›› 2005, Vol. 17 ›› Issue (1): 15-18.doi:

• 论著 • 上一篇    下一篇

60Co-γ射线局部照射对荷瘤大鼠骨髓蛋白质的影响

李 箔;海春旭;秦绪军;何 伟;梁 欣;李文丽;张晓迪;赵康涛;陈宏莉;刘 瑞   

  1. 第四军医大学预防医学系毒理学教研室, 陕西 西安 710032
  • 收稿日期:2004-07-23 修回日期:2004-10-25 出版日期:2005-01-30 发布日期:2005-01-30
  • 通讯作者: 海春旭

Effects of 60Co-γ Ray Local Irradiation on Proteins of Bone Marrow in Tumor-bearing Rats

LI Bo, HAI Chun-xu, QIN Xu-jun, et al   

  1. Department of Toxicology, Faculty of Preventive Medicine,the Fourth Military Medical University, Xi'an 710032,China
  • Received:2004-07-23 Revised:2004-10-25 Online:2005-01-30 Published:2005-01-30
  • Contact: HAI Chun-xu

摘要: 背景与目的: 观察荷瘤大鼠60Co-γ射线局部照射后骨髓蛋白质和相关氧化指标的变化。材料与方法: 制备荷瘤大鼠动物模型,60Co-γ射线局部照射后分别提取非照射组和照射组大鼠骨髓检测丙二醛(MDA),还原型谷胱甘肽(GSH),氧化型谷胱甘肽(GSSH)等指标;双向聚丙烯酰胺凝胶电泳技术分析荷瘤大鼠骨髓蛋白质的差异表达。结果: 照射组MDA, GSSG含量与非照射组相比升高(P<0.01),GSH与非照射组相比降低(P<0.01),双向电泳图谱显示荷瘤大鼠经60Co-γ射线局部照射后骨髓有24个蛋白点表达发生变化,其中出现2个新蛋白点,4个蛋白点表达量下降,1个蛋白点表达量升高,17个蛋白点消失。结论: 60Co-γ射线局部照射可引起荷瘤大鼠骨髓蛋白质差异表达,其机制可能与氧化损伤有关。

关键词: 照射, 氧化损伤, 蛋白质, 双向聚丙烯酰胺凝胶电泳, 骨髓

Abstract: BACKGROUND & AIM: To observe the diffenential expression of proteins and the index of oxidative injury of bone marrow after 60Co-γray local irradiation in tumor-bearing rats. MATERIAL AND METHODS: The entitative tumor pieces were embedded into hind leg muscle of rat to prepare tumor bearing rat model. After 60Co-γray local irradiation,the bone marrow of rats in both non-irradiated and irradiated groups were removed respectively, to detect the MDA, GSH, GSSH of bone marrow, and analyze the differential expression of bone marrow proteins by using two-dimensional polyacrylamide gel electrophoresis. RESULTS: The levels of alterations of 24 proteins in irradiated group, including 2 new proteins, 4 down-regulated proteins, 1 up-regulated protein and 17 proteins disappeared. CONCLUSION: 60Co-γray local irradiation can cause differentially expressed proteins of bone marrow in tumor bearing rats, and oxidative injury may be an important factor for differentially expressed proteins.

Key words: irradiation, oxidative injury, proteins, two-dimensional polyacrylamide gel electrophoresis, bone marrow