血清胸腺因子9肽对人结肠癌HT-29的抑瘤作用

目的：观察血清胸腺因子9肽对人结肠癌HT-29移植瘤的抑制作用。方法：裸鼠皮下接种人结肠癌HT-29细胞,瘤块生长至体积约100mm~3后,分为血清胸腺因子9肽高、中、低剂量组（分别为1.25、0.625、0312mg/kg）、环磷酰胺阳性对照组（30mg/kg）和生理盐水空白对照组,每组10只,血清胸腺因子9肽各剂量组和空白对照组裸鼠每天皮下给受试物1次,连续28d。阳性对照组腹腔注射给药,每周2次,连续4周。每周称量体质量、测量瘤块长径和短径2次。于末次给药后24h处死动物,称取体质量、测量瘤块长径和短径,计算体积后,剥离肿瘤称瘤质量,计算相对肿瘤增殖率和抑瘤率。实验重复3次。结果：血清胸腺因子9肽高、中、低剂量组相对肿瘤体积与空白对照组比较均显著减小（P〈0.01或P〈0.05）,其相对肿瘤增殖率分别为50%±20%、62%±20%和77%±35%;血清胸腺因子9肽高、中、低剂量组瘤质量与空白对照组比较均明显减轻（P均〈0.01）,抑瘤率分别为45%±3%、35%±1%、27%±3%;给药前后血清胸腺因子9肽各剂量组裸鼠体质量与空白对照组比较变化不显著（P〉0.05）。结论：血清胸腺因子9肽对人结肠癌HT-29移植瘤具有明显抑制作用。

The anticancer effect of serum thymic factor 9 peptide on human colon cancer HT-29

OBJECTIVE:To observe the anticancer effect of the serum thymic factor(FTS) 9 peptide on human colon cancer HT-29 transplantation model in nude mice.METHODS:Nude mice were inoculated subcutaneously with human colon cancer HT-29 cells,grouping was performed when tumor reach a volume of approximately 100 mm~3.Tumorbearing nude mice were divided into 5 groups:FTS 9 peptide high,medium and low dose group(1.25,0.625,0.312 mg/kg,respectively),positive control(cyclophosphamide,30 mg/kg) and blank control(saline),10...