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• 基础研究 • 上一篇    下一篇

Percoll密度离心富集慢性粒细胞白血病DC前体细胞

李杰1,邵明柏1 , 康丽花2   

  1. 1.吉林大学第一医院干部病房,吉林 长春 130021;2.吉林大学第一医院血液肿瘤科, 吉林 长春 130021
  • 收稿日期:2006-01-22 修回日期:1900-01-01 出版日期:2007-01-28 发布日期:2007-01-28
  • 通讯作者: 康丽花

Enrichment of dendritic cells precursor from chronic myelogeous leukemia by Percoll density gradients

LI Jie1,SHAO Ming-bai1, KANG Li-hua2   

  1. (1.Department of Cadre Ward, First Hospital, Jilin University, Changchun 130021, China; 2. Department of Hematology and Oncology, First Hospital, Jilin Univeisity, Changchun 130021, China
  • Received:2006-01-22 Revised:1900-01-01 Online:2007-01-28 Published:2007-01-28
  • Contact: KANG Li-hua

摘要: 目的:建立一种有效、费用低的富集慢性粒细胞白血病树突状细胞(DC)前体细胞的方法。方法:Ficoll-Hypaque液常规分离慢性粒细胞白血病(CML)外周血单个核细胞,55%Percoll密度离心,比较Percoll分离后的低密度层细胞(B组)、高密度层细胞(C组)及未经Percoll分离细胞(A组)的细胞分类、诱导后CD1a、CD86表达。结果:55%Percoll混悬液分离后的B组细胞中早幼粒和中幼粒细胞所占百分比高于A组(P<0.05)和C组细胞(P<0.01),而淋巴细胞、嗜酸性粒细胞和嗜碱性粒细胞的百分比明显少于C组,较A组也有所减少。B组细胞经诱导14 d后CD1a、CD86阳性细胞百分率明显高于C组细胞和A组细胞(P<0.01)。结论:经55%Percoll混悬液分离外周血单个核细胞可提高DC诱导的比率,且该方法无毒、费用低、易操作、分离细胞数量大,可充分满足临床DC的回输需要。

关键词: 富集 , 白血病, 髓样, 慢性 , 树突状细胞

Abstract: To set up an effective and low-price way for enriching dendritic cells precursor from chronic myelogeous leukemia by Percoll density gradients. Methods Peripheral blood mononuclear cells(PBMCs) were collected by separa tion through Ficoll-Hypaque, then PBMCs were separated by 55% Percoll gradients. The cell type and DCs expressing CD1a, CD86 were detected in the high-density group(C) ,low-density group(B) and non-Percoll separation group(A). Results After separation of 55% Percoll, the percentage of promyelocytes and myelocytes in group B was obviously higher than those in group A and group C(P<0.01). Moreover the percentages of lymphocytes, eosinophilic granulocytes and basophilic granulocytes in group B were lower than those in group C and group A. The percentages of CD1a and CD86 cells detected by FACS on 14th day in group B were higher than those in group A and group C(P<0.01). Conclusion The induced rate of dendritic cells is improved after the separation of 55% Percoll. This method is no-toxic, cheap , simple and can handle a large number of cells. It’s useful for clinical application.

Key words: enrichment, leukemia, myeloid, chronic, dendritic cells.

中图分类号: 

  • R733.72