The clearance time of infused hematopoietic stem cell from the blood circulation.
Transfus Apher Sci
; 48(2): 235-9, 2013 Apr.
Article
em En
| MEDLINE
| ID: mdl-23428427
ABSTRACT
There is no detailed information about the clearance time of infused hematopoietic stem cell (HSC) from the blood circulation in humans. In this prospective study, peripheral blood CD34+ cell counts were detected during the 4days period following autologous HSC transplantation in 20 patients by means of flow cytometry. The median CD34+ cells were at the highest level in the first hour and decreased below pre-infusion values on the first day after HSC infusion. By nonparametric analysis, positive correlation was found between CD34+ cell levels at the first hour and the post-thaw CD34+ cell dose (r=0.57, p=0.01). An inverse correlation was determined between CD34+ cell levels at the first hour and neutrophil engraftment (r=-0.54, p=0.01). Compared with the patients having CD34+ cell count of ⩾2µL(-1) in the first hour following HSC infusion, the patients having CD34+ cell count of <2µL(-1) had delayed both neutrophil (20 vs. 12, p=0.008) and platelet (47 vs. 11, p=0.01) engraftments. Our results indicated that infused HSCs were removed from the blood circulation within 1day. In addition, CD34+ cell levels at the first hour may be used as an important indicator to predict the delay of neutrophil and platelet engraftments.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Células-Tronco Hematopoéticas
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Doença de Hodgkin
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Antígenos CD34
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Transplante de Células-Tronco de Sangue Periférico
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Mieloma Múltiplo
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Transfus Apher Sci
Ano de publicação:
2013
Tipo de documento:
Article