白介素12与粒细胞集落刺激因子联合应用对急性放射病小鼠的治疗作用  被引量:6

Therapeutic Effect of rmIL-12 Combined with G-CSF on Acute Radiation Sickness Produced by γ-Ray Irradiation in Mice

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作  者:王利[1,2] 翟瑞仁[2] 逄朝霞[2] 张超[2] 余长林[1] 

机构地区:[1]军事医学科学院附属医院血液科,北京100071 [2]解放军第401医院崂山分院血液肿瘤科,山东青岛266101

出  处:《中国实验血液学杂志》2012年第4期995-999,共5页Journal of Experimental Hematology

基  金:全军科技攻关课题(编号NO08g157)

摘  要:本研究旨在探究重组鼠白介素12(rmIL-12)与粒细胞集落刺激因子(G-CSF)联合应用对γ射线急性放射病小鼠的治疗作用。56只BALB/c小鼠给予60Coγ射线6.0 Gy一次全身照射,然后随机分为照射对照、rmIL-12治疗、G-CSF治疗和rmIL-12+G-CSF治疗4组。rmIL-12治疗组小鼠于照射后1 h及此后每3 d 1次腹腔注射rmIL-12 20μg/kg,共5次;G-CSF治疗组小鼠于照射后2 h开始每天1次皮下注射G-CSF 100μg/kg,共14 d;联合治疗组给予rmIL-12+G-CSF治疗,方法同上。每天2次观察小鼠一般情况,3 d检测1次外周血细胞数,分别于照射后14 d和28d收集骨髓细胞进行集落培养。结果表明,联合治疗组小鼠外周血白细胞(WBC)数恢复时间较对照组明显提前(7 dvs 11 d),恢复速度与G-CSF治疗组相当,血小板(Plt)数开始恢复时间较对照组明显提前(11 d vs 14 d),且Plt最低值明显高于对照组(16.5%vs 8.1%,P<0.01),恢复速度与rmIL-12治疗组相当。照射后14和28 d骨髓有核细胞集落培养结果提示,联合治疗组CFU-GM、CFU-Mix均明显高于对照组(P<0.05)。结论:rmIL-12与G-CSF联合应用可明显促进急性放射病小鼠造血功能的恢复。The aim of this study is to observe the therapeutic effect of recombinant murine interleukin 12 (rmIL-12) combining with granulocyte colony stimulating factor (G-CSF) on mice irradiated by γ-rays. 56 BALB/c mice were totally irradiated by 6.0 Gy of 6o Co γ-ray and randomly divided into irradiation control group, rmIL-12 treatment group, G-CSF treatment group and combination therapy (rmIL-12 plus G-CSF) group, rmIL-12 20 μg/kg was administrated intraperitoneally at 1 h following irradiation, and was administrated every 3 days after irradiation for 4 times in rmIL-12 treatment group. G-CSF 100 μg/kg was administrated subcutaneously the 2 h following irradiation for 14 d in G-CSF treatment group. The dose and method of rmIL-12 and G-CSF in combination therapy group were same as in rmIL-12 group and G-CSF group. The general status of mice were observed twice a day, the changes in body weight, peripheral blood cell (WBC and Plt) counts were examined once every three days, bone marrow cells were collected to perform colony cultivation on day 14 and 28 after irradiation. The results showed that WBC count recovery time in combination therapy group was significantly earlier than that of the control group (7 d vs 11 d), WBC count recovery velocity in the combination therapy group was no significant different from that of the G-CSF treatment group. Combined therapy significantly promoted Plt count recovery, resulting in less profound nadirs (16.5% vs 8. 1% ,P 〈 0.01 ) and rapid recovery to normal levels (11 d vs 14 d), Plt count recovery velocity in the combination therapy group was no significant different from that of the rmIL-12 treatment group. Culture of bone marrow cells in semi-solid medium also demonstrated that combination of rmIL-12 and G-CSF could stimulate bone marrow cells to form more CFU-GM and CFU-Mix than those of the irradiation control group in vitro on day 14 and 28 after irradiation ( P 〈 0.05 ). It is concluded that the combination of rmIL-12 and G-CSF can signif

关 键 词:白介素12 粒细胞集落刺激因子 急性放射病 造血损伤 

分 类 号:R818[医药卫生—放射医学] R818.05[医药卫生—临床医学]

 

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