作者:高立艳 徐开林 潘秀英作者单位:徐州医学院护理学系,江苏 徐州 221002 / {) H2 O& n' J! w" q4 K9 D
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. ?; A& X% i$ Z l# D* v' ^ , \* \( \, x; n* \3 }" H" o & m& b9 M# h, y # W, G' s5 I- [9 {! M. } & y ^/ _: d* |" y3 d & M; T/ A) G% S, [1 K* D, H 【摘要】 目的 观察粒细胞集落刺激因子(G-CSF)和粒-巨噬细胞集落刺激因子(GM-CSF)单独、同时或序贯联合应用动员小鼠外周造血干细胞时,外周血T细胞亚群的变化。方法 72只BALB/c小鼠随机分成A、B、C、D、E、对照组6组,皮下注射:A组,重组人(rh)G-CSF 400 μg·kg-1·d-1;B组,rhGM-CSF 400 μg·kg-1·d-1;C组,rhG-CSF 200 μg·kg-1·d-1 rhGM-CSF 200 μg·kg-1·d-1;D组,rhGM-CSF 400 μg·kg-1·d-1(前3天)+rhG-CSF 400 μg·kg-1·d-1(后2天);E组,rhG-CSF 400 μg·kg-1·d-1(前3天)+rhGM-CSF 400 μg·kg-1·d-1(后2天);对照组,生理盐水0.2 ml,连续注射5天。动态观察外周血白细胞计数,同时通过流式细胞仪测定外周血T细胞亚群的变化。 结果 rhG-CSF与rhGM-CSF联合方案动员外周血白细胞计数较高;动员后各实验组CD 3细胞、CD 3CD 8细胞、CD 3CD-4CD-8细胞增加,CD 3CD 4/ CD 3CD 8比值下降,GM-CSF明显提高了CD 3CD-4CD-8细胞比例。结论 G-CSF和GM-CSF动员小鼠外周血造血干/祖细胞过程中对T淋巴细胞亚群的数量和比例有一定的影响,其可能有免疫调节作用。 1 y- @' f) `6 ^ C3 C5 i; H
【关键词】外周血干细胞 动员 粒细胞集落刺激因子 粒-巨噬细胞集落刺激因子 T淋巴细胞亚群' f2 g* f4 h( q3 o( c2 T
Changes of T cell subsets in the peripheral blood of mice after mobilization of 2 w& P+ q r* O6 E' C$ X: f 7 o: n5 O1 }! d0 ~+ y* B/ R( W* i3 |* lhematopoietic stem cells by G-CSF and GM-CSF / B2 }2 O9 j# W/ i6 Y! C ! K7 t# U* I6 L$ \+ y2 CGAO Li-yan1, XU Kai-lin2, PAN Xiu-ying2: O& i- \* p. M: D
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(1. School of Nursing, Xuzhou Medical College, Xuzhou, Jiangsu 221002, China;$ F. `; t3 a2 q0 A/ V9 r
2 L2 d8 _% h B# z* c$ [# [1 e! J( y2. Department of Hematology, Affiliated Hospital of Xuzhou Medical College)5 }: ~$ p; M# a7 h& S
8 U7 D7 D$ a4 g/ O" oAbstract: ObjectiveTo observe the changes of T cell subsets in the peripheral blood of mice after the mobilization of hematopoietic stem cells with granulocyte colony stimulating factor (G-CSF) and granulocyte-macrophage colony stimulating factors (GM-CSF) given alone, concurrently, or in sequential combination. Methods72 BALB/c mice were divided into 6 groups (n=12 each): groups A, B, C, D, E, and the control group to proceed with the following regimens for mobilization respectively: group A. rhG-CSF 400 μg·kg-1·d-1 alone; B. rhGM-CSF 400 μg·kg-1·d-1 alone; C. concurrent combination of rhG-CSF 200 μg·kg-1·d-1 and rhGM-CSF 200 μg·kg-1·d-1; D. sequential combination of rhGM-CSF 400 μg·kg-1·d-1 for 3 days followed by rhG-CSF 400 μg·kg-1·d-1 for 2 days; E. sequential combination of rhG-CSF 400 μg·kg-1·d-1 for 3 days followed by rhGM-CSF 400 μg·kg-1·d-1 for 2 days; and control group. subcutaneous saline 0.2 ml for 5 successive days. The white blood cells (WBC) were counted under microscope; the percentile changes of T cell subsetswere assayed by flow cytometry at serial time points. ResultsThe yields of WBC were significantly higher after the combined use of G-CSF and GM-CSF for mobilization than those after the use of rhG-CSF or rhGM-CSF alone. Compared with that in the control group, the percentages of CD 3,CD 3CD 8 and CD 3CD-4CD-8T cells were all increased, and the ratio of CD 3CD 4/CD 3CD 8 was reduced in the experiment groups. The use of GM-CSF caused marked increase in the proportion of CD 3CD-4CD-8. ConclusionIn the process of mobilization of hematopoietic stem cells, G-CSF and GM-CSF will alter the number and the proportion of T cell subsets, possibly through an immunoregulatory function. 1 P- V' r8 N2 ~$ _- K d. g) l) ^: t/ `3 Q4 `+ X3 k5 b" c; e* j
Key words: mobilization; granulocyte colony stimulating factor; granulocyte-macrophage colony stimulating factor;T lymphocyte subsets' s5 N2 p/ a x2 ^7 v- i* m
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