FUDR保留灌肠对直肠癌细胞增殖能力的影响

Influence of FUDR Through Retention-enema on Cell Proliferation of Rectal Carcinoma

目的：比较氟脲嘧啶脱氧核苷（ＦＵＤＲ）、５－氟尿密啶（５－ＦＵ）保留灌肠对直肠癌增殖细胞抗原（ＰＣＮＡ）表达的影响。方法：直肠癌患者 ８０例，随机分成 ＦＵＤＲ组（３０例）、５—ＦＵ组（３０例）、对照组（２０例），术前每晚分别灌入 ＦＵＤＲ（５００ｍｇ）、５－ＦＵ（５００ｍｇ）、生理盐水各２０ｍｌ，行保留灌肠，连续 ７天。第 １天、第 ８天钳取癌灶粘膜送检，行ＰＣＮＡ免疫组化染色。结果：ＦＵＤＲ组与 ５—ＦＵ组治疗后其 ＰＣＮＡ阳性细胞数均明显减少，且 ＦＵＤＲ组治疗后其 ＰＣＮＡ阳性细胞数减少较 ５—ＦＵ组更为明显，而生理盐水对照组 ＰＣＮＡ变化无意义。结论：ＦＵＤＲ Ｈ ５—ＦＵ保留灌肠均可抑制直肠癌细胞增殖，且同一浓度的 ＦＵＤＲ作用较 ５－ＦＵ更显著，故ＦＵＤＲ保留灌肠应作为直肠癌术前常规治疗方案。

AIM: To study the influence on the expression of proliferation cell nuclear antigen(PCNA) in rectal carcinoma through retention -enema with FUDR and 5 -FU. METHODS: 80 cases of rectal carcinomas were randomized into three groups: the FUDR group(30 cases), the 5-FU group(30 cases) and normal control group(20 cases), treated with FUDR(500mg), 5-FU(500mg) and normal saline(20ml ) everynight through retention - enema separately for serven days- Mucosa of rectal car cinoma were sampled and PCNA protein were simultaneously detected by imrnunohistochemical method on the first and eighth day. RESULTS: The expression of PCNA was significantly decreased in both FUDR group and 5 - FU group after treatment(P < 0. 01). The decrease in FUDR group was more obvious than that in 5-FU group(P < 0. 05), and the change in normal control group was of no significance(P >0. 1). CONCLUSION:The cell proliferation of rectal carcinoma could be inhibited by FUDR and 5-FU through retention-enema. The effects of FUDR was more obvious than that of 5-FU in the same concentration. so the treating method through retention-enema with FUDR should be used as a routine therapeutic scheme befOre operation.