstrated by analysis of a highly polymorphic genome. The patient was treated successfully with anti-CD3 monoclonal antibody, OKT3 and cyclosporin A. Although i...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb04838.x
更新日期:1994-04-01 00:00:00
abstract::Plasma cells isolated from bone marrow (BM) aspirates of 15 patients with active multiple myeloma (MM) were cultured and analysed for in vitro proliferative response and Ig-synthesis upon stimulation with interleukin-3 (IL-3), interleukin-4 (IL-4) and interleukin-6 (IL-6). The proliferative response, determined as Ki-...
journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:1991-12-01 00:00:00
abstract::In a uniform series of 170 untreated myeloma patients (MM) we investigated the distribution of T cell subsets in peripheral blood (PB) and their relationship with the most relevant disease characteristics, including survival. CD4 cells were significantly decreased both in percentage and absolute numbers (P less than 0...
journal_title:British journal of haematology
pub_type: 杂志文章
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abstract::The heterogeneity of pyruvate kinase (PK) deficiency associated with hereditary haemolytic anaemia is emphasized by studies of a kindred harbouring two distinct mutant forms of this enzyme, both of which were kinetically defective with markedly decreased affinities for the substrate, phosphoenolypyruvate. The two isoe...
journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:1976-09-01 00:00:00
abstract::Transient leukaemia (TL) in neonates with Down syndrome (DS) is characterized by the transient appearance of blast cells in the peripheral blood that resolves spontaneously. Some TL patients die at an early age due to organ failure. Seventy DS patients with TL were studied retrospectively to identify clinical and labo...
journal_title:British journal of haematology
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doi:10.1111/j.1365-2141.2008.07231.x
更新日期:2008-08-01 00:00:00
abstract::We developed a novel method for the chemical modification of cytokines with synthetic polymers to increase the therapeutic efficacy of the former in vivo. A pH-reversible amino-protective reagent, dimethylmaleic anhydride (DMMAn), was used for modification of interleukin-6 (IL-6) with polyethylene glycol (PEG). The no...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02508.x
更新日期:2001-01-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2011-05-01 00:00:00