Abstract:
:The use of microfabrication technology in the study of biological systems continues to grow rapidly in both prevalence and ascendancy. Customised microdevices that provide superior results than traditional macroscopic methods can be designed in order to investigate specific cell types and cellular processes. This study showed the benefit of this approach in precisely characterising the progressive losses of surface area and haemoglobin (Hb) content by the human red blood cell (RBC), from newborn reticulocyte to senescent erythrocyte. The high-throughput, multiparametric measurements made on individual cells with a specialised microdevice enabled, for the first time, delineation and quantification of the losses that occur during the two stages of the human RBC lifespan. Data acquired on tens of thousands of red cells showed that nearly as much membrane area is lost during the 1-2 d of reticulocyte maturation (c. 10-14%) as in the subsequent 4 months of erythrocyte ageing (c. 16-17%). The total decrease in Hb over the red cell lifespan is also estimated (c. 15%) and a model describing the complete time-course of diminishing mean RBC area and Hb is proposed. The relationship between the losses of Hb and area, and their possible influence on red cell lifespan, are discussed.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Gifford SC,Derganc J,Shevkoplyas SS,Yoshida T,Bitensky MWdoi
10.1111/j.1365-2141.2006.06279.xsubject
Has Abstractpub_date
2006-11-01 00:00:00pages
395-404issue
3eissn
0007-1048issn
1365-2141pii
BJH6279journal_volume
135pub_type
杂志文章abstract::Decreased bone formation plays an important role in the development of lytic lesions during the late stage of multiple myeloma (MM). Release of insulin-like growth factor binding protein-4 (IGFBP4) by tumour cells adjacent to bone may inhibit IGF-I-stimulated osteoblast growth and contribute to decreased bone formatio...
journal_title:British journal of haematology
pub_type: 杂志文章
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abstract::Severe neutropenia and protracted thrombocytopenia remain serious clinical problems following cord blood transplantation (CBT) due to the paucity of stem and progenitor cells in the grafts. Administration of ex-vivo expanded megakaryocyte progenitor cells may facilitate platelet production. We propose a novel strategy...
journal_title:British journal of haematology
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journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:
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abstract::The E4BP4 basic leucine zipper (bZIP) transcription factor is regulated by interleukin-3 (IL-3) in pro-B cells and has been reported to promote survival of the murine IL-3-dependent pro-B cell lines, FL5.12 and Baf-3. The E2A-HLF oncoprotein arises from a t(17;19) translocation in childhood pro-B cell acute lymphoblas...
journal_title:British journal of haematology
pub_type: 杂志文章
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abstract::Gaucher disease (GD) is an autosomal recessive inherited defect of the lysosomal enzyme glucocerebrosidase (GluCerase) that leads to glucosylceramide (GluCer) accumulation. We previously demonstrated the existence of imbalances in certain lymphocyte populations in GD patients. We now show that GluCerase-deficient mono...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章
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abstract::High-dose chemotherapy with melphalan followed by autologous haematopoietic cell transplantation (AHCT) is a standard of care in young patients (<65 years) with multiple myeloma. Most myeloma patients, however, are older than 65 years at the time of diagnosis, and the findings of numerous single-centre and registry st...
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journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:1998-12-01 00:00:00
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journal_title:British journal of haematology
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journal_title:British journal of haematology
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pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.01963.x
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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
doi:10.1111/j.1365-2141.1994.tb04983.x
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journal_title:British journal of haematology
pub_type: 杂志文章
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pub_type: 杂志文章,评审
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更新日期:2016-05-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
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pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:British journal of haematology
pub_type: 杂志文章
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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.1365-2141.1995.tb05580.x
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