Recombinant human deoxyribonuclease for hematopoietic stem cell processing.

Recombinant human deoxyribonuclease for hematopoietic stem cell processing.
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用于造血干细胞加工的重组人脱氧核糖核酸酶。

DOI:
10.1089/scd.1.1995.4.99
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发表时间:
1995
期刊:
Journal of hematotherapy.
影响因子:
--
通讯作者:
Rowley,SD
Rowley,SD
中科院分区:
--
文献类型:
--
作者:
Rowley,SD

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许多试剂用于收集、处理和储存用于移植的造血祖细胞。为了减少移植最终成分的潜在变化,这些试剂在安全性、效力和功效方面应该是一致的。医药级试剂是理想的选择,但通常无法获得。最近,重组人脱氧核糖核酸酶(DNase)被批准用于治疗患有囊性纤维化肺部并发症的患者。我们测试了这种药物对造血祖细胞的毒性。这些细胞暴露于本实验室先前使用的重组酶和牛 DNase 的一系列孵育浓度中。短期孵育(1小时)或直接添加至培养基后,未观察到有核细胞或造血祖细胞的损失。在免疫清除技术中使用重组酶与鼠抗 B 细胞抗体和兔补体,没有观察到增加的毒性。对于两种酶源,观察到冷冻保存的骨髓细胞解冻后对细胞恢复的不同影响。这些数据表明,药物级重组人 DNA 酶可以替代以前使用的动物源试剂级蛋白质。
Numerous reagents are used in the collection processing and storage of hematopoietic progenitor cells for transplantation. To decrease potential variations in the final component for transplantation, these reagents should be uniform in safety, potency, and efficacy. Pharmaceutical-grade reagents are ideal but often are not available. Recently, recombinant human deoxyribonuclease (DNase) was approved for the treatment of patients suffering from the pulmonary complications of cystic fibrosis. We tested this pharmaceutical for toxicity to hematopoietic progenitor cells. These cells were exposed to a range of incubation concentrations for both the recombinant enzyme and bovine DNase previously used in this laboratory. No loss of nucleated cells or hematopoietic progenitors was observed after short-term incubation (1 h) or with direct addition to the culture medium. No incremental toxicity was observed in using recombinant enzyme with murine anti-B cell antibodies and rabbit complement in an immunologic purge technique. A variable effect on cell recovery after thawing of cryopreserved bone marrow cells was observed for both enzyme sources. These data suggest that the pharmaceutical-grade, recombinant human DNase may substitute for previously used reagent-grade protein from animal sources.
使用许可的电解质溶液作为骨髓采集的组织培养基的替代品
DOI: --
发表时间: 1993
期刊: Transfusion
影响因子: 2.9
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发表时间: 1990
期刊: Blood
影响因子: 20.3
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发表时间: 1991
期刊: Journal of clinical oncology : official journal of the American Society of Clinical Oncology
影响因子: --
作者:
Rowley,SD;Miller,CB;Piantadosi,S;Davis,JM;Santos,GW;Jones,RJ
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发表时间: 1992-01-01
期刊: Journal of hematotherapy
影响因子: --
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DOI: --
发表时间: 1993
期刊: The Lancet
影响因子: --
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