本文使用TA2小鼠及其可移植性乳腺癌模型观察一种中草药提取物——Iq7611对肿瘤放射敏感性的影响。结果表明,单独使用Iq7611对肿瘤生长没有抑制作用,而Iq7611+1,500rad的联合放疗则比单纯1,500rad的治疗效果为佳,并得到肿瘤放射敏增比为1.25,提示Iq7611可能具有提高肿瘤组织放射敏感性的作用。 This article uses TA2 mice and its transplantable breast cancer model to observe the effect of an Chinese herbal extract, Iq7611, on radiosensitivity of tumors. The results showed that the use of Iq7611 alone had no inhibitory effect on tumor growth, but Iq7611+1,500rad combined radiotherapy was better than a 1,500rad treatment alone, and the tumor radiosensitivity increase ratio was 1.25, suggesting that Iq7611 may have enhanced tumor tissue radiation The role of sensitivity.