癌变·畸变·突变 ›› 2009, Vol. 21 ›› Issue (6): 443-446.doi: 10.3969/j.issn.1004-616x.2009.06.009

• 论著 • 上一篇    下一篇

环磷酰胺两次间隔注射给药对正常大鼠免疫功能的影响

吴友苹1;张升2;陈雁虹1;吴洪海1;俞亚南1   

  1. 1.浙江大学药物安全评价研究中心,浙江 杭州 310058;2.浙江省医学科学院国家新药安全评价研究中心,浙江 杭州 310013
  • 收稿日期:2009-01-14 修回日期:2009-03-31 出版日期:2009-11-30 发布日期:2009-11-30
  • 通讯作者: 吴友苹

Changes of Immunological Function after Two Separate Injections of Cyclophosphamidec in SD Rats

WU You-ping1; ZHANG Sheng2; CHEN Yan-hong1;WU Hong-hai1;YU Ya-nan1   

  1. 1.The Center for Drug Safety Evaluation and Research of Zhejiang University,Hangzhou 310058; 2.National Safety Evaluation for New Drug, Zhejiang Academy of Medical Sciences, Hangzhou 310013,Zhejiang, China
  • Received:2009-01-14 Revised:2009-03-31 Online:2009-11-30 Published:2009-11-30
  • Contact: WU You-ping

摘要: 背景与目的: 研究环磷酰胺(CP)2次间隔注射对正常大鼠免疫功能的影响。 材料与方法: SD大鼠首次腹腔注射60 mg/kg CP后6 d进行血液学检测,同时进行相同剂量的第2次注射,第2次CP注射后9 d再次进行血液学检查。采用流式细胞术分析外周血淋巴细胞亚群的变化,取脾脏和胸腺进行脏器系数、淋巴细胞增殖情况分析。另用卵清蛋白(OVA)对大鼠进行免疫,60 mg/kg CP 两次间隔注射后,用间接ELISA法检测大鼠血清中抗OVA特异性抗体水平。实验均设对照组。 结果: 与对照组比较,首次注射CP 6 d后白细胞(WBC)数出现明显下降(P<0.01),且淋巴细胞(Lymp)、中性粒细胞(Neut)、单核细胞(Mono)等均出现了不同程度的下降(P<0.01)。第2次注射9 d后进行血液学检测,与首次注射相比较WBC、Neut、Lymp、Mono数量均出现显著增加(P<0.01),其中Neut、Mono较正常对照组高(P<0.05),而Lymp数量仍显著低于正常对照组(P<0.01);外周血CD4+ T淋巴细胞比例明显升高(P<0.05);CD8+ T淋巴细胞比例明显降低(P<0.05),CD4+/CD8+比例明显升高(P<0.05);CP组脾脏重量、脾脏系数、淋巴细胞增殖情况与对照组比较差异均有统计学意义 (P均<0.05)。CP组血清抗OVA特异性抗体水平明显下降(P<0.01)。 结论: 大鼠两次间隔腹腔注射CP(60 mg/kg)其外周血血液学指标、淋巴细胞亚群、脏器系数的变化可能与CP免疫增强作用有关,该条件下CP可能有促进大鼠细胞免疫功能的作用。

关键词: 环磷酰胺, 血液学指标, 淋巴细胞亚群

Abstract: BACKGROUND AND AIM: To explore the possible mechanism that two administrations of cyclophosphamide (CP) could potentiate immunity in normal SD rats. MATERIALS AND METHODS: Peripheral blood was analyzed by ADVIA 2120 blood-counter system and flow cytometry after two treatments with 60 mg/kg of CP in vivo. Spleen lymphocyte proliferation was measured with Mono-nuclear cell direct cytotoxicity assay (MTT), the anti-OVA antibody response were assessed by ELISA. RESULTS: Cells in peripheral blood were decreased six days after the first CP administration, but increased nine days after second CP injection. A significant elevation was also observed in splenic proliferation. Consistently, the ratio of CD4+ T lymphocytes and CD4+/CD8+ was markedly increased (P<0.05). However,anti-OVA antibody response was suppressed during these processes. CONCLUSION:These changes might be associated with the immune potentiating effect of CP, treated with two CP (60 mg/kg) injections in 6 days might enhance the immunological function of SD rats.

Key words: cyclophosphamide, hematological index, lymphocyte subset

中图分类号: