癌变·畸变·突变 ›› 2010, Vol. 22 ›› Issue (1): 48-0051.doi: 10.3969/j.issn.1004-616x.2010.01.012

• 论著 • 上一篇    下一篇

微囊藻毒素LR抑制小鼠淋巴细胞免疫功能的体外研究

陈华1;林祥吉1;2;汪家梨1;谢建忠1;3   

  1. 1.福建医科大学公共卫生学院,福州 350004; 2.深圳市西乡卫生监督所,深圳 518102;3.福建省肿瘤医院,福州 350014
  • 收稿日期:2009-04-20 修回日期:2009-09-27 出版日期:2010-01-30 发布日期:2010-01-30
  • 通讯作者: 陈华

Suppression of lymphocyte immune function by MC-LR in vitro

CHEN Hua1;LIN Xiang-ji1;2;WANG Jia-li1;XIE Jian-zhong1;3   

  1. 1. School of Public Health, Fujian Medical University,Fuzhou 350004;2.Xixiang Institute of Public Health Supervision,Shenzhen 518102;3.Fujian Provincial Tumor
  • Received:2009-04-20 Revised:2009-09-27 Online:2010-01-30 Published:2010-01-30
  • Contact: CHEN Hua

摘要: 目的: 探讨微囊藻毒素LR(microcystin LR,MC-LR)抑制小鼠淋巴细胞免疫功能的可能机制。 方法: 分离小鼠脾淋巴细胞,分别用含MC-LR为0、1、3、5、10 μg/ml的培养液,染毒脾淋巴细胞,MTT法检测MC-LR对小鼠T、B淋巴细胞增殖的影响;ELISA法测定淋巴细胞IL-2的含量;FCM法检测淋巴细胞凋亡率。 结果: 各MC-LR剂量组淋巴细胞的增殖指数均下降;1 μg/ml MC-LR刺激淋巴细胞分泌IL-2,而5、10 μg/ml MC-LR组却抑制淋巴细胞分泌IL-2;10 μg/ml MC-LR组淋巴细胞凋亡率明显升高(P均<0.05)。 结论: 体外培养条件下,MC-LR能明显抑制小鼠脾淋巴细胞增殖,降低淋巴细胞因子IL-2的含量并诱导淋巴细胞凋亡。

关键词: 微囊藻毒素LR, 淋巴细胞, IL-2, 免疫功能

Abstract: OBJECTIVE: To explore the suppression mechanism of MC-LR on lymphocyte immune function in mice. METHODS: Mice splenic lymphocytes were treated with MC-LR at the dose of 0, 1, 3, 5, 10 μg/ml in vitro. The T and B lymphocyte proliferations were examined by MTT assay. The production of IL-2 in cells was measured by ELISA and the apoptosis rate of lymphocytes was deteceted by FCM. RESULTS: The lymphoproliferation was suppressed by MC-LR at all doses. The production of IL-2 was increased at 1 μg/ml but decreased after treatment with MC-LR at 5 and 10 μg/ml. The rate of lymphocyte apoptosis was increased at 10 μg/ml in vitro. CONCLUSION: MC-LR could decrease the production of IL-2 of mouse lymphocyte but increase its apoptosis in vitro. MC-LR could markedly inhibit mice lymphocyte proliferation in vitro.

Key words: microcystin LR, lymphocyte, interleukin-2, immune function

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