实用肝脏病杂志 ›› 2015, Vol. 18 ›› Issue (5): 521-524.doi: 10.3969/j.issn.1672-5069.2015.05.018

• 原发性肝癌 • 上一篇    下一篇

二乙基亚硝胺诱导肝癌小鼠肝组织胶原纤维的变化*

胡景峰,李三强,吴秦川,付指挥,马曌,韩红梅,杨博,丁康熙,杨省柯,卢华杰   

  1. 471003 河南省洛阳市 河南科技大学医学院肝脏损伤与修复分子医学重点实验室
  • 收稿日期:2015-03-12 出版日期:2015-09-10 发布日期:2016-02-18
  • 通讯作者: 李三强,E-mail:sanqiangli2001@163.com
  • 作者简介:胡景峰,男,24岁,大学本科。研究方向:肝脏损伤分子机制研究
  • 基金资助:
    国家自然科学基金资助项目(No.81201558);河南省高校科技创新人才支持计划资助项目(13HASTIT025);河南省重点科技攻关资助项目(No.122102310030);河南省教育厅科学技术研究资助重点项目(No.12B310003)

Changes of collagen in liver tissues of mice with N-nitrosodiethylamine-induced liver cancer

Hu Jingfeng,Li Sanqiang,Wu Qinchuan,et al.   

  1. Key Molecular Medical Laboratory of Liver Injury and Repair,Medical School,Henan University of Science and Technology,Luoyang 471003,Henan Province
  • Received:2015-03-12 Online:2015-09-10 Published:2016-02-18

摘要: 目的 观察胶原纤维在肝癌发生发展过程中的变化及其与癌变的关系。方法 饲养清洁健康BALB/c小鼠40只,以30 mg/ml二乙基亚硝胺(DEN)溶液作为饮用水,建立肝癌模型。在开始喂养后的0 w、4 w、8 w、12 w、16 w、20 w和24 w,各处死3只动物,对所取肝脏组织行石蜡包埋切片,采用天狼新红染色,对胶原纤维进行检查。通过Image-Pro Plus 6.0对采集的样本进行光密度积分(IOD)定量,应用SPSS 16.0软件对测得的数据进行ANOVA显著性分析和Student-Newman-Keuls检验。结果 小鼠在诱癌剂作用20 w后肝组织发生癌变;在4 w末,小鼠肝组织胶原纤维IOD为(97.610±18.640),明显低于8 w末胶原纤维IOD水平[(377.054±63.668),P<0.05];在8 w末,胶原纤维IOD为(377.054±63.668),明显低于12 w末胶原纤维IOD[(625.875±110.846),P<0.05];在16 w末,胶原纤维IOD为(847.289±53.473),显著低于20 w末胶原纤维IOD[(1671.301±292.593),P<0.01];在20 w末,胶原纤维IOD为(1671.301±292.593), 显著低于24 w末胶原纤维IOD[(3968.450±138.949),P<0.01]。结论 胶原纤维在癌变的整个过程中沉积量逐渐增加,变化明显,可能与肝组织的损伤修复和癌变的扩散密切相关。

关键词: 肝癌, 二乙基亚硝胺, 胶原纤维, 小鼠

Abstract: Objective To observe the change of collagen in the development of liver cancer in mice with N-nitrosodiethylamine(DEN)-induced liver cancer. Methods Forty BALB/c mice were fed with DEN solution at concentration of 30 mg/ml for routine beverage. Three mice were sacrificed at w 0,w 4,w 8,w 12,w 16,w 20 and week 24 after DEN solution feeding,and the liver tissues were collected each time and embedded in paraffin for pathological examination. The collagen fibers were stained by sirius red staining. The integrated optical density(IOD) of samples were obtained by Image-Pro Plus 6.0. Results The liver cancer was successfully induced at week 20 after DEN intervention as confirmed by pathological check-up;The IOD levels of collagen in liver tissues at week 4 was(97.610±18.640),significantly lower than at week 8[(377.054±63.668),P<0.05];the IOD at week 8 was (377.054±63.668),significantly lower than at week 12[(625.875±110.846),P<0.05];the IOD at the end of week 16 was(847.289±53.473),significantly lower than at week 20 [(1671.301±292.593),P<0.01];the IOD at week 20 was(1671.301±292.593),significantly lower than at week 24[(3968.450±138.949),P<0.01]. Conclusions During the development of liver cancer,the amount of collagen fiber in liver tissues increases gradually, which might be involved in the carcinogenesis.

Key words: Liver neoplasm, N-nitrosodiethylamine, Collagen, Mice