Enhanced collection of phenotypic and engrafting human cord blood hematopoietic stem cells at 4°C.

Enhanced collection of phenotypic and engrafting human cord blood hematopoietic stem cells at 4°C.
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DOI:
10.1002/stem.3243
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发表时间:
2020-10-01
期刊:
Stem cells (Dayton, Ohio)
影响因子:
--
通讯作者:
Capitano ML
Capitano ML
中科院分区:
其他
文献类型:
--
作者:
Broxmeyer HE;Cooper S;Capitano ML

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在婴儿出生时收集的脐带血(CB)中的造血干细胞(HSC)数量是CB在造血细胞移植(HCT)中有效使用的限制因素。我们现在证明,在婴儿出生后几分钟内在4°C下收集和处理人CB导致严格定义的表型HSC和自我更新的NSG免疫缺陷小鼠移植和SCID重建细胞的数量显著增加。这与造血祖细胞(HPC)数量减少有关,如先前对于缺氧收集/处理的细胞阻断环境空气诱导的HSC向HPC的分化所指出的。因此,我们已经定义了一种简单的,具有成本效益的方法来收集更多数量的CB HSC,其可能用于临床CB HCT。
Hematopoietic stem cell (HSC) numbers collected in cord blood (CB) at the birth of a baby is a limiting factor for efficacious use of CB in hematopoietic cell transplantation (HCT). We now demonstrate that collecting and processing of human CB at 4°C within minutes of the baby’s birth results in significantly enhanced numbers of rigorously defined phenotypic HSC and self-renewing NSG immune-deficient mouse engrafting and SCID-repopulating cells. This was associated with decreased numbers of hematopoietic progenitor cells (HPC), as noted previously for hypoxia collected/processed cells blocking ambient air induced differentiation of HSC to HPC. We have thus defined a simple, cost-effective, means to collect increased numbers of CB HSC, of potential use for clinical CB HCT.
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