辐射防护通讯 ›› 2015, Vol. 35 ›› Issue (2): 13-15.

• 研究通报 • 上一篇    下一篇

60Co γ射线对人离体外周血CDKN1A基因表达水平的影响

刘建功, 党旭红, 张忠新, 杨彪, 段志凯   

  1. 中国辐射防护研究院, 太原, 030006
  • 收稿日期:2015-03-20 出版日期:2015-04-20 发布日期:2025-02-11
  • 作者简介:刘建功(1981- ),男,2005年毕业于山西医科大学临床医学专业,学士; 2008年毕业于山西医科大学生物化学与分子生物学专业,硕士; 助理研究员。

A Study on Gene Expression of CDKN1A from Human Peripheral Blood Induced by 60Co γ-rays

Liu Jiangong, Dang Xuhong, Zhang zhongxin, Yang biao, Duan Zhikai   

  1. China Institute for Radiation Protection, Taiyuan, 030006
  • Received:2015-03-20 Online:2015-04-20 Published:2025-02-11

摘要: 目的 探讨60Co γ射线对人离体外周血CDKN1A基因表达水平的影响。方法 收集3名健康人周围血,采用60Co γ射线照射,照射剂量率为0.313 Gy/min。提取血液总RNA,用实时荧光定量PCR方法检测CDKN1A基因的表达水平。结果 0~2 Gy剂量范围内,CDKN1A的mRNA相对表达水平随照射剂量增加而呈上调趋势,拟合的回归方程为:Y=0.8465+1.1015D(R=0.93,p<0.01),Y=0.6273+3.0883D-0.7485D2(R=0.96,p<0.05)。结论 电离辐射可诱发CDKN1A基因相对表达水平发生改变,并且随照射剂量增加而增加,其中直线方程的稳定性还有待进一步验证。

关键词: 电离辐射, 人外周血, CDKN1A, 基因表达

Abstract: To explore the effect of ionizing radiation on CDKN1A gene expression in human peripheral blood, blood samples were exposed to 60Co γ-rays at different doses. The resulted CDKN1A mRNA expression change was observed by real time PCR. For a dose of 0~2 Gy, the relationship between the CDKN1A-dose represents certain line correlation. A linear regression equation(Y=0.8465+1.1015D,R=0.93,p<0.01) and curvilinear regression equation (Y=0.6273+3.0883D-0.7485D2,R=0.96,p<0.05) has been obtained using regression analysis methods. γ-ray can induced CDKN1A gene expression changed and increase dose-dependently, but the stabilityof regression equation should be tested further.

Key words: Ionizing radiation, Human peripheral blood, CDKN1A, Gene expression

中图分类号: 

  • Q691