Abstract:
:During definitive erythropoiesis, erythroid precursors undergo differentiation through multiple nucleated states to an enucleated reticulocyte, which loses its residual RNA/organelles to become a mature erythrocyte. Over the course of these transformations, continuous changes in membrane proteins occur, including shifts in protein abundance, rates of expression, isoform prominence, states of phosphorylation, and stability. In an effort to understand when assembly of membrane proteins into an architecture characteristic of the mature erythrocyte occurs, we quantitated the lateral diffusion of the most abundant membrane protein, band 3 (AE1), during each stage of erythropoiesis using single particle tracking. Analysis of the lateral trajectories of individual band 3 molecules revealed a gradual reduction in mobility of the anion transporter as erythroblasts differentiated. Evidence for this progressive immobilization included a gradual decline in diffusion coefficients as determined at a video acquisition rate of 120 frames/s and a decrease in the percentage of compartment sizes >100 nm. Because complete acquisition of the properties of band 3 seen in mature erythrocytes is not observed until circulating erythrocytes are formed, we suggest that membrane maturation involves a gradual and cooperative assembly process that is not triggered by the synthesis of any single protein.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Kodippili GC,Spector J,Kang GE,Liu H,Wickrema A,Ritchie K,Low PSdoi
10.1111/j.1365-2141.2010.08268.xsubject
Has Abstractpub_date
2010-09-01 00:00:00pages
592-600issue
5eissn
0007-1048issn
1365-2141pii
BJH8268journal_volume
150pub_type
杂志文章abstract::The bone marrow (BM) microenvironment supports leukaemia cell survival and proliferation. The roles played by adhesive receptor interactions in the survival of T-lineage acute lymphoblastic leukaemia (T-ALL) cells on BM stromal cells are not well understood. Recently, we have developed an assay that partially recapitu...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.03182.x
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abstract::This report concerns congenitally Na(+)-K(+) leaky red cells of the 'hereditary stomatocytosis' class. Three new isolated cases and one new pedigree are described, and one previously reported case is expanded. In all cases, Western blotting of red cell membranes revealed a deficiency in the 32 kDa membrane protein, st...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.04965.x
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abstract::Besides circulating in normal plasma, von Willebrand factor (VWF) is also stored at relatively high concentration within the alpha-granules of platelets. This pool of platelet VWF exists distinct from plasma VWF, and is enriched in haemostatically-active high molecular weight multimers. Interestingly, the glycosylatio...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
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更新日期:2010-03-01 00:00:00
abstract::Two cases of Ph1-positive chronic granulocytic leukaemia with hitherto undescribed translocations are presented. In case 1 the deleted part of chromosome number 22q- was translocated to the short arm of the X chromosome, t(X;22)(p22;q11). Pronounced basophilia, trisomy 19 in the majority of metaphases, and a partial c...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1979.tb05847.x
更新日期:1979-02-01 00:00:00
abstract::The in vitro efficacies of three new drugs--clofarabine (CLOF), nelarabine (NEL) and flavopiridol (FP) - were assessed in a panel of acute lymphoblastic leukaemia (ALL) cell lines. The 50% inhibitory concentration (IC50) for CLOF across all lines was 188-fold lower than that of NEL. B-lineage, but not T-lineage lines,...
journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb04974.x
更新日期:1994-09-01 00:00:00
abstract::Cytotoxic T lymphocyte (CTL) lines specific for allogeneic antigens were generated by in vitro stimulation of donor-derived peripheral blood mononuclear cells obtained from patients who received human leucocyte antigen (HLA)-matched allogeneic haematopoietic stem cell transplantation (HSCT). One of the allogeneic anti...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05843.x
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abstract::Human umbilical vein endothelial cells (HUVEC) in primary confluent cultures lost their normal polygonal shape and assumed a 'contracted' appearance as judged by phase contrast microscopy when exposed to highly purified bovine thrombin (2 N.I.H. u/ml). Total actin in thrombin-exposed cells did not differ from that of ...
journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 杂志文章
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abstract::Anti-cardiolipin antibody (aCL) measurement is only semi-reproducible, and current assays detect irrelevant as well as clinically significant antibodies. Factors found to influence results included the source of the enzyme-linked immunoabsorbent assay (ELISA) plate, and its pretreatment with solvents; the nature of th...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00532.x
更新日期:1998-01-01 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:1994-01-01 00:00:00
abstract::About 30% of patients with severe aplastic anaemia (SAA) unresponsive to one course of immunosuppressive (IS) therapy with antithymocyte or antilymphocyte globulin can achieve complete or partial remission after a second IS treatment. Among various second-line treatments, rabbit ATG (r-ATG) could represent a safe and ...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1046/j.1365-2141.1999.01693.x
更新日期:1999-11-01 00:00:00
abstract::Rats were rendered anaemic by a single bleeding or by a single injection of phenylhydrazine. At various times after the onset of anaemia they were nephrectomized and challenged with a 6 h exposure to hypoxia. The erythropoietin titre observed at the end of this hypoxic period was corrected for renal erythropoietin ind...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1980.tb03811.x
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04602.x
更新日期:2003-11-01 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
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journal_title:British journal of haematology
pub_type: 杂志文章,评审
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journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 杂志文章,评审
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更新日期:2016-05-01 00:00:00
abstract::Membrane protein synthesis in human immature erythroid cells was studied by incubating the cells with 35S-methionine in vitro. The radioactive precursor amino acid was incorporated into membrane protein in a linear fashion for approximately 60 min, after which there was only a slight increase in incorporation. Intrace...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1981.tb02777.x
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abstract::In the last few years, mutations that cause disease through increased efficiency of mRNA translation have been discovered. Hereditary hyperferritinaemia-cataract syndrome (HHCS) arises from various point mutations or deletions within the iron-responsive element (IRE) in the 5'-UTR of the L-ferritin mRNA. Each unique m...
journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1999-12-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1981.tb02812.x
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abstract::To identify and treat patients at high risk of cytomegalovirus (CMV) pneumonia after bone marrow transplantation (BMT), we tested for CMV viraemia weekly, and performed broncho-alveolar lavage (BAL) on day 35 post-transplant in 63 recipients. 36 allogeneic BMT recipients were at a high risk of CMV pneumonia (25 CMV-se...
journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:1997-07-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03928.x
更新日期:2002-12-01 00:00:00
abstract::The regulation of granulocyte-colony stimulating factor (G-CSF) and interleukin-6 (IL-6) mRNA was studied in human adherent monocytes in response to the protein kinase C activator, oleolyl-acetylglycerol (OAG), the calcium-ionophore A23187 and the cyclic AMP elevating agents, dibutyryl c-AMP (DBcAMP), cholera toxin an...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb04375.x
更新日期:1991-05-01 00:00:00
abstract::Pure fetal blood was obtained by direct-vision fetoscopy from 66 fetuses at 17-24 weeks gestation. The concentration of GSH and the activities of the enzymes gamma-glutamylcysteine synthetase (GCS), glutathione synthetase (GS), glutathione reductase (GR) and glutathione peroxidase (GPx) were analysed by established te...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1984.tb02947.x
更新日期:1984-08-01 00:00:00
abstract::We studied the outcome of 24 peripheral blood stem cell (PBSC) graft recipients, who were T-cell depleted (TCD) with either 20 mg (n = 14) or 10 mg (n = 10) Campath-1H in vitro, in comparison with a retrospective cohort of 23 unmanipulated (UM) PBSC recipients. While the neutrophil engraftment was similar, the platele...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04228.x
更新日期:2003-04-01 00:00:00