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外周血造血干细胞移植概况

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摘要 外周血干细胞移植(PBSCT)可分为自体PBSCT(auto-PBSCT)和异基因PBSCT(allo- PBSCT)。在正常情况下,外周血干细胞(PBSC)浓度很低,应用动员技术能将骨髓中的干细胞动员释放到外周血中,采用血细胞分离机的白细胞单采程序,经过1~3次采集,能获得持久移植需要的最低CD34+ 细胞量(2~2.5×106/kg受者体重)。因PBSC采集容易,无需全麻,auto-PBSCT后造血功能恢复快,移植后并发症少,过去10年中,美国的auto-PBSCT几乎替代自体骨髓移植。allo-PBSCT后,造血恢复快,但慢性移植物抗宿主病发病率较高,这也增加了移植物对抗肿瘤的效果。健康供者使用细胞生长因子动员,是否存在长远的影响,仍不清楚,目前allo-PBSCT不能取替异体骨髓移植。本文就PBSC动员、采集、制品处理、保存及移植有关的问题进行探讨。
作者 洪缨 贾苍松
出处 《国外医学(输血及血液学分册)》 2005年第5期424-427,共4页 Foreign Medical Sciences(Section of Blood Transfusion and Heanatology)
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