癌变·畸变·突变 ›› 2001, Vol. 13 ›› Issue (3): 157-159.doi: 10.3969/j.issn.1004-616x.2001.03.007

• 论著 • 上一篇    下一篇

紫外线照射后可移植性白血病模型微核研究

万美蓉1 ,陈绍志2   

  1. 1. 徐州医学院附院中心实验室,江苏 徐州 221002;  2. 徐州市儿童医院内科,江苏 徐州 221005
  • 收稿日期:2000-03-02 修回日期:2001-02-26 出版日期:2001-07-30 发布日期:2001-07-30

EFFECT OF ULTRAVIOLET IRRADIATION ON THE MICRONUCLEI IN TRANSPLANTABLE LEUKEMIA MODEL

WAN Mei-rong1, CHEN Shao-zhi2   

  1. 1. The Central Laboratory of A ffiliated Hospital of Xuz hou Medical College, Xuz hou 221002, China; 2.The Internal Medicine of Chil dren's Hospital of Xuz hou, Xuz hou 221005, China
  • Received:2000-03-02 Revised:2001-02-26 Online:2001-07-30 Published:2001-07-30

摘要: 目的:研究可移植性T 细胞白血病模型(L7212 细胞) 在不同剂量紫外线照射后的微核变化。方法:应用胞质阻断培养法检测L7212 细胞微核。结果:发现该模型对紫外线敏感,当紫外线剂量达45 ×10 - 7 J / (s·mm2 ) 以上时,其微核细胞率、微核率均高于对照组( P < 0. 05) ) , 并且剂量2效应曲线呈Y= a + blgX( P < 0. 01) 。结论:应用胞质阻断法检测微核比常规培养法灵敏。

关键词: 小鼠白血病, L7212 细胞, 微核, 紫外线

Abstract: Purpose : To study the micronuclear changes in t ransplantable T cell leukemia model (L7212 cells) after ult raviolet irradiation. Method : Cytokinesis2block (CB) micronucleus method was used. Results : The micronucleated cell and micronucleus frequencies in the CB2blocked model ( + CB group) were higher than those in the 2CB cont rol group when the dosage was over 45 ×10 - 7 J / (s·mm2) . A dose2effect curve showed the relation ship of Y= a + blgX( P < 0. 01) . Conclusion : Cytokinesis2block micronucleus method is more sensitive than the conventional culture for the measurement of micronuclei induced by ult raviolet irradiation.

Key words: murine leukemia, L7212 cell, micronucleus, ultraviolet ray

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