癌变·畸变·突变 ›› 2002, Vol. 14 ›› Issue (2): 84-086.doi: 10.3969/j.issn.1004-616x.2002.02.005

• 论著 • 上一篇    下一篇

增殖细胞核抗原在碳酸锂对抗黄曲霉毒素B1 诱导大鼠肝癌过程中的表达及意义

陆 爽1;张爱华1;黄晓欣2;任渝江2   

  1. 1. 贵阳医学院预防医学系毒理教研室,贵州 贵阳 550004; 2. 解放军第44 医院消化内科,贵州 贵阳 550009
  • 收稿日期:2001-04-11 修回日期:2001-08-22 出版日期:2002-04-30 发布日期:2002-04-30
  • 通讯作者: 陆 爽

EXPRESSION AND SIGNIFICANCE OF PROLIFERATING CELL NUCLEAR ANTIGEN IN RESISTANCE OF LITHIUM CARBONATE TO AFLATOXIN B1-INDUCED HEPATOCARCINOGENESIS IN RATS

LU Shuang1; ZHANG Ai-hua1; HUANG Xiao-xin2; Ren Yu-jiang2   

  1. 1. Department of Toxicology, Guiyang Medical College, Guiyang 550004, China; 2. Department of Gast roenterology, 44th Hospital of PLA, Guiyang 550009, China
  • Received:2001-04-11 Revised:2001-08-22 Online:2002-04-30 Published:2002-04-30
  • Contact: LU Shuang

摘要: 目的与方法:应用免疫组化法检测碳酸锂(Li2CO3) 对抗黄曲霉毒素B1 (AFB1) 诱导Wistar 大鼠肝癌过程中增殖细胞核抗原(PCNA) 的表达及意义。结果:PCNA 在诱癌早期(实验第6 周) 即有表达,第9 、10 周显著升高,差异有显著性( P < 0. 01) 。阳性对照组(B 组) PCNA 阳性率最高,碳酸锂同时给药组(C 组) 及先期给药组(D 组) 阳性率显著降低,C 组阳性率略高于D组。结论:碳酸锂明显对抗AFB1 诱导肝癌过程中PCNA 的表达,通过抑制细胞增殖从而起到抗癌作用; PCNA 的免疫组化检查有助于肿瘤的早期发现和追踪观察。

关键词: 增殖细胞核抗原, 碳酸锂, 黄曲霉毒素B1, 实验性肝癌, Wistar 大鼠

Abstract: Purpose and Methods : Using immunohistochemical assay , the expression and significance of proliferating cell nuclear antigen (PCNA) were studied in aflatoxin B1 hepatocarcinogenesis of Wistar rats treated with lithium carbonate (Li2CO3) . Results : The expression of PCNA occurred in the early stage of carcinogenesis and significantly increased at week 9 or 10. The positive rate of positive control group (B) was highest and that of group treated simultaneously (C) and group pretreated with Li2CO3 (D) significantly decreased , but group C was higher than group D. Conclusion : It suggested that Li2CO3 has the effect on anti-expression of PCNA in aflatoxin B1-induced hepatic carcinoma of the rat and can rest rain cell proliferation ,and that the immunohisto-chemical assay of PCNA may help early diagnosis and monitoring.

Key words: proliferating cell nuclear antigen, lithium carbonate, aflatoxin B1, hepatic carcinoma, Wistar rat

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